Country of Manufacture:Japan
Speeds: 3 3/4, 7 1/2
Max Reel Size("): 7"
Number of heads: 1 (PB)
Head Composition: Permalloy
Head Configuration: Stereo
Frequency Response:(± 3dB): 15 ips 30Hz - 28kHz 7½ ips: 30Hz - 24kHz
Wow and Flutter:0.04% at 15 ips, 0.06% at 7½ ips
Signal-to-Noise Ratio:100dB with dBx. 65dB without dBx
Sound quality rating:5 / 10
Long-term reliability rating: 5 / 10
The A-7300RX was a souped-up version of the A-7300. It was a semi-professional two-track stereo mastering deck with dBx noise reduction in a two-unit cabinet with separate electronics. It was the first deck to incorporate the then-new dBx deci-linear noise reduction system, which essentially gave a signal-to-noise ratio of 100dB.
Other advanced features included a built-in 4-in, 2-out mixer, XLR/Cannon connectors, 20dB mic attenuators, a master level control in addition to the regular level controls, dual-scale VU meters (+3 or +6 VU), 3-position bias and EQ switches to allow exact tape matching, IC logic controls with remote, high density Permaflux heads, ±5% pitch control, edit button (which cut out the take-up reel motor to allow unwanted tape to spill out) and an elapsed time counter with memory.
Price when new (in the UK) was £1248 and $3460 in Australia.
Stereo separation: 80dB with dBx. 50dB without dBx at 1kHz / Harmonic distortion: 0.4% with dBx. 0.8% without dBx at 1kHz normal operating level / Counter accuracy: better than ±1.5% at 15 ips, play mode / Rewind speed: 150 seconds for 1800ft 10½ ” NAB reel / Inputs: 4 x line: 100mV impedance 50KΩ 4 x microphone: 0.25mV impedance 600Ω / Outputs: 2 line: 0.3V – load impedance10KΩ Stereo headphones jack: 8Ω / Dimensions: Transport: 18½ x 18 × 11¾” (470 × 455 × 300mm) Amplifier: 18½ x 8 × 12¼” (470 × 205 × 310mm) / Weight: Transport: 61.6 lbs (28 kg) Amplifier: 28.6 lbs (13 kg) / half-track stereo