I really stepped into headphone amps for the short term at least! When needing a temporary headphone amp while my Buggati amp was being repaired (Ok only really an SPL amp), I looked into all kinds of options, and ended up with a Whammy built by 6L6 himself. There, that's easy, so I bought it. I will give you the long version if you ask, but let's just say that I couldn't keep my hands out of it and ended up repairing my own stupidity. Fortunately, it turned out to be pretty simple. It was mostly the 2604BB IC, and to some degree the volume pot.
Now, let's get into the reason that it is for sale. Simply put, the SPL amp came back and though I can hear difference between the Whammy and the Phonitor, I am keeping the Phonitor. Thinks that's bad? I actually have yet another Whammy that is in waiting should anything ever happen again.
Only today, I listened to 4 different headphone amps in what turned to be not much of s shootout. The 2 Whammy amps sound pretty much alike which is great (one uses the 2604 chip and the other a 2134 chip).
Enough of this. Price is a simple $300 plus shipping. Please note, this do not have the output to be used as a preamp, though any decent DIYer could make that happen.
Now, let's get into the reason that it is for sale. Simply put, the SPL amp came back and though I can hear difference between the Whammy and the Phonitor, I am keeping the Phonitor. Thinks that's bad? I actually have yet another Whammy that is in waiting should anything ever happen again.
Only today, I listened to 4 different headphone amps in what turned to be not much of s shootout. The 2 Whammy amps sound pretty much alike which is great (one uses the 2604 chip and the other a 2134 chip).
Enough of this. Price is a simple $300 plus shipping. Please note, this do not have the output to be used as a preamp, though any decent DIYer could make that happen.
Attachments
I remembered a couple of mediocre things that should be added here. Before I discovered that the 2604 chip had issues, I replaced all 6 diodes with faster SF4007. No real effect of course, but just so you know. Then on the back of the unit, I added a power switch where there was none before. The 100K pot is padded by 20 Db because of the amount of gain that the amp has. Vishay 1% resistors were used to make a dividing circuit on the input. Works great. The optocouplers are now Motorola replacements. Again, for no good reason, but there they are. And lastly, I was inclined to use a different microphone Mogami cable that was easier for me to work with. Soft silicone feet were added when none existed before. Ok, that, and the fact that I damped the chassis and more with sticky backed damping sheet material all that I can come up with.