SOLARIS

SOLARIS

4.600,00 7.600,00 

(29 customer reviews)

Waw, waw, waw. This amplifier impressed me in all possible ways. Sure you might not love the way it looks but that’s personal. The Audiovalve Solaris doesn’t come cheap but in return you get a reference headphone amp, with a large number of in -and outputs that can handle low impedance, high impedance and even electrostat headphones all in one. If that’s not enough for you then there’s also the perfect build quality, the integrated phono module and the fact that you can use it as a speaker amp.

The Audiovalve Solaris is a prefect TOTL do-it-all amplifier, and yes, I love it.

Features & Full Specs can be found on the last page

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Description

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an  multifunctional ultimate headphone amplifier for all headphones on this planet

 

 

 

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Darren Henley of thenewold.co wrote (October 2019):
“…the Solaris is a remarkable headphone amplifier that drove every headphone I tested with power and grace. By grace, I mean it balances its impressive technical strengths with supreme musicality. It delivers a near-perfect blend of tonal weight, color, dynamics, force, and immediacy. Of course, this is in my system, with my headphones, and is based on my preferences… the Solaris has the immediacy and speed of a SET amp, and in my experience doesn’t prioritize recorded artifacts over the musical content. That’s not to say it doesn’t check all the little boxes: rock-solid imaging, extended bandwidth, exceptionally natural dimension, SET-like speed, and power on demand…”



Barrie Martins of The StereoTimes concluded (September 2019):
“…this sophisticated headphone amplifier brought a new sense of focus and clarity to the music that I hadn’t heard before through a pair of headphones. I’ve heard planner loudspeakers before and loved them, but this was an animal of a different color. Based on my experience this is a winning combination headphone amplifier and set of headphones if I ever heard one. I’ve a new appreciation for CanJam and all those in pursuits of personal gear for either their desktop or by their bedside. I am hereby smitten! Highly recommended!” CLICK HERE to read the entire review.
Lieven of Headfonia.com wrote (Feb.2018):

“…another thing I really love about the Solaris are the dynamics and speed with which it delivers your music, the Solaris has great PRaT. On top of all this from bass to treble you get a very high resolution, the level of detail just is impressive. A high level of detail doesn’t mean this amplifier is analytical, cause it is not. Think musicality over pure analytics but always with great clarity. If female vocals are your thing (they are for me), then you will love this amp, but in general the Solaris voices are exceptionally good, natural and romantic… the Solaris does everything so effortless, it is a pure pleasure to listen to. It’s musical, rich, extended, easy on the ear and completely non-fatiguing. What’s not to like?”
CLICK HERE to check out the entire review ..LATEST CUSTOMER FEEDBACK:


“…Solaris is a genuine high-end amplifier, and the best sounding headphone amp I have ever experienced and rivals the best 2-channel amps. It is completely dead silent until the signal hits, it can drive any headphone including electrostatics and dynamics, it is beautifully designed and finished. It is truly “universal” in that it also drives loudspeakers. An end-game piece of equipment finished like audio art, Solaris is highly recommended…”“…After living with Solaris now for three weeks I am in love. It is a beautiful piece of work. The sound quality is astounding. My headphone enjoyment has gone up by a lot. I was able to listen to two electrostatics with it and have just ordered the MrSpeakers Voce which I preferred to the Stax 009. It also drives my 91db efficient office speakers to decent listening levels. I just wanted to again thank you for the great piece of equipment. I am now curious to hear your large 2-channel amps.” 🙂 – David – One more:  I am using it now with MrSpeakers Ether C Flow dynamic headphones and they sound much improved in ways that my previouys amps from Woo Audio and Schiit could not achieve. I look forward to the upgrade to the Voce and will let you know what I think”.

“…After living with Solaris now for three weeks I am in love. It is a beautiful piece of work. The sound quality is astounding. My headphone enjoyment has gone up by a lot. I was able to listen to two electrostatics with it and have just ordered the MrSpeakers Voce which I preferred to the Stax 009. It also drives my 91db efficient office speakers to decent listening levels. I just wanted to again thank you for the great piece of equipment. I am now curious to hear your large 2-channel amps.” 🙂 – David – One more:  I am using it now with MrSpeakers Ether C Flow dynamic headphones and they sound much improved in ways that my previouys amps from Woo Audio and Schiit could not achieve. I look forward to the upgrade to the Voce and will let you know what I think”.

