Advertisement
This lighting flash with arrowhead symbol, within an equilateral triangle, is intended to alert the use to the presence of un-insulated dangerous voltage within the products enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. | This lighting flash with arrowhead symbol, within an equilateral triangle, is intended to alert the use to the presence of un-insulated dangerous voltage within the products enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. | The exclamation point within the equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying suppliance. |
The OSD Audio MX Series Multi-Zone Amplifiers are ideal for adding additional power in distributed audio applications or combining with home theater systems. The MX880 provides 8 channels, MX1280 provides 12 channels and MX1680 provides 16 channels of digital amplification. All MX Series models incorporate features such as bridge mode operation, global and independent zone triggering, audio sense circuitry with delay time per zone, two Bus Inputs/Outputs and independent line inputs per zone to meet the wide range of audio applications and projects. All MX Series amplifiers are rated at 50 watts per channel into 8 ohms and 80 watts per channel into 4 ohms. With the Stereo/Bridge switch in Bridge mode, each zone of channels are combined for a higher powered mono output of 160 watts into 8 ohms. With high performance and ultra-low distortion output, the MX series Multi-Zone Amplifiers provide unmatched sound quality for any audio system.
All MX series amplifiers are designed with special circuitry to safeguard the amplifier under a thermal overload condition. Thermal protection mode will only engage when the unit has been run at high volume for extended periods of time without adequate ventilation and/or when speaker impedances are below the minimum levels for the amplifier. In thermal protection mode the amplifier will automatically stop output. If this fault occurs, turn off the amplifier, and check that the speaker impedance rating is above the minimum rating. Also check for adequate ventilation around the amplifier and make adjustments if necessary. Once the unit has cooled to sage operating temperatures, the amplifier may be powered back on.
Special circuitry has been designed into the MX Series Multi-Zone Amplifier to safeguard under a short-circuit condition. A faulty speaker can also cause a short circuit condition. The Zone LED indicator will blink rapidly between red and blue. If this fault condition occurs, turn off the amplifier and check speakers for short circuit conditions when appropriate.
The MX Series Multi-Zone Amplifiers can be placed on a shelf, as part of an equipment rack, or on a table or cabinet. During installation, keep in mind that the amplifiers require proper clearances for ventilation and heat dissipation. The amplifier will take two rack spaces with the feet removed.
Power Output:
80W /Channel, 1KHz into 4 Ohms, One Zone Driven
50W /Channel, 1KHz into 8 Ohms, One Zone Driven
160W, 1KHz into 8 ohms, Bridge
Amplifier Channels:
MX 880: 8 Channels, 4 Zones
MX 1280: 12 Channels, 6 Zones
MX 1680: 16 Channels, 8 Zones
Signal-to-Noise Ratio: >90dB A-weighted
Frequency Response: 20Hz to 20KHz + 1.7/-1dB at 1W output into 8 Ohms
Input Sensitivity:
600 mV for 80W @ 1 KHz 4 Ohm One Zone
700 mV for 50W @ 1 KHz 8 Ohm One Zone
Input Impedance: >22K Ohms Line Input
Trigger Inputs / Outputs: Bus and Zone @12VDC
Zone Line Input: Line In, Bus In 1, Bus In 2 select switch per zone
Bridge Mode: Select Stereo or Bridge mode per zone 8 Ohm only
Speaker Connectors: Detachable speaker terminals support up to 14awg wire
Delay Time: When audio signal or trigger is not present after 5 minutes.
Power Requirements (Switchable):
MX880: 100-120VAC 60Hz 600W Max
220-240VAC 50Hz 600W Max
MX1280: 100-120VAC 60Hz 900W Max
220-240VAC 50Hz 900W Max
MX1680: 100-120VAC 60Hz 1200W Max
220-240VAC 50Hz 1200W Max
Fuse Rating:
MX 880: 100-120V/T5A, 250V
220-240V/T2.5A, 250V
MX 1280: 100-120V/T8A, 250V
220-240V/T4A, 250V
MX 1680: 100-120V/T10A, 250V
220-240V/T5A, 250V
Dimensions (L x W x H): 16.81" x 16.14" x 3.46"
Weight:
MX 880: 19 lbs.
MX 1280: 20.5 lbs.
MX 1680: 22.8 lbs.
MX Series amplifiers can be configured as the main amplifier for an audio distribution system or home theater system. When used with an audio distribution preamp or matrix processor, each zone can independently drive one of several different sources by using each zone's individual line audio inputs. If the specify zone needs a higher power, please just use Bridged mode.
When MX 1280 or MX 1680 is working as a home theater amplifier, the amplifier could support up to a 7.1 or 5.1surround system, and recommend using the Bridged mode to have the higher outputs.
When the amplifier is in Bridged Mode operation, a single channel (the left) is used to provide a higher power mono output. Use one channel pair to amplify the left channel by connecting the left audio signal to the L input of a channel pair, setting the Stereo/Bridge switch to "Bridge" and connecting the speaker as indicated below. Use a second channel pair for the right channel by connecting the right audio signal to the L input of a second channel pair, setting the Stereo/ Bridge switch to "Bridge" and connecting the speaker as indicated above. Note: The three position switch needs to be set to "Line In" on both zones that are wired for Bridged Mode.
Here you can download full pdf version of manual, it may contain additional safety instructions, warranty information, FCC rules, etc.
Download OSD MX 880, MX 1280, MX 1680 - Multiroom Amplifier MX Series Manual
Advertisement
Thank you! Your question has been received!
Need Assistance?
Do you have a question about the MX 880 that isn't answered in the manual? Leave your question here.