billerb1
Headphoneus Supremus
same tube as far as i know.
you can even add Western Electric 421A to that list as well
+1
same tube as far as i know.
you can even add Western Electric 421A to that list as well
Quote from another site (not my quote):
Thanks for that info, HeatFan, and I hope you're happy with the results of tonight's game!
I have my Wa2 in pre-amp mode to my airmotiv 6s w/ the bass set to -4db and the bass is still too over powering.
Any recondition on tubes to level the bass?
Not meaning to state the obvious, but have you already adjusted the EQ controls on the back of your airmotiv monitors? From the owner's manual:
Low-frequency Equalization
The Low-frequency Equalization control is intended mainly to compensate for the
“boundary effect” that increases bass output when a speaker is placed near one or
more surfaces or corners.
On the airmotiv, this control affects mainly frequencies below 150 Hz and offers a
maximum reduction of -2 dB or -4 dB at 20 Hz.
If you notice excessive or “muddy” bass, especially if your airmotiv monitors are placed
near large surfaces or room corners, try setting the Low-frequency Equalization to
-2 dB or -4 dB.
Anak,
No, that's definitely not normal. Sounds like a tube is a likely culprit. Do you have any alternate tubes you know are quiet so you can cycle through and figure out exactly what tube (assuming it is one) is causing the problem?
TS 5998
Siemens E88CC
Mullard EZ80
In a few recent posts in this thread (including one of mine), you'll see that for some users, while the Woo excels as a headphone amp, it doesn't always work well as a preamp. When I tried it as a preamp, I found the bass loose and wooly. I didn't do a lot of tube rolling to try to change the way the Woo sounds with speakers because it sounds so darned good with my headphones. That said, if you want to experiment, you might try a pair of RFT EZ80 in place of the Mullard rectifiers, though I'd anticipate that while this change might make a subtle difference, it won't necessarily clear up your bass problem. I haven't rolled enough 6DJ8 tubes to tell you whether there's an option that might offer lighter, tighter bass while still having all the virtues of your Siemens E88CC -- a tube I'd be reluctant to replace. And I wouldn't even think about changing out the TS 5998.
Maybe instead of changing out the tubes, since you have a killer combo in the amp now, try putting the speakers on some isolation cones, or loosely stuffing the port on the back with some batting or some material like this: http://www.amazon.com/WEB-WVENT-Vent-Register-Filters/dp/B000BWKMI2
Hope you can make it work!
In a few recent posts in this thread (including one of mine), you'll see that for some users, while the Woo excels as a headphone amp, it doesn't always work well as a preamp. When I tried it as a preamp, I found the bass loose and wooly. I didn't do a lot of tube rolling to try to change the way the Woo sounds with speakers because it sounds so darned good with my headphones. That said, if you want to experiment, you might try a pair of RFT EZ80 in place of the Mullard rectifiers, though I'd anticipate that while this change might make a subtle difference, it won't necessarily clear up your bass problem. I haven't rolled enough 6DJ8 tubes to tell you whether there's an option that might offer lighter, tighter bass while still having all the virtues of your Siemens E88CC -- a tube I'd be reluctant to replace. And I wouldn't even think about changing out the TS 5998.
Maybe instead of changing out the tubes, since you have a killer combo in the amp now, try putting the speakers on some isolation cones, or loosely stuffing the port on the back with some batting or some material like this: http://www.amazon.com/WEB-WVENT-Vent-Register-Filters/dp/B000BWKMI2
Hope you can make it work!