The Technical Stuff
__________________________________________________________
- 25 -
Block Diagram
As shown in the illustration above, each channel’s input transformer provides isolation and impedance
matching. After this, the signal is fed into both the side-chain circuit and the gain reduction circuit.
The side-chain is comprised of a voltage amplifier, a pre-emphasis filter, and a driver stage which
provides the voltage necessary to drive the electro-luminescent panel. This signal controls the gain of
the compressor. After the gain reduction circuit, the signal is sent through an output Gain control and
a two-stage output amplifier, followed by the output transformer.
