Front of the
Convertible
2000
1.
Load Resistor Input (Combo only):
Guitar pickups have different output voltages. Using the
load resistor plugs supplied with your combo amp you can match your pickups to the amp's input.
Standard Electromagnetic pickups:
Convertible amps have 4.7 meg-ohm input impedance. Some players prefer using no load
resistor plug because they want the brightest sound possible and 4.7 is a good match with their
pickups. You should experiment with the two land plugs provided to find your favorite setup.
It is recommended that the input impedance of the amp be 10 to 20 times higher than the pick-up
output impedance to avoid excessive "loading."
Unique Design Pickups:
Low Impedance Pickups (Like Seymour Duncan Live Wires or other
actives.): To optimize signal to noise ratio, input impedance should be fairly low - typically 1K to
500K ohms. Try the 1Ok-330pf load resistor plug for great tone and low noise.
Piezo Transducers (Built Into Acoustic guitars):
To avoid loading down Piezo pickups, the
input impedance should be high. Most Players like the sound of these pickups using no load
resistor plug. Electromagnetic Acoustic Guitar Pickup: To get a warm round sound, many players
like using the 1 meg load resistor plug. It gives a smooth high end and quiets the signal.
2. Main Guitar Input:
using only one instrument, this is the only jack that is live.
3. Auxiliary Guitar Input:
Use this input for a second guitar or other instrument. This is a parallel
input to the Main Guitar Input so they will both play through the "0N" channel.
If you use the Auxiliary Input for a second instrument, the output volume from both instruments
will be reduced. You will have to increase the Master Volume control to compensate. Also, the
instrument that is plugged into the Auxiliary Input will have less volume than the instrument
plugged into the Main Input. If you need both instruments playing at their loudest volume, you can
plug them into a "Y" cord and run them both through the Main Guitar Input.
If you want to use one guitar playing through two amps, plug your guitar into the Main Guitar Input
and run a normal guitar cable from the Convertible 2000's Auxiliary Guitar Input to the main input
on your second amp.
4. Overdrive:
This control dictates the amount of preamp distortion and influences the volume
you want to add to your signal. The lowest setting gives the cleanest signal and lowest volume.
The highest setting gives the most distortion and highest volume.
Technically, it controls the gain level applied from Stage 2 to Stage 3 or the preamp.
Although the intensity of overdrive varies with the modules you use, the relative effect is
the same:
- Clockwise increases distortion
