PEQ500A is a full Pultec EQP-1A & EQP-1R type passive EQ circuit combined but with 8 extra low frequencies and 5 extra high frequencies. The BW (bandwidth) control for the high boost bell curve can go twice as wide as a normal Pultec and it can also do one thing I have never seen on any other Pultec or clone do. Pushing on the BW control will switch the high boost to a shelf with the BW control still varying the slope going into the shelf.
We can supply this EQ as a 51X version. If you want 51X version please mention this in the comments section when checking out.
The New A version has updated front panel graphics and uses expensive C0G caps for all audio caps for an extremely stable long-life EQ. Pairs of PEQ500A are shipped with hand-matched inductors, pots, and transformers for precision stereo matching. Features for each Channel
EQ In / out toggle switch with blue LED Electronic Balanced discrete opamp input to allow for large input levels. High Cut shelf from 0 to -16dB switchable to 5kHz, 10kHz, 20kHz. High Boost bell / shelf with variable BW / Slope from 0 to +16dB switchable 1kHz, 1k5kHz, 2kHz, 3kHz, 4kHz, 5kHz, 8kHz, 10kHz, 12kHz, 16kHz, 20kHz, 25kHz. Push on BW control switches from high boost bell to shelf with orange LED lit when in shelf mode Low Cut shelf from 0 to -16dB switchable 10Hz, 20Hz, 30Hz, 40Hz, 60Hz, 80Hz, 100Hz, 120Hz, 160Hz, 200Hz, 240Hz, 300Hz. Low Boost shelf from 0 to +16dB switchable 10Hz, 20Hz, 30Hz, 40Hz, 60Hz, 80Hz, 100Hz, 120Hz, 160Hz, 200Hz, 240Hz, 300Hz. Large JLM111PCB output transformer.