Summary of Contents for monolith M8250X
- Page 1 M8250x 8x200 Watts Per Channel Class-D Multi- Channel Home Theater Power Amplifier (42564) M8125x 8x100 Watts Per Channel Class-D Multi- Channel Home Theater Power Amplifier (42565) P/Ns 42564, 42565 User's Manual...
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Page 2: Table Of Contents
CONTENTS SAFETY WARNINGS AND GUIDELINES ........................... 3 INTRODUCTION ......................................4 FEATURES ........................................4 CUSTOMER SERVICE ....................................5 PACKAGE CONTENTS .................................... 5 PRODUCT OVERVIEW ................................... 6 42564 ..........................................6 42565 ..........................................7 CABLE PREPARATION.................................... 8 Speaker Wires ....................................... 8 XLR Cables ........................................ 8 Trigger Cable ...................................... -
Page 3: Safety Warnings And Guidelines
SAFETY WARNINGS AND GUIDELINES • This device is intended for indoor use only. • Do not expose this device to water or moisture of any kind. Do not place drinks or other containers with moisture on or near the device. If moisture does get in or on the device, immediately unplug it from the power outlet and allow it to fully dry before reapplying power. -
Page 4: Introduction
• Do not plug this device into the switched output of a preamplifier or other audio component. This amplifier requires higher current levels than these devices are designed to handle. • Unplug this device from the power source when not in use. •... -
Page 5: Customer Service
Please take an inventory of the package contents to ensure you have all the items listed below. If anything is missing or damaged, please contact Monoprice Customer Service for a replacement. 1x M8250X or M8125X 8-Channel Power Amplifier 2x High-Current AC Power Cords (42564 only) 1x High-Current AC Power Cord (42565 only) -
Page 6: Product Overview
PRODUCT OVERVIEW 42564 1. INPUTS: Eight balanced XLR line inputs for connecting to the preamplifier outputs on a dedicated preamplifier or AV receiver. 2. OUTPUTS: Eight pairs of 5-way binding posts for connecting the speakers. 3. TRIGGER INPUT: 3.5mm TS jack for connection to the trigger output of a source device. - Page 7 42565 1. INPUTS: Eight balanced XLR line inputs for connecting to the preamplifier outputs on a dedicated preamplifier or AV receiver. 2. OUTPUTS: Eight pairs of 5-way binding posts for connecting the speakers. 3. TRIGGER INPUT: 3.5mm TS jack for connection to the trigger output of a source device.
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Page 8: Cable Preparation
CABLE PREPARATION You will need several cables for this installation. None of the cables or connectors mentioned in this section are included with the system. Important Safety Note! If you plan on running any of these cables through the walls, through a connecting floor, or inside an air duct, they should be rated for In-Wall, Riser (between floors), or Plenum (air duct) use in commercial installations. -
Page 9: Trigger Cable
Trigger Cable This amplifier features a low voltage trigger input, which can switch the amplifier from standby mode into full power on mode whenever the trigger signal is detected. The trigger signal consists of a low-current, low-voltage signal (between 3.3 and 24.0 VDC) applied to the input, which is carried between components with a cable that terminates in a 3.5mm TS plug. - Page 10 3. Using a two-conductor speaker wire, connect one end to the input terminals on the speaker, then connect the other end to the Output terminals on the amplifier. Take care to maintain polarity with positive to positive and negative to negative. 4.
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Page 11: Fuses
FUSES The system uses two fuses to protect the circuitry from excessive current. P/N 42564 uses two 20A slow-blow/time lag ceramic 5x20 fuses, while P/N 42565 uses two 10A slow- blow/time lag ceramic 5x20 fuses. PROTECTION CIRCUITRY This amplifier uses protection circuitry by Hypex® to protect it from common faults. The protection circuits work as follows: •... -
Page 12: Technical Support
Q2. Audio from some channels, but not others. A2. Try swapping the speaker from a good channel to the output of the bad channel to see if the problem is with the input or output. Check that the XLR input cable is firmly seated on the connector at each end. -
Page 13: Specifications
SPECIFICATIONS 42564 Model M8250X Inputs 8x balanced XLR Input Impedance 47kΩ Gain 25.7dB Frequency Response at Rated Output 20Hz ~ 20kHz ±0.5dB Greater than 115dB below rated FTS Full Signal-to-Noise Ratio (A-Weighted) Bandwidth Power Measurements into 8-Ohm Loads FTC Full Bandwidth (20Hz ~ 20kHz) Output... - Page 14 Total Harmonic Distortion + Noise (THD+N) < 0.025% at Rated Power @ 1kHz Hypex® Ratings 8-ohm Load, 1kHz, 1% THD 350 watts 4-ohm Load, 1kHz, 1% THD 500 watts 2-ohm Load, 1kHz, 1% THD 450 watts (current limited) Load Impedance Rated for 4 ~ 16 ohm loads 1 Watt Power Bandwidth +0, -3dB from 10Hz ~ 48kHz...
- Page 15 Greater than 115dB below rated FTS Full Signal-to-Noise Ratio (A-Weighted) Bandwidth Power Measurements into 8-Ohm Loads FTC Full Bandwidth (20Hz ~ 20kHz) Output 100 watts (all channels driven) Power Input Sensitivity for Full Rated Power 1.465 volts Total Harmonic Distortion + Noise (THD+N) Less than 0.05% (20Hz ~ 5kHz) @ 20Hz ~ 20kHz Less than 0.5% (5kHz ~ 20kHz)
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Page 16: Regulatory Compliance
1 Watt Power Bandwidth +0, -3dB from 10Hz ~ 50kHz Damping Factor Greater than 400 from 20Hz ~ 400Hz Crosstalk Better than -70dB, 200Hz ~ 20kHz DC Output Offset Less than ±20mV Remote Trigger Voltage 3.3 ~ 24.0 VDC, 5mA Input Power 120 VAC, 60Hz Dimensions (with binding posts) (HxWxD) -
Page 17: Notice For Ised Canada
This Class B digital apparatus complies with Canadian ICES-003. Cet appareil numérique de la classe B est conforme à la norme NMB-003 du Canada. Monoprice™, Monolith™, the Monolith logo, and all Monoprice logos are trademarks of Monoprice Inc. Hypex® is a trademark of Hypex Electronics B.V.