Marantz DMA-1

Marantz MA-22

Marantz MA-23

August
1 9 8 8 august 1988
May
1 9 8 9 may 1989
1 9 9 6 1996

Original monoblock of the Music Link series : the MA-7A came later.

The MA-22, shown here bellow, is the slightly later export version with the Music Link tag added by Philips NL but otherwise identical.

The MA-23 is the later version with redesigned switch and "blue star" surround (like on the SC-22 vs. SC-23), less distortion and, mostly, a better s/n ratio.

All three are Class A/B monoblocks with single parallel push-pull output stage, low-leakage toroidal trafo, copper-plated everything secured to a single piece diecast chassis, 8mm front, 3mm vented top, gold-plated terminals and... 50,000¥ less expensive than the MA-7A.




A nudie of an MA-22 here.

Marantz DMA-1, image 1 Marantz DMA-1, image 2 Marantz DMA-1, image 3
Marantz DMA-1 specifications
Title Value
[MA-23 alternate specs in white brackets] [MA-23 alternate specs in white brackets]
Power output : 1x 50W (8 Ohm, 20Hz...20Khz)
THD : 0,03% (rated power, 8 Ohm) [0,01%]
Frequency response : 10Hz...50Khz (-1dB)
Power bandwidth : 10Hz...30Khz (-3dB, rated power, 0,03% THD, 8 Ohm)
Damping factor : > 100 (1Khz)
Residual noise : < 0,1mV
S/N ratio : 100dB (A-weighted) [110dB]
Input : 1V / 47kOhm
PC : PC :
Dimensions : 25 x 8,5 x 21,5cm
Weight : 6kg.
List price : 125,000¥ (DMA-1)
7990FF (MA-22)
130,000¥ (MA-23)
Marantz DMA-1 : 0 topic
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