 

 

Dear reader,

When you have arrived here, your journey in search of the possibly best headphone amplifier in the world has come to an end. With SOLARIS you have reached the goal of what can be technically and musically developed and produced at the highest level. But you will have heard it somewhere else – otherwise you would not be here. The history of SOLARIS goes back to 1982. At that time I (Becker) developed the so-called RKV2 and applied for a patent. At the time, this work was trend-setting in the hi-fi industry in terms of the technical implementation in a circuit with simultaneous use of tubes and semiconductors in a symiosis.

At this point in time, however, the customer’s demand for good hearing was not yet so pronounced that everyone perceived the musical qualities of the concept. It was another decades before the RKV also made its well-deserved entry into the Audio Olympus. That was about 2010. The internet helped to carry the concept far beyond the country’s borders into the audiophile world. From then on, it was only going forward. Various updates and extensions followed, and these in turn culminated in products such as the RKV 3 and SOLARIS. One speaks in the context of such developments of so-called “grown structures”, these are developments which, based on the origin of a great idea, strive towards constant further completion without ever leaving the base. At least that’s how we do it at AudioValve. In other companies, on the other hand, concepts are completely abandoned because their technological continuation turns out to be no longer up-to-date due to changing framework conditions and then culminates in a model change.

So you see, there are two camps, one that holds on to what has always been too good – like us – and the other that has to recognize that their concept is proving to be invalid and can only be cleaned up by a radical cut can, which means something like – give up and make new. DAC`s e.g. are such products, they are hardly finished, they are already out of date again, so quickly is the technology progress.

 

Audio Valve Solaris-DAC  – State-of-the-Art – more than just a headphone amp!

The latest 2018 version. Based on the concept of Audio Valve’s Luminare, the form and equipment of Solaris has been adapted to RKV 3. In addition to extended features like balance-control, more inputs and a remote control which has been integrated for volume, the front plate of Solaris now has the same connection options as Luminare while offering twice the performance on all outputs which on average is 8-12 watt per channel, depending on the headphones’ impedance. Solaris-DAC is the logical synthesis of Luminare and RKV 3 and reflects perfectly what the Audio Valve team defines as STATE-OF-THE-ART product in the premium class of headphone applications when talking to a number of customers worldwide.

 

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The Solaris-DAC is more than just a headphone amp, it’s more like a Swiss Army Knife in the Audio World, a full-fledged desktop system. It provides inputs for all sorts of headphones including Stax, analog inputs, USB input for music server and computer, MM phono input, pre-amp out for power amps, direct speaker output for high sensitive loudspeaker… ..and THE ONE AND ONLY headphone amplifier on the market that is able to drive all standard headphone loads, starting from 3 Ohm up to 145 kOhm and speakers too.

 

BRAND NEW REVIEWS:

Martin Mertens about the Solaris w/DAC in the Ear-In magazine (May 2018):  “…the Solaris DAC from AudioValve is a high-end headphone amp that boosts all headphones to a new level of sound reproduction. In addition, the Solaris is very generous with its connections, offering every type of standard connector. Best we’ve heard…” CLICK HERE to read the entire review (in German)

 

 

( high recommend german test review click here )

HiFiMan Susvara & Audiovalve Solaris

techn. features  …

consequence double mono design
2 * 0,15mm copper for top and bottom layer
multi VIA layer grounding basis, pcb design is based on the
theoretical principles of the “kelvin – wiring”
heavy 3 mm laser cuted steel case – couted
8 power tubes ( 4 per channel ) – ECL85 / 6F5P
2 x 12 watt rms ( 200 ohm load )
full automatic DC / AC servo biasing
multi match transfomers ( PIKATRON ) included
power output mode selector – OTL / match – transfomers
ALPS volume control
BALANCE pot. +/- 3dB
PRE-OUT for active speakers or power amplifiers
remote control

2 * NEUTRIK output combi headphone jackets – 6,3mm & XLR
5 * inputs; 2 * RCA & XLR; 2 * RCA only; 1* RCA phono MM out
1 * RCA – REC output, offer all connected soures and PHONO too for sec. line ( pre ) amps
1 * pair XLR jackets for “power out” for power amps ( OTL output ratio: 10:1 )
4 * isolated heavy gold plated stereo speaker terminals for speakers

green illuminated main power switch for power ON mode and iluminated front glass
heating and plate voltage “soft start” circuit
headphone protector circuit
reversible heating / plate current limiter
installed selected OPA 134
highly accurate implementated stereo MM phono modul – “old school design”

