User manual MCINTOSH PC5

[. . . ] This unit is capable of producing high sound pressure levels. Continued exposure to high sound pressure levels can cause permanent hearing impairment or loss. User caution is advised and ear protection is recommended when playing at high volumes. Disconnect this equipment when unused for long periods of time. [. . . ] The amplifier can be mounted vertically or horizontally and may be located under a seat if adequate clearance is available. The preferred installation method is to mount the amplifier directly to the vehicle main frame using the hardware supplied with the amplifier. It is not recommended that the amplifier be mounted under the hood or in a location where it will be directly exposed to the elements. The openings in the fan housings and heat tunnel vents can allow internal components to be damaged by exposure to water, chemicals or any form of road dust or debris. Removing the Glass Panel To access the MCC404/MCC404M Controls, remove the glass panel by removing the four hex bolts with the supplied 3/32 hex key. Attach the supplied suction cup to the top center of the glass panel and carefully raise it high enough to put your hand under. Temporarily place the removed glass panel in a safe place, remove the suction cup and save it for future use. Removing the End Caps To access the MCC404/MCC404M Connecting Terminal Blocks, remove the Glass Panel first (the above step) and then remove the Phillips Screws holding the End Caps on both sides of the amplifier and lift the end caps off. See figure 3. Warm Air Cool Air Figure 1 Cool Air Warm Air Remove Top Cover Screws Figure 2 Remove Top Cover Screws Remove End Cap Screws Figure 3 Remove End Cap Screws 6 Side Panel Cooling and Connections Connect to the Negative (-) vehicle battery terminal Cooling Fan Air Intake Connect to the positve (+) vehicle battery terminal with an inline fuse Cooling Fan Air Intake SUBWOOFER OUTPUTS supplies a four channel summed output OUTPUTs from the INPUT Signal Source to connect to the another Power Amplifier Receives the Amplifier Turn-ON signal from a McIntosh Control Center OUTPUT Connections for 2, 4 or 8 ohm loudspeakers INPUTs for audio cables from a signal source OUTPUT Connections for 2, 4 or 8 ohm loudspeakers Controls the Power Guard Circuit when connected to certain McIntosh Control Centers Connector for optional Subwoofer Remote Volume Control 7 How to Connect for Four Channels How to Connect for Four Channels 1. Connect the cable from the Control Center Amp On to the MCC404/MCC404M ON Connector on the right side of the amplifier. Connect a cable from a McIntosh Control Center with Power Guard to the MCC404/MCC404M PG Connector on the right side of the amplifier. Connect the cable from the Control Center Amp On to the MCC404/MCC404M ON Connector on the right side of the amplifier. Connect a cable from a McIntosh Control Center with Power Guard to the MCC404/MCC404M PG Connector on the right side of the amplifier. Connect cables (up to 12AWG) from two separate upper range loudspeakers, to the Amplifiers Channels 1 and 2 Terminals, and subwoofer loudspeaker to Bridged Channels 3 and 4 Terminals, being careful to observe the correct polarities. Connect audio cables from the Control Center Outputs to the MCC404/MCC404M Inputs 1 and 2. Optional Connection allows the SUB Outputs to be connected to a separate Subwoofer Power Amplifier, regardless of the MCC404/MCC404M Operating Mode used. Note: All cables should be connected to the amplifier before connecting the DC power cables to the battery. Note: The Subwoofer Outputs are line-level outputs and summed from all the Input Channels. They can be remotely controlled by connecting a cable from the SUB REMOTE CONTROL jack to the optional external rotary control. 6. Optional Connection allows the SUB REMOTE CONTROL to be connected to the Power Amplifier, regardless of the MCC404/MCC404M Operating Mode used. Connect the MCC404/MCC404M to the vehicle battery terminals using size 4 AWG (Maximum) cables. Note: It is advisable to place an in-line fuse of a suitable size as close as possible to the battery. Optional connections for controlling the Subwoofer Level by using the Front to Rear Fader Control on the Control Center McIntosh Control Center Left Output Right Output Left Loudspeaker 76543210987654321 76543210987654321 76543210987654321 76543210987654321 76543210987654321 76543210987654321 76543210987654321 76543210987654321 76543210987654321 76543210987654321 76543210987654321 76543210987654321 76543210987654321 76543210987654321 76543210987654321 76543210987654321 76543210987654321 Right Loudspeaker 987654321 987654321 987654321 987654321 987654321 987654321 987654321 987654321 987654321 987654321 987654321 987654321 987654321 987654321 987654321 987654321 987654321 987654321 987654321 - Vehicle + Battery Fuse SubWoofer Loudspeaker 11 Top Panel Controls, Display and Switches CH 3/4 LOW PASS Filter Switch and Control selects the high roll-off frequency or flat frequency response CH 3/4 EQUALIZER Controls select the Frequency and the Level of Boost or Cut at the Center Frequencies CH 3-4 SENSITIVITY Individual Input Sensitivity Controls for Channels 3 and 4 CH 3/4 MODE Switch selects STEREO or BRIDGE mode of operation CH 3/4 HIGH PASS Filter Switch and Control select the low frequency roll-off rate or flat frequency response POWER GUARD LED lights when the Power Guard Circuit activates for Amplifier Channels 3 or 4 POWER GUARD LED lights when the Power Guard Circuit activates for Amplifier Channels 1 or 2 INPUT SOURCE Switch for Channels 3&4 selects either CHs 1&2, 3&4 or Subwoofer (Sum of CHs 1, 2, 3, & 4) METER indicates Channels 1 and 2 Power Output METER indicates Channels 3 and 4 Power Output CH 1/2 MODE Switch selects STEREO or BRIDGE mode of operation CH 1/2 HIGH PASS Filter Switch and Control select the low roll-off frequency response CH 1-2 SENSITIVITY Individual Input Sensitivity Controls for Channels 1 and 2 CH 1/2 LOW PASS Filter Switch and Control select the high roll-off frequency response CH 1/2 EQUALIZER Controls select the Frequency and the Level of Boost or Cut at the center frequencies 12 How to Operate the MCC404/MCC404M Introduction The McIntosh MCC404/MCC404M is a highly versatile amplifier that can be configured in many ways. This manual gives examples of some of the most common configurations. The best way to set equalization and filter controls is through the use of a real-time spectrum analyzer and the expertise of a professional installer. [. . . ] Set the channel 3-4 Low Pass Filter controls to the frequency below which you wish to send to the subwoofer. Example: To send frequencies below 200Hz to the subwoofer, set the FREQUENCY Control to 200 and the MULTIPLIER Switch to X1. 15 How to Replace the Fuses How to Replace the Fuses If the MCC404/MCC404M produces no sound, there is no Illumination of the Nomenclature on the Top Glass Panel, and the power connections seem secure, one or more of the Amplifier Fuse(s) may have failed. Under normal operating conditions your amplifiers fuses should not fail. Failure of a fuse is usually an indication of a problem. Replacing the fuse, if there is problem in the amplifier, may incur a risk of further damage. [. . . ]