Equipamento em ótimo estado, funcionando normal.Fabricado pela Mdrigal, que fabrica os equipamentos Mark Levinson.Equipamento raro e extremamente especial.Enviamos ou retirada em nosso endereço no Morumbi,This is a monster of a preamp, able to create beautiful stereo sound, process your digital home theater needs, route audio and video every which way imaginable and so much more! More than I can concisely detail here in fact, but there is plenty of info available on the other end of a quick google search.Description: Full-function surround-sound audio/video preamplifier with Pro Logic, THX, and music modes. Frequency response and THD: not specified. S/N ratio (main outputs): >80dB at 0dB output. Gain: 14dB (nominal). Gain range: -60dB to +14dB. Gain resolution: 0.5dB except at lowest levels. Input overload: >2V RMS (0dB output). Input impedance: 100k ohms (single-ended). Output impedance: ±20 ohms. Maximum output: 10V RMS (balanced). Audio inputs: 2 balanced, 8 single-ended. Audio outputs: 1 set stereo main (L&R), balanced; 2 set stereo remote (balanced and unbalanced); 6 single-ended main (L, C, R, Sub, LSur, RSur); 4 sets record out (2 sets each VCR and tape). Video inputs: 4 composite video, 4 S-video (Y/C). Video outputs: 4 composite video, 4 S-video (Y/C).Dimensions: 17.25" W by 4.45" H by 13.27" D. Weight: 27 lbs (shipping).Serial numbers of samples reviewed: 1024, 1336.Price: $4195 (1994). Approximate number of dealers: 90.Manufacturer: Madrigal Audio Laboratories, Inc.,