Model 450-Special Features; Lead/Bass Selector Switch; Special Output Circuit Configuration; Auxiliary Volume Control - Acoustic 450 Owner's Manual

LEAD/BASS SELECTOR SWITCH

1.
The LEAD/BASS switch located on the front panel allows the amplifier to be used as either a lead
guitar or a bass guitar amplifier. The amplifier in the LEAD switch position is a wide-band flat
amplifier. It reproduces fundamental tones plus harmonics. This is most desirable when playing a
lead guitar. When used in the BASS position, the harmonics are restricted. All harmonics beyond
1200 Hz are de-emphasized, a desirable characteristic when playing a bass guitar. The
LEAD/BASS selection is made in the output section of the circuit which makes the LEAD/BASS
conversion effective even when the amplifier is being overdriven or when it is used in the distort
mode.

SPECIAL OUTPUT CIRCUIT CONFIGURATION

2.
This provides constant power into the speaker, especially at low bass frequencies, to produce solid
bass characteristics and to augment the higher harmonic frequencies.

AUXILIARY VOLUME CONTROL

3.
This control allows you to pre-set two different volume levels and switch between them with the foot
switch.

USE OUTSIDE THE UNITED STATES

4.
If you wish to use your amplifier outside the United States, voltage selection can be made with slide
switches that are located inside the back of the amplifier. (You must remove the cover to make the
voltage selection.) The amplifier's various operating voltages are 107V, 120V, 210V, and 240V, all
at 50 or 60 Hz.
CAUTION: Even though the switches are clearly marked, it is suggested that your dealer's service
department make the adjustment.

MODEL 450-SPECIAL FEATURES

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P/N 410134