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Sound Rating: 5 / 10 # Owners: 1
Relaibility Rating: 5 / 10 Views: 327

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Technical Details

Brand: Akai

Model:M-7

Category:Mid High Fidelity

Application:Consumer

Electronic:Tube

Country of Manufacture:Japan

Release dates:1964 - 1967

Tracks:1/4 Rec/PB

Speeds: 1 7/8, 3 3/4, 7 1/2

Max Reel Size("): 7"

Number of heads: 3

Dimension: 14" x 20½ " x 8½ " (356 x 521 x 216 mm)

Head Composition: Permalloy

Head Configuration: Stereo

# Motors: 3

Voltage(s): 110-120v

Outputs: RCA

Frequency Response:7½ ips: 30Hz - 23kHz

Wow and Flutter:< 0.06 % at 7½ ips, < 0.1% at 3¾ ips, < 0.13% at 1 ips

Signal-to-Noise Ratio:-40db

Sound quality rating:5 / 10

Long-term reliability rating: 5 / 10

Weight: 47.3 lbs (21.5 kg)

Additional Details

Description

A four-track stereo, four speed semi-professional recorder with the world’s first cross-field bias system and a single, hysteresis-synchronous two-speed motor.   A removable capstan sleeve plus the two motor speeds gave playing speeds of 1 7/8, 3¾ , 7½ & 15 ips and even at the slowest speed the wow and flutter were negligible. Quite similar to it’s predecessor, the M6.
From a 1964 equipment review… Appearance and styling are severely functional but all the controls are well placed and does its job efficiently.  The recorder can be played in any position, on it’s back, upright or at an angle and is transportable, rather than portable.
Standard ¼” jack-plugs are used for all input and output connections which include head output, and pre-amplifier output as well as microphone and speaker connections….A recorder for the real enthusiast or semi-professional rather than the domestic user.

Additional Info

Cross-talk: better than 80 db at 1kHz / Valve complement: 2 x 6267 (EF86), 2 x 12AX7, 2 x 6BQ5, 1 x 6AR5, 2 x 6X4 / Rewind speed: 75 seconds for 1,200 ft reel / Audio output power: 6 watts per channel / Inputs: Low level high impedance mic input, high level line input / Outputs: High impedance head output, 8 / 16 ohm amplifier output / Speaker(s): single internal speaker, 2 x 8″ coaxial extension speakers (optional) / Dimensions: 14″ x 20½ ” x 8½ ” (356 x 521 x 216 mm) / Weight: 47.3 lbs (21.5 kg) / quarter-track stereo

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