Infrequent Sound [sex.tex] technology: Tascam 424 MkIII Portastudio 8-channel / 4-track Cassette Recorder, 1999, made in China

Tascam 424 MkIII Portastudio 8-channel / 4-track Cassette Recorder, 1999, made in China

Link: soundonsound | tascam [Owner's manual] | muzoborudovanie

Specifications

Mechanical Characteristics

Tape: Compact Cassette (C-30 to 90), High-Bias (CrO2)
Track Format: 4-track/4-channel
Head Configuration:
- 4-channel record/play (permalloy) x 1
- 4-channel erase (ferrite) x 1
Motor: DC servo motor x 1
Tape Speed: Switchable two speeds:
- 9.5 cm/sec. (3-3/4 ips)
- 4.8 cm/sec. (1-7/8 ips), ± 1%
Pitch Control: ± 12 % (approx.)
Wow and Flutter:
- 0.06% WRMS at 4.8 cm/sec.,
- 0.05% WRMS at 9.5 cm/sec.
Fast Winding Time: 120 sec. (approx.) with C-60
Dimensions (W × H × D): 419 x 115 x 357 mm (16-1/2" x 4-1/2" x 14-1/16")
Weight: 4.9 kg (10.8 lbs.)

Electrical Characteristics

Mixer Section
MIC/LINE INPUT, Ch.1-4 (XLR type connector x 4):
Input Impedance: 3.6k ohms
Nominal Input Level:
- –60 dBV (1mV) (MIC position)
- –20 dBV (0.1 V) (LINE position)
Maximum Input Level: +3 dBV (1.4 V) at Trim Min.

MIC/LINE INPUT, Ch.1-6 (1/4" phone jack x 6)
Input Impedance: 5.6k ohms
Nominal Input Level:
- –50 dBV (3mV) (MIC position)
- –10 dBV (0.3 V) (LINE position)
Maximum Input Level: +10 dBV (3 V) at Trim Min.

STEREO INPUT, Ch.7-8 (1/4" phone jack x 2)
Input Impedance: 10k ohms
Nominal Input Level: –10 dBV (0.3 V)
Maximum Input Level: +10 dBV (3 V)

SUB INPUT (RCA jack x 2)
Input Impedance: 10k ohms
Nominal Input Level: –10 dBV (0.3 V)
Maximum Input Level: +10 dBV (3 V)

LINE OUTPUT (RCA jack x 2)
Output Impedance: 100 ohms
Nominal Output Level: –10 dBV (0.3 V)
Minimum Load Impedance: 2k ohms

EFFECT 1 SEND (1/4" phone jack)
Output Impedance: 100 ohms
Nominal Output Level: –10 dBV (0.3 V)
Minimum Load Impedance: 2k ohms

EFFECT 2 SEND/TAPE CUE OUT (1/4" phone jack)
Output Impedance: 100 ohms
Nominal Output Level: –10 dBV (0.3 V)
Minimum Load Impedance: 2k ohms

TAPE OUTPUT (RCA jack x 4)
Output Impedance: 100 ohms
Nominal Output Level: –10 dBV (0.3 V)
Minimum Load Impedance: 2k ohms

MONITOR OUTPUT (RCA jack x 2)
Output Impedance: 690 ohms
Nominal Output Level: –10 dBV (0.3 V)

PHONES (1/4" stereo phone jack x 1)
Nominal Load Impedance: 30 ohms
Maximum Output Level: 60 mW (approx.)

Equalizer
HIGH (Shelving): 10 kHz, ±10 dB
MID (Parametric): 250 Hz to 5 kHz, ±12 dB
LOW (Shelving): 100 Hz, ±10 dB

Frequency Response:
MIC INPUT to LINE OUTPUT: 20 Hz to 20 kHz ±3 dB
LINE INPUT to LINE OUTPUT: 20 Hz to 20 kHz ±2 dB
LINE INPUT to EFFECT OUTPUT: 20 Hz to 20 kHz ±2 dB
LINE INPUT to PHONES: 40 Hz to 20 kHz ±3 dB

Signal-to-Noise Ratio (20 Hz to 20 kHz, B.P.F. inserted):
1 MIC INPUT to LINE OUTPUT: 65 dB (at a nominal input level of –60 dBV)
4 MIC INPUTS to LINE OUTPUT: 60 dB (at a nominal input level of –60 dBV)
1 LINE INPUT to LINE OUTPUT: 76 dB (at a nominal input level of –10 dBV)
4 LINE INPUTS to LINE OUTPUT: 70 dB (at a nominal input level of –10 dBV)

Distortion
1 MIC INPUT to LINE OUTPUT: 0.05% (at 1 kHz, 15 dB above nominal input level with 30 kHz low-pass filter inserted)
1 LINE INPUT to LINE OUTPUT: 0.04% (at 1 kHz, nominal input level with 30 kHz low-pass filter inserted)
Crosstalk: 55 dB (at 1 kHz, nominal input level with 30 kHz low-pass filter inserted)

Recorder Section

Record/Play channels: 4/4
Noise Reduction: dbx TYPE II
Frequency Response (overall):
- 40 Hz to 16 kHz, ±3 dB at 9.5 cm/sec.,
- 40 Hz to 10 kHz, ±3 dB at 4.8 cm/sec.
Signal-to-Noise Ratio (overall): UNWTD (20 Hz to 20 kHz)/IHF A WTD
HIGH: 55 dB/58 dB (without dbx); 90/95 dB (with dbx)
NORMAL: 54 dB/56 dB (without dbx); 88/93 dB (with dbx)
Total Harmonic Distortion: 1.0% (1 kHz)
Crosstalk (Channel Separation): 55 dB or better
Erasure: 65 dB or better (at 1 kHz, B.P.F. inserted)

Others
Power Requirements
USA/CANADA: 120 V AC, 60 Hz
U.K./EUROPE: 230 V AC, 50 Hz
AUSTRALIA: 240 V AC, 50 Hz
Power Consumption: 22 W

In these specifications, 0 dBV is referenced to 1 Volt. Actual voltage levels are also given in parentheses (0.316 V for -10 dBV rounded off to 0.3 V).

* dbx is a registered trademark of dbx Incorporated.
* Changes in specifications and features may be made without notice or obligation.