RHYTHM PRE & POST GAIN (4 & 10):
The Rhythm Channel Pre (4) and Post (10) Gain operate in the same manner as the Lead Channel Gain controls.
For most applications, the Rhythm Channel should he set up with the Pre Gain at the lower "cleaner" settings
(
0
_
4
) and the Post Gain should be set for overall volume. The Rhythm Channel can be converted to a second
"lead" channel by activating the Crunch switch (6).
BRIGHT SWITCH (5):
Activates a preset boost in the treble frequencies (6 dB at 2 kHz) and affects only the rhythm channel.
CRUNCH SELECT SWITCH (6):
Boosts the gain of the rhythm channel to create a second "lead" channel. Depress to the "in" position to activate.
LEAD PRE & POST GAIN (7 & 11):
The Lead Channel Pie Gain (7) controls the input level and works with the Lead Channel Post Gain (11) to
determine the overall volume/overdrive of the lead channel. Lower settings of the Pre Gain control produce a
relatively clean undistorted sound while the middle to high settings produce harmonically rich distortion and
screaming overdrive/sustain. Since both Pre and Post Gain controls work in "combo," a basic rule of thumb setup
procedure is to begin with both controls in the lower settings (0-2). Using the Pre Gain control, dial in the amount
of overdrive/sustain you want for the lead channel. Then, using Ihc Post Gain control, adjust for overall volume.
EQUALIZATION (8):
The 5150,212 Combo's equalization block features passive low, mid, and high EQ that is custom tailored to
Edward Van Halen's sound.
REVERB (9):
Reverberation is an echo effect. Rotate the control clockwise to increase the effect. The Remote Footswitch can
control On/Off. Press the button on the remote switch labeled Reverb. The green LED will illuminate indicating
that the reverb has been activated.
RESONANCE / PRESENCE (12 & 13):
Unique to the. 5150 212 Combo, the Resonance control (12) can be set to boost the gain of the power amp in the
low frequencies at the resonance/attenuation point of the speaker cabinet. In simple terms, the Resonance control
works like a low EQ to offset low-end frequency drop out. The Presence control (13) works in the same manner,
boosting the high frequencies. Experimentation using your particular speaker cabinet, along with personal taste,
will determine your setting for these important controls.
POWER SWITCH (14):
Supplies power to the unit. Depressed to the "on" position, the power LED indicator light will illuminate next to
the power switch when power is being supplied to the unit.
STANDBY SWITCH (15):
Allows the 5150 212 Combo to be placed in a non-opcrational standby mode. When the standby switch is acti¬
vated, the tubes remain hot and ready for instantaneous operation, eliminating warm-up time. The standby LED
indicator light will illuminate when the amp is in the operational mode.
FUSE (16):
A
A
WARNING: THE FUSE SHOULD ONLY BE REPLACED WHEN THE POWER CORD
HAS BEEN DISCONNECTED FROM ITS POWER SOURCE.
A 3 amp fuse is located within the cap of the fuse holder. It must be replaced with the same type
and value in order to avoid damage to the equipment and to prevent voiding the warranty. If the
amp repeatedly blows fuses, it should be taken to a qualified service center for repair.