Aws4 request&x amz signedheaders=host&x amz signature=134cabe342bc72dc76e9cc340ba98be3d75e91f22585621973543a3b96d185e0

Nagra Audio VI

Oscar and Emmy Winning Eight-Track Digital Recorder

Free Tech Support


Aws4 request&x amz signedheaders=host&x amz signature=77a2314f2806261e56289db2c2830948912562fe4cc20ea0ba8f3255ac27d549
Aws4 request&x amz signedheaders=host&x amz signature=a03b8cc9f07108f2fe0306e47b4f96986254296a113fded6f082ff9af1fe1e42
Aws4 request&x amz signedheaders=host&x amz signature=ea92d8a1dceb3066db4b2067868b451a18cb3fb2b6fcb187b5ce3539405101af


The NAGRA VI has been designed as the natural successor to the NAGRA-D / DII multi-track digital recorders. Based on a totally new design concept, the hardware of the NAGRA VI is software dependent and can be adapted simply through software.

The NAGRA VI is an 8 channel digital recorder, offering 24 bit word-length and sampling frequencies from 32 kHz up to 192 kHz. There are 6 analogue inputs, 4 of which are equipped with traditional high-quality Nagra microphone preamplifiers. There are also 2 AES inputs. It is fitted with a full SMPTE/EBU time code system including a chase synchronizer. Internal programmable digital filters and monitoring for Ambisonic microphones are included as standard.

Available in a choice of three colours ("Slate" grey, "Midnight" blue and "Burgundy" red) allowing owners of two or more recorders easily identify a particular unit. The NAGRA VI is supplied with two plastic "handles" which serve to protect the front of the unit from accidental damage, but can also be used to carry the recorder. A carrying case, shoulder strap are also supplied for over-the-shoulder operation. The NAGRA VI is delivered with a removable battery box containing a lithium-ion battery pack, a mains power supply and is equipped with a 120GB internal hard disk.

Audio Inputs

It offers six independent analogue audio inputs. Inputs 1 - 4 are equipped with traditional NAGRA microphone pre-amplifiers for dynamic and phantom +48V microphones and menu selectable sensitivity for different microphone types. These pre-amplifiers are a combination of those developed for the NAGRA V and NAGRA-D and are without doubt the best audio inputs NAGRA has ever designed. An audio limiter can be selected for each of these inputs and these can be ganged in pairs if desired. These totally new concept input circuits offer the best specifications ever produced by any NAGRA in terms of pure audio quality. The four "In-house" transformers offer fully floating inputs for the dynamic microphones, giving a greatly improved signal-to-noise ratio. The remaining two analogue inputs are LINE level inputs for connection to other equipment supplying a line level signal, such as radio receivers. When set to the LINE position all 6 analogue inputs will accept up to +24dB. The two input connections (channels 5 + 6) double up as 2 AES inputs (A and B) when selected to digital input mode. A total of 8 channels can be recorded; 6 audio inputs + a two channel mix, or 8 inputs assuming both AES inputs are used for 4 digital inputs.

Zipper Noise Suppression

The NAGRA VI does not use traditional logarithmic potentiometers for the audio levels as were traditionally used on previous Nagra models. Today digital “encoders” are preferable because they do not suffer from “crackling” noise problems, and can be programmed to fulfill a multitude of different operations depending on the software program controlling them. Equally, even the graduation of the sweep is software calculated and can be altered relatively easily, rather than being created by the precision winding of the internal coils during manufacturing. However, such encoders normally suffer from a phenomena known as the “Zipper” noise. The NAGRA VI benefits from a complex development in a suppression system used on every level control of the recorder. The end-result is that the potentiometers can be moved instantaneously and no digital zipper effect can be heard.

The potentiometers on the Nagra VI behave in exactly the same manner as the traditional logarithmic potentiometers used in Nagra analogue recorders but with the advantage of the precision offered by digitally controlled encoder devices, and hence an increase the perfection of all recordings.

Recording Medium and Format

The NAGRA VI records to a 120GB internal 2.5" hard disk. An extractable compact Flash card is used to record a copy of the audio tracks depending on the users track selections. The NAGRA VI allows approximately 15 minutes of 8-track 48 kHz 24-bit recording per GB of available disk / card space. The compact flash card section is equipped with a "Hot-Swap" possibility meaning that the CF card can be removed and replaced while the NAGRA-VI is powered up, without causing any damage to the card or the recorder. The NAGRA VI records using Broadcast Wave File (BWF) format and is iXML compatible for the metadata making the files compatible with all modern post-production equipment.

Colour Display

The NAGRA VI is equipped with a sunlight-readable 3.5" colour TFT display with a resolution of 320 x 200 pixels. This specially designed high luminosity display is used to visually indicate not only the status of the NAGRA VI but also the bar graph modulometers, take number, time code and the current operating modes of the machine. When in the menu mode, the audio levels can be monitored using the LEDs on the front panel. A choice of user selectable screens can be displayed in the Test and Record positions, including the modulometers ONLY, according to the operators desire.

