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Remember when I only had one electrostatic loudspeaker? Well, now there are two. My friend spray painted both sides of the stators on the second one to prevent shorting to an even greater degree than seen in the first one. Now, I have stereo sound with these ESL babies. Bass, once again, is surprisingly present, even with electronic equalization off. Shorting is far less frequent now too, since I carpet-bombed the space between the MDF frames with hot glue (about 30-35 sticks of 4" hot glue). I'm going to take these home once I build my own 1.5kV power supply, since the school won't let me take home their 1500 dollar 5kV power supply.
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Home: Audigy 2 ZS ---> PIMETA (Class-A Biased, AD8620AR, TREAD Regulator, Custom-built Discrete Diamond Buffer boards on L/R from PPAv2) ---> Grado SR-225
USAFA: Audigy 4 (roommate's computer) ---> DIY GB-150D-based integrated amp (stereo configuration, remote-controlled, power-on delay for output, and heavily class-A biased (3.9mA/channel) LM4562NAs used in preamp section) ---> Yamaha NS-527 (modified with Vifa 6 1/2" woofers, Panasonic film caps in crossover, and heftier internal wiring)
Ghey-C'97 (my piece-o-crap issued laptop) ---> PPAv2 (class-A biased AD8620 (2.5mA/channel), 8600uF pre-regulator, LM338 high-current regulator, 40mA/channel output bias) ---> Grado SR-225 (yes, I bring my headphones home from the Academy during leave)
Remember when I only had one electrostatic loudspeaker? Well, now there are two. My friend spray painted both sides of the stators on the second one to prevent shorting to an even greater degree than seen in the first one. Now, I have stereo sound with these ESL babies. Bass, once again, is surprisingly present, even with electronic equalization off. Shorting is far less frequent now too, since I carpet-bombed the space between the MDF frames with hot glue (about 30-35 sticks of 4" hot glue). I'm going to take these home once I build my own 1.5kV power supply, since the school won't let me take home their 1500 dollar 5kV power supply.
Have detailed the construction on the forum or away on internet?
I think I listed how they were built a little back in this thread. We have to keep track of everything we did in our "log" for that class, so it's also documented in paper. A few websites also helped in the construction.
__________________
Home: Audigy 2 ZS ---> PIMETA (Class-A Biased, AD8620AR, TREAD Regulator, Custom-built Discrete Diamond Buffer boards on L/R from PPAv2) ---> Grado SR-225
USAFA: Audigy 4 (roommate's computer) ---> DIY GB-150D-based integrated amp (stereo configuration, remote-controlled, power-on delay for output, and heavily class-A biased (3.9mA/channel) LM4562NAs used in preamp section) ---> Yamaha NS-527 (modified with Vifa 6 1/2" woofers, Panasonic film caps in crossover, and heftier internal wiring)
Ghey-C'97 (my piece-o-crap issued laptop) ---> PPAv2 (class-A biased AD8620 (2.5mA/channel), 8600uF pre-regulator, LM338 high-current regulator, 40mA/channel output bias) ---> Grado SR-225 (yes, I bring my headphones home from the Academy during leave)
Hey MisterX, what is that input jack you used? Do you remember the model number? I've seen it a couple of times and I like the look of it. Can you get it from Digi-Key?
Remember when I only had one electrostatic loudspeaker? Well, now there are two. My friend spray painted both sides of the stators on the second one to prevent shorting to an even greater degree than seen in the first one. Now, I have stereo sound with these ESL babies. Bass, once again, is surprisingly present, even with electronic equalization off. Shorting is far less frequent now too, since I carpet-bombed the space between the MDF frames with hot glue (about 30-35 sticks of 4" hot glue). I'm going to take these home once I build my own 1.5kV power supply, since the school won't let me take home their 1500 dollar 5kV power supply.
if you need a cheap HV supply you could always use the powersupply out of a helium neon laser, depeding on how much current you need... most of the ones I have around here are around 2150v... plus they are small and sealed, and most either take 120v ac or 12v dc
Hmmm... Hey! Thanks for the heads up! I'm definitely going to look around for those now. Just out of curiousity though, do you have any supplies higher than 2150V?
__________________
Home: Audigy 2 ZS ---> PIMETA (Class-A Biased, AD8620AR, TREAD Regulator, Custom-built Discrete Diamond Buffer boards on L/R from PPAv2) ---> Grado SR-225
USAFA: Audigy 4 (roommate's computer) ---> DIY GB-150D-based integrated amp (stereo configuration, remote-controlled, power-on delay for output, and heavily class-A biased (3.9mA/channel) LM4562NAs used in preamp section) ---> Yamaha NS-527 (modified with Vifa 6 1/2" woofers, Panasonic film caps in crossover, and heftier internal wiring)
Ghey-C'97 (my piece-o-crap issued laptop) ---> PPAv2 (class-A biased AD8620 (2.5mA/channel), 8600uF pre-regulator, LM338 high-current regulator, 40mA/channel output bias) ---> Grado SR-225 (yes, I bring my headphones home from the Academy during leave)
Linear Mode
