[nastypoker]

A good second hand speaker amp + energizer has the best price/performance ratio among all possible Stax solutions.You need way more current than what 353X or others can offer to get the best out of your lambdas. Speaker amps & energizers can deliver abundant amount of current.(possibly with a 100W into 8 ohm amp you can get more power than Carbon to drive your headphones) Assuming you'll get a good linear vintage amp for a good price, you'll get much closer to audio nirvana than any other solutions for the price you'd pay for 727A. And Yes, putting a transformer at the end of the signal path has it's downsides, that's why I don't say it's the endgame solution.

Any advice on a speaker amp to drive a 007 through an SRD-7 pro? Is 60W RMS @ 8ohms per channel powerful enough?

 

[theweezle]

A good second hand speaker amp + energizer has the best price/performance ratio among all possible Stax solutions.You need way more current than what 353X or others can offer to get the best out of your lambdas. Speaker amps & energizers can deliver abundant amount of current.(possibly with a 100W into 8 ohm amp you can get more power than Carbon to drive your headphones) Assuming you'll get a good linear vintage amp for a good price, you'll get much closer to audio nirvana than any other solutions for the price you'd pay for 727A. And Yes, putting a transformer at the end of the signal path has it's downsides, that's why I don't say it's the endgame solution.

So the reason I ask is because I found 2 old stax amps. A 323A for $220 and 323S for $330, a 727A is still like $800 Used, a bit pricey for me....Especially when I can get a new 353x for less with warranty.

My plan was buy the 323S unless its not good enough... I live in Japan, so all of the non-stax energizers are pricey comparatively.

 

[elton7033]

So the reason I ask is because I found 2 old stax amps. A 323A for $220 and 323S for $330, a 727A is still like $800 Used, a bit pricey for me....Especially when I can get a new 353x for less with warranty.

My plan was buy the 323S unless its not good enough... I live in Japan, so all of the non-stax energizers are pricey comparatively.

try yahuoku or audiounion
https://www.audiounion.jp/ct/products/used/A8/A8J/-/page/1/new_enddate/0/

you cant beat 007t for 59800yen (570USD)
https://www.audiounion.jp/ct/detail/used/176446/

or 006tA for 43800yen?(410USD)
https://www.audiounion.jp/ct/detail/used/177074/

323S is around the same price but doesn't sound as good...at lease you are getting high end stuff, the L700 deserves a better amp than 323S

 

[theweezle]

try yahuoku or audiounion
https://www.audiounion.jp/ct/products/used/A8/A8J/-/page/1/new_enddate/0/

you cant beat 007t for 59800yen (570USD)
https://www.audiounion.jp/ct/detail/used/176446/

or 006tA for 43800yen?(410USD)
https://www.audiounion.jp/ct/detail/used/177074/

323S is around the same price but doesn't sound as good...at lease you are getting high end stuff, the L700 deserves a better amp than 323S

I actually have no problem with the 007t pricing. I had actually heard that the L700 was better on SS over tubes (and that 007 and 009 were better on tubes). Hence why that original list of amps was all SS.

 

[Tugbars]

Any advice on a speaker amp to drive a 007 through an SRD-7 pro? Is 60W RMS @ 8ohms per channel powerful enough?

I haven't done the calculations but based on an article I read in a DIY forums: Yes, 60W into 8ohms per channel is enough. You can get old Kenwood's L07-MII , Nakamichi Pa5 or Threshold S150 for 700$.(sometimes even less)

 

[nastypoker]

I haven't done the calculations but based on an article I read in a DIY forums: Yes, 60W into 8ohms per channel is enough. You can get old Kenwood's L07-MII , Nakamichi Pa5 or Threshold S150 for 700$.(sometimes even less)

Sorry yeah, you recommended those to me a few pages ago. I am looking for something a bit more modern with more features. Just trying to plan my whole hifi system layout and want to go in with just some basic specs that I need for the 007's and then I can work around that. 60W @ 8ohms is easy enough to work from and I will be looking for a class A or AB amplifier.

Thanks!

 

[chocolates]

go to can jam or any local meet try the O2 with anything like the T8000/WES/BHSE/Carbon and you might be surprise.

haha, if only... maybe when quarantine lets up next year

I know this is out of topic but is interesting that L700 second hand price is similar to SR007Mk2 in japan? And funny enough some L700Mk2 is cheaper than normal L700...I remember years ago the SR007Mk1 used to be affordable as well but now is similar to a the SR007A(2.9)...

i noticed that on ヤフオク - but i got my sr007mk1 relatively cheap from there (15000jpy shipped including the srm-007t i've been talking about). L700mk1 is quite expensive though for some reason.

