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Nakamichi CR 4

Nakamichi CR 4

Track Configuration: 4 tracks 2 channel stereo 

Heads

Erase head x1

Record head x1

Playback head x1

Motors “Tape Transport”

CR-4: FG servo brushless, slotless, coreless DD motor (capstan drive) x1

DC motor (reel drive) x1

Wow-and-Flutter

Less than ±0.048% WTD Peak

Less than 0.027% WTD RMS

Frequency Response

CR-4: 20 Hz-21,000 Hz ±3 dB

Signal-to-Noise Ratio

Dolby C-Type NR on <70 μs, ZX [Type IV tape]  

Better than 72 dB (400 Hz, 3% THD, IHF A-WTD RMS)

Dolby B-Type NR on <70 μs, ZX [Type IV tape]

Better than 66 dB (400 Hz, 3% THD, IHF A-WTD RMS)

Total Harmonic Distortion

CR-4: Less than 0.8% (400 Hz, 0 dB, ZX [Type IV] tape)

Less than 1.0% (400 Hz, 0 dB, SX [Type II], EX II [Type I] tape)

Erasure: Better than 60 dB (100 Hz, +10 dB)

Separation: Better than 37 dB (1 kHz, 0 dB)

Crosstalk: Better than 60 dB (1 kHz, 0 dB)

Bias Frequency: 105 kHz

Input (Line): 50 mV/30k ohms

Output (Line): 0.5 V (400 Hz, 0 dB, output level control at max.); 2.2k ohms

Headphones: 5 mW into 8 ohms (400 Hz, 0 dB, output level control at max.)

Fast-Wind Time: Approx. 80 seconds (with C-60 cassette)

Power Source: 220 V 50/60 Hz

Power Consumption: CR4: 38 W max

Tape Speed: 4.8 cm/sec. ±0.5%

Dimensions: 430x100x265 mm

Weight: CR-4: 5.9 kg