The Stax Thread III
Mar 11, 2023 at 7:32 PM Post #23,431 of 25,496
the 007t is a great all-purpose amp. IMO a L300 + 007t combo is very hard to beat.

The newer generation silver faceplate 007t have fixed power voltage, so use step up/down transformer if necessary. It has more (unnecessary IMO) signal inputs. Amp circuit looks to be basically the same.

for some reason 007t auctions get bid up pretty high nowadays, I remembered they were more around $400~$500 on yahoo.jp auctions (then add $100 fees/shipping).


727 is also a great all-purpose chioce, but they don't show up as often.
https://page.auctions.yahoo.co.jp/jp/auction/h1080024580
In case you (or anyone else) might be interested, I've got my 007t up for sale:

https://www.head-fi.org/classifieds...with-extra-tubes-and-universal-voltage.42925/
 
Mar 11, 2023 at 9:11 PM Post #23,433 of 25,496
That is a very nice 007t.

I'd suggest maybe put a "117V" label to cover the 100v marking since it is already configured to the 117v setting?
It's fully adjustable, 110v, 117v, 230v, simply by adjusting the jumper. No need to cover it, the arrow indicates where the voltage is set.
 
Mar 11, 2023 at 10:01 PM Post #23,434 of 25,496
Hi folks,
I seem to have found a general/recent Stax thread here. My very simple question is can the vintage SRD6 energizer (plugged into an amplifier of course) power any of the modern Stax headphones(L300)? It is the 6 pin unit but it does power my 5 pin SR34 electret headset I've already discovered. I also have the SR5's. Thanks in advance!



L300 are very good phones, much better than the older series such as the 303 ( I have both; L300 wins hands down).

srd-6 is not good enough for the L300, even after solving the bias voltage problem. The little transformers inside are not the same as what is in a srd-7.
But, IMO the srd-7Pro is not resolving enough for the L300 either.

to realize the L300's potential I'd suggest pairing it with a 007t / 717 / 727.
 
Mar 12, 2023 at 2:52 PM Post #23,435 of 25,496
bought SRM-T1 + SR-007 used around 2008
never been impressed
sounds lifeless
what is a proper amp ?
As Padam mentioned the SR-007 Stax needs some good voltage to have it sound the way they should. I had been using an SRM-717 with good results (recommended by Birgir).

I now have had a Eksonic Aeras for some time now and my SR-007 mk1 sounds great. The Aeras even has some T2 dna 🧬 in its design. It really is a must listen to combo.

You’ll be smiling a lot with this set up.
 

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Mar 12, 2023 at 4:04 PM Post #23,437 of 25,496
Good question, right answer. That small low profile fan is thermostatically controlled to turn on when the temperature hits 90 degrees and turn it off when the temp drops below. It is made by Middle Atlantic who make pro racks and accessories, good quality, made in the USA.

The fan is called Compcool (for component cool). They are sold individually and also a three fan set with daisy chain connection to small wall PS.

I was running that T1 amp at a local meet demonstrating some new phone. Playing for hours straight, the amp barely got warm to the touch.

Great when you have a stuffed rack cramped for air. It cools by drawing the hot air out of the component. I will attach segments of the paperwork.

Please reach out if any questions.
 

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Mar 12, 2023 at 4:26 PM Post #23,438 of 25,496
I'm a sucker for compact audio gear (not really a fan of the huge, heavy devices that are common in high-end audio), and that Aeras looks wonderful. Clean, modern, small, and sleek. That's an amp that I would like to get someday.

I've also wondered for a while why active cooling with fans and such isn't more common in audio gear. I get the concern of background noise and vibration with fans, but given how much audiophile love exotic topologies, it could be a good place to use exotic cooling technology like Peltier coolers.
 
Mar 12, 2023 at 4:55 PM Post #23,439 of 25,496
I'm a sucker for compact audio gear (not really a fan of the huge, heavy devices that are common in high-end audio), and that Aeras looks wonderful. Clean, modern, small, and sleek. That's an amp that I would like to get someday.

I've also wondered for a while why active cooling with fans and such isn't more common in audio gear. I get the concern of background noise and vibration with fans, but given how much audiophile love exotic topologies, it could be a good place to use exotic cooling technology like Peltier coolers.
The compcool runs at 8 cfm and generates only 19 db, a mere whisper if you sit right next to it.
 
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Mar 12, 2023 at 11:36 PM Post #23,440 of 25,496
L300 are very good phones, much better than the older series such as the 303 ( I have both; L300 wins hands down).

srd-6 is not good enough for the L300, even after solving the bias voltage problem. The little transformers inside are not the same as what is in a srd-7.
But, IMO the srd-7Pro is not resolving enough for the L300 either.

to realize the L300's potential I'd suggest pairing it with a 007t / 717 / 727.
That's good to know about the L300. I actually love the sound of the SR5's but I'm in the market for new cans. My one complaint about the SR5's has always been the lack of much useful deep bass. But I wouldn't trade the clarity and speed they have for that. Adding L300s on the cheap would be fun but I guess not plugged into SRD6. It may be sacrilege in this thread but is there a dynamic or planar headphone that would compete with the Stax sound under $1k?
 
Mar 13, 2023 at 1:05 AM Post #23,442 of 25,496
Maybe a HiFiman HE6-SE, ~$500 from adorama. They were $400 earlier this year, I think the price has gone back up a bit since.

But they are very heavy phones.
Heavy is ok if they are comfortable. I'm a 7 3/4 head size. Thanks.
 
Mar 13, 2023 at 3:30 AM Post #23,443 of 25,496
Maybe a HiFiman HE6-SE, ~$500 from adorama. They were $400 earlier this year, I think the price has gone back up a bit since.

But they are very heavy phones.
Recently i bought an he6-se and sold after two weeks. I had two original he6 in the past. Imho it is an headphone near to electrostatic sound. Now i have the 009 in my house, i think he6 is a good solution without need to spend extra money in energizers
 
Mar 13, 2023 at 12:47 PM Post #23,444 of 25,496
Recently i bought an he6-se and sold after two weeks. I had two original he6 in the past. Imho it is an headphone near to electrostatic sound. Now i have the 009 in my house, i think he6 is a good solution without need to spend extra money in energizers
Thanks for the reco! Those might be a good match for the Topping L50 amp I just got.
 
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Mar 13, 2023 at 3:19 PM Post #23,445 of 25,496
... the Topping L50 ....

a speaker amp of some kind is probably more suitable for He6se. It needs quite a bit of juice to run.

again, the He6se's are very heavy phones. Your posture will change with extensive use. They are good as reference phones to put on every once in a while, not for "all day every day" use (unlike the L300)

IMO the "L300 + 007t/717/727" combo is a better overall solution and really not that much more....
 

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