 

[118900]

So.... I have heard a buzz like you talk about on my 252s and my 207 twice!
First when I moved to my last apt. I plugged my wall wart into my APC I had for my PC, and it went away. This is realistically the best solution if you have a noisy power line.
Eventually, I started getting a buzz on my 207s. I bought L700s to replace them and the buzzing went away. put the 207s back into the amp, and its there again. I think the phones just develop a buzz with several (10+) years of aging.

You can of course have buzzing from anything though (an amp cap drying out, dying dac, etc).
If youre having the same buzz across multiple amps, and multiple phones, then its most likely the DAC or wall power.


TLDR:
In your case, try plugging the energizer into an APC and a different DAC.

I spoke with spritzer who modified the amp and he is suggesting that it is probably interference from the mains cable running close to the analogue interconnects.

it’s not at all a problem as I can really only just barely hear it with no music playing but I was curious as to what was causing it.

 

[elton7033]

haha, if only... maybe when quarantine lets up next year


i noticed that on ヤフオク - but i got my sr007mk1 relatively cheap from there (15000jpy shipped including the srm-007t i've been talking about). L700mk1 is quite expensive though for some reason.

You mean 150000 yen right? (About 1500usd) I never saw any 007+amp sold for 15000yen which is about 150usd... I have been using yahoo auction for years now and looking at it daily.

A few years ago, when SR009 start to be widely available in Japan the price of second hand SR007 did drop to around 90000 yen which makes the 150000yen price seems reasonable, but now the second hand price of SR007 rise again at about 120k-160k depends on condition especially for the 007A and brown Mk1. Its always demand and supply problem, not to forget the SR009 used to be a 5000usd headphone when launch.

After all these years SR007 still have its hardcore fan like the SR-Omega even if they own the SR009/009S...

For me, SR009 make everything sounds so nice which is unrealistic in a senses and not that neutral with the treble although the 009S is even more artificial.

Those second hand STAX energizers are really hard to sell in japan anyway, since even big audio store like sound 110 are having a hard time on selling second hand amp.

 

[chocolates]

yes, sorry - missed a 0 there should be 150,000jpy after shipping: https://page.auctions.yahoo.co.jp/jp/auction/w428296608

honestly, turned out better than expected, and no longer killing my transformer after readjusting bias; i probably need to replace the caps though (the big 400v ones look a little domey)

 

[elton7033]

yes, sorry - missed a 0 there should be 150,000jpy after shipping: https://page.auctions.yahoo.co.jp/jp/auction/w428296608

honestly, turned out better than expected, and no longer killing my transformer after readjusting bias; i probably need to replace the caps though (the big 400v ones look a little domey)

oh this!! I remember seeing that , but seems like you need new earpads...

 

[Tugbars]

Sorry yeah, you recommended those to me a few pages ago. I am looking for something a bit more modern with more features. Just trying to plan my whole hifi system layout and want to go in with just some basic specs that I need for the 007's and then I can work around that. 60W @ 8ohms is easy enough to work from and I will be looking for a class A or AB amplifier.

Thanks!

To come close to the quality of those amps with modern equipment you should say goodbye to your 3k$ and more. 007 is very unforgiving about amplification and sounds extremely bad with bad equipment.

 

[nastypoker]

To come close to the quality of those amps with modern equipment you should say goodbye to your 3k$ and more. 007 is very unforgiving about amplification and sounds extremely bad with bad equipment.

I guess I just need to do some testing then! I will keep my eye out for one of your listed vintage amps and see what I can find. Here is my layout plan for my home setup.

 

[elton7033]

I guess I just need to do some testing then! I will keep my eye out for one of your listed vintage amps and see what I can find. Here is my layout plan for my home setup.

if you can afford the topping d90+a90 I am sure that you can afford a very good stax amp!

 

[nastypoker]

if you can afford the topping d90+a90 I am sure that you can afford a very good stax amp!

Everyone keeps saying that Stax amps are easily beaten by either speaker amps or magic boxes from Iceland. Either way, I need an amp for speakers as well so combining forces makes a bit of sense.