Quad Eight 312C (Vintage) Racked Pair EQ Modules

Quad Eight 312C (Vintage) Racked Pair EQ Modules

Racked and serviced these mid 1970’s vintage discrete inductor based EQ.  28V external power supply.

Frequency Points:

• High Frequency (HF) Band: Selectable frequencies of 3 kHz, 5 kHz, 7.5 kHz, and 10 kHz. Includes a shelf/peak switch.
• Mid Frequency (MF) Band: Selectable frequencies of 400 Hz, 700 Hz, 1.5 kHz, and 3 kHz.
• Low Frequency (LF) Band: Selectable frequencies of 50 Hz, 140 Hz, 250 Hz, and 400 Hz.