OPTIONS:

1 – case color: standard – black standard ( or silver )
2 – “limited EDITION ivory white colored case” – hand selected parts < 1% tolerances and a lot of more expensive specails  ( also available in black at 2020 )

Based on the concept of LUMINARE, the form and equipment of SOLARIS has been adapted to RKV 3.  In addition to extended equipment features like BALANCE – control, more inputs and a remote control which has been integrated for VOLUME, the front plate of SOLARIS now has the same connection options as LUMINARE while offering twice the performance on all outputs which on average is 8 to 11 Watts per channel, depending on the headphones’ impedance. SOLARIS is the logical synthesis of LUMINARE and RKV 3 and reflects perfectly what the AudioValve team defines as “STATE OF THE ART” product in the premium class of headphone applications when talking to a number of customers worldwide. SOLARIS can be updated and equipped with DAC and is then called “SOLARIS – DAC”. SOLARIS is available in black and ivory (with surcharge), combined with golden or chrome control knobs.

tech. describtion:

OTL – transformer outless tube amplifier ( design 1982 )
double mono construction
power output: each channel 12 watt sin at 220R load in OTL mode
bandwide: 15 – > 100 000 hz
damping 3600 !
s/n ratio 100 dB
distortion 0,002 % at 1 Watt-200 Ohm load
max. OTL – mode: output 120 VAC eff
max. STAX – mode: output 480 VAC
Gain: OTL mode 34dB, STAX +12dB by output transformer ratio
PRE – GAIN:  switchable in 4 positions for all modes: -15 dB / – 10dB / 0 dB / +10 dB
input sensitifity. 0dBm, resistens 47k
Bias voltage: 300 + 580 VDC
IC – full autom. – controlled bias – class – a mode
patent full automatic servo tube biasing
power consumption min. 100 watt
size 360*320*140 mm (d.w.h.)
weight 10kg

green illuminated main power switch for power ON mode
heating and plate voltage “soft start” circuit
headphone protector circuit
reversible heating / plate current limiter
installed OPA 134
highly accurate implementated stereo MM phono modul – “old school design”

SOLARIS the ONE AND ONLY
headphone amplifier on the market that is able to drive all
standard headphone loads, starting from 3 ohm up to
145.000 ohms.

 

 

Warranty and tube Note:
On each board is the model name of the product and the name of the tubes is set. So if you are not sure which tube you need, please look at the circuit board and watch what is written there (PCL805 or ECL85 (6F5P) In mid-2015 has been changed from PCL805 on ECL85 that affects the models RKV all, Luminare and Solaris. The warranty is void if the top glass of the amplifier is taken within the warranty period. Also void the warranty, if other than that we offer tubes are used for the so-called “tube rolling”. To buy new tubes, please contact your dealer, he  has recommended tubes on stock. Incidentally Tube Rolling is simply stupid in the models RKV, Luminare and Solaris. You can convince yourself by knocking on the tubes, they will not hear any knocking sounds in the headphones.

we use a 2 channel RF remote control for the volume up and down function

Technical explanations that show why this concept provides such good results

The lower picture shows the the hum and noise that the amplifier produces
        nothing produces the amplifier, it is absolute quiet. (screen: 2mV/div.)
 
 
      
      


The picture below shows the rectangle in OTL mode at 10kHz simply impeccable.
The pixels are from the
memory scope


The picture below shows you the max. Output voltage before soft clipping in OTL mode at 220 Ohm load
per channel at 50 Vrms are on each channel 11.3
watts

     


The picture below shows you the max. rms output voltage before soft clipping in STAX mode.


