FRONT PANEL
The VT Bass 1969 is designed with
active
controls, which boost and cut, rather than
traditional passive controls which only cut. This effectively doubles many of the con-
trol’s capabilities, giving you a much larger range of adjustability and, ultimately,
more variety. It should be noted that you need not necessarily set everything at max
to achieve maximum results. As you experiment and become familiar with the interre-
lationship of the controls, you’ll easily be able to customize your own sounds.
Channel Selector Switch
Manually switches between channels when there’s no cable plugged into the rear
panel Footswitch jack. To remotely change channels, use the included Footswitch or
any standard passive footswitch. It will override the manual selector switch. (For
more information, refer to page 8.)
Gain
A 10dB gain boost to set up the pre-amp for different pickups.
For example, with lower output passive pickups, you can have
punchier sounds with Gain engaged. Conversely, with higher
output active pickups, you can have a cleaner sound with
Gain disengaged. Of course, you can also obtain over-the-top
distortion by using high output pickups with Gain engaged.
Input Jack
Faithful to the original designs of traditional tube amplifiers, this 1/4" Input is high
impedance 1M
Ω
. The typically additional low sensitivity input, however, is not needed
due to the Gain switch.
GUIDE TO CONTROLS
Drive
Adjusts the overall amount of gain and overdrive, similar to when the output section
of a tube amp is being pushed. The first half of the rotation will increase the volume
as well as the overdrive.
Bass, Mid and Treble
This powerful EQ section is like having a studio mixing board at your fingertips. Bass,
Mid and Treble are active tone controls that cut or boost ±12dB from unity gain at 12
o’clock. Bass is tuned to 125 Hz; Mid is tuned to 12dB @ 500 Hz; Treble frequency is
3.2 kHz.
5
Character
Sweeps through an entire range of tonal possibilities associated with the Ampeg
®
-
style family of amplifiers. In addition to modifying the frequency response, the
Character control also influences the attack and drive that are characteristic to this
particular amplifier style. Therefore, you may need to adjust your gain and tone set-
tings after tweaking the Character control.
Level
Acts as a master volume and is interactive with the Drive control. For clean sounds,
set Level at max and control the overall level with the Drive control. For dirty sounds,
use Drive to set up the overall amount of distortion and Level for the overall output.
REAR PANEL
FUSE
Replace with similar type and same value:
100 and 117V units use: F 6A L
230 and 240V units use: F 3.15A L
IMPORTANT REMINDER:
Fuse holder located inside A/C cord receptacle.
You
must disconnect and remove power cord to change fuse.
6
CHANNEL
GAIN
INPUT
TO REDUCE THE RISK OF ELECTRICAL SHOCK, DO
N
POUR REDUIRE LES RISQUES D'ELECTROCUTION
N