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The Front Panel:
1. POWER (not shown): This switch applies
AC voltage to the amplifier, and should always
be turned on first. The switch illuminates when
the AC power is on.
2. STANDBY (not shown): This switch acti-
vates the amplifier, and should always be turned
on last. The switch illuminates when the high
voltage power is passing through to the tubes.
NOTE:
When you first power up this
amplifier, leave the Standby switch OFF
for at least 20 seconds. This gives the
power tubes a chance to prepare them-
selves for action.
3. PRESENCE: Increase the level of upper har-
monics with this control. The presence control
allows a boost of up to 5dB at 10kHz.
4. EFFECTS LOOP PAD: This switch activates
a 12dB pad on the effects send signal and cor-
responding gain recovery on the return. In the
out position the signal is full strength which is
best suited for line level rack mountable effects.
With the switch depressed the signal is lower
which is best suited for foot pedal type effects.
5. EFFECTS LOOP SWITCH: This switch con-
trols the effects return signal of the effects loop.
The loop is only active when the switch is
pressed in. When a footswitch is used, this
switch is disabled. The adjacent yellow LED illu-
minates when the loop is in use.
6,7. REVERB 2, REVERB 1: Adjust the amount
of reverberation on each channel with these
controls: at the "0" position the signal is "dry"
(no reverb). As you rotate the control clockwise,
the amount of reverb increases.
Channel 2:
8. MASTER: Set the output signal level of
channel 2 with this control. At the "0" position
(full left) very little or no signal will be heard; as
you rotate the control clockwise (towards cen-
ter) the output level of channel 2 increases. Use
this control along with your guitar's volume and
the channel 2 gain control (#12) to produce a
wide variety of sounds.
9. LOW: Adjust the bottom end response with
this control. The low control covers a range of
15dB at 100Hz. This sets the amount of bass
heard (and felt) from the amp.
10. MID: Adjust the midrange response with this
control. The mid control covers a range of 13dB
at 500Hz. This controls the “voice” of your guitar.
11. HIGH: Adjust the high end response with
this control. The high control covers a range of
10dB at 10kHz. This controls the “bite” of your
guitar.
12. GAIN: Adjust the overdrive (distortion) level
with this control. With the control towards “0” (to
the left) the signal is relatively clean. As you
rotate the control clockwise the distortion
increases, along with the overall output level.
Rotate the control towards “10” and you’ll
increase the distortion even more.
13. CHANNEL SELECT: Switch between chan-
nels with this push-button switch. The adjacent
amber LED illuminates when channel 1 is
selected (switch in the out position), the red
LED illuminates when channel 2 is selected
(switch depressed). When a footswitch is used
for channel switching, this switch is disabled.
Channel 1:
14. LOW: Adjust the bottom end response with
this control. The low control covers a range of
16dB at 100Hz. This sets the amount of bass
heard (and felt) from the amp.
15. MID: Adjust the midrange response with this
control. The mid control covers a range of 20dB
at 300Hz. This controls the “voice” of your guitar.
16. HIGH: Adjust the high end response with
this control. The high control covers a range of
10dB at 10kHz. This controls the “bite” of your
guitar.
17. VOLUME: Set the output volume level of
channel 1 with this control.
18. INPUT: Connect your guitar or wireless
receiver into this standard 1/4" jack by means of
a shielded instrument cable.
4
INPUTVOLUMELOW MID HIGHGAIN
HIGHMIDLOWVOLUME
LEVEL
1
LEVEL
2
PRESENCE
POWER STANDBY
EFFECTS LOOP
EFFECTS LOOP
PAD (12dB)
AD (12dB)
CHANNEL
CHANNEL
SELECT
SELECT
EFFECTS LOOP
EFFECTS LOOP
ON
ON
OFF
OFF
2 1
O
-5 +5
O
-5 +5
O
-5 +5
O
-5 +5
O
-5 +5
O
-5 +5
CHANNEL 1CHANNEL 2REVERB
O
1
O
1
2
3
4
5
6
7
8
9
O
1
O
1
2
3
4
5
6
7
8
9
O
1
O
1
2
3
4
5
6
7
8
9
O
1
O
1
2
3
4
5
6
7
8
9
O
1
O
1
2
3
4
5
6
7
8
9
O
1
O
1
2
3
4
5
6
7
8
9
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BV-60H / BV-120H All Tube Guitar Amplifiers