NAGRA EMP 2-channel Microphone Preamplifier, 16 bit recorder

NAGRA EMP 2-channel Microphone Preamplifier, 16 bit recorder

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Model: [NAEMP]
Manutacturer: NAGRA

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Rated 3.74/5 (35 Votes)

Portable self-contained 2-channel microphone preamplifier for use with the NAGRA VI, other recorders or instandalone operation. 

The front panel, chassis and features were designed using the experience of previous NAGRA recorders and render the Nagra EMP very user-friendly and comfortable to operate even in harsh environmental conditions. Using its intenal 4 AA cells, it has a running time of approximately 4 hours. It is equipped with a Hirose connector allowing external power to be supplied from the NAGRA VI, or another (external) dc supply.
The Nagra EMP has two analogue inputs on XLR connectors on the rear panel, equipped with NAGRA manufactured transformers offering an improvement of +6 dB in the noise floor when set to the 2 mV/Pa (for dynamic microphones) position. These transformers are bypassed when using condenser microphones (10 and 30 mV/pa sensitivity positions)
Gangable audio limiters, a low cut filter and a powerful Vortex filter considerably improve recordings made in windy conditions.
In addition an internal 2-track flash based solid-state 16-bit digital audio back-up is built-in. Equipped with an internal 2 GB security back-up buffer, offering about 3 hours of recording that can be downloaded to a PC through the USB port.
Technical Specifications
Analog Inputs 2 x symmetrical XLR Microphone (Dynamic, +48V phantom)
Mic. Input sensitivity 2.8, 10 and 30 mV/Pa selectable
Limiters Selectable on inputs, individual or ganged. Active at -9.5 dBFS, Max +40dB for -2 dBFS
THD @ 1 kHz
< 0.15 % Mic
Frequency response 10 Hz - 48 kHz ± 0.5dB
Input noise with condenser mic 0.88 µV (-119 dBm)
Noise figure 4 dB (Measured ASA "A" weighted loaded 200Ω
Signal-to-noise retio >114 dB
Input level adjustment range 50 dB Mic
Input filters LFA (With vortex filtering), Low cut
Headphone 6.5 mm stereo Jack connector
Line Output 2 x XLR 4.4V max, selectable 0 dBm, +6 dBm or +16 dBm
File type PCM BWF or MPEG1 layer II 16 bits, 32 kHz to 48 kHz Mono / Stereo
Memory size 2 GB (Corresponds to 2h 53mins of PCM 48 kHz stereo
Power supply
Internal batteries
4 x “AA” cells
Battery consumption
Approximately 2.6W (2 x phantom +48V, recording)
 Approximately 1.5W at 6V (No phantom, No recording)

Battery autonomy
Approximately 2 hours (2 phantom, recording)
Approximately 4 hours (No phantom, No recording)
External power 4 pin Hirose (9 to 13V, 3.5W)
External consumption Approximately 2.8W (2 phantom, recording)
Dimensions 190 x 50 x 175 mm (7.5 x 2 x 6.9")
Weight 1 kG (2.2 lbs) Including batteries
Relative humidity From 10% to 99% non-condensing