Description
Solid state stereo power amplifier.
Introduced
1978
Discontinued
?
Revisions
D-52B (1979)
Options
-
MSRP (US new retail)
D-52: $1,095
D-52B: $995. Later increased to $1,295. Later increased to $1,395.
Specifications
D-52B:
| Power output | 50 watts per channel minimum RMS (both channels operating) at 8 ohms from 1 Hz to 20 kHz with less than .25% total harmonic distortion. Typically less than .02% at rated power in midband. Approximate actual power available per channel at "clipping" (both ch. op.): 80 (4 ohms), 60 (8 ohms), 35 (16 ohms) |
|---|---|
| Power bandwidth | |
| Frequency response | 0.05 Hz to 100 Khz (-3 db) |
| Input sensitivity | 1.1 Volts RMS for rated power and load. |
| Input impedance | 30 Kohms (nominal). |
| Output taps | |
| Output regulation | |
| Overall negative feedback | |
| Damping factor | More than 500 at rated power and load (20 Hz to 20 kHz). (Effective internal impedance approximately .012 ohms.) |
| Distortion | Intermodulation distortion: Less than .1% at rated output (56.56 V p to p) and load (SMPTE method). THD and IMD both decrease with decreasing output. |
| Slew rate | |
| Rise time | |
| Hum & noise | Wide-band, unweighted, more than 90 dB below 50 watts at 8 ohms - power line components (hum) more than 80 dB below 50 watts at 8 ohms. |
| Power supply energy storage | |
| Power requirements | 105-120/210-240 VAC, 50/60 Hz, 600 watts maximum. 120 watts at idle. 300 watts at rated power. |
| Other | |
| Dimensions | 19" (48 cm) W x 5 ¼" (13 cm) H (standard rack mount panel size) x 10 ½ (26.7 cm) D (front panel back). Handles extend 1 ½" (3.8 cm) forward of the front panel. |
| Weight | 39 lbs. (17.7 kg) Net, 45 lbs. (20.5 kg) Shipping |
Reviews
Number 14
(D-52: Full Review), Number 15 (D-52B: Full Review)Pictures
D-52:
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D-52B:
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