Country of Manufacture:Switzerland
Speeds: 3 3/4, 7 1/2, 15
Max Reel Size("): 10.5"
Number of heads: 3
Head Composition: Permalloy
Head Configuration: Stereo
# Motors: 3
Voltage(s): 110-120v, 220-240v, Multi
Wow and Flutter:0.06% at 15 ips. 0.08% at 7½ ips (DIN)
Sound quality rating:7 / 10
Long-term reliability rating: 7 / 10
By the early 1980’s the B-77, had reached its developmental peak with the mkIII and whilst this was a very good recorder, it was not in the ‘professional’ class. Rather than develop the B77 further, Revox came up with the derivative PR-99.
The entire electronics were optimised for extremely low distortion and high tolerances and the new PR99 offered, among other things: connection for automatic controller start from the mixing console electronic real time counter with zero and auto-locator vari-speed of -33% to +50% from the pre-selected nominal speed tape dump mode (for spooling tape into a waste-bin!) ready/safe switch (readiness/check function for inputs). adjustable clock-track function choice of high or low impedance microphone inputs. For hassle-free editing work the drive assembly cover could be raised to the front plate level.
The PR-99 came in a rack-mountable configuration but was also offered in either a portable or console version.
Other features included: integrated control logic with tape motion sensor which allowed any desired transition between different operating modes contactless electronic switching of all motors & remote control of all functions.
The Mk I was easily distinguishable by its mechanical counter, the Mk II featured auto-locator and brushed aluminum top and bottom face plate, and the Mk III sported a dark grey lower panel.
Level metering: VU meter as per ASA standard, with LED peak level indicators / Rewind speed: approximately 120s / 2500ft / Inputs: line: balanced XLR mic: unbalanced 1 / 4″ (Mic Lo -70dBu, Mic Hi -42dBu) / Outputs: line: balanced XLR phones: Max 5.6V, internal resistance 220 ohms / Weight: approximately 45lbs (20.5kg) / half-track stereo