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Hum And Noise; Specifications - Rotel RC-980BX Owner's Manual

Stereo control amplifier

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HUM AND NOISE
In any high fidelity installation, hum may be caused by the
interconnection of a turntable, tuner and amplifier, and speak¬
ers as the result of wiring, different grounding or locations of
components.
If hum is experienced with your unit, disconnect everything
but the speakers from the unit. Plug in the turntable and if
hum or howling appears, move the turntable away from the
speakers as much as possible.
Note hum may also be induced by defective cable connec¬
tions or by running the cables too close to strong AC field.
When your unit picks up noise during the reception of broad¬
casts, causes are mostly due to external objects such as
fluorescent lamps and house appliances using motor or
thermostat, or others that may induce the noise.
Either relocating the unit away from the noise sources or using
an improved outdoor antenna may readily solve the problem.
In the event you cannot find the cause, consult your dealer
or a qualified electrician.
SPECIFICATIONS
Total Harmonic Distortion . . . No more than 0.004%
(CD/TUNER. 20 to 20,000 Hz)
Intermoduration Distortion... No more than 0.004%
(60 Hz : 7 kHz = 4:1)
(CD/TUNER)
Output. Headphone 8-2 kohms
Input Sensitivity/Impedance
PHONO (MM). 2.5 mV/47 kohms
PHONO (MC). 250 nV/100 ohms
CD. TUNER. TAPE 1/2.... 150 mV/34 kohms
AUX. 150 mV/34 kohms
Output sensitivity/
Impedance. l.OV/IOOohms
Overload Level (THD 0.5%, 1 kHz)
PHONO (MM). 160 mV
PHONO (MC). 16 mV
CD, TUNER, TAPE 1/2.... 5V
AUX. 5V
Frequency Response
PHONO. 20 to 20,000 Hz. ±0.2 dB
(RIAA STD)
CD, TUNER, TAPE 1/2. .. 4 to 100.000 Hz, +0.5 dB.
-3 dB
AUX.4 to 100,000 Hz, +0.5 dB,
-3 dB
Signal-to-Noise Ratio (IHF A network)
PHONO (MM). 75 dB
PHONO (MC).70 dB
CD, TUNER. TAPE 1/2. .. 100 dB
AUX. 100 dB
Power Requirement. 120 V/60 Hz, 220 V/50 Hz,
240 V/50 Hz, 100 V/50 Hz-60 Hz
(depending on destinations)
Power Consumption. 10 watts
Dimensions (overall). 440 (W) x 70 (H) x 325 (D) mm
17-5/16'x 2-3/4 "x 17-13/16"
Weight (net).4.1 kg/9.02 lbs.
• Specifications and design subject to possible modification
without notice.
5

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