
The NAGRA-D II 4 channel 24 bit digital audio recorder evolved from the renowned NAGRA-D and provides the most stunning portable audio recording capabilities available for both music and cinema applications. With a resolution of 24 bits per sample, the internal A/D and D/A converters offer a working dynamic range in the field of more than 110 dB. The also allow the NAGRA-D II to record at sampling frequencies of up to 96 kHz (Stereo). A single wire or double wire AES format can also be sent to or received from the digital in/out connectors, independent of each other. This enables the NAGRA-D II to be totally compatible with current high sampling frequency standards, and lends itself perfectly to DVD and other high resolution formats.
While the advantages of such high resolution are obvious in music recording, the principal gain in film production is the enormous dynamic range. This enables a vastly larger range of sound levels to be authentically captured on location, allowing more production sound to be used than ever before. Not only does this increase in the use of production sound deliver a more realistic sound track, but more importantly, it saves in post-production costs. Connecting the NAGRA-D II to a PC by way of its serial port and running the NADCOM program (Operating under Windows), allows the user instant, permanent and unique access to the heart of the recorder. The NADCOM program provides information to the user not available on any other recorder in the world. Detailed data can be printed out and kept as a permanent historical account of a recording, and is updated each time the tape is played. Multiple windows can be opened simultaneously to monitor the levels, error correction, analog measurements, internal settings of the machine, and more.
MULTI-CHANNEL RECORDING For both music and film, real multi-channel recording is made possible by locking several machines together and taking advantage of the NAGRA-D II's ability to "sample sync" the tape transports. This feature ensures that the rotary heads of all of the machines are in perfect phase with each other, although they are spinning at 62 revolutions per second. The recording of identical time codes on each of the machines also guarantees perfect chase lock synchronization during post-production. The serial remote control port on the NAGRA-D II means that only the master machine needs be controlled, as the slave machines will automatically copy all the movements of the master.
| Along with dependability and Swiss engineering
quality, NAGRA recorders are renowned for their adaptability. While they
are as solid as a rock physically, they have always had the operational
flexibility to excel at every task they are called upon to
perform.
Everything about the NAGRA-D II reflects the proud Swiss tradition of engineering precision. The close tolerances of the scanner entry and exit guides as well as the highly polished precision head-drum, guarantee a format compatibility and perfect results in even the most demanding conditions. |
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Multiple channels make the NAGRA-D II one of the most adaptable tools for location recording available anywhere. By separating microphones onto discrete tracks, the sound engineer has a far greater flexibility.
The internal time code option not only offers all the features necessary for a location recorder, but includes all the additional elements required in post-production. The NAGRA-D II will perform full chase synchronizing functions for film post- production, plus chase-and-sample sync operations for multiple machine recordings. Of course it is compatible with all current SMPTE/EBU time code formats.
The longitudinal headblock that guarantees both perfect time code synchronization and analogue CUE track recording using the left head. Due to its construction, the reading of data even during fast wind is possible as the tape remains in contact with the time code head at all times. The scanner control track is recorded by the right head, which is only used when the tape is at nominal speed.
Customization is possible using a system of different "menus". The internal software of the NAGRA-D II can be personalized / customized and adapted according to the requirements of the specific user, depending on the particular application in hand. Different set-up configurations can also be stored in memory for immediate access at any time.
