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Sound Rating: 5 / 10 # Owners: 1
Relaibility Rating: 5 / 10 Views: 138

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Technical Details

Brand: Ampro

Model:757 ‘Hi-Fi 2-speed’




Country of Manufacture:United Kingdom

Release dates:1954 - 1957


Speeds: 3 3/4, 7 1/2

Max Reel Size("): 7"

Number of heads: 2

Head Composition: Permalloy

Head Configuration: Mono - Full Track

# Motors:

Voltage(s): 110-120v

Frequency Response:(all 3 dB): 7½ ips: 40Hz - 12kHz

Wow and Flutter:less than 0.5%

Signal-to-Noise Ratio:42db

Sound quality rating:5 / 10

Long-term reliability rating: 5 / 10

Additional Details


This was Ampro’s first two-speed
recorder, announced in October 1954 and produced up until 1957 when it
was replaced by the (similar) model 758.
The 757 “Hi-Fi” boasted a two-speaker system with a crossover
network to give a frequency response of 40 – 15kHz.
A 6 x 9 inch elliptical Alnico-5 woofer and a 3½ inch round Alnico-5
tweeter were used.
Electromagnetic piano-key controls eliminated all mechanical linkages,
providing push-button operation for starting, stopping, recording, playback
and rewind. Automatic shut-off was also a feature.

Additional Info

Rewind speed: 72 ips forward / 120 ips rewind / Audio output power: 3.2 watts / Weight: 35 lbs (15.9 kg) / half-track mono


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