Nagra D open-reel digital recorder Specifications

Sidebar 1: Specifications

Description: Open-reel, computer-controlled, 4- or 2-channel, 24-bit, rotary-head digital recorder with: four balanced analog inputs (each switchable between transformerless line and phantom-powered microphone); four balanced, transformerless outputs; two pairs of stereo headphone outputs; two pairs of AES/EBU digital inputs; two pairs of AES/EBU digital outputs; external sync input; time-code input and output; and 9-pin RS-422 computer-control port. Scanner rotational speed: 3750rpm. Tape type: ¼" (6.35mm) digital tape (Ampex 467 or equivalent). Tape speed: 49.6mm/s (approximately 2ips, 2 channels); 99mm/s (approximately 4ips, 4 channels). Variable speed: ±10%. Maximum recording time: 60 minutes (5" reel, 4 channels); 120 minutes (5" reel, 2 channels; 7" reel, 4 channels); 240 minutes (7" reel, 2 channels). Error correction code: Reed-Solomon (38,34,5) (12,9,4). Sampling frequencies: 32kHz, 44.1kHz, 48kHz. ADC quantization: 20 bits. S/N ratio: better than 98dB. Frequency response: 20Hz-20kHz ±0.5dB (48kHz sampling). Line input overload: 3dB without optional attenuators. Input impedance: greater than 8k ohms (line). Output impedance: 50 ohms. Channel separation: 80dB. Power requirement: internal Betacam (4.5Ah, 12V) battery pack. Power consumption: 24W (Stop); 29W (Record). Battery life: 105 minutes.
Accessories: ND-EPC battery charger/power supply, ND-SET 7"-reel cover, ND-LIA line-input attenuator, ND-PCA RS-422/RS-232 adaptor, NADCOM v.1.8 control software (runs on a 286-or-better PC under MS-DOS), ND-CM cue microphone.
Dimensions: 13.65" (347mm) W by 5.62" (143mm) H by 13.1" (332mm) D. Weight: 18.7 lbs (8.5kg).
Serial numbers of units reviewed: 1000308, '212, '121, '429.
Price: typically $25,000, depending on options. Approximate number of dealers: 8.
Manufacturer: Kudelski S.A., Route de Genève 22, 1033 Cheseaux, Switzerland. Tel: (21) 732-0101. Fax: (21) 732-0100. US Distributor: Nagra USA, 240 Great Circle Road #326, Nashville, TN 37228. Tel: (615) 726-5191. Fax: (615) 726-5189. Website:

240 Great Circle Road #326
Nashville, TN 37228
(615) 726-5191