This is a used A Designs EM-EQ2 analogue equaliser.
The A-Designs Audio EM-EQ2 is the answer for those who want the stellar sound of a Pultec equalizer plus the added benefit of modern performance and reliability. The EM-EQ2 faithfully preserves the EQ section design, control layout, and wonderfully smooth musicality of the original Pultec. It also has the same frequency settings and inductors that made the Pultec a must-have for accurately capturing and shaping the sound spectrum, especially the bottom end. The high band is attenuated at 5k, 10k, 20kHz; bandwidth and boost can be varied mid to high band at 3k, 4k, 5k, 6k, 10k, 12k, 16kHz; and, of course, the low band can be boosted and/or attenuated at 20Hz, 30Hz, 60Hz, or 100Hz. Boost and attenuation can be adjusted from 0dB to ±10dB.
This A Designs EM-EQ2 is in excellent condition.