Rotel RC-1000
A stereo
preamplifier/control center featuring a ten-octaave graphic equalizer with
center frequencies of 32, 63, 125, 250, 500, 1 k, 2k, 4k, 8k, and 16 kHz. Other
features include; a magnetic phono input with selectable loads of 35 k, 50 k
and 70 k ohms; a moving coil (MC) phono pickup input; automatic dubbing from/to
either of two recorders; and a subsonic filter for the phono input.
There are inputs for
magnetic phono, MC phono, tuner, aux, and two tape. One set of stereo line
level outputs is provided.
There are controls
for volume, balance, ten equalizers, tape monitor/tape dubbing selector, and
phono input load selection. Switches for power, octave equalizer on-off,
subsonic filter, stereo/mono mode, loudness compensation, 20 dB audio muting,
and input selection. Two switched AC outlets are provided.
Performance. The
rated output is 1 volt, and all tests were conducted at thic value. With the
equalizers in the center,, or Off, position, the frequency response measured ±1
dB from 20 to 20,000 Hz frequency. The output clipping level measured 4,2
volts, with a worse-case distortion of 0,8%.
The equalization
range for each equalizer control was nominally ±12 dB at the center frequency.
The worse-case distortion with full equalization applied and no more than 1
volt output measured 0,05% T.H.D. the equalizers are relatively broad band and
can function either as graphic equalizers or standard tone controls if two or
more controls are used to contour the frequency response. Because of their
broad characteristic, the equalizers avoid the usual "peaky" midband
equalization generally associated with octave equalizers.
The subsonic filter,
which is in the phono channel, provides 6 dB attenuation at 10 Hz with
absolutely no effect from 20 Hz up. The magneti input hum and noise measured 70
dB, stereo separation was into the noise level.
Overall dimensions
are 16-15/16-inch (wide); 3-27/32-inch (high); 11-13/32-inch (deep). Weight is
10,8 lbs.
Specificationspre
Amplifier Section
Output
Voltage/Impedance
Rated output : 1 V/1 k Ω
Max. Output (0,1%
T.H.D.0 : 3 V/1 k Ω
Total Harmonic
Distortion 9rated output, 20 - 20,000 Hz):
Output : 0,03%
Frequency Response:
Output : 5 - 70,000 Hz ±1 dB
Huma nd Noise (IHF A
network):
Tuner, Aux : 95 dB
Tape Monitor 1, 2
: 95 dB
Residual : 0,05 mV ( Volume set at min.)
Input
Sensitivity/Impedance:
Tuner, Aux : 150 mV/30 k Ω
Tape Monitor 1,2
: 150 mV/30 k Ω
Overload (1 kHz,
0,1% T.H.D.):
Tuner, Aux : 6 V
Tape Monitor 1, 2
: 6 V
Phono Equalizer
Section:phono Equalization: ±0,5 dB (20
to 20,000 Hz)
Huma and Noise (IHF
A network):
Phono ! : 75 dB
Phono 2 (MC) : 65 dB
Input
Sensitvity/Impedance:
Phono 1 : 2,5 mV/35, 50, 70 k Ω
Phono 2 (MC) : 0,12 mV/30 k Ω
Overload (1 kHz,
0,5% T.H.D.)
Phono 1 : 180 mV
Phono 2 (MC) : 10 mV
Headphones Amplifer
Section (Ref. Pre Amplifier Rated Input)
Total Harmonic
Distortion (1 kHz) : 0,6%
Frequency
Response: 30 - 10,000 Hz +0 dB -3 dB
Huma and Noise (IHF
A network): 85 dB
Residual Noise: 35 µV
Output Impedance
: 4 - 16 ohms
Crosstalk (at 10
kHz): 40 dB
Control
Characteristics:
Octave Equalizer
(±12 dB) : 32, 63, 125, 250, 500, 1000,
2000, 4000, 8000, 16000
Loudness
Contour: 100 Hz (+10 dB), 10 kHz (+4 dB)
Subsonic
Filter: 15 Hz /12 dB/oct
Audio Muting: -15 dB
Miscellaneous
Power
Requirements: 120 V/60 Hz or 220 V/50 Hz
or 240 V/50 Hz or 100, 120, 220, 240 V \; 50/60 Hz
Power
Consumption: 16 watt max
Dimensions (W x H x
D): 430 x 98 x 290 mm
Weight: 4,9 kg (10,78 lbs)