| |
|
| QUAD 33 AMPLIFIER |
(All specifications are for either channel,
with or without the other channel operating) |
| Year of manufacture: |
1967 |
| Manufactured by: |
The Acoustical Manufacturing Company, St
Peter's Road, Huntingdon. Hunts. |
| Price when new
(in the UK): |
£55 |
| Mono/stereo: |
stereo |
| Power output &
distortion: |
70Hz |
0.03% |
 |
Any level up
to 28 watts 16
load
Any level up to 45 watts 8
load |
700Hz |
0.03% |
10kHz |
0.1% |
|
| Frequency response: |
-1dB (ref: 1kHz) at 30Hz and 35Hz into
8
-1dB (ref: 1kHz) at 20Hz and 35Hz into 8 |
| Output source
impedance: |
0.3 ohms in series with
2000µF and 6µH |
| Input level: |
0.5V rms for 30 watts into 16 |
| Input impedance: |
22K ohms in parallel
with 60pF |
| Hum and noise: |
-100dB below full output |
| Interchannel
crosstalk: |
30-10,000Hz better than
60dB. Input load 1K |
| Stability: |
unconditionally stable with any load |
| Dimensions: |
width 4¾" (120
mm); height 6¼" (159 mm); depth 12¾" (324 mm) plus
1¼" (38 mm) for connectors |
| Weight: |
18 lbs (8.2kg) |
| Power supply: |
100-125 or 200-250V 50-60Hz,
consumption 40-200 watts depending on signal load |
|
|
|
| QUAD 303 CONTROL UNIT |
|
| Price when new
(in the UK): |
£43. 00 |
| Distortion: |
All controls
level, 0.5Vrms output, with any input
|
0.02% |
 |
30-10,000Hz |
| Any control settings and any level within
overload ratings |
0.1% |
|
| Residual noise; |
0-30 phon weighting 15.7kHz
bandwidth, controls level or cancelled: -90dB |
| Frequency response (±5dB): |
30-20,000Hz - any input, any output RIAA
or flat as appropriate |
| Filters: |
5kHz, 7kHz and 10kHz
±5% |
| Interchannel balance: |
Within 1dB with volume control varied from
maximum to -45dB |
| Balance control
range: |
9dB either way |
| Crosstalk: |
replay/record better than 70dB 30Hz-10kHz,
interchannel better than 40dB 30Hz-10kHz |
| Inputs: |
Radio - source 20K
or less, 100K
load impedance, level 100mV - 2V
Tape - 40K,
400mV - 4V
Disc (Low output magnetic): 68K,
2mV - 40mV.
Disc (High output magnetic): 68K,
5.6mV - 120mV
Disc Ceramic): 100mV - 1.2V |
