TR600.DIN/M - Kit with insulating audio transformer 1 line.

TR600.DIN/S - Kit with insulating audio transformer 2 lines.

T43D12 - Audio transformer, 80 Ohm and 100V 12-6-3W

T43D24 - Audio transformer, 80 Ohm and 100V 24-12-6W

DATS - Buffer for 12 Vpp active lines, 2 balanced inputs 1 V rms, 2 outputs 12 Vpp.

DATM - Buffer 1 V rms to 12 Vpp with insulating transformer

ST503 - 3 W, 24 Vdc, standard active amplifier board.

ST503AUX - Amplifier card 3W/8 ohm, 1V input sensitivity, 24Vdc

ST530 - Amplifier card 30 W, 24 Vdc, for 6-8 ohm impedance speakers

ST530AUX - Amplifier card 30 W / 6 ohm, 1 V input sensitivity, 24 Vdc