| INTERNAL OPTIONS | EXTERNAL OPTIONS |
| ND-VCLO | Variable sync input (for slow down 30fps to 29.97fps) | ND-SNCW | Software "NADCOM" for Windows 95 and NT |
| ND-422S | Sony RS 422 serial remote control protocol | ND-SET-2 | Large Lid for 7" reels for NAGRA-D II |
| ND-HSF | High sampling frequency | ND-LIA | Line input attenuator |
| ND-AP | Internal Auto-power circuit for external DC from 11V to 14V with ND-APC power input cable | ND-PP | Potentiometer protection bar |
| ND-IL-2 | Line input circuit | ||
| ND-24B | Kit AD/DA converters and AES 24/96 option for NAGRA-D | ||
| ND-TC | SMPTE/EBU time code and chase synchronizer | ||
| ND-JA | Instrumentation option for NAGRA-D / D II |
|
INTERNAL ACCESSORIES | |
|
ND-BP |
Battery pack BP-90 NI/CAD (5Ah 12V) |
EXTERNAL ACCESSORIES
| ND-EPC | External DC/DC power converter for external supply of 11V to 30V DC | ND-TT | Calibration tape for NAGRA-D |
| ND-CM | Commentary microphone for the CUE track | BOBA-13 | Ampex plastic take up reel (5") |
| ND-PCA | Adapter RS232 (PC) / RS422 (N-D) for serial PC connection for the operation of the NADCOM software | BOB-18 | Plastic take up reel (7") |
| ND-MT | Menu tree (Plastified) | ND-SCC | Soft carrying case |
| ND-CCC3 | Current control charger with power cable |
|
CABLES | |
|
ND-APC |
Auto-power cable |
|
ND-RSC |
Cable RS422 crossed for Mirror Copy |
| ND-SSC | Cable, Sample Sync for locking 2 Nagra-Ds |
|
QCTC |
TC Cable Lemo male - Lemo male 1.5 m |
|
QCTCU |
TC Cable Lemo male - Lemo male to open end 1.5 m |
|
CXLR-FM |
3-pin XLR Cable male - female 1.5 m |
|
ECXLR-FM |
3-pin XLR Cable male - female 10 m |
|
TAPE FORMAT/TRANSPORT | |
| Recording system | Rotary head and longitudinal CUE and TC tracks |
| Monitoring | Read after write |
| Tape type | 1/4" (6.35mm) Digital tape |
| Tape speed | 99.2 mm/s for 4 channels at 48 kHz
or 2 channels at 96 kHz 49.6 mm/s for 2 channels at 48 kHz |
| Recording time | 5" reel (346m) 2 Ch = 2
hr. 4 Ch = 1 hr. 7" reel (692m) 2 Ch = 4 hr. 4 Ch = 2 hr. |
| Variable speed | +/- 10% |
| Search possibilities | Using longitudinal analog CUE track and SMPTE Time Code |
| Start up time | From "READY" to "REC" less than 2 sec. |
| Winding speed | Up to 4m/sec (90 sec for 5" reel) |
|
AUDIO PERFORMANCE | |
| No. of channels | 2 or 4 |
| Sampling frequencies | 32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz, and 96 kHz |
| Analog IN/OUT | 24 bits |
| Signal/noise ratio | Better than 110 dB |
| Frequency response | 20 Hz to 20 kHz +/- 0.5 dB (48 kHz sampling frequency) |
| Total harmonic distortion | Less than 0.05% |
| Wow and flutter | Below measurable limits |
| Channel separation | 80 dB |
| Digital IN/OUT | 24 bits (AES) |
| Error correction | Reed Solomon (38, 34, 5) (12, 9, 4) |
|
INPUTS/OUTPUTS | |
| Analog inputs | Switchable Microphone or Line |
| Microphone | 4 XLR (switchable 12V "T" power, Phantom +48V |
| Line | Symmetrical, transformerless (Z in > 8k ohms) |
| Analog outputs | Symmetrical, transformerless on XLR
connectors 3.1 V max, (Z out = 50 ohms) |
| Digital I/O | AES standard mode for sampling
frequencies up to 48 kHz Double or single wire at sampling frequencies above 48 kHz |
| Time code I/O | SMPTE/EBU symmetrical (balanced) |
| External sync | PAL / SECAM / NTSC / EXT / AES / TC |
| Serial communication | RS 422 9 pin |
| Headphone outputs | 2 x Stereo with level adjustment (1.45V @ 0 dB no-load) |
|
GENERAL | |
| Power requirements | Internal battery pack |
| Battery type | BP-90 (5 Ah 12 V) |
| Autonomy | 1h 45 min |
| Power consumption | STOP = 24 W REC = 29 W |
| External dimensions | 13 1/16 x 13 21/32 x 5 5/8"
(LxWxH) (332 x 347 s 143mm) |
| Weight (batt incl) | 18.7 lbs (8.5 kg) |