Grace Design M905 立体声控制器详细介绍

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Grace Design M905 立体声控制器详细介绍
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m905是Grace Design第二代的立体声监听控制器，内置了各种专业需求的输入和输出接口，包括模拟和数字，同时有异步USB输入来跟电脑做同步的24bit/192kHz回放。***多可连接3对监听音箱，2对低音炮和一个监听耳机。它的遥控部分很强大又很简介，包含了耳机输出、对讲话筒和独立的实时SPL表。m905主要特性：?模拟输入：非平衡、平衡、CUE和对讲话筒?数字输入：双AES 3、1个S/PDIF、1个TOSLINK、ADAT（4对立体声通道或SMUX模式双立体声通道）?异步的USB 2.0 USB接口，支持24bit/192kHz精度的回放?母带级别数字模拟转换器电路，带de-emphasis滤波?S-lock双段Phase Lock，极低的时钟时基偏移?LCD屏幕可显示输入、音量、输出、SPL和数字模拟转换器状态?通过内置的ECU话筒来显示的SPL表?耳机和监听音箱的音量调节精度为0.5dB?独立的单声道、衰减、静音、低音炮静音按钮?3个立体声监听输出接口，其中两个可接2.1  m905分主机和遥控器两个部分：（如下图）
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ANALOG I/O	5 G, {; f2 u: y: r
THD+N at Maximum Volume, 1kHz, 22Hz-22kHz BW
+20dBu out	<0.0008%
+10dBu out	<0.0008%
0dBu out	<0.002%
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Intermodulation Distortion SMTPE/DIN 4:1 50Hz, 7kHz
@+20dBu out	<0.002%
@ 0dBu out	<0.0015%
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Frequency Response	5 G# M8 U* h( Z5 p6 n& \
Balanced Inputs +/-3dB	3Hz to 1.25MHz
Unbalanced Input +/-3dB	3Hz to 275kHz
Dynamic Range
20-22kHz bandwidth	118dB
20-22kHz bandwidth and A weighting filter	121dB
Output Noise	4 G7 Z( Q+ D/ _. @
20-22kHz bandwidth, at -20dB gain	-99dBu
20-22kHz bandwidth and A weighting filter, at -20dB Gain	-102dBu
Phase Deviation	k+ w1 n. |  B  t% U) S4 [2 `; p
20Hz to 20kHz	<10 degrees
10Hz to 100kHz	< 19 degrees
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Crosstalk any channel
100Hz	<104dB
1kHz	<100dB
20kHz	<79dB
Balanced Input CMRR
60Hz	>90dB
1kHz	>85dB
10kHz	>70dB
Gain Range	-104dB to +13dB
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Channel Tracking Accuracy
Any channel	+/-0.1dB
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Maximum Output Level	+26dBu
Maximum Input Level
Balanced inputs	+29dBu
Unbalanced inputs	+21dBu
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Impedances
Balanced inputs	88k Ohms
Unbalanced inputs	53k Ohms
Balanced outputs	300 Ohms
Minimum load impedance	300 Ohms
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External Talkback Mic Preamp Gain	+7dB to +70dB in 1dB steps
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DIGITAL TO ANALOG CONVERTER FIXED OUTPUTS
Output Levels	( b4 p+ ~7 |7 Q/ W( m, M9 W* i7 B
User selectable (0dBFS)	-76dBu to +24dBu in 0.5dB steps
Fixed output trim range (0.5dB steps)
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THD+N
1kHz, -1dBFS, (0dBFS = +20dBu), 20-22kHz bandwidth	0.0006%
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Dynamic Range
20-22kHz bandwidth, 0dBFS = +20dBu (AES17 filter)	117dB
20-22kHz bandwidth, 0dBFS = +20dBu (A-weighted)	119dB
Input Lock Range
AES3/SPDIF	44.1kHz +/-400Hz 1 f% R$ F. s$ B48kHz +/-700Hz 5 t5 j9 D, s3 q2 P+ X* E88.2kHz +/-1200Hz 96kHz +/-1300Hz 3 x0 T9 r; J0 f% p( B176.4kHz +/-2000Hz 192kHz +/-2000Hz
TOSLINK	44.1kHz +/-400Hz 48kHz +/-700Hz ! ^/ @0 d' `$ S3 I1 J* d6 m88.2kHz +/-1200Hz 0 o5 `. }' t- }7 ~/ ?96kHz +/-1300Hz
ADAT LIGHTPIPE? 8 Channels at 44.1kHz and 48kHz 4 ?9 ?5 \) k# D5 K6 W4 Channels at 88.2kHz and 96kHz (s/mux)	44.1kHz +/-50Hz 48kHz +/-70Hz 88.2kHz +/-50Hz 96kHz +/-70Hz
USB Supported Sample Rates	44.1, 48, 88.2, 96, 176.4, 192kHz, DSD64 2.8224MHz, DSD128 5.6448MHz
s-Lock? Capture Range
44.1kHz	+/- 6Hz
48kHz	+/- 7Hz
88.2kHz	+/- 14Hz
96kHz	+/- 20Hz
176.4kHz	+/- 24Hz
192kHz	+/- 30Hz
Word Clock / Superclock Input
Impedance (switchable)	75 ohm / 1Meg ohm
Minimum Voltage	3V peak to peak
Maximum Voltage	5V peak to peak
Word clock frequencies supported	44.1, 48, 88.2, 96, 176.4, 192kHz
Superclock frequencies supported	N/A
POWER SUPPLY / GENERAL
Power consumption	60W
Input Voltage 50-60Hz	100VAC – 240VAC
Dimensions	3 g4 @  s& n1 B) `6 D
Main chassis IEC 2U	3.5" x 10.5" x 17"
Remote control unit	8.9" x 5.1" x 2.2"
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Weight	: e5 f% e) [. |$ C
Main chassis	7.8lbs
Remote control unit	2.2lbs

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Grace Design M905 立体声控制器详细介绍呵呵。