User manual PARASOUND HCA806A

[. . . ] O W N E R