The Stax Thread III
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padam

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What is the problem by using a SRM-T1 with a SR-009 ?
Nothing specifically, but personally I would consider stepping up to at least the SRM-717 or modified SRM-727

The headphones have the capability to present an immense amount of dynamics, and I felt a better sense of that with those (and I guess it can be taken quite a bit further still)
 
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cat6man

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it's been a while since i've checked in on this thread but my 009 have developed a problem and 1000+ pages is a bit much to sift through again :)

my left channel has a buzz/hum that sometimes goes away if i tap it. also, tapping the left channel causes static which does not happen when tapping the right channel.

can someone tell me the recommended method/address for getting 009 repaired?

thanks
 
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padam

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it's been a while since i've checked in on this thread but my 009s have developed a problem and 1000+ pages is a bit much to sift through again :)

my left channel has a buzz/hum that sometimes goes away if i tap it. also, tapping the left channel causes static which does not happen when tapping the right channel.

can someone tell me the recommended method/address for getting 009s repaired?

thanks
There is a separate thread dedicated to these issues:

https://www.head-fi.org/threads/stax-sr-009-channel-imbalance-trouble-driver-problem.555908/

I think it may need to be repaired by Stax, replacing both transducers as a permanent solution, unfortunately this is only free if it is still covered by a warranty (and explains why a used pair without warranty - maybe bought via grey market - may worth quite a bit less to a pair, which was bought from the official distributor and still has it).
 
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cat6man

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thanks padam.
however, i don't have channel imbalance, most likely a bad cable connection.
and it is not currently under warranty, though i did buy it new (and not grey market)

i see a site for staxaudio.com in the US which is run by Woo Audio, but no indication if they do repairs, so
i guess it has to go back to Japan?
if i can live with the problem, i plan to be in Japan next summer.............
 
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padam

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If you check that thread, you will see that there is a facility in the US which deals with repairs.

I think what you have is dust or debris under the driver - although in that thread some claimed it was sitting on the outside dust cover itself (like a piece of hair or something), that would make it removable.
While you can try and push it towards your ears to make it go away temporarily, it will probably get back to a position where it will emit the buzzing again.

I did buy an SR-X which had the buzz on one side, I did this a few times and it never came back afterwards. But I did buy other vintage headphones, where it improved, but never went away permanently.

If it is the cable (which I don't think), I saw someone who shortened the cable on his SR-009 and documented the process, so it might be possible to do this with a skilled technician and not sending it in for a repair.
 
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headinclouds

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I have a Stax 717 and a KGSSHV Carbon and I am interested in getting a KGST and trying to get a bead on it's sound.

I have become increasingly sensitive to the 009, and why I still love it, I am starting to become sensitive to it's treble. Tried the 009S and found them a bit too dark for my liking, though they were fatigue free.

The Carbon is almost too good with my 009. It's a bass monster, though controlled - and dynamics are fantastic. Unfortunately, I believe this is what could be causing the fatigue. I listen to it compared to my 717, and the 717 is a touch warmer, but the tone of the 009 - for the most part - remains true which is the most important thing to me. Dynamics are reduced, as is bass heft - but it allows me to enjoy the 009 for longer; the tone is really the most important thing for me.

I'm considering a KGST and trying to get a bead on it's sound. If anyone has tried an 009 with the KGST and these two amps - can you give me an understanding of the differences?

My ultimate goal is to be able to listen to the 009 with any DAC I want - as the 009 can be so dramatically different with different DACs. Retaining the tone I hear with both amps mentioned, and reducing listening fatigue is most important to me. Is the KGST closer to the 717, the Carbon, or something else entirely? Do you believe it will accomplish my goal of a less fatiguing 009, regardless of DAC?

In terms of DACs, I like the Auralic Vega with my 009 better than the Yggdrasil. I had a Dave on loan - and ultimately want to put that in the chain, which I believe is not quite as bright as the Vega.



The KGST is a lovely amplifier and pairs very well with the original 009. (I haven't heard it with the 009S). I regard it as one of the best results for a very reasonable cost.
I am using the example of bonesyjonesy's Chord set up with KGST and 009. The precision and clarity of the Chord system and the brightness of the 009 combined well with the sweetness of the KGST. For me this was the most listenable system for the 009 apart from going up to a Blue Hawaii/GG
 
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What is the problem by using a SRM-T1 with a SR-009 ?
Nothing specifically, but personally I would consider stepping up to at least the SRM-717 or modified SRM-727

The headphones have the capability to present an immense amount of dynamics, and I felt a better sense of that with those (and I guess it can be taken quite a bit further still)
The main issues with the T1 are: 1) the use of resistor plate loads, 2) relatively puny output tubes and 3) unregulated power supply. The plate resistors waste a lot of signal current and cause the amp to sound relatively soft and lacking in bass "oomph." There really isn't much that can be done with the power supply other than substitution bigger PS caps within the T1's envelope (pretty much all the Stax amps have a passive power supply), but modifying the amp by replacing the resistor plate loads with good constant current loads will significantly improve its sonic shortcomings, and further improvement can likely be had by modifying it to take ECC99 tubes which will allow the output current to be cranked up somewhat, although this requires rewiring the tube sockets. Take a look at this thread from back in Jan and Feb for more discussion. A T1 with the constant current load mod is very similar to the amp circuit of a KGST discussed by @headinclouds above. The KGST has the advantages of more powerful output tubes and regulated power supply,

With the addition of electrolytic cap replacements due to age, I would consider the constant current modded T1 to be the same level as a 717 or global feedback modded 727, for lower cost.
 