Following some graphics for technically interested people …

The switch to the use of OPA 134 clearly shows the added value of the signal quality

 

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Specs

Magazines


Darren Henley of thenewold.co wrote (October 2019):
“…the Solaris is a remarkable headphone amplifier that drove every headphone I tested with power and grace. By grace, I mean it balances its impressive technical strengths with supreme musicality. It delivers a near-perfect blend of tonal weight, color, dynamics, force, and immediacy. Of course, this is in my system, with my headphones, and is based on my preferences… the Solaris has the immediacy and speed of a SET amp, and in my experience doesn’t prioritize recorded artifacts over the musical content. That’s not to say it doesn’t check all the little boxes: rock-solid imaging, extended bandwidth, exceptionally natural dimension, SET-like speed, and power on demand…”
CLICK HERE check out the entire review


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New review STEREOTIMES 2019 – september

Barrie Martins of The StereoTimes concluded (September 2019):
“…this sophisticated headphone amplifier brought a new sense of focus and clarity to the music that I hadn’t heard before through a pair of headphones. I’ve heard planner loudspeakers before and loved them, but this was an animal of a different color. Based on my experience this is a winning combination headphone amplifier and set of headphones if I ever heard one. I’ve a new appreciation for CanJam and all those in pursuits of personal gear for either their desktop or by their bedside. I am hereby smitten! Highly recommended!” CLICK HERE to read the entire review.


Neuer SOLARIS Testbericht in HIFI-STARS Ausgabe vom 28.August 2018

bitte auf den Link klicken …

HiFi_Stars_40_Audio Valve Solaris DAC.compressed-ilovepdf-compressed


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REVIEW: HiFiMan Susvara Review from Amos Barnett


AudioValve, the music machine

You could seldom find a product which will be over 35 years continuous developed. This could only exist if the technology during all trends and fashions changes survives and the purpose of the product is timeless. It´s about the Solaris from AudioValve.

If AudioValve’s portfolio meantime includes now nearly each amplifier in the hi-fi segment – preamps, power amplifiers, phono preamplifiers and power amplifiers, all in tube technology, of course – headphone amplifiers are one of the company’s core products.

So began the AudioValve story with a tube headphone amplifier, short RKV, which Mr. Becker introduced in 1982. Now offers AudioValve the RKV in the third generation as RKVIII. New comes the Luminare, which with balanced connections and a connection for electrostatic headphones according to Stax specifications offers more connection options for different headphones, as well as the Solaris, which could combine RKVIII and Luminare and offers even more connection, so that it can also be used as a preamp or even as a power amplifier, the Solaris has inherited from the RKVIII also speaker outputs. A high-quality DAC board is available for all models, which adds a USB input to the devices – which is also included in our test device.

If you want more than already extremely high “series quality” of Audio-Valve, you can also order the Solaris as a “Limited Edition”. For these devices, all components are selected by hand to 1% tolerance, in addition to a few elaborate tuning measures are used.

Equipment

The Solaris can therefore be described as the top model among the headphone amplifiers from AudioValve. The top position is mainly a result of its variety of the connection. The “heart”, the actual amplifier circuit, is the same for all headphone amplifiers from AudioValve. It’s about a tube circuit, with four ECL85 working in a Class A circuit per channel. The ECL85 is a relatively “modern” tube that came on the market in the early 1960s. It consists of two systems, a triode and a pentode, and was originally designed for use in televisions. The tube is quite common and in the nearest future, the availability of replacement tubes is in any case guaranteed. Whereby the probability, that the tubes have somewere to change, is very low. Helmut Becker has equipped each tube with a circuit that continuously monitors the quiescent current, so that the tubes always work optimally regardless of their aging state. The circuit itself is designed for transformerless operation (OTL) and delivers a power of 8 watts per channel – far more than ever a headphone needed. In the OTL mode, the Solaris can use the powerful output stages headphones with impedances between 25 and 1000 ohm drive and drive them both unbalanced and symmetrical. For balanced connection, a 4-pin XLR jack and two combi jacks are available, to which a balanced headphone with two 3-pin XLR plugs can be connected. Unbalanced, two headphones with 6.3 mm jack can be connected to the same combination jacks. For lower impedance headphones, there is the “low-impedance” mode.

This is used a step-down output transformer, which allows to operate headphones with an impedance from 3 ohms on the Solaris. At the same time, a signal and supply voltage for the normal (= not pro) headphones from Stax are available at the Stax connection socket. When switching to Stax mode, the Solaris provides the necessary voltages and signals for Stax Pro headphones.

Alternatively, a dynamic headphone with an impedance of 16 ohms can be connected. In all cases, for headphones with very low efficiency you can increase the amplification factor by switch. Also as far as the sources are concerned, the Solaris is easy to connect. Four line inputs, two of which can be balanced or unbalanced, allow the connection of DAC or CD player, tuner, tape machine or whatever. In addition, there is a phono input for MM pickups. Since such a variety of connections would suit a veritable preamplifier, the Solaris also has corresponding outputs. So you can operate a power amplifier or active speakers with him.

