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...

  Thanks potkettleblack, Keeping an eye on the L700 reviews. I have Lambda Sigs, LNS, 207's and 507. Something may have to be sold for the L700's.

That's quite right, and why some of us Head Fi-ers do care about alternatives. Getting a BHSE, for example, in the UK is fantasy land, and we also want alternatives to the Stax amps. So what Eric65 is telling us about may be very useful for us Head Fi-ers across the pond. (Stax user since 1975).

If the Verto box is that good, it will need to be able to be used with other power amps using the speaker out connections. Like the Wee and the Stax SRD energisers. IMHO.

If the Lambda Signature's have a treble edge, I would suggest you also listen to some other DAC's at least. A tubed DAC should be providing a smooth and detailed sound. Never in a million years would I say that the Signatures have a treble edge, so something is 'not right' in your system IMHO...

Mike, Has your wife been making transatlantic calls to my wife? I mentioned making changes to my turntable and my wife referred to body parts, specifically 'a hiking boot to the family jewels'. Perhaps its a worldwide conspiracy to stop us buying new Stax stuff. It's even got Zolkis making his...

My power amp, a British made valve amp uses 4 x EL34 valves .........just like the T2 ........ perhaps that's why the SRD7 SB mk 2 I have sounds so good?

I'm with tdogzthmn on this.7-SB with a good power amp sounds as good, sometimes better, than a Stax amp like the T1. Pity I can't get a new 7-SB anywhere.

Just to correct this for anyone interested, the contact address is t2o@greenbee.net

Spotted this link on another site if anyone is interested. Hope this doesn't break any forum rules.   Don't know who the seller is.   Stax SR-3 & SRD-5 - Electrostatic ear speakers (headphones) dating from early 1970s with SRD-5 energiser, in excellent condition with original manual. Photos...

A really interesting test and result. Thank you for this post. It adds to our knowledge and that has to be good.

Quote: Yes, early 80's. They were popular - a relatively cheap way into electrostatic headphones - much better than most dynamic phones on the market at the time. I thought they sounded similar to the SR5's but I bow to your better memory DefQon.

Quote: NAD also did some electrostatics. Very similar to the Micro Seiki, and similar on sound to the Stax SR5's.  

Stax srd7SB Mk2 and Woo Wee can only 'pass on' the signal from the power amp (or speaker amp) that is driving them. The better the amp, ( and source) the better the sound. I think in an earlier post, someone was using one with a Cary tube amp - have to say that I'm not a fan of the Cary's. I...

Quote: I would suggest that the Lambda and SRD7 combo will work very well - if you get a good enough signal going into them - source and power amp. The quality of the source is the influence on the sound.