Audio Database

The

ROTEL RC-2000
110,000yen( at the 1970 in-the-late time(?))

Description
@
Control amplifier of a whole page DC stream composition.

The low distortion is realized by investigating thoroughly until it results in the design of the printed circuit board, or a placement of a shielding code including a material or component partses.

MC head amplifier is carried.
The head amplifier adopted as rc-2000 serves as DC scheme which banished the capacitor from the input circuit.
The differential-amplification circuitry which used the super-low-noise transistor is adopted as a first rank circuitry, and the pure complimentary push-pull circuit is adopted as an output stage.

The direct phone functionality is carried. If this functionality is turned ON, the circuitry of a first priority for Phono can be arranged, and the circuitry which affects a Phono signal will be eliminated from a signal system.
Even if it turns ON this functionality, a volume and a Subsonic Filter can be used.

The two-step DC difference input circuitry by low-noise FET is adopted as an equalizer-amplifier part, and the property which was excellent with the stream composition which made the output stage the push pull has been acquired in it.

The switchpoint of each control of the phone selector, the recording selector, and the function selector is installed in the rear panel, and has stopped leading about of a shielding code to the minimum. The operation serves as a scheme with which the rod of the shape of a plate extended from the thumb of the front panel drives the switchpoint of a rear panel.

A load impedance can also adjust three steps and three steps of additional capacitance, and man-month cartridge can do nine kinds of combination in total.

The recording selector is carried and the output signal to a tape deck can be chosen regardless of the sound which comes out from a speaker.

DC amplifier scheme is adopted as a tone control circuit. Moreover, it is possible to cancel a tone circuitry and to also make it operate as flat buffer amplifier with a tone-defeat switchpoint.
rc-2000 -- a turnover frequency -- Bass/Treble -- a two-step coordination can be performed, respectively. Moreover, in rc-2000, the attenuator type is adopted and a right-and-left independency can adjust.

The Subsonic Filter and the supersonic filter are carried.

The termination by which the gilding treatment was carried out is adopted.

The front panel serves as EIJ specification rack-mounted type.

MC

Rating of a mode
Form Control amplifier
<Equalizer part>
THD Phono MAG:0.004%
Phono MC:0.006%
RIAA deflection (20Hz - 20kHz) }0.2dB
Input sensitivity/impedance Phono1 MAG: 2mV / 35, 50, 70kohm/0, 100 or 200pF
Phono2 MAG: 2mV / 50kohm
Phono3 MC: 100 microvolts/33 ohm
Maximum permissible input (1kHz, THD0.5%) Phono MAG:400mV
Phono MC:20mV
<Preamplifier part>
THD 0.008% (at the time of an Output power 20Hz - 20kHz)
Frequency characteristic 4Hz - 160kHz
S/N ratio (IHF-A network) Tuner, Aux: 95dB
Tape monitor:95dB
remains noise (at the time of a volume min) 6 microvolts, 100dB
Input sensitivity/impedance Tuner, Aux:150mV /, 50kohm
Tape monitor: 150mV / 50kohm
Maximum permissible input (1kHz, THD0.5%) Tuner, Aux:15V
Tape monitor:15V
<Control property>
Turnover frequency Bass:150Hz/400Hz
Treble:7kHz/2.5kHz
Control width Bass: }5dB / }10dB
Treble: }5dB / }10dB
Supersonic filter 24kHz, 12dB / oct
Subsonic Filter 15Hz, 12dB / oct
<Synthesis>
Maximum electric power consumption 30W
Dimensions Width 482x height 143x depth of 333mm
Weight 10kg