MECHANICAL

Tape Transport:

Three Studer eddy current motors. Electronically governed capstan motor. Electronic speed change. Solenoid operated via 3 relays.

Tape Speeds:

3.75 and 7.5 ips (9,5 cm and 19 cm/sec.) ± 0.2%

Wow and Flutter:

max. ± 0.08% at 7.5 ips
max. ± 0.1% at 3.75 ips (Weighted at DIN Standard 45507)

Tape Slip:

Less than 0.2%

Reel Diameter:

Maximum 10.5" (26,5cm)
(Minimum hub diameter 23/8 inches)

Fast Forward / Rewind:

Fast winding time for 1800' (1100m) is 92 seconds

Tape Heads:

Three (Separate precision erase, record and playback heads.) Patented 'True Radius' design ensures excellent S/N ratio and head wrap

Guide System:

The Heads, the capstan drive, and the machines tape guides are mounted to a one-piece casting to maintain precise alignment.

Operating position:

horizontal or vertical

ELECTRICAL

Monitoring:

Individual stereo record and playback heads with separate preamps, plus separate record and play circuits permit full source-tape monitoring.

Equalization:

NAB Standard on both record and playback at all speeds.
IEC Standard switchable on playback only.

Record Playback
Frequency Response:

7.5 ips - 30 Hz - 20 kHz + 2 / - 3 dB
3.75 ips - 30 Hz - 16 kHz + 2 / - 3 dB

Signal to Noise (2-track version):

7.5 ips - better than 66 dB
3.75 ips - better than 63 dB

Distortion at Full Modulation at 1 kHz:

Max. 2% at 7.5 ips.
Max. 3% at 3.75 ips.

Crosstalk at 1 kHz:

Stereo, better than 45 dB
Mono, better than 60 dB

Bias Frequency:

120 kHz, push-pull oscillator. Designed for low noise, high output tapes

Input Sensitivity per Channel:

Microphone, switchable LOW/HIGH
LOW: 50 - 600 ohms (unbalanced) 15mV
HIGH: up to 100K ohms 2.5 mV
RADIO: 33K ohms 2.5 mV
AUX: 1M ohms 33 mV

Output per Channel:

OUTPUT: max 2.5 rms @ 600 ohms
RADIO: max 1.2 rms @ 2.5 K ohms
PHONES: 200 - 600 ohms (no electrostatic)

Semiconductor Complement:

54 Transistors; 32 diodes, 4 silicon rectifiers, 1 CdS-cell

Output Amplifiers:

Plug-in optional. 2 x8 watts continuous rms power, 2 x10 watts music power as per IHFM, 4-16 ohms, less than 1% distortion.

Power Supply:

Electronically stabilized.

Mains Voltages:

110, 130, 150, 220,240, 250V / 50-60 Hz.

Power Consumption:

70-100 watts

Dimensions:
(Wooden Cabinet)

16-¹/₄" W x 14-¹/₈" H x 8-¹/₂" D.
(measurements include knobs but not reels.)

Approximate Weight:

34 pounds ( 15 kg)

All figures quoted are minimum performance values as measured with REVOX 601 tape and are normally exceeded by all units.