Here for sale there is a lo of fantastic Sony MCI studio Eqs. they are actually mounted on a standard frame adapter so they could be mounted in NEVE consoles as they were before or in any DIY rack giving them psu. they went from a mlx 3000 sony consolle . this is what is written in the specs: MXBK-EQ32 Adds a switch to each of the four bands to change the "Q" from a wide range to a much narrower "bite". Each section can be switched separately, and the ranges, overlaps, and peakshelving functions are the same as the MXBK-EQ31. MXBK-EQ33. When complete control of the bandwidth of frequencies affected by a section is desired, the MXBK-EQ33 offers the flexibility of continuously adjustable "Q" from a "wide" .5 to a supertight 6.0. In addition, the overlap range of the upper sections has been greatly extended, and the low frequency section goes down all the way to a 20 Hz center. This type of extremely wide range full function equalizer is usually found only in rack mount versions. If your business is film or special effects, this is definitely the unit to consider. dimensions cm 16,5 x 2,8 x 15 deep the modules alone 27,5 x 4 mounted in the holder i have the schematics for help in wiring them.they sound fantastic!!! sold as it is formula due to necessity of being hardly handled by buyer. no returns