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Production: Obsolete
Hire stock: Yes
New stock: No
Used stock: No
Specifications Two speed (3.75 or 7.5 inches per second)
Frequency response:
@ 3.75 ips 30Hz - 16kHz 3dB
                50Hz - 10kHz 1.5dB
@ 7.5 ips 30Hz - 20kHz 3dB
               50Hz - 15kHz 1.5dB
Distortion: <0.5% @ 0VU, 3.75 ips
                <0.2% @ 0VU, 7.5 ips
Signal to noise ratio: >60dB @ 3.75 ips 
                               >63dB @ 7.5 ips
Crosstalk: >45dB @ 1kHz
Inputs per channel:
MIC (LO) unbalanced 0.15mV / 2.2k Ohms
(for 50 - 600 Ohms microphones)
MIC (HI) unbalanced 2.8mV / 110k Ohms
(for 50 - 20k Ohms microphones)
AUX unbalanced 40mV / 220k Ohms
Outputs per channel: 1.55V / 390 Ohms @ +6dB
Weight: 17.5kg
Dimensions: 452 (w) x 414 (h) x 207 (d) mm
Power requirements: 110/120/220/240V AC

B77LS quarter track (1 7/8 & 3 3/4 ips version)
B77LS half track (1 7/8 & 3 3/4 ips version)
B77HS half track (7.5 & 15 ips version)
B77 quarter track (3.75 & 7.5 ips version)
B77 half track (3.75 & 7.5 ips version)
B77 Mk2 (7.5 & 15 ips version)
PR99 Mk1 (7.5 & 15ips version)

PR99 Mk3 (7.5 & 15ips version)

Price to rent 

We offer service and calibration for all versions of Revox B77

Optional custom remote varispeed

Revox legendary tape recorders and tape information 

FREE RESOURCE: click here for tape and other standard media playing times.

Recording problems?  

Revox B77 1/4" quarter track open reel analogue domestic hi-fi tape recorder.

Revox B77 analogue open reel recorder

Top flight machine for home recording, easy editing and playback.
Stereo or two channel mono operation, sound-on-sound,  large tape transport buttons, vertical or horizontal operation, comprehensive headphone monitoring, remote control option. 3 motor tape drive. Remote control of all transport functions and electric timer operation are possible.

Studer (formerly known as Studer-Revox) introduced the B77 in 1979 to replace the renowned A77,and later evolved the B77 Mk2, with vari-speed, and then the PR99 Mk1, PR99 Mk2, PR99 Mk3, PR99BV as a professional, edit-friendly, de-knobbed version. Now obsolete.

We also have several Revox B77 and PR99 breaking for parts - most parts available: heads, reels, motors, knobs, pots, brakes, input cards, EQ/bias cards, meters, case hardware. These items are sold as seen. No warranty offered. Prices on application.


Buy replacement drive belts for Revox B77, B77II, B77HS, PR99I
Replacement drive belts.  

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