An asterisk next to a figure indicates the minimum guaranteed performance.

TRACK SYSTEM

4 track 2 channel stereo/monaural system

TAPE SPEED

7-1/2 and 3-3/4 ips ±0.7%

*7-l/2 ips (19 cm/sec) ±0.8%

*3-3/4 ips (9.5 cm/sec) ±1.0%

WOW AND FLUTER

Less than 0.06% WRMS at 7-1/2 ips

Less than 0.09% WRMS at 7-3/4 ips

*Less than 0.1% RMS at 7-1/2 ips (FWD/REV)

*Less than 0.15%RMS at 3-3/4 ips (FWD/REV)

TOTAL WOW AND FLUTTER

*Less than 0.1% at 7'-1/2 ips (FWD/REV)

*Less than 0.15% at 3-3/4 ips (FWD/REV)

FREQUENCY RESPONSE

30 to 25,000 Hz ±3 dB at 7-1/2 ips

30 to 19,000 Hz ±3 dB at 3-3/4 ips (Using AKAI LN-150-7 tape)

*30 to 22,000 Hz ±3 dB at 7-1/2 ips

*30 to 18,000 Hz ±3 dB at 3-3/4 ips

HARMONIC DISTORTION

Less than 0.5%

TOTAL HARMONIC DISTORTION

*Less than 1.0% at 7-1/2 ips

*Less than 2.0% at 3-3/4 ips

SIGNAL TO NOISE RATIO

*Better than 50 dB

TOTAL SIGNAL TO NOISE RATIO

*Better than 47 dB

OUTPUT                                                          LINE

DIN

PHONE

*0.775V (0 dBm ±1.0 dB/0 dBm ±1.5 dB, FWD/REV)

0.5V

30 mV/8 ohm at playback of a 700 Hz "0" VU pre-recorded test tape. (Output Volume at maximum)

INPUT                                                                MIC

LINE

DIN

More than 0.25 mV/5 k ohm

More than 70 mV/150 k ohm

More than 3 mV At "0" VU output. (Recording Volume at maximum)

RECORDING/PLAYBACK LEVEL

*0.775V(0dBm±1.5 dB) FWD/REV deviation: ±1.5 dB

CROSS TALK

Better than 40 dB, stereo

Better than 55 dB, monaural

ERASE RATIO

Better than 70 dB

BIAS FREQUENCY

103 kHz ±5%

BIAS LEAK

Better than -30 dB

HIGH FREQUENCY DEVIATION

Between FWD playback channels: within 3 dB

Between REV playback channels: within 4 dB

Between FWD and REV: within 3.5 dB

At playback of an 8,000 Hz 3-3/4 ips pre-recorded test tape at 7-1/2 ips

RECORDING TIME

90 min stereo recording at 7-1/2 ips, using a 1,800 ft tape

F.FWD AND RWD TIME

Approximately 120 sec at 50 Hz, using a 1,800 ft tape

MOTOR                                           

MAIN MOTOR

REEL MOTOR

2 speed AC servo control outer rotor motor

Type: SCM2-24KJ 4 pole

Revolutions:   

615 rpm at 7.-1/2 ips (19 cm/sec)

307.5 rpm at 3-3/4 ips (9.5 cm/ sec)

Two 6 pole eddy current outer rotor motors

Type: 24XO-MR

Revolutions:

930 rpm at 50 Hz

1,120 rpm at 60 Hz

HEAD                                  

RECORDING/ERASE COMBINATION HEAD

PLAYBACK HEAD

Type:  RE4-6

Gap:

REC HEAD;  4 microns

ERASE HEAD; double gap

Impedance:  

REC HEAD; 1,400 ohm ±25% at 100 kHz

ERASE HEAD; 130 ohm ±7% at 100 kHz

DC Resistance: 

REC HEAD; 5.5 ohm

ERASE HEAD; 1.8 ohm

Type: P4-202

Gap:   1.7 ±0.5 microns

Impedance:   1,400 ohm at 1 kHz

DC Resistance:  268 ohm

REVERSING TIME

5 to 6 sec at 7-1/2 ips (muting interval)

TRANSISTOR

2SA564(Q)(R) ... 1                       2SC1211(D)(E) ... 2

2SC458LG(C) ... 14                     2SD361(D1)(D2) ... 2

2SC945 (P)(Q)(R) ... 18             TIP48 .... 1

2SC945L(Q)(R) .... 1

DIODE

1N34A ... 2                                    1S2473VE ...  6

1N4001 ... 4                                  10D2 ... 4

1N4003 ... 5                                  10D4 ... 1

1S1588 ... 1                                    RD5A(M) ... 1

1S2473 ... 1

POWER REQUIREMENTS AND CONSUMPTION

100 to 240V AC 50/60 Hz, 90W (Universal models)

240V AC 50 Hz, 90W (BSI Models)

220V AC 50 Hz, 90W (CEE Models)

120V AC 60 Hz, 90W (CSA Models)

100V AC 50/60 Hz, 60/65W (JPN Models)

DIMENSIONS

440(W)x404(H)x208(D) mm (17.3"xl5.9"x8.2")

Dimensions include all protruding parts.

WEIGHT

16.6 kg (36.5 lbs)