Technical Details
Brand: Stellavox
Model:SP7
Category:Super High Fidelity
Application:Portable
Electronics:Solid State
Equalization:IEC
Country of Manufacture:Switzerland
Release dates:1969 - 1972
Tracks:1/2 Rec/PB
Speeds: 3 3/4, 7 1/2, 15, 30
Max Reel Size("): 7"
Number of heads: 3
Head Composition: Permalloy
Head Configuration: Stereo
Auto Reverse?:No
Voltage(s): Multi
Frequency Response:(+ 1, -2 dB): 7½ ips: 20Hz to 15kHz
Wow and Flutter:0.07% (15 ips). 0.7% (7½ ips)
Signal-to-Noise Ratio:56 dB for half-track stereo recording at peak level
Sound quality rating:9 / 10
Long-term reliability rating: 9/ 10
Additional Details
Description
Released in 1969, Stellavox’s new battery portable recorder, designated SP 7, measured only 3 ins. x 8½ ins. x l0½ ins. overall and weighed in at under 8 Ib. complete with tape and batteries.
A truly professional machine it was available only to studios and industrial users, but it embodied many features of great interest to all amateurs. The SP7 was on a par with the Nagra 4. The super durable chassis was made from a block of machined aluminum. 5 inch reel capacity can be extended to 10 1/4 inches with an accessory ABR 85
Battery 12 x AA 1.5v, headphone stereo/mono switchable, Quartz speed control switchable on-off on the underside of the recorder.
Additional Info
Speed tolerance: 0.5% / Total harmonic distortion: 1.1 per cent with an average of 2.0 per cent when working +4 dB / Channel separation: 60dB / Bias frequency: 75kHz / Inputs: mike (0.2mV, 200 Ohm, DIN) line (1.55V, 820 kOhm) aux (440mV, 10kOhm) / Outputs: line (1.55V 5-5000Ohm), headphone / Speaker(s): 88 mm diameter (3½ “) / Dimensions: 10½ x 8½ x 3” (267 x 216 x 76 mm) / Weight: under 8 lbs with tape & batteries (3.64 kg) / half-track stereo (changeable with plug-in heads)