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Details the specific model number and manufacturing date of the audio equipment.
Identifies the category of the audio device as a Stereo Preamplifier.
Specifies the range of audio frequencies the device can reproduce accurately.
Details the voltage levels required for optimal input signal reception.
Defines the electrical resistance presented to input sources.
Indicates the maximum input signal level before distortion occurs.
Specifies the standard and peak output voltage levels into a load.
Defines the output impedance for main, tape, and loop outputs.
Quantifies unwanted signal artifacts like THD, IMD, and noise levels.
Specifies the tolerance for the phono preamplifier's equalization curve.
Measures the isolation between left and right audio channels.
Defines the tolerance for the phase relationship of audio signals.
Details the operation and effect of bass and treble tone adjustments.
Provides the physical size and mass of the audio unit.
Frequency and Sensitivity| frequency response | 20Hz-50kHz, ±0.25dB |
|---|---|
| input sensitivity (high gain, moving coil) | 280μVrms @ 1kHz |
| input sensitivity (low gain, moving magnet) | 2.2mVrms @ 1kHz |
| input sensitivity (CD and VCR) | 360mVrms |
| input sensitivity (all other inputs) | 120mVrms |
Impedance| input impedance (high gain, moving coil) | 47Ω, 100Ω, 47kΩ |
|---|---|
| input impedance (low gain, moving magnet) | 47Ω, 100Ω, 47kΩ |
| input impedance (CD and VCR) | 20kΩ |
| input impedance (all other inputs) | 25kΩ |
| source impedance (main output) | 1kΩ |
| source impedance (tape output) | 2kΩ |
| source impedance (loop output) | 2kΩ |
Output| rated output | 1.5Vrms into 10kΩ or higher |
|---|---|
| maximum output | 20Vrms into 10kΩ or higher |
| tape output level | 120mV |
| loop output level | 105mV |
Distortion and Noise| distortion (phono inputs) | 0.01% 20Hz-20kHz |
|---|---|
| distortion (all others) | < 0.009% 20Hz-20kHz |
| distortion (rising to) | 0.08% at 15V @ 1kHz into 10kΩ or higher |
| noise (moving coil unweighted) | -55dB re rated input |
| noise (moving coil A weighted) | -68dB re rated input |
| noise (moving magnet) | -81dB re 10mV input |
| noise (moving magnet unweighted) | -68dB re rated input |
| noise (moving magnet A weighted) | -78dB re rated input |
| noise (all others unweighted) | -98dB re rated inputs |
| noise (all others A weighted) | -109dB re rated inputs |
Tone Control| bass | ±18dB at 30Hz |
|---|---|
| treble | ±14dB at 12kHz |
| RIAA accuracy | ±0.25dB |
| channel separation | 50dB 20Hz-20kHz |
| phase accuracy | ±3° 20Hz-20kHz |
Weight and Dimensions| width | 482mm (19.0") |
|---|---|
| height | 55mm (2.5") |
| depth | 347mm (13.6") |
| weight | 4.8kg (10.5lbs) |
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