O F F
A250K
A1M
CH-3
R&R SL/LD MultiGain PRE-AMPLIFIER. OVERVIEW
1-2
R&R SOUND AMPLIFICATION SL/LD MultiGain PRE-AMPLIFIER
MANUAL
The SL/LD MultiGain model 3-channel guitar preamp is designed with five 12AX7 tubes. It has a rack design (1 unit high) and
is convenient for use both in the studio and in concert activities, easy to use. It has a wide range of sound adjustment that
allows everyone to find their own unique sound.
џ all-tube sound path (5 tubes 12AX7) with the ability to use tubes from different manufacturers separately for clean and
overdrive sound;
џ 3 completely independent channels: CH-1 CLEAN (clean channel), CH-2 LEAD 1 (overdrive channel) and CH-3 LEAD 2
(drive channel). Channel switching is carried out both on the front panel and from the 2-button foot controller that comes
with the preamplifier;
џ FX LOOP tube effects loop with a choice of operating modes (serial or parallel), switching on / off separately for clean /
drive channels, control from a two-button foot controller, softening the sound of transistor and digital processing due to
the use of a 12AX7 lamp in the circuit;
џ A250K / A1M mode GAIN control for channel CH-3 (LEAD-2). The A250K has a more punchy sound with more pronounced
low frequencies. A1M has balanced high and low frequencies;
џ connecting to the instrument input of a guitar amplifier (as an effects pedal), to the RETURN of a guitar amplifier, or to a
final power amplifier (as a preamp);
џ built-in speaker simulator for line connection and recording devices;
џ dedicated headphone output.
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