Passive loudspeakers can even be connected to the speaker terminals on the rear panel – the 8 watts that the Solaris can deliver, delivers amazing volumes. Incidentally, the volume can also be controlled using the enclosed remote control. Also noteworthy is the built-in DACBoard. This is anything but a simple off-the-peg solution or a standard component purchased in Asia. It was developed by Manfred Pfenning, who was also active in the field of digital technology for other well-known names such as Restek or BMC Audio. An XMOS processor receives via USB signals up to 24-bit / 384 kHz or DSD128 and leads them to further conversion, whose details AudioValve does not mention. The USB input is parallel to input 4. If a digital signal is present, input 4 automatically switches to the USB input; If no digital signal is present, the analog input 4 is active.

Sound

In the test, the Solaris DAC had a lot to do. The entire range of high-end headphones featured here – starting with the MrSpeakers magneton magnetostatic, with an impedance of only 13 ohms, marks the lower end of the test field via the conventionally dynamic AudioTechnica ATH-ADX5000 with an impedance of 420 ohms to to the electrostatic MrSpeakers Voce, which needs a supply voltage of 580 V and a corresponding processed music signal – was allowed to give an idea on the Solaris.

In addition came my familiar working headphones. Also as sources everything came from the laptop with JRiver over a high-quality external DAC up to the MM-equipped turntable for use. And how does Solaris DAC sound? Especially in any case. But it´s not so easy to explain. Tonally sound neutral many headphone amplifier or they bring the tonal tuning of the connected headphones to advantage, without imposing a noticeable own stamp on it. Of course the AudioValve behaves properly in this regard. Dynamicly it´s like a “pow”, as a headphone just could provide , as headphone amplifiers could.

Writing about resolution or detail rendering is just as idle. Rather, I wrote something about the different headphones. If there is one thing that distinguishes the sound of Solaris equally on all headphones, it is a truly remarkable accuracy, with which it seems to dedicate itself to every sound, every acoustic event. It’s like looking at a modern TV with the latest UHD and HDR technology from an old TV with PAL video standards. Similar to the pictures, every detail seems more sharply outlined, each (sound) color is finer and cleaner graded, dark parts of the picture (the bass) are darker and still show structures and gradations, where somewhere long ago indifferent deep gray prevails. Also, the lights, the heights, radiate in a way and still show gradations, where you have previously seen nothing but uniform white. The whole thing, however, only true, if you make it aware. Because in the beginning you are simply overwhelmed by the overall impression. That’s exactly what Solaris is all about. He presents his overwhelming sound characteristics as a matter of course. Not the details are in the foreground, but a clear, pure overall impression, which one without a magnifying glass.This is in my opinion the main difference between hi-fi (high fidelity) and high-end – no more questions.

May 2018 – Dr. Mertens, EAR-IN

original pdf review see below …..

 


Audio Valve Solaris DAC

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Wow, Steampunk!
That was my first thought as I unboxed the beautiful yet Industrial Audio Valve Solaris Headphone Amp/DAC. If you like your Audio equipment to be bland and understated, look elsewhere. This is big, funky, beautifully built, black metal, glass and chrome. An Audio Harley Davidson. If ever a piece of kit was oddly named, this was it.
It’s actually a fully featured Integrated Amp, 12w per channel, with 5 unbalanced and 2 balanced inputs, balanced pre-outs, 4 headphone outputs and a single USB input. Due to the complexity of my speakers, I’m only using the pre-outs and USB features for the main body of the review. The pre -outs are feeding my Audiomanufacture 4 channel DSP power amp.

I approached this review with a degree of scepticism. I’ve been seduced by valves before, their lush siren like mids with shimmering tops, but eventually return to the sturm und drang of Solid State.
I’m a drummer and a bass player, so the rhythm section and how the system keeps this tight and coherent is paramount to me.

After tracking down and installing the drivers, I let the Amp warm up for a couple of hours before starting any listening. Last month I spent 3 days at High End Munich, and was disappointed by the choice of music of many of the manufacturers, playing it safe with female vocals, at one point it was like an Eva Cassidy fest…..it sounded good but doesn’t challenge the system.
I started with the built in USB DAC with more challenging female vocals, early Joni Mitchell whose high register could break a glass and Aimee Mann, who with an inferior system can sound like she’s got the worst head cold ever. And then a firm favourite, “Inconsolable” off the Jonatha Brooke and The Story “Plumb”, where it can all fall apart when the piano and big kick drum come together in the final minutes.

