Posts by spritzer

I agree, the SR-009 is in no way less demanding of amplifiers than its older sibling and indeed the SR-Omega too.  The sensitivity is up a bit but it's still a punishing load and you need plenty of current to keep the 009...

The design process is well underway but we keep coming up to the same problem, cost.  We really only care about performance and cost isn't even considered.  I for one never build using a BOM and buy everything in bulk so if...

Quote: Originally Posted by charliex    What differentiates the 'good' version from the 'not as good' version?   Power supply and operating point for the ECL86's.  There are three versions...

A Stax amp will always have to be balanced at the output regardless of the input so it makes sense to have a balanced input as well.  It's almost always cheaper to design an amp with a "free" balanced input (i.e. enough open loop...

I guess I'll have to step in now being the so called Don of this dark and twisted group of nerds...    The Stax Mafia name wasn't chosen by us but rather thought of by one rather annoying RSA shill back in the day.  His...

With the super high impedance of those boards you need a VTVM (vacuum tube voltage meter) to measure as the 10M input impedance of even the best DMM's is just far too low.  This overloads the voltage multiplier and you can't get...

With high ambient temp then the first things to go would be the electrolytic caps, especially the ones rated at only 85°C.     I just measured my KGSSHV which is in a pretty cramped chassis and the highest reading I got...

Quote: Originally Posted by Surge74  I just noticed on my brand new SR-009s that the black 'felt' material lining the inside of the headphones (covering the electrostatic grills) is loose.  It is not drawn...

Very nice indeed.    I was doing some inventory and I found 3 KGSSHV transformers so I guess I'll have to get cracking on some more amps.    First we need to finish these two new volksamp projects...

Once again Larry you have no idea what amplifier power really is.  What you are hearing is clipping which is the definition of lacking power.