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8. GAIN Control
This determines the sensitivity of the preamp. Increase the volume and
distortion by turning it clockwise or you can turn it anticlockwise for a qui-
eter, cleaner sound. The GAIN control should be used in conjunction with
the VOLUME to get the perfect balance between distortion and output
volume.
NOTE:
Because of the nature of the design of this amplier, it may take a few
minutes until the circuit becomes stable after the power is turned on.
Some noise might occur during this time but it soon disappears.
9. INPUT Jack
Plug your guitar in here!
REAR PANEL LAYOUT
16 ohm
EXTERNAL SP FX LOOP
SEND RETURN
12
4
3
1. EXTERNAL SP Jack
This speaker jack will mute (disconnect) the internal speaker and you can
hook up a 16 Ohm cabinet of your choice.
WARNING:
To ensure that your system works correctly, you must observe the follow-
ing points.
a) Don’t connect a speaker whose rated input capacity is less than 30 Watts.
The speaker may be destroyed if you ignore this caution—not recommended!
b) You must use a speaker cable to connect an external speaker. Don’t use a
shielded cable like the one you use to connect a guitar to an amp.
c) You must turn off the power before connecting the cable. Connecting the
cable while the power is turned on may damage your amp.
NOTE:
It is recommended that all audio cables, with the exception of the speaker
lead, used to connect to the AC30S1 are of a high quality, screened type.
These should not exceed 10 metres in length. Always use a non-screened
Vox approved speaker lead with the AC30S1 Amplier and external cabi-
nets.
2. FX LOOP SEND Jack
Connect this to the input of your effect. (NOTE: This is a series effects
loop.)
3. FX LOOP RETURN Jack
Connect this to the output of your effect.
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