 

I’m pleased to say it was a thumbs up, vocals were lively but not strident, huge, lush but not with overblown mids, with deep tuneful bass. As a drummer, tight and dynamic snares and sizzling cymbals are something I always demand from my system. So 2 choices seemed appropriate, “Trampoline” off the Joe Henry disc of the same name and the title track off the Ben Harper “Fight for your Mind”. The latter having not only drums with real snap but tight, punchy bass and sleigh bells….bring it on 🙂

Another win, it had almost all the snap of my solid state but without any doubt better mids.
I decided to finish off the digital test with a bit of speaker blowing Rock, the fab four, no….not The Beatles, Jimmy , Robert, John-Paul and Bonzo, the mighty Zepp.

I have a High Res 24/96 version of one of their greatest albums, 1975’s “Physical Graffiti” . Warming up with “Kashmir” Bonzo’s almost metronomic drumming unpinning what is actually a North African chord progression, the guitar and strings all well separated but gelling , with Percy giving it his trademark Yeas and Woos, quite a journey.
And to finish, may I recommend one of their under-rated but brilliant tracks, ” In my time of Dying”. It opens with Jimmy’s shimmering but edgy almost threatening slide guitar and then we are joined by Robert, quite subtle but with detail and nuance.  It builds into speaker shredding crescendos, the slide cuts through like a chain saw, Robert howling like a Banshee, Bonzo is attempting to turn his Ludwigs into firewood and as always JPJ keeps it all together with fleet fingered nimble but tight and punchy bass.
This track has been the nemesis of many a system……but it rocked and never lost its grip and timing.
Mightily impressed for valves……
On to Vinyl, my OL TT/Arm , Shelter M/C and Perreaux phono stage  linked via balanced cables into the Solaris. This can be a bit lean but not a bit of it here. The pre wrung out detail on LPs I’d not heard in 30 years.  The debut LP from Joan Armatrading , suddenly Kenny Jones’s drums had a new dynamic and cymbal and snare drums, deep in the mix, would magically appear.

I must have got through 20 or 30 well-loved LPs and was bowled over by the new level of detail I was hearing. I’m close to thinking that the Solaris pre works better with my vinyl rig than my current solid state pre and that’s quite a statement.

There is one criticism, and it’s not audio based really…..the remote is truly awful. It’s basically a clicker you get with electric garage doors, button A for down, button B for up. It’s clunky, noisy and the steps are too big. I’m amazed that a company who spends so much time and effort on aesthetics would supply, possibly as an afterthought , such an awful remote.

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I’ve been living with the Solaris for a week or so now and I am loving its detail, soundstage,  and just sheer musicality. You start off listening to the HiFi but very quickly get drawn in and are soon just loving the music. This is an excellent and very well featured amplifier. It sounds and looks marvellous.
I’m extremely impressed by this valve amplifier and if Elite Audio were to ask me to try a standalone pre, I’d be very very happy !


AVreport.ru_Test_Solaris


 

MOD 1 – 2020 for SOLARIS / PRE GAIN SELECTION …
we have expanded the SOLARIS GAIN range – by 2 additional positions to a total of 4 variants. You know OTL and plus 15 dB for STAX level, added a reduction to – 10 and – 15 dB to lower the overall volume and the noise of the back ground.
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SOLARIS MOD – 1 – 2020 ( PRE GAIN SELECTION )

