Dual - MV 61 Solid state stereo amplifier





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Brand Dual MV 61, manufactured in 1972, in perfect physical condition and tested and functional.
Description from the seller
The MV61 is a multifunction auxiliary amplifier that can be integrated into existing systems as an alternative to a quadraphonic amplifier. For this purpose, the MV61 includes a matrix circuit and a stereo power amplifier that can be used to drive a rear pair of speakers from the signals obtained from the matrix circuit in order to achieve enhanced surround sound. Alternatively, the MV61 can be used as a pure power amplifier for the operation of a pair of stereo speakers, 2 × 20 watts, frequency response 20-30000 Hz ±0.5 dB, connection via DIN 41529 speaker plug (line-pair plug).
The multi-matrix method works (put simply) by subtracting the other channel from the left or right channel. As a result, the rear speakers mainly receive the left and right edges of the stereo image (especially in classic or live recordings, this is what is called reflected sound), which is an attempt to recreate the surround sound of the recording room. These circuits can be found in a somewhat simplified form in many double amplifiers, home systems and compact midrange systems from the 1970s. It is clear that this method does not approach the capabilities of “real” quadraphony, but it can be integrated relatively easily into a system and is directly compatible with all kinds of stereo media.
Manufacturer: Dual
Model: MV 61
Type: Quadraphonic auxiliary amplifier
Year of manufacture: 1972 (Germany)
Net weight: 3.5 kg
Dimensions (W × H × D): 200 × 108 × 335 mm
The MV61 is a multifunction auxiliary amplifier that can be integrated into existing systems as an alternative to a quadraphonic amplifier. For this purpose, the MV61 includes a matrix circuit and a stereo power amplifier that can be used to drive a rear pair of speakers from the signals obtained from the matrix circuit in order to achieve enhanced surround sound. Alternatively, the MV61 can be used as a pure power amplifier for the operation of a pair of stereo speakers, 2 × 20 watts, frequency response 20-30000 Hz ±0.5 dB, connection via DIN 41529 speaker plug (line-pair plug).
The multi-matrix method works (put simply) by subtracting the other channel from the left or right channel. As a result, the rear speakers mainly receive the left and right edges of the stereo image (especially in classic or live recordings, this is what is called reflected sound), which is an attempt to recreate the surround sound of the recording room. These circuits can be found in a somewhat simplified form in many double amplifiers, home systems and compact midrange systems from the 1970s. It is clear that this method does not approach the capabilities of “real” quadraphony, but it can be integrated relatively easily into a system and is directly compatible with all kinds of stereo media.
Manufacturer: Dual
Model: MV 61
Type: Quadraphonic auxiliary amplifier
Year of manufacture: 1972 (Germany)
Net weight: 3.5 kg
Dimensions (W × H × D): 200 × 108 × 335 mm

