Nagra D-II

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.

Rullo Testine

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.

For more advancements in the Nagra-D, please review the articles under Nagra News.

OPTIONS & ACCESSORIES

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 

 


SPECIFICATIONS

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)

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