Nakamichi Stereo System Stereo Music System User Manual download pdf (Page 32)

Stereo Music System

Specifications

FM Tuner Section

- All RF levels in microvolts given re 75-ohm antenna input.

- Modulation: Mono 100 %, Stereo Pilot: 10 %, Stereo Audio Signal:

90 %

Frequency Range

U.S.A./Canada....................... 76.0 - 90.0 MHz in 100-kHz steps

Other Area ............................. 87.5 - 108.0 MHz in 50-kHz steps

IHF Usable Sensitivity ............... 14 dBf / 2.7 µV (Mono, IHF)

50-dB Quieting Sensitivity ......... 22 dBf / 6.9 µV (Mono)

Signal-to-Noise Ratio ................ Mono : Better than 72 dB at 65 dBf

Stereo : Better than 68 dB at 65 dBf

Frequency Response ................ 30 - 15,000 Hz +1, -3 dB

Total Harmonic Distortion .......... Mono : Less than 0.4 % (1 kHz)

Stereo : Less than 0.6 % (1 kHz)

Stereo Separation ..................... Better than 30 dB (1 kHz)

CD Player Section

System ....................................... Compact Disc digital audio

Signal Readout .......................... Optical (semiconductor laser)

Error Correction ......................... CIRC principle

Number of channels .................. 2 channels, stereo

D/A Converter type .................... 20-bit Dual D/A Converters

with 8-times oversampling digital filter

Sampling Frequency ................. 44.1kHz

Quantization .............................. 16-bit linear

Disc Rotational Velocity............. Approx. 200 to 500 rpm

(constant linear velocity)

Wow-and-Flutter ........................ Below measurement limit

Frequency Response ................ 5 - 20,000 Hz ±0.5 dB

Total Harmonic Distortion .......... 0.005 % or less (1 kHz, 0 dB)

Signal-to-Noise Ratio ................ Better than 95 dB (IHF A-WTD)

Dynamic Range ......................... Better than 95 dB

Channel Separation................... Better than 90 dB

Optical Digital Output ................ 660 nm, –18 dBm

[Main unit]

Control Amplifier Section

Inputs ......................................... 2 (Tape, Aux)

Outputs ...................................... 1 channel (Subwoofer)

Recording Outputs .................... 1 (Tape)

Input Sensitivity / Impedance ...........

250 mV / 33 kohm

Rated Output Level / Impedance

Line Output ............................ 500 mV / 1 kohm

Recording Output .................. 250 mV / 1 kohm

Headphone Output ................ 40mW / 40ohm

Total Harmonic Distortion .......... Less than 0.04 % (20 - 20,000 Hz)

Frequency Response ................ 10 - 50,000 Hz +0, -3 dB

Signal-to-Noise Ratio ..................... Better than 80 dB (A-WTD, input shorted)

Channel Separation ....................... Better than 55 dB (1 kHz, input shorted)

Tone Controls

Bass ....................................... 20 Hz ±10 dB

Mid ......................................... 1 kHz ±10 dB

Treble ..................................... 20 kHz ±10 dB

Loudness ................................... 100 Hz +7 dB, 10 kHz +5 dB

Power Amplifier Section

Continuous Sine Wave Power Output

............................................... 15 W X 2 (1 kHz, 1 % THD)

Maximum Power output ............ 18 W X 2

Total Harmonic Distortion .......... Less than 0.1 % (1 W )

AM Tuner Section

(Modulation: 400 Hz, 30 %)

Frequency Range

U.S.A./Canada....................... 522 - 1,629 kHz in 9-kHz steps

Other Area ............................. 530 - 1,710 kHz in 10-kHz steps

or 531 - 1,602 kHz in 9 - kHz steps

Sensitivity .................................. 55 dBµ/m

Signal-to-Noise Ratio ................ Better than 50 dB at 90 dBµ/m

Total Harmonic Distortion .......... Less than1 % at 90 dBµ/m

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Nakamichi Stereo System Stereo Music System User Manual Page 32

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