What is the purpose of this modification? Implementation of a technical supplement (MOD) for the purpose of lowering the basic amplification of the amplifier with the result of a better adaptation of very low-impedance headphones to use and enjoy in OTL mode. Reason: It has been shown in the past that despite mismatching of very low-impedance headphones, OTL mode is often used, despite the restrictions of an audible carpet of noise and a very restricted adjustability of the volume. So far we have always advised against this so as not to overload the tubes. But it does not harm the tubes and does not shorten their lifespan. In order to enjoy OTL even on very low-impedance headphones, it is necessary to reduce the GAIN of the amplifier, also so that a good setting range on the volume potentiometer is possible, especially the background noise that the amplifier produces itself. The present MOD should take this into account and the enjoyment o.a. Make headphones available in OTL without any restrictions. In the versions from 2020, the GAIN switch on the SOLARIS will therefore be expanded by 2 further switch positions to the left, with which the GAIN can be reduced, gradually to 50% or 25% of the standard OTL gain.
So we have now complied with this user request and expanded the GAIN setting by the rotary switch by 2 positions to the left. So far, the GAIN switch had only a 0 dB position (that was the 30-fold gain for standard OTL use) and turned to the right, a further increase in gain for STAX headphones by +12 dB (approx. 3 x as much).  The SOLARIS from 2020 then have this rotary switch with 2 further positions – a total of 4 positions – to take the wishes of the users into account in every conceivable way.
The GAIN is then set as follows:
rotated from left to right:
-15dB                  -10dB                     0dB (normal)                  + 10 dB,
or in other words, related to OTL:    25%      50%      100%       300%
The measure has already been tested on various products and is therefore ready to be launched on the market available now. Retrofitting is also possible – if necessary for a small reimbursement of expenses.
IMPORTANT:

The basic setting for listening to dynamic headphones is generally as follows:

MODE: OTL / GAIN: 0dB

if this is too loud for you because your connected headphones have a very low impedance – or because they are “high efficiency” headphones you can use the GAIN switch to lower the gain – but still have OTL, turn them to the left (1 x corresponds to -10dB) 2 x to the left corresponds to -15dB, you will see a green LED on the vertical circuit boards next to the tube – important information on both channels


SOLARIS – MOD 2- 2020

For the very loud listeners, there is a MOD to increase the power in OTL mode for low impedance and very low efficiency headphones. For example the SUSVARA from HIFI Mann. Its 60 Ohm impedance is already low – but the real problem is its poor efficiency. At 60 Ohm the Solaris in OTL – mode has about 3 Watt, as said in OTL – mode. Now the use of the Transformer – Mode ( STAX or IMP ) is recommended to optimize the matching and increase the power output. But as it is like that, everyone wants to hear in OTL – Mode.

And there only this special MOD. As a consequence, the power output can be increased up to 2 x 6 watts under the above mentioned conditions. The MOD is uncomplicated – but it requires a specialist – our help. How did we buy this increase in power ?

On the one hand, the quiescent current in the end tubes was increased and on the other hand, the screen grid voltage was raised. All this results in the amplifier getting warmer – the tubes and the power transformer, because the tubes are more stressed. The tubes themselves don’t mind, but you should only leave the amplifier switched on when you use it, otherwise you should switch it off when not in use.

 

Jan Sieveking, Chef  von HIFIMAN bei AudioValve auf den SDHT in Stuttgart …

 

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Manual

English user manual – click here


Programming remote control ..

Amplifier must be under mains voltage, please handle only with one hand on the green FB PCB. Other hand on the back.

Press the upper white button on the receiver until the upper LED flashes.
Then press right button on the transmitter – you hear a relay click, as a receipt.

The same with the lower button, but now press the left button on the transmitter – again click a relay as a receipt.

Now test whether the potentiometer turns left / right when pressing the transmitter buttons (left / right)
If the motor runs in the wrong direction, unplug the connector on the remote controller board, turn it 180 degrees, and plug it in again.


 

Forum Solaris

OEF Otwin Mass

 

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29 reviews for SOLARIS

5 star
95%
4 star
4%
3 star
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Showing 1 of 23 reviews (4 star). See all 23 reviews
  1. Ran Xiang

    I really admire Mr. Becker as kind gentle man. I have been using Hifiman Susvara, Stax limited300, Sennheiser IE 800, RHA CL2 with RME adi dac 2. Solaris has revolutionized Stax and IE 800. It made my Stax sounds best with warmth, and superb details; it give a every elastic lows and holographic soundstage to my IE 800.

    When using Susvara however, I found myself using Stax mode with high gain for less fatiguing lows and holographics. I found it works better with its 4 wires stock cable than with ALO reference 16, which is also copper and silver hybrid but with 16 wires. Idk if the large numbers of wires put too much challenge on its conductivity.

    Anyway, if you have IE800 and Stax L700 or limited 300 with upgraded pads, the Solaris will revolutionize these headphone and IEM with the superb synergy.

    More of my YouTube review of Solaris can be found here:

    https://youtu.be/jkaLeX1EC5Y
    https://youtu.be/T-_Ebq4jkak

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