©2011
WOO
AUDIO
tm
Inc.
All
rights
reserved.
www.wooaudio.com
Rev
1.0.
June
9,
2011.
12
FAQ - Frequently Asked Questions
Can I plug in 2 or more headphones at the same time?
Yes, there is no harm to the amp. However, sound quality may be degraded.
Do I have to use the correct impedance setting for my headphone?
No, you can use any setting for any headphone as long as you feel it sounds the best for
you.
If I connect the WA22 with RCA interconnects, will the amp still provide a
balanced signal to the balanced output?
No, there is no RCA to Balanced conversion in this amp. A source with a true balanced
output will work the best with the WA22.
There is abnormal sound right after turning on the amplifier.
This is normal from a cold start as the tubes are warming up to get into the proper
working state. The noise will disappear gradually.
Can I change headphone while the amplifier is on?
Yes, but you must first minimize the volume.
No sound is coming out of the headphone.
o
Check that all tubes are properly installed.
o
Check that the source is properly installed and is working fine.
o
Check that the source switch is on the correct position.
o
Check headphone connection.
There is noticeable noise coming from the headphone.
o
Remove all sources from the amp to check if the noise disappears. If it does, the
noise is coming from the source.
o
Place the amp away from other electronic devices to check whether those were
causing the noise.
o
Place the amp in a different location to check if the noise is coming from the AC
line.
o
Remove all tubes, clean tube pins, and then reinstall them again.
o
Replace some or all tubes.
The sound is abnormal or distorted.
Replace tubes to see if they have deteriorated.
The LED and the tubes do not light.
Check if the fuse is burnt. See the Quick Installation section on how to replace a fuse.
