3) Output Bias: This allows for specific biasing of your amplifier.
82 Warm: This setting will run your amplifier at about 22 watts clean (before clipping) which is
similar to an early 4 input AC30. What this means to you is that you'll have less clean headroom
and get a warmer sound at lower volume levels plus your tube life will be prolonged.
50 Hot: This setting will run your amplifier at about 33 watts clean (before clipping) which is
similar to a standard 6 input AC30. The tubes will be running hotter but you will have more clean
headroom.
4) Smoothing: This changes the values of the filter caps within your amplifier.
22µf Vintage: This setting is similar to vintage AC30s where your sound will be more open and
loose. You may experience slightly more "hum" when the amp is idling.
44µf Modern: As the name would suggest, this is going to act more closely to a modern AC30
such as the hand wired AC30HW. Your sound will be tighter and the amp will run quieter.
5) FX Loop: This is where you can hook up external processors such as rack or stompbox effects.
Level -10/+4 dB: If you run a rack processor through the FX Loop set the Level switch to +4. If
you run a stomp box effect set the level to -10.
NOTE: There is no rule set in stone for these levels. Please try both settings and use what works
best for you as every playing and effect situation will be different.
FX Send: Think of this as the "output" of the FX loop and will be connected to the input of your
effect(s).
FX Return: Think of this as the "input" of the effects loop and will be connected to the output of
your effect(s).
NOTE: Be sure to use shielded guitar cables only! NEVER use unshielded speaker cables.
FX Loop Bypass ON/OFF : This is a true bypass effects loop which means if this is set in the
"off" position, absolutely none of your original signal will be running through it until it's switched
"on".
6) Footswitch jack: This is where you connect the supplied VOX footswitch so you can turn the Reverb
and Tremolo on and off.
7) HT Fuse: This fuse protects your amp should a fault occur with the power. The most common reason
for this fuse to blow is when an output tube becomes faulty. The correct vale of the HT fuse is located on the
rear panel of the amplifier and should only be replaced with one of the same value.
8) Mains Input: This is where the supplied, detachable Mains (power) cord is connected. The specific
mains input voltage rating that your amplifier needs to run at is located on the rear panel of your amplifier.
Before making any connections or powering up the amplifier, make sure the correct voltage is set. If you
have any doubt, refer to your local VOX dealer.
9) Mains Fuse: This fuse provides an overall safety protection in the event your amplifier develops and
electrical fault. The correct value of the fuse is located on the rear panel of your amplifier and should only
be replaced with one of the same value.
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