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Tascam DA-78HR
24-bit Digital Multitrack Recorder
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The TASCAM DA-78HR is the first 24-bit DTRS format 8-track Modular Multitrack Recorder, designed primarily for professional recording studios, project studios and home recording studios where 24-bit high quality digital audio recording is essential. It is an evolution of the TASCAM DA-38 which, for the first time in recording history, offered project studios affordable access to a professional industry-standard recording format.
The DA-78HR is however, considerably more than a 24-bit upgrade. A major advance is on-board digital mixing of its 8 tracks to stereo with level and pan control, routed to a dedicated SPDIF I/O. An internal electronic patchbay for both inputs and outputs and an on-tape data memory for set-up information including locate points are highlights of the many operational enhancements. The DA-78HR is backward compatible with all existing DTRS recordings to integrate seamlessly into existing installations.
The DA-78HR provides the best and the certainly the most cost-effective solution for 24-bit digital audio recording. Designed to take digital multitrack recording into the next millennium, the DA-78HR is one of the finest digital multitracks ever.
Main features
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 Selectable 24-bit or 16-bit recording format
44.1/48 kHz sampling frequency
Backwards compatible with existing DTRS recordings
Synchronization of up to 16 units (with DA-38, DA-88 and DA-98)
24-bit, 128 times over-sampling
Delta/Sigma A/D and D/A converters
MIDI In/Out/Thru
Supports MMC
Time code in/out with on-board SMPTE synchronize
D-sub 25-pin balanced and RCA unbalanced analogue audio I/O
TDIF digital audio interface
SPDIF digital audio I/O
Word sync IN/OUT/THRU
On-board 2-track mix function
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Machine offset in sub-frame or sample rate accuracy
Auto punch I/O in 0.1 frame accuracy
Advanced internal electronic patchbay
Set-up memory stored to tape
Digital direct-track copying within a unit or between two units
Shuttle wheel
Track delay function
±6%
pitch control
Seamless punch I/O with digital cross fade
Adjustable peak hold and release time level meter
Built-in digital tone oscillator
A/B head playback error rate-display function
3U rack-mountable
®DTRS is a Trademark of TEAC Corporation
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Specifications
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Recorder and Audio
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Recording format
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DTRS/DTRS-HR format
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Recording method
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Rotary-head, helical-scan
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Tape
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Hi-8MP or Hi-8ME
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Heads
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2 x recording, 2 x playback
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Tracking system
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ATF (Automatic Track Finding)
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Erasure system
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Overwrite
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Drum speed
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2000 RPM
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Tape speed
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15.955 mm/sec.
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Equivalent tape speed
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4.2 m/sec.
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Maximum recording time
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108 min. (using P6-120 tape)
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Time from Stop to Play
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<2 sec.
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Fast winding time
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80 sec. (using P6-120 tape)
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Search speed
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100-times play speed max.
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Shuttle speed
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Forward and reverse at 8, 4, 2, 1, 0.5 and 0.25 times play speed
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Pitch control
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±6% (in 0.1% steps)
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Positioning accuracy
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within 1 sample
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Positioning lock time
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within 8 sec. (2 DA-78HR synced together)
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Number of recording tracks
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8
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Subcode
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ABS track, SMPTE/EBU timecode
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Error correction
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Double-encoded Reed-Solomon code
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Sampling frequency
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44.1 kHz, 48 kHz
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Quantisation
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16-bit, 24-bit linear (DTRS/DTRS-HR)
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Reference level
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16 dB
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Cross-fade time
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10 ms to 200 ms (in 10 ms steps)
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Track delay (switchable samples/ms)
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-200 to 7200 samples (in 1 sample steps)
-4 to +150 ms (in 1 ms steps)
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Offset
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ABS sync: ±2 hours
(in sub-frame or sample accuracy)
Timecode sync: ±12 hours (in sub-frame accuracy)
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Sync clock source
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Internal, Word In or Coaxial In
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A/D converter
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24-bit, 128-times Delta/Sigma over-sampling (switchable dither)
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D/A converter
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24-bit, 128-times Delta/Sigma over-sampling
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Supported timecode formats
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30 drop, 30 non-drop,
29.97 drop, 29.97 non-drop, 25 and 24 fps
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Frequency response
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20 Hz – 20 kHz, ±0.5
dB
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Signal-to-noise ratio
(Fs = 48 kHz, 22k LPF, A-weighted)
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>104 dB (DTRS-HR)
>100 dB (DTRS)
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Dynamic range
(Fs = 48 kHz, 22k LPF, A-weighted)
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> 104 dB (DTRS-HR)
>95 dB (DTRS)
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Total harmonic distortion
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<0.004% (DTRS-HR)
<0.005% (DTRS)
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Channel separation
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>90 dB at 1
kHz
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Wow and flutter
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unmeasurable
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Analogue inputs and outputs
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Analogue inputs (balanced)
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25-pin D-sub, female
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| Nominal level |
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+4 dBu |
| Nominal
impedance |
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20 kOhm |
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Analogue inputs (unbalanced)
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8 x RCA
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| Nominal
level |
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-10 dBV |
| Nominal impedance |
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10 kOhm |
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Analogue outputs (balanced)
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D-sub, 25-pin, female
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| Nominal level |
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+4 dBu |
| Nominal
impedance |
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10 kOhm
(loaded) |
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Analogue outputs (unbalanced)
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8 x RCA
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| Nominal level |
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-10 dBV |
| Nominal impedance |
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250 Ohm |
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Digital inputs and outputs
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TDIF (unbalanced)
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D-sub, 25-pin, female
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AES/EBU, SPDIF (coaxial, unbalanced)
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RCA
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Sync and other terminals
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Remote In/Sync In
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D-sub, 15-pin, female
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Sync
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D-sub, 15-pin, female
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Word-Sync-Out
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BNC, 75 Ohm at TTL level
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Timecode input
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RCA
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| Nominal
impedance |
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10 kOhm |
| Nominal
level |
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0.5 Vp-p to 10.0 Vp-p |
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Timecode output
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RCA
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| Nominal
impedance |
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100 Ohm |
| Nominal
level |
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2,0 Vp-p |
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MIDI
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In, Out, Thru (conforms to MIDI standard)
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Remote control connector
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8-pin DIN (for RC-808)
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Remote punch in/out
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6.3 mm mono jack (for optional foot switch RC-30P)
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Power supply and other specifications
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Power supply
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230 VAC, 50 Hz
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Power consumption
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34 W
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Overall dimensions (W x H x D)
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482 mm x 143 mm x 350 mm
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Weight
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8.1 kg
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Design and specifications subject to change without notice.
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