The Casio DA-7 was a very popular portable DAT recorder, largely due to it's low price.
Introduced in 1992.
Compact, lightweight, fully portable Outstanding sound quality
Digital PCM recording and playback capabilities eliminate the noise, distortion, wow and flutter associated with analog system. This plus frequency characteristics and a dynamic range that are virtually incomparable with analog systems give you startlingly realistic fidelity. Skip Play FunctionPress a button and instantly skip to the beginning of the selection you wish to hear. Highly accurate time displaysA glance at the display shows you the elapsed time from the beginning of the tape (Absolute Time Display), the amount of time remaining on the tape (Remaining Time Display), and the amount of time for each selection (Program Time Display). Microphone recordingA built-in microphone amplifier allows direct connection of microphones to the DA-7. Digital input/output JacksBuilt-in digital input/output jacks let you make digital recordings from compact discs, digital tape recorders, and other digital sources. The digital input/output jacks can be connected to the digital output jacks of another DAT unit for copying of digital codes.
| Tape | DAT cassette tape |
| Tape speed | 8.15 mm/sec (12.23 mm/sec in 1.5× playback mode with wide track) |
| Recording time | 120 minutes continuous (with 120-minute tape) |
| Head | Rotary head |
| Drum speed | Approximately 2,000 rpm |
| Track pitch | 13.6 µm (20.4 µm) |
| Sampling frequency (record) | 48 kHz (44.1 kHz: digital input recording only) |
| Sampling frequency (playback) | 48 kHz, 44.1 kHz |
| Quantization | 16-bit linear |
| Modulation | 8-10 modulation |
| Channels | 2-channel stereo |
| Frequency response | 10Hz~20 kHz (±1 dB) |
| S/N ratio | 90 dB |
| Dynamic range | 85 dB |
| Total harmonic distortion | 0.008% (1 kHz) |
| Wow and flutter | Less than measurable range (±0.001% W PEAK) |
| Emphasis | 15/50 µS |
| Rewind time | Approximately 70 seconds (120-minute tape) |
| Line input level | 0.2V (0 dB), RCA pin jack, input impedance 50 kΩ |
| Mic input level | 3 mV (0 dB), standard jack, input impedance 10 kΩ |
| Line output level | 2.0V (0 dB), RCA pin jack, output impedance 1 kΩ |
| Digital input | 0.5V p-p, RCA pin jack, input impedance 75Ω |
| Digital output | 0.5V p-p, RCA pin jack, output impedance 75Ω |
| Headphone output | 0~30 mW (32Ω), stereo mini jack |
| Power supply | 3-way — AC adaptor, Ni-Cd battery pack, car adaptor |
| Auto power off | Approximately 6 minutes after last operation |
| Power consumption | 4.2W DC (2 hours playback/recording using battery pack recharged for approx. 8 hours) |
| Dimensions | 243(W) × 158(D) × 45(H) mm |
| Weight | 1.4 kg (including Ni-Cd battery pack) |
| Accessories | AC adaptor AD-D6 (1), Connecting cords (2), Ni-Cd rechargeable battery pack NP-D2 (1), Carrying case (1) |
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