I'm considering recabling my Jade with silver wires.   Audiocat when you recabled JADE, did you replace the bias lines as well as signal lines? It appears that the bias line needs not to be changed since no signal is going through?   Thanks!   Quote:

Quote: Originally Posted by peeradonn Dear All, Now I'm Using my OIIMk1 and SR-Omega (Omega1) with my Rudistor Coriolan2. The sound was heaven for me, do you think I need to buy this Jade? I'm really interesting in but will it be substitute or compliment for the other two STAX...

Quote: Originally Posted by spritzer ... You can how ever connect the phones through caps directly to the tubes of some push-pull amps so no transformer is needed...... I hear from experts that electrostatic is inherently push-pull and using single-ended is not as desirable for...

Quote: Originally Posted by pabbi1 We had the opportunity to listen to the he1.2b, OII, he60 and koss 950 in Houston on a GES, a KGSS, and a BH, through an 840c and another equally adequate source, yet the he1.2b was trailing the pack This is interesting. Is there any post with...

Quote: Originally Posted by AudioCats 2 more questions: 1) between the Jade and the O2MK1, which one has more bass? (amount and depth) 2) which one is less-warm (ear temperature, not the sound signature)? 1)Ray had O2MK2 not MK1. From Ray Samules amp, O2 seemed to have less...

Quote: Originally Posted by powertoold I wonder how long immtbiker's Jade was burnt in prior to the ChiUniFi Meet. Perhaps a longer burn in may be needed to remove that high end "sparkle" someone was talking about. Fang told me 300 hrs, but immtbiker can correct me if I'm wrong.

Quote: Originally Posted by randytsuch Hi After all of this, can you compare your K1000's to the Jades. I feel that K1K in well constructed set-up SHOULD be in same level of performance as Jade in well thought-out, same level of set-up. My set-up is totally different from Ray's...

Quote: Originally Posted by Deadneddz I wonder if these things can be changed with source and amplification(tubes and such also). Ray showed that tube rolling on his prototype can make somewhat noticible improvements in sound for specific headphone, although it will likely not...

Quote: Originally Posted by derekbmn It's a 5 pin. Right. It has to be 5 pin, cause + - for each channels and bias...

I found that when bias is measured from transformer center tap to end of each diodes, 1: 90V, 2: 180V 3: 260V 4: 328V 5: 377V 6: 410V Clearly multiplied voltage is reducing. But when I measureed voltage across individual diodes themselves, they are all ~ 100V, so at the end of diode No 6...

Quote: Originally Posted by juzmister Does the Jade have a stax connector? The one that appeared at the meet was termiated with 4 pin neutrik connector and had an extra conver to stax pro connector.

Quote: Originally Posted by powertoold It's often very difficult to properly compare headphones because minor differences in volume can result in perceptive differences. I think there were some SL differences between phones, but at least between Jade and Sennheisers it was not...

Quote: Originally Posted by juzmister Great writeup...Did you guys hook the Jade up to any other amps? I don't know what was tried at the meet itself. At Ray's place, we only used his prototype.

May be some headfiers wants to hear more about this little electrostat event. So here goes what I experienced in some detail before the memory becomes blurred. It is my first time writing this type of stuff, so please pardon me if it turns out not so good. My primary goal attending this meet...

Some more zeners ordered. Quote: Originally Posted by spritzer You can how ever connect the phones through caps directly to the tubes of some push-pull amps so no transformer is needed. How good this will be is tough to say though... Would this idea work with things like...

It appears that it could be really interesting for those with good dynamic headphones too. Moth audio, Zana Duex and 307A, some of the better headphone amps for dynamic headphone.....

The ground is measured from the side of R105 = 910K which is connected to CT of transformers. The voltage are the same whether R105 is connected to transformer or not. I tried to desolder the bleeder resistor from the circuit, but it only increased the voltages by 2 volts. I can't find any...

I measured the voltage at the end of each diodes. 1: 90V, 2: 180V, 3 260V 4 328V 5 377V 6 410V. I understand there should be some drop in voltage as it multiplies, but they seem to drop too fast. Is this normal or was my part selection wrong? I used 100V zeners, metal poly caps and IN...

O.K. So I built the SRD-7MkII bias supply on perforated board. I have included all the parts that are within the perimeter of dash line in the schematics, except the thermistors and NL, which seems to be some light device. It seems to be working but the DC bias I'm measuring seems low.Only...

Quote: Originally Posted by Ray Samuels Those who will make it to my place will have the first hand listen to the A-10 as a pre-amp in a speaker system & also as an electrostatic amp with HE90 phones. Great !!! I was just wondering! Now if any one can bring in a Stax Omega II...

I will try to attend this meeting. I will try to bring the following. recabled SA5K. recabled K1000 Either DIY F1 or 845 SET DIY Squeez box based computer source Stax Lambda AT W1000 and Yamamoto that I will be putting up for sale soon. Hope to be able to hear some more electrostatics...

1500$ is a little high to me also, considering the unproven reliability and I should like the sound more than I would for O2 to get this. 30days guarantee would be good thing, but currently it is unclear to me what would be the amp would be bring out most of Jade. Planning to make DIY SRD-7 box...

Quote: Originally Posted by spritzer Measure before the resistor to get the correct reading. Is R104 then a bleeder resistor? If so, do I measure between before the resistor and either one end of the double zener diodes?

By the way, could any one let me know how I should be measuring the bias voltage? I think at some point Spritzer mentioned something about measuring at the socket is not right? Should I measure them with phone connected to the energizer? Thanks.

I didn't know this, but ZL01 - ZL04 is surge arrestor. Didn't know such thing exhisted. There are two for each channels in the schematic. If Pro socket of SRD-7 is protected against > 461V, can I just use 1 470V arrestor per channel? Digi-Key - 495-1478-ND (EPCOS Inc - L71-A470X)