Tascam 22-4
Mechanical
Tape: 1/4-inch tape width, 1 mil base
Track format: 4 track, 4 channel
Reel size: 7 inches max.
Tape speed: 15 ips/7-1/2 ips ±0.5 %
Pitch control: ±6%
Wow and flutter
15 ips
±0.07 % peak (lEC/ANSI weighted)
±0.1 % peak (lEC/ANSI unweighted)
7-1/2 ips
±0.09 % peak (lEC/ANSI weighted)
±0.12% peak (lEC/ANSI unweighted)
Fast wind time: 120 seconds for 1800 ft.
Motors
Capstan:
Outer-rotor induction motor
Head configuration: 3 heads: Erase, record and playback
Electrical
Line input
Input impedance: 50k ohms, unbalanced
Nominal input level: -10dBv (0.3 V)
Minimum input level: -20dBv (0.1 V)
Line output
Output impedance: 1k ohm, unbalanced
Minimum load impedance: 10k ohms or higher
Nominal output level: -10dBv (0.3V)
Maximum output level: 0dBv (1V)
Headphones maximum output: 100 mW with 8-ohm stereo headphones
Record level calibration: 0 VU is referenced to 1 kHz, 185 nWb/m
Bias frequency: 100 kHz
Total harmonic distortion
1% at 0VU, 1 kHz, 185nWb/m
3% at 10dB above 0 VU, 1 kHz, 585 nWb/m
Signal to noise ratio At a reference of 1 kHz, 585 nWb/m
15 ips
61 dB A weighted (95 dB with dbx)
56 dB unweighted (85 dB with dbx)
7-1/2 ips
60 dB, A weighted (95 dB with dbx)
55 dB, unweighted (85 dB with dbx)
Adjacent channel separation: 40 dB or more at 1 kHz
Frequency response
7-1/2 ips: 40 Hz - 20 kHz ±3 dB at -10 VU
Equalization
∞ + 35 /µsec. at 15 ips
3180 µsec. + 50 µsec, at 7-1/2 ips
Sync response
7-1/2 ips: 40 Hz-6.3 kHz
15 ips: 50 Hz-8 kHz
Erasure: 70 dB or more, referenced to 1 kHz +10 dB
Headroom
Record amplifier: Higher than 23 dB above 0 VU
Playback amplifier: Higher than 23 dB above 0 VU
Dimensions: 416x410x260 mm
Power requirements: 220 V AC; 50 Hz; 70 W
Weight: 18 kg
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photo4 [ 25 KB ] |