headroom for all input signal levels.
The dual rail power supply in the DB-CL is built on its own
discrete circuit board to physically separate it from the audio
circuits. The power supply is over filtered two times to assure
exceptionally clean power for the signal circuitry. This power
supply provides 18Volts (+9V and -9V) to the compressor
circuit board to provide plenty of headroom for the signal. The
power supply was designed to provide separate power for all of
the side-chain control circuitry. This assures that any natural
electrical noise that the compressor side-chain control circuitry
generates will not bleed into the signal circuitry. I have not seen
this approach to power distribution in any of the other
manufacturer’s guitar effects. Is it overkill? Maybe…but I feel
that it is absolutely crucial to eliminate every bit of noise where
possible.
Frank E. Appleton (FEA)
Min-Max and Limit RATIOS:
Threshold set at
–25dB for all tests.
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