This is a well-looked-after SSL Ultra Violet Stereo EQ (UVEQ) – 500 Series module. C/w – All original packaging, box and fixing screws. LF Shelf EQ: +/- 9dB Gain at 30, 50, 70, 90Hz. HF Shelf EQ: +/- 9dB Gain at 8k, 12k, 16k and 20kHz. HMF Parametric EQ: +/- 9dB (focus mode 18dB) Gain 400Hz-9kHz. LMF Parametric EQ: +/- 9dB (focus mode 18dB) Gain 100Hz-1.1kHz. Switchable HPF: OFF, 30, 40, 50Hz. Gain Trim: +/- 12dB.