| Title | Value |
|---|---|
| Power output : | 2x 150W (8 Ohm, 20Hz...20Khz) |
| 2x 130W (4 Ohm, 20Hz...20Khz) | |
| THD : | 0,1% (8 Ohm, rated output) |
| 0,2% (4 Ohm, rated output) | |
| IMD : | 0,1% (8 Ohm, rated output) |
| 0,2% (4 Ohm, rated output) | |
| Damping factor : | > 50 (8 Ohm, 1Khz) |
| S/N ratio : | > 120dB (8 Ohm, input shorted) |
| Residual noise : | < 30µV (8 Ohm) |
| Power bandwidth : | 5Hz...80Khz |
| Frequency response : | DC...100Khz (+0 / -3dB) |
| Input : | 1,4V / 50kOhm |
| Output load : | 4...16 Ohm |
| Internal output impedance : | 0,05 Ohm |
| PC : | 230W |
| Dimensions : | 48 x 10,5 x 48,5cm |
| Weight : | 13kg. |
| List price : | 350,000¥ |
Sony TA-N901
june 1982
1987
The little ESPRIT : two simplified TA-N900 in one box. Or almost. Not quite.
In are a 20Khz PLPS, 4/8...16 Ohm back switch, non-magnetic & twin-monaural chassis, 2x 22,000µF main caps, high-speed diode rectifiers, stabilized and regulated power-supplies, thermally stable modules and "communicating" front display.
The latter displays a large blue pad at power on, turning green after stabilization, smaller orange or red pads when temp rises too much, then overload and or protection if things go haywire.
Circuit : current-mirror cascode bootstrap differential FET > bipolar inverting amp cascode bootstrap > SEPP emitter-follower with NFb to the first stage > Class A SEPP with triple p-p of Hi-fT and no NFb loop.
The N901 sold well enough but appreciation seems to have been mixed then and still is today : some find it having "not quite right" sonic qualities, some find it ok...
If you buy one, you'll be in for a full recap' anyway as the PLPS box gets hot and the caps inside age fast.
A real N901 here.
page online since : may 2012
page updated : not yet
page type : LGT / KNB
page weight : 138.78 Kb / 0 b
page updated : not yet
page type : LGT / KNB
page weight : 138.78 Kb / 0 b
- TVK Talk Forum
- TVK Museum
- Specials
- Timelines
- Utilities
- Games