The board contains the following:
Two separate stage each containing-
Electronically balanced Left and Right Inputs
Very accurate gain settings fixed on-board Electronically Balanced Sum & Difference Outputs
Full details are given for altering the Sum output
for 0dB or +3dB for 0dB Inputs on left of right.
A Standard Eurocard (160 x 100mm) with DIN41612
type B (32/64) edge connector.

Each board contains the following circuitry:
Two balanced or unbalanced 8 input Mix Amps
Both Mix Amps have electronically balanced outputs which may be unabalanced if required
Two line Drive Amplifiers with electronically balanced Inputs and Outputs. Provision for mounting of LL5402 transformers if required.
Line Amps have gain trim on board of +/- 10dB
A Standard Eurocard (160 x 100mm) with DIN41612 type C (32/64) edge connector.