Brand: Sound (TRE)
Country of Manufacture:United Kingdom
Release dates:1958 - 1961
Speeds: 3 3/4, 7 1/2, 15
Max Reel Size("): 7"
Number of heads: 3
Head Composition: Permalloy
Head Configuration: Mono - Full Track
Frequency Response:(± 3dB): 90 - 14,000 c
Wow and Flutter:less than 0.1% at 15 ips
Sound quality rating:5 / 10
Long-term reliability rating: 5 / 10
The Sound 555 was a half-track mono, three-speed 7″ reel capacity recorder with reversible recording and playback. As with almost all Sound recorders of the 1950s, the Collaro Mk IV deck was used.
The four-watt internal amplifier drove three matched internal speakers,
an external speaker jack was also provided.
Bass and treble controls were provided for playback.
s at 3¾ ips / Inputs: microphone, radio / gramophone / Rewind speed: 60 seconds for 1200ft / Audio output power: 4 watts / Speaker(s): three / Dimensions: 19½ x 13 x 9″ (495 x 330 x 229 mm) / Weight: 35 lbs (15.9 kg) / half-track mono, with reverse record