My old AKG K 340 sounds excellent thru the DV, but of course they are "H" as in historic.

You can see the yellow/green earth cable sticking out just close to the blue disc capacitors - the yellow/green goes from the mains earth input straight to that point. And that is the main earth point of this circuit, and everything is earthed to the earth pin on the mains socket. Yes it is a...

Still trying with some CAD programs :ksc75smile:. But that humming left channel was driving me sane :) So made a mod to stop at least the worst, so I could listen to my 336SE without having the left channel modulated by 50 Hz. I just cut the A/C heater connection to the left channel earth -...

Translated: "The 336 Se is no longer produced after the 336 C is now discontinued and currently only produces 339 units." Marilyn Monroe had a hit with "Google is a girls best friend" some years ago :)

Sorry about the delay, got the voltages, but got stuck trying to find a CAD program with tube symbols - found a few free CAD programs, but a bit steep learning curve. The output capacitors are the only thing that separates the B+ or drive voltage from your headphones, so a very important to...

Posting some inside pictures of the DV 336 SE. Nice build quality, very easy to repair. Quite like the Bottlehead Crack in circuit layout, but this is much beefier and have substantially bigger and better coupling capacitors, that's those big orange blobs. The Crack uses only a very small 160...

As an owner of AKG 340 since new, I have found that every piece of hifi equipment with a phone socket, is unsuitable for the AKG 340 phones. As an example, a CD player usually use a small IC, with an equally small power supply - not enough to power the AKG 340's. And, most, if not all...

In light of the problem of identifying the MUSES series OP Amps, one would wish, that NJR would set up an official e-bay store.   There are so much money to be earned by faking these IC´s, any cheap DIP8 would be the base.   I bought mine from .jp, hoping that the closeness to the source...

Are you people sure about buying MUSES from .cn?   They seem to me to be masters of copying and faking just about everything.   Or, is it just me....

Those contemplating to buy one of the New Japan Radio Co, Ltd MUSES IC´s, please note that the local price in Japan is about as follows.   MUSES 01    3500:- JPY   MUSES 02    3400:- JPY   MUSES 8920  480:- JPY   MUSES 8820  400:-  JPY   All in DIP8.   Thu some local Japanese forums...

After myself reading some of this thread, one wish that someone at Fostex would read it.   They produce one of the best orthodynamic drivers, but then, do not know how to properly implement them in a headphone.

Quote:  Amazing as it is, the old NE5532 is the most well known, and used opamp for sound reproduction.   There are not one human being on this planet, that have not heard music thru one of these devices....

Trying an optical cable from bluejeanscable.com, and really like the soundquality compared with coaxial.   The V-II is really sensitive to all kind of electrical noice, and it sounds like the BJC optical cable cleans up the sound a bit.   Just charged up an old car battery, optical +...

  Quote: As a V-II owner,I do not miss the low end.   I got really thundering deep notes out of my V-II, that is, with another PSU.   The bass from my JBL L7 really shakes the floorboards, and it is my first bitstream DAC, that I have not removed the output capacitors from the...

Nearly gave up on the V-II, but then the Commander 6 A PSU arrived.   The sound, with original PSU is not really hi end, just a reasonably unobtrusive sounding DAC. Bit mid-fi, not getting a "I am there" feeling of higher end DAC´s. Light sounding, and not too engaging.   All that...