Front Panel Controls And Their Functions - Fuchs Audio Technology ODS-30 Operation Manual

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Front Panel Controls and Their Functions

Input Jack(s):
Input jack(s), are 1/4" phone plugs, designed for 1-Meg impedance, guitar-level
signal. This input will readily accept pedals/effects without any loss in performance.
The design of the ODS amplifier is quite flexible, so we first suggest exploring its
performance without any effects or pedals initially.
Gain Control:
The gain control sets the input gain for the primary clean preamplifier. The clean
channel acts as a preamplifier alone, during clean (non-overdrive) operation. When
the amplifier is in overdrive mode, the clean channel functions as a preamp to the
overdrive stage. All controls on the primary channel remain operational during
overdrive, allowing the overdrive tone to be controlled.
Brite Switch:
The Brite switch operates on the gain control/and is active over about ½ of the input
gain control range. From '0' to about midway, it provides a boost to highs, and the
effect of the switch decreases beyond the halfway point on the gain control rotation.
Deep Switch:
The deep switch shifts the overall tonality of the amplifier, slightly increasing the low
frequencies. This is often useful for single-coil guitars, which sometimes need
a low-frequency boost.
Rock/Jazz Switch:
The Rock/Jazz switch alters the operation of the tone controls. The Rock position,
gives highest gain, as well as a more aggressive rock type equalization. In the jazz
setting, tone is a more neutral/smoother tone. All tone controls work in both
modes, however their range and depth of operation is changed.
High Control:
The High control serves 2 functions: (IN)-it adjusts high frequency spectrum. (OUT)
the High control engages the mid-boost. This shifts the range of the high control
downward, to include more midrange. All tone controls still operate, however the
tone will be fatter.
Mid Control:
The Mid control serves 2 functions: (IN) Acts to adjust mid frequencies. (OUT)
engages the gain boost. This bypasses all tone controls and allows greater overdrive
and gain, on both clean and overdrive modes. This can also fatten sound for Single
coil pickups.
Low Control:
This control adjust the low frequency spectrum of your ODS.
The Overdrive Controls (INPUT, OUTPUT
The overdrive stage, as mentioned above is fed from the clean preamplifier. Two
controls effect overdrive: You can increase this internal setting if desired The
Overdrive Input (Front panel) sets the amount of distortion content, by adjusting
the drive between the two overdrive stages. Overdrive Output acts to balance the
volume of the Overdrive channel with the clean channel.
ODSm 3/2005