| 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
Marantz MA-22
Marantz MA-23
august 1988
may 1989
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.
page online since : march 2013
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