Tascam 234 syncaset

Tape: Compact Cassette, C-30 to C-90, chrome (cobalt) tape (70 µs EQ)

Track Format: 4-track, 4 channel one direction recording/playback

Heads

4x channel record/playback (Permalloy)

4x channel erase (Ferrite)

Motors

1x FG servo-controlled DC capstan motor

1x DC reel motor, 1 DC control motor

Tape Speed 1: 9.5 cm/s (3-3/4 ips) ±1%

Pitch Control: ±12% of normal tape speed

Wow & Flutter1: ±0.06% peak (DIN/IEC/ANSI weighted) 0.04% (NAB, weighted)

Fast Wind Time: Approx. 85 seconds for C-60 tape

Recording Time: 15 minutes for C-60 tape

Dimensions: 482x147x357 mm

Weight: 9.8 kg

Electrical

Mixer Section

MIC/INST Input

Input Impedance: 100k ohms, unbalanced

Nominal Input Level: -60 dBV (1 mV) to -10 dBV (0.3 V)

Min. Input Level: -70 dBV (0.3 mV), at TRIM max.

Max. Input Level: +15 dBV (5.6 V), at TRIM min.

Line In

Input Impedance: 22k ohms, unbalanced

Nominal Input Level: -10 dBV (0.3 V)

Min. Input Level: -20 dBV (0.1 V), at INPUT max.

Max. Input Level: + 15 dBV (5.6 V)

Line Out

Output Impedance: 100 ohms

Nominal Load Impedance: 10k ohms

Minimum Load Impedance: 1.7k ohms

Nominal Output Level: -10 dBV (0.3 V)

Maximum Output Level: + 15 dBV (5.6 V)

Cue Out (L,R)

Output Impedance: 100 ohms

Nominal Load Impedance: 10k ohms

Minimum Load Impedance: 1.7k ohms

Nominal Output Level: -10 dBV (0.3 V), PAN fully L/R

Maximum Output Level: + 15 dBV (5.6 V)

Phones Output (Stereo)

Nominal Load Impedance: 8 ohms

Minimum Load Impedance: 4 ohms

Maximum Output Level: 100 mW (8 ohms)

Frequency Response: 20 Hz - 20 kHz +0/-2 dB

S/N Ratio One mic/inst in to line out

68 dB (Trim max.)/82 dB (TRIM min.) (IHF, A weighted)

64 dB (Trim max.)/78 dB (TRIM min.) (unweighted, 20 - 20,000 Hz)

One line in to line out: 82 dB (IHF, A weighted); 78 dB (unweighted 20 - 20,000 Hz)

Total Harmonic Distorsion: 0.05% (1 kHz, OVU)

Crosstalk: 65 dB (1 kHz)

Peak Level Indicators: Light up at 8 dB above OVU

Recorder Section

Record Channels: 4 (4 dbx II NR, switchable)

Playback Channels: 4 (4 dbx II NR, switchable)

Record Level Calibration: 160 nWb/m tape flux level (0 VU reference)

Bias frequency: 100 kHz

Equalization: 3180µs + 70μs

Overall Frequency Response²: 40 Hz - 14,000 Hz ±3 dB at 0 VU (Rec/Repro)

Signal-to-Noise Ratio² Referenced to 3 % THD level [285nWb/m] at 315 Hz

54 dB (dbx Out, IHF, A weighted 400 Hz)

52 dB (dbx Out, unweighted, 20 Hz - 20,000 Hz)

95 dB (dbx In, IHF, A weighted 1 kHz)

90 dB (dbx In, unweighted, 20 Hz - 20,000 Hz)

Total Harm. Distortion²: 1.0% (400Hz,OVU)

Crosstalk: 70 dB (1 kHz, OVU, dbx IN)

Erasure: 70 dB referenced to 285 nWb/m at 1 kHz

Power Requirements: 220 V AC, 50 Hz, 30W