QUAD 303 Power Amplifier Specification
The figures and curves refer to measurernents on either channel, with or without the other channel operating
| Power Output & Distortion:
(with unrestricted bandwidth)
70Hz 0.03% } Any level up to 28W 16 ohms load
-1dB (ref 1 kHz) @ 30Hz and 15kHz into 8 ohms
|Output Source Impedance:||0.3 ohms in series with 2000µF and 6µH|
|Input Level:||0.5V rms for 30 watts into 16 ohms|
|Input Impedance:||22K ohms in parallel with 60pF|
|Hum and Noise:||-l00dB below full output|
|Interchannel Crosstalk:||30-10,000 Hz better than 60dB. Input load I K ohms|
|Stability:||unconditionally stable with any load|
|Power Input:|| 100-125 or 200-250V 50-60 Hz.
40-200 watts depending on signal level.
|Weight:||l8 lb. (8.2Kg.)|
|Dimensions:|| Width 4.75" (l20mm.)
Height 6.25" (159mm.)
Depth l2.75" (324mm.)
(plus 1.25" (38mm.) for connectors
|Other Applications:|| The amplifer may be used for any purposes into load
impedances greater than 8 ohms. Below 8 ohms applications
should be restricted to music and speech reproduction or
intermittent sine- wave duty.