spritzer

The input voltage could also be too low for the regulator.

The patent is the usual blowing of smoke involved with these things claiming they've done something which is unremarkable and 50 years out of date. Par for the course really.

No, Safewash 2000 but in a spray can which turns it into foam.

Minimum 18AWG for the heaters. Those current limits are free air and at serious loss. You don't want that in a 6.3V heater line. I used 1000V rated SPC wire that I twisted and then insulated all the pins on the plugs with 600V heatshrink. I hate doing this though which is why I'm trying my best to cram a Megatron into a single chassis... For the flux I use a foam cleaner from Elecrolube. Spray it on the boards and let it sit for a minute or two. Then brush them and then rinse under a running tap. Let them sit for a couple of days to dry.

I would just swap them out as the meter presents a load and then the zeners could be acting up.

The phones plus amp are actually 3.8K$ once the introductory pricing is over. That's a shitload of money for something that runs for just 7 hours.

That's what I did when I modified the board for my use.

They will but not by that much. Has to be the wrong zeners in there.

Pretty much...

Superglue for this is not a great idea. Polyurethane based glue is what most ESL manufacturers use as it bonds the two pieces properly together. Don't use graphite coating either, just get some LCD cleaning kit and spray the solution from there. Most work a treat.

Higher bias when loaded like that is normal on the SRA-10/12S.

They would have some big seals on either side of the drivers to keep the moisture out of them. That and a very well insulated cable and cable entry. I would also look into not doing a constant charge setup for a role like this even if it means slightly higher distortion figures. I also have my doubts about how they are dealing with the backwave.

They claim it took 3 years just to design the cable when it appears to be just a ribbon wound up in a circular shape. I guess Shure don't excel at project management...

The price is retarded and having Jude try and shill them is just sad. Well not for Jude as we all know he's a cunt but rather for Shure as they might have something good here. The amp has to be better than the POS KingSound are calling a portable amplifier... I do feel the sudden urge to make a super tiny KGSSHV and throw some batteries and a couple of DC to DC converters on it.

Easiest supply would be a HV DC-DC converter. Feed it up to 12V for a 1000V output. There are even 10KV versions and higher.

No problem using he 1156 if the 270V zeners are in place. If not then well it will go boom.

No, it should only affect the bass. There should be a drastic change so something isn't right.

The circuit is a 6 fold multiplier so limit the input to 100V (with a 5% error in the harmonic suppressor) and you are close enough. All Stax bias supplies would fall under the "close enough" realm. There is nothing regulated in any of the Stax amps except the SRM-300.

With a bit of glue they will fit just fine...

No, not really. I don't like doing it because it drifts a bit more but that's it.

The zener has to be 550V for 500V use and don't jumper that cap. The only thing that will do is connect the HV directly to ground. That isn't the best idea...

All of this is true and don't forget the small jumper marked B in the upper right hand corner. That needs to be connected. All in all this shows what a terrible idea it is to take over someone else's project.

Yup, do not power up that PSU. It will blow up quite horrifically...

Same as all other voltage multipliers. Extra parts to keep the circuit in inline but I'd prefer to have the extra transformer. Makes things a lot easier.

Just use a high ratio 230:12V and tap it off the secondaries of the stepup transformers. Then you can either put in a voltage doubler with a 115V back to back zener on the input or just run it directly like that.