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phaeton70

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I have a Stax 717 and a KGSSHV Carbon and I am interested in getting a KGST and trying to get a bead on it's sound.

I have become increasingly sensitive to the 009, and why I still love it, I am starting to become sensitive to it's treble. Tried the 009S and found them a bit too dark for my liking, though they were fatigue free.

The Carbon is almost too good with my 009. It's a bass monster, though controlled - and dynamics are fantastic. Unfortunately, I believe this is what could be causing the fatigue. I listen to it compared to my 717, and the 717 is a touch warmer, but the tone of the 009 - for the most part - remains true which is the most important thing to me. Dynamics are reduced, as is bass heft - but it allows me to enjoy the 009 for longer; the tone is really the most important thing for me.

I'm considering a KGST and trying to get a bead on it's sound. If anyone has tried an 009 with the KGST and these two amps - can you give me an understanding of the differences?

My ultimate goal is to be able to listen to the 009 with any DAC I want - as the 009 can be so dramatically different with different DACs. Retaining the tone I hear with both amps mentioned, and reducing listening fatigue is most important to me. Is the KGST closer to the 717, the Carbon, or something else entirely? Do you believe it will accomplish my goal of a less fatiguing 009, regardless of DAC?

In terms of DACs, I like the Auralic Vega with my 009 better than the Yggdrasil. I had a Dave on loan - and ultimately want to put that in the chain, which I believe is not quite as bright as the Vega.
why not move directly to the GG? compared face-to-face with the Carbon, the GG with the right tubes is much less fatiguing, still retaining the same impressive dynamics and transparency of the Carbon.
 
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Looking for thoughts on how the 009 or 009s sounds with the 006t energiser? Have the latter on the way with the SR-L700 but might upgrade to the 009 or 009s.
 
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I got D10 to replace my srs252/battery solution. I am waiting for my lectures listening to the sr007/2. This is really “formidable”. From all my preferred tools this one is “more equal” (animal farm). Really a pleasure to listen. Furthermore transportable and lighter than say lcd4 where you need something like hugo...
 
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I also tried the d10 with the 007mkA and drove it without problems, even though the 009s I just took is from another world.
The internal Dac works directly from an ipad and the quality is not bad, but if you can play with a Chord Hugo and a good cable, I use Audioquest, you will begin to have many doubts about desktop systems.
 
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People are not serious about Stax enough, not only the headphones itself, but the amplifier and then the DAC and the Source of transport :D. I have disappeared because I am loving my Stax rig too much! A little more than Too too much!

it's been a while since i've checked in on this thread but my 009s have developed a problem and 1000+ pages is a bit much to sift through again :)

my left channel has a buzz/hum that sometimes goes away if i tap it. also, tapping the left channel causes static which does not happen when tapping the right channel.

can someone tell me the recommended method/address for getting 009s repaired?

thanks
I am sorry to hear this, and this is 009S and not regular one ? I am lucky to have my 009S healthy out of the box.

I think Woo is on the unknown-unsafe list of thing as far as Stax direction is ? I could be wrong, but I think since last years Stax has officially announced that if any Stax headphones is damaged by 3rd party amp (unknown-unsafe), will not fall in the warranties conditions
 
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Of course Stax will say this about 3rd party energisers. Just as amp makers say don't use another make of Dac, and dac makers say only use their power supplies. Nothing wrong to make that clear but it doesn't mean all 3rd party stuff is dangerous to use. Just need to listen to the experts on here on their views on compatability and make your own decision, and understand the responsibilities.

Having your Stax amp tweaked with better capacitors, valves, etc., you are breaking your warranty, if someone other than Stax does the change.
 
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biscottino

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I think Woo is on the unknown-unsafe list of thing as far as Stax direction is ? I could be wrong, but I think since last years Stax has officially announced that if any Stax headphones is damaged by 3rd party amp (unknown-unsafe), will not fall in the warranties conditions
yes, I also knew this thing, but if you send the headphones from your distributor, surely provides to repair them, a pair of drivers is costing about € 1500
 
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Whitigir

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yes, I also knew this thing, but if you send the headphones from your distributor, surely provides to repair them, a pair of drivers is costing about € 1500
Whatttt ? Lol that is for 009S ? Woaaa.

Does that means you advices to call up your distributors or dealers and let them buy in that you are using it with Stax amp ? :wink:
 
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