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产品介绍
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The Sonamp 875D MKII utilizes four highly-ef?cient Bang & Olufsen ICEpower® digital ampli?ers that provide 65 watts RMS per channel @ 8 ohms x 8 Channels in a 2U high package with very little heat generation. The Sonamp 875D MKII incorporates BBE sound enhancement, improving the sound quality of your music at lower listening levels. BBE also restores clarity and de?nition to spoken voices, which makes paging systems easier to understand without having to run them at high volumes.
Multiple audio input connections (Direct, L/R & Aux) and buffered line outputs make your 875D MKII extremely ? exible, so you can connect the ampli?er in a variety of ways depending on your particular system’s con?guration. Recessed front-panel controls are tamper-resistant and let you adjust each channel’s input level and each zone’s auto-on sensitivity. The 875D MKII’s RS-232 connection lets you use a variety of third-party serial control systems to control almost all of the 875D MKII’s functions, including mute, volume, on/off and BBE per zone or for the whole amp. It also lets you monitor the ampli?er’s operation from a remote location. Each zone has its own 12V input and output triggers and defeatable auto-on signal sensing that help maximize power management for the channel con?guration in use at any time.Specifications
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Number of channels：
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8 (four stereo pairs)
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Power Output：
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65 watts RMS per channel (X8) @ 8 ohms
120 watts per channel (X8) @ 4 ohms
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>Power Output (Bridged)：
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250 watts per channel (X4) @ 8 ohms
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Frequency Response：
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20Hz – 20kHz, ±1dB (hi-pass filter OFF); -3dB @ 27Hz (hi-pass filter ON)
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Total Harmonic Distortion：
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0.10% (1kHz, 8 ohms)
0.25% (1kHz, 4 ohms)
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Signal to Noise Ratio：
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-96dB (w/22kHz A-WTG filter)
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Input Sensitivity：
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1.0V for 65W RMS @ 8 ohms
850 mV w/BBE ON (+3dB)
650 mV w/BBE ON (+6dB)
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Input Impedance：
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10k ohms
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Max Source Input Voltage：
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4.0 VAC RMS
3.0V AC RMS w/BBE ON
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Loop Output Impedance (Buffered)：
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100 ohms
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Serial Protocol (RS-232 Connection)：
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9600 Baud, N, 8, 1, single CR
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Power Consumption：
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1,200 watts maximum (4 ohms, full power)
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AC Fuse (120V Version)：
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10A (T10AL ~ 250V)
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6AC Fuse (230V Version)：
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6.3A (T6.3AL ~ 250V)
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6Heat Output：
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288 BTU/hour (8 ohms, rock music); 553 BTU/hour (4ohms, rock music)
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Dimensions (WxHxD)：
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16 1/2” x 3 1/2” x 17 1/4”
(419mm x 98mm x 438mm)
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Dimensions w/ Rack Ears (W x H x D)：
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19” x 3 1/2” x 17 1/4”
(483mm x 98mm x 438mm)
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Rack Space Requirements：
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2U (rack-mount ears included)
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Shipping Weight：
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24 lbs (10.9kg)
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关于SONANCE
In 1982, Sonance co-founders Scott Struthers and Geoff Spencer asked their client to point to the precise spot on the kitchen wall where she’d like her speakers placed. And with a single swing of a hammer, shock waves went through the audio and architectural industries that reverberate to this day. At that moment, what the founders of Sonance had created was literally a breakthrough.
The relationship between architecture and audio would be forever altered.
Sonance did something that no one in the audio industry had done before: move the loudspeakers off the floor, off the shelf, and into the wall. Suddenly the placement of speakers was limitless, with both the walls and ceiling of any room in the home now part of the blank canvas open to the architect and designer. With Sonance, speakers could be less obtrusive, but no less acoustically precise. With Sonance, speakers could make sound an element of design, like light, form, and color.
That creative freedom, that power to see architecture and audio blending in new ways, is what Sonance has always offered the design community and its clients. At the same time, Sonance has continued to innovate, leading the industry to solutions that designers, custom installers and design-sensitive audiophiles recognize as truly breakthrough.
CEDIA Lifetime Achievement Award
Credited with inventing the in-wall speaker and for recognition of his achievements and his contributions to the custom install industry, CEDIA awarded Scott Struthers the 2002 Lifetime Achievement Award.