HD-R1 è un registratore/riproduttore stereo a stato solido a una singola unità rack, studiato ad hoc per gli installatori. Grazie all’utilizzo di una card Compact Flash, l’HD-R1 può registrare alle frequenze di campionamento di 44,1 oppure 96 kHz con una risoluzione di 16 o 24 bit in formato PCM o in formato MP3. È possibile controllare in remoto l’unità HD-R1 tramite RS-232, porta parallela e porta RJ45 Ethernet a 100 Mbit. Il trasferimento di file è possibile via Ethernet e/o USB (connettore tipo “A”).

Per migliorare ulteriormente le caratteristiche dell’HD-R1, sono stati inclusi preamplificatori microfonici con pad di attenuazione di 20 dB e Phantom Power (selezionabile sul retro). L’HD-R1 offre una varietà di connessioni I/O per l’installatore, come prese sbilanciate RCA, prese bilanciate XLR, terminali Euroblock, prese digitali S/PDIF sia coassiali che ottiche. Sul pannello frontale sono presenti i controlli rotativi per regolare i livelli di ingresso e l’uscita per cuffia.

Fra le varie funzioni e modalità di riproduzione, non manca l’opzione Power-On Play, che consente la riproduzione automatica dei file all’accensione dell’unità.

Caratteristiche principali

Specifiche tecniche

General
Recording Media		Type I and Type II Compact Flash media
File Systems		FAT16 and FAT32
File Formats		Broadcast Wave (WAV) and MPEG 1 Audio Layer 3 (MP3) files)
Recording Time		6 hours 40 minutes (4 GB Compact Flash Card, 44.1 kHz, 16-bit stereo, WAV) about 70 hours (4 GB Compact Flash Card, 44.1 kHz, 16-bit stereo, MP3 128 kb/s)
Sampling Rates		44,1 kHz, 48 kHz, 88,2 kHz, 96 kHz The sampling rate for MP3s is 44.1 or 48 kHz.
Quantization		16 or 24 bits
MP3 Bit Rates		Stereo 64/80/96/112/128/160/192/224/256/320 kb/s Mono 32/40/64/80/96/112/128/160 kb/s Variable Bit Rate (VBR) files can be played but not recorded.
Pre-record buffer		Up to 20 seconds (at 44.1 kHz)

Audio Performance
Frequency response, nominal level (MIC to LINE OUT)		20 Hz to 20 kHz ±1.0 dB (44.1 kHz / 48 kHz) 20 Hz to 40 kHz +0.5 dB / –4 dB (88.2 kHz / 96 kHz)
Noise level at maximum trim (MIC to LINE OUT)		< –55 dBu (22 Hz to 22 kHz, 150 Ohm input termination)
Dynamic range at minimum trim (MIC to LINE OUT)		105 dB(A) (44.1 kHz, 22 kHz LPF)
Total harmonic distortion + noise (MIC to LINE OUT)		<0.01 % (min trim, 22 kHz LPF, 1 kHz tone)
Crosstalk at 1 kHz (MIC to LINE OUT)		> 80 dB (150 Ohm input termination)
Delay		44.1 kHz < 0.6 ms 96 kHz < 0.6 ms

Analogue audio inputs and outputs
Microphone/Line input		XLR-3-31 (1 = ground, 2 = hot, 3 = cold (–))
Impedance		2.4 kOhm
Nominal level		–63.8 dBu (max trim) to –7.78 dBu (min trim)
Nominal level with pad		–43.8 dBu (max trim) to +12.2 dBu (min trim)
Maximum level		+28.2 dBu
Maximum gain		56 dB
Phantom Power		2 x +48 V, 10 mA
Line Input		RCA
Impedance		10 kOhm
Nominal level		–66.0 dBV (max trim) to –10 dBV (min trim)
Maximum level		+6 dBV
Maximum gain		56 dB
Balanced Line output		XLR-3-32 (1 = ground, 2 = hot (+), 3 = cold (–))
Impedance		100 Ohm
Operating Level (adjustable)		+4 dBu nominal / +24 dBu maximum +4 dBu nominal / +22 dBu maximum +4 dBu nominal / +20 dBu maximum +4 dBu nominal / +18 dBu maximum +6 dBu nominal / +15 dBu maximum
Unbalanced Line output		RCA
Impedance		100 Ohm
Operating Level (adjustable)		–10 dBV nominal / +10 dBV maximum –10 dBV nominal / +8 dBV maximum –10 dBV nominal / +6 dBu maximum –10 dBV nominal / +4 dBu maximum –8 dBV nominal / +1 dBu maximum
Headphones Output		6.3-mm phone jack (tip = left, ring = right, sleeve = ground)
Minimum load impedance		32 Ohm
Maximum level		+4.7 dBu (at 1% distortion)
Maximum power		50 mW + 50 mW

Digital audio inputs and outputs
Digital input and output		Coaxial RCA phono jack)
Impedance		75 Ohm
Format		SPDIF (IEC 60958-2)
Quantization		16-bit or 24-bit

Other connectors
RS-232C		9-pin D-sub (female)
Clearance		Accepts D-sub plugs with housings < 15mm high
Data rate		9600 bps
Parallel control port		25-pin D-sub (female)
Clearance		Accepts D-sub plugs with housings < 15mm high
Input level		0 V to 3.3 V (logic low < 0.8 V, logic high > 2.0 V) Inputs have internal pull-ups and can be activated by shorting to ground.
Busy current loop rating		60 V DC (relay open), 1.5 A DC (relay closed)
LAN		RJ45
Data rate		10/100 Mbps
Format		100Base-TX (IEEE 802.3)
USB		USB A-type 4-pin
Format		USB 2.0

Power supply and other specifications
Mains power		100 VAC, 50/60 Hz 120 VAC, 60Hz 230 VAC, 50Hz 240 VAC, 50Hz
In-rush current		700 mA
Power consumption		10 W
Display		192 x 32 pixel, white LED backlight
Operating Temperature		5ºC to 35ºC
Dimensions (W x H x D)		483 x 280 x 44 mm (fits in a 1U 19” rack space)
Weight		3.2 kg

Design e caratteristiche possono variare senza preavviso.

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