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Sound Rating: 5 / 10 # Owners: 1
Relaibility Rating: 5 / 10 Views: 152

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Technical Details

Brand: Simon





Country of Manufacture:United Kingdom

Release dates:1955 - 1958

Tracks:1/2 Rec/PB

Speeds: 3 3/4, 7 1/2

Max Reel Size("): 7"

Number of heads: 2

Head Composition: Permalloy

Head Configuration: Mono - Full Track

Auto Reverse?:No

Voltage(s): 220-240v

Frequency Response:(all 3 dB): 7½ ips: 50Hz to 12kHz

Signal-to-Noise Ratio:better than 40dB

Sound quality rating:5 / 10

Long-term reliability rating: 5 / 10

Additional Details


The SP2 was a portable, half-track mono machine first released in July, 1955 and manufactured by Simon Sound Services of Portman Square, London.
The deck was powered by three specially designed Collaro motors and had two playing speeds, 3¾ and 7½ ips. Reels of up to 7 inches could be accommodated.
The output from the internal amplifier was 10 watts from a pair of EL84s and this was delivered to a front-mounted 10-inch speaker or an external speaker. A straight-through amplifier switch allowed the recorder to be used as a public address system.

Additional Info

Total harmonic distortion: 4% at 10 watts (fully modulated tape at 1kHz) / Bias frequency: 55 kHz / Valve complement: EF86, ECC83, ECC81, EL84 x 4 & EZ81 / Rewind speed: 1 minute for 1200ft / Audio output power: 10 watts / Inputs: Mic: 1 Mohm unbalanced, sensitivity (record) 1.5mV Radio input: 0.5 Mgohm unbalanced, sensitivity (rec) / Outputs: headphones or external 15 ohm speaker / Speaker(s): 10″ round, 3 ohms / Weight: 50 lbs (22.7 kg) / half-track mono


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