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Sound Rating: 8 / 10 # Owners: 1
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Technical Details

Brand: Teac

Model:A-7300RX

Category:Super High Fidelity

Application:Semi-Pro

Electronic:Solid State

Country of Manufacture:Japan

Release dates:1976 - 1980

Original Price: $1995

Tracks:1/2 Rec/Play+1/4PB

Speeds: 7 1/2, 15

Max Reel Size("): 10.5"

Number of heads: 3

Dimension: 37 x 16 × 24.5" (940 × 410 × 620mm)

Head Composition: Permalloy

Head Configuration: Stereo - Stacked

# Motors: 3

Auto Reverse?:No

Voltage(s): 110-120v, 220-240v

Outputs: XLR, RCA

Frequency Response:30Hz - 28kHz (15ips) 30Hz - 24kHz (7½ ips 3dB)

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:8 / 10

Long-term reliability rating: 8/ 10

Weight: 90.2 lbs (41 kg)

Additional Details

Description

The Teac A-7300RX was a souped-up version of the A-7300. Much like the Teac/Tascam 25-2, 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.

Teac also produced another similar model in even smaller quantities, the A-7400RX, which like the 25-4 had a quarter track Playback head for a total of four heads.

Additional Info

Heads
three (record and playback both high density Permaflux)
Motors
Direct drive DC servo capstan motor
2 x Eddy current induction reel motors
Tape speeds
15 and 7½ ips
Frequency response (± 3dB)
15 ips 30Hz – 28kHz
7½ ips: 30Hz – 24kHz
Wow & flutter
0.04% at 15 ips, 0.06% at 7½ ips
Signal to noise ratio
100dB with dBx; 65dB without dBx
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)
Total: 37 x 16 × 24.5″ (940 × 410 × 620mm)
Weight
Transport: 61.6 lbs (28 kg)
Amplifier: 28.6 lbs (13 kg)
Total: 90.2 lbs (41 kg)

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