Tascam 22-4

Price: € 1100

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: FG-servo DC motor Reel

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

15 ips: 40 Hz-22 kHz ±3 dB at 0 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