5
Guided Tour - Model 2000 Front Panel
1. Passive Input jack - If your bass guitar has passive circuitry, connect it to the
Model 2000 here. This standard 1/4” unbalanced jack provides a high impedance
(100 k Ohms) input sensitivity of 20 millivolts.
2. Active Input jack - If your bass guitar has active circuitry,* connect it to the
Model 2000 here. This standard 1/4” unbalanced jack provides a high impedance
(100 k Ohms) input sensitivity of 60 millivolts.
3. Pre-Amp A (Tube) control - This determines the amount of preamplification
being provided by special circuitry which simulates the sound of a classic tube
amplifier (this circuitry actually includes a real tube!). Note that when both Pre-
Amp knobs are used at equal settings, the amplifier will be twice as loud as when
only one is used. Avoid setting both Pre-Amp knobs on maximum (“10”), since
the result will almost always be undesirable distortion.
4. Pre-Amp B (Solid State) control - This determines the amount of preamplifi-
cation being provided by special circuitry which simulates the sound of a solid
state amplifier. Note that when both Pre-Amp knobs are used at equal settings,
the amplifier will be twice as loud as when only one is used. Avoid setting both
Pre-Amp knobs on maximum (“10”), since the result will almost always be
undesirable distortion.
* Bass guitars that have active circuitry normally require a battery for the
circuitry to be functional.