Monolith 7X 7-Channel 200-Watt Power Amplifier Model 14566 User's Manual
CONTENTS SAFETY WARNINGS AND GUIDELINES ....................................................................................................................................... 3 INTRODUCTION ................................................................................................................................................................................................ 4 FEATURES .....................................................................................................................
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. Do not touch the device, the power cord, or any other connected cables with wet hands. Do not expose this device to excessively high temperatures.
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. Never unplug the unit by pulling on the power cord. Always grasp the connector head or adapter body. Clean using a soft, dry cloth only. Do not use chemical cleaners, solvents, or detergents. For stubborn deposits, moisten the cloth with warm water.
CUSTOMER SERVICE The Monoprice Customer Service department is dedicated to ensuring that your ordering, purchasing, and delivery experience is second to none. If you have any problem with your order, please give us an opportunity to make it right. You can contact a Monoprice Customer Service representative through the Live Chat link on our website www.monoprice.com during normal business hours (Mon-Fri: 5am-7pm PT, Sat-Sun: 9am6pm PT) or via email at support@monoprice.
PRODUCT OVERVIEW A. INPUT 1-7: RCA and XLR line-level inputs for connection to the preamplifier outputs on a dedicated preamplifier or AV receiver. The Input Select switch switches between the RCA and XLR inputs. B. TRIGGER INPUT: 3.5mm TS jack for connection to the trigger output of a source device. The presence of voltage on this input will cause the amplifier to power on. The amplifier will automatically power down into standby mode after the trigger signal has been removed. C.
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. For residential installations, an In-Wall rating is sufficient for all circumstances.
RCA or XLR Cables You will need seven single RCA or XLR cables to connect the preamp outputs on your preamplifier to the inputs on this amplifier. In most cases, ordinary RCA cables are sufficient. However, if there is a significant distance between the amplifier and the preamplifier, it is recommended to use RCA cables manufactured using shielded RG6 or RG59 cable. For long distance cable runs, balanced XLR cables are highly recommended.
INSTALLATION Perform the following steps to install this amplifier into a 7.1-channel audio system. 1. Power off and unplug all equipment that will be connected to this amplifier. 2. Prepare seven lengths of speaker wire (not included) to connect each of the seven output channels to its respective speaker. 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.
circuitry is properly warmed up. Once the LED stops blinking and illuminates steadily, the amplifier has finished the start-up process and is ready for operation. Note: It is recommended to always turn the amplifier on last and to turn it off first whenever powering your audio system on or off. This ensures that any pops or transient spikes, which could cause damage to the delicate speaker coils, are not sent to your speakers.
TROUBLESHOOTING Q1. The amplifier will not power on. A1. Verify that the Master Power switch on the rear panel is in the ON position. Check to ensure that the AC power cord is fully plugged in at each end. Verify that the AC power outlet is live by plugging in another device, such as a lamp. 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.
SPECIFICATIONS Model 14566 Number of Channels 7 EIA 1kHz Output Power at 8 Ohms* 250 watts EIA 1kHz Output Power at 4 Ohms* 375 watts FTC Full Bandwidth Output Power at 8 Ohms** FTC Full Bandwidth Output Power at 4 Ohms** Input Sensitivity for Full Rated Power 200 watts 300 watts RCA Input: 1.49 Volts XLR Input: 1.67 Volts Frequency Response at Rated Output 20Hz ~ 20kHz ±0.
Input Impedance 28 kilohms (nominal) Remote Trigger Voltage 3.3 ~ 24 VDC at 5mA or greater DC Output Offset Less than ±5mV Input Power 120 VAC (nominal) Chassis Dimensions 17.0" x 7.0" x 16.5" (432 x 178 x 419 mm) Net Weight 93.2 lbs. (42.3kg) * EIA 1kHz Power refers to maximum average power in watts RMS at 1kHz with 1% THD +N. This test is performed with one channel at this maximum power with all other channels driven to 1/8th power.