Channel Mixing

The Nagra VI has the possibility to mix the audio from the 6 analogue inputs to a stereo mix on channels 7 + 8 The output of the mixer can be set to both mono or stereo. Each microphone input level and L / R pan can be controlled using the arrow keys giving versatile mixing facilities. The mix channels can be recorded to the CF card in the copy process, as well as being recorded to the internal drive in the normal manner. If channels 7 + 8 are not being used for the mix, then all 8 inputs can be used for recording (using both digital inputs). Mixing to the audio outputs during playback is also possible.

Media Verification

The Nagra VI is equipped with a powerful routine to verify the read and write speed permitted by the different media (internal drive, CF card and USB drives). Certain "clone" or "fake" CF cards are available on the internet and the NAGRA VI allows the user not only to verify the digital id of the CF cards but also to check the read/write capacity of these media. Poor quality, low cost cards can cause severe problems when trying to write high bit rate linear PCM audio in real time.

File Backup

The NAGRA VI is equipped with two high speed USB 2.0 ports. One is designed to connect the NAGRA VI to a computer for file transfer. The second is a "host" connection and is used for connection of an external drive (USB key, external hard disk, DVD-RAM burner) or an external device such as a USB keyboard.


The NAGRA VI can store up to six internal templates containing all the user selectable settings and parameters of the recorder. These can be individually named and recalled at any time to rapidly change the settings of the machine depending on the desired operating situation. Templates may also be stored on an external media (6 per media) as text files and can be edited using a simple text editor such as Notepad. This system allows the creation and use of partial templates if desired.


The internal time code system and all the internal digital electronics of the NAGRA VI are clocked by a crystal which is a "Stratum III" TCXO which has been artificially aged in an oven to maintain stability. This crystal gives a guaranteed overall stability better than ±4.6ppm over a period of 15 years throughout a temperature range from -20°C to +70°C. The drift due to temperature changes is less than 0.28ppm. This is the most accurate crystal ever used in an NAGRA recorder. The NAGRA VI will handle all the standard SMPTE / EBU frame rates as well as the 23.976fps rate for the HD format. All the frame rates can be pulled "up/down" for the NTSC markets.

The internal chase synchronizer allows the NAGRA VI to follow any external time code signal for post production synchronization purposes.


Data storage medium120 GB Internal hard disk
Removable mediaCompact Flash type I / II (Hot Swappable)
Disk formatFAT 32
Recording MethodLinear digital PCM
File type16 / 24 bit Broadcast Wave File BWF (WAV) with iXML, AES 31 compatible
A/D & D/A conversion24 Bit Sigma Delta
Tracks8 individual
Sampling Rate44.1, 48 kHz, 88.2, 96, 176.4 and 192 kHz (with 0.1% pull up / down)
Recording capacity15 mins of 8 track 24 bit 48 kHz per GB of disk / memory
Pre-recording bufferUp to 20 seconds @ 48 kHz 24-bit on 8 tracks Max 10 seconds @ 96 kHz 24-bit 48kHz 24-bit on 8 tracks
Display3.5 inch colour TFT LCD
Level metersOn colour display AND by LED for microphone inputs
Digital inputs2 x XLR AES-3 shared with analogue inputs 5+6
Analogue inputs4 x symmetrical XLR Microphone (Dynamic, +48V Phantom) / line
Microphone input sensitivity2.8, 10 and 30 mV/Pa selectable
LimitersSelectable on microphone inputs, individual or in pairs. Active at -8dBFS, max +36dB for -2 dBFS
Line input sensitivityAdjustable from -6 dBm up to +24 dBm for 0 dBFS recording
THD at 1 kHz
Frequency responseMic, 10Hz - 48 kHz ± 0.5 dB, Line ±0.2 dB (measured on AES out)
Input noise with condenser mic0.88 µV (-119 dBm)
Input noise with dynamic mic4 dB (measured ASA "A" loaded 200Ω
Signal-to-noise ratio>114 dB
Input level adjustment range50 dB Mic and from -6 to +24 dB Line
Input filtersLFA (with vortex filtering)
Slate microphoneElectret behind the front panel
Analogue line output2 x XLR 4.4V max (+15 dBm)
Digital outputXLR AES-3 (24 bit or 16 bit dithered)
Headphones2 x Stereo 6.3mm (¼”) Jack 50 Ω
Internal speaker1W
USB HostUSB 2.0 connector type "A"
USB DeviceUSB 2.0 connector type "B"
Time code IN/OUT5 pin LEMO (SMPTE / EBU)
M/S DecoderSwitchable
Word Clock9-pole "D" type connector (In / Out)
DitherMenu selectable 24/16bits on Inputs and/or Outputs

Related Products

Aws4 request&x amz signedheaders=host&x amz signature=653a972cd2da7916e3d27fd8d73cf81eb2c75ab3d6a9d9eddb1cedc5c686c567
Aws4 request&x amz signedheaders=host&x amz signature=c0b1f52466d728b8d03006cb216569c181c163848042dcd245dea71e183b789f

Nagra Audio VI


More Info