Elysia xfilter 500 B-Stock

B-Stock, Elysia xfilter 500, Stereo Equalizer, API 500 series format, 100% class-A topology, true stereo operation, high and low shelf filters, resonance high & low cut filters, two parametric mids with switchable Q, additional passive high-band, all stepped potentiometers (computer-selected), special low tolerance capacitors, ground layer shield. Frequency response: <10Hz-400kHz (-3dB). Noise floor: 20Hz-20kHz (-98dBu). Dynamic range: 20Hz-22kHz, 120dB. Maximum level in/out: +21dBu. Impedance: 10k Ohms in, 68 Ohms out. Includes xfilter 500 module (without frame)., B-Stock with full warranty, may have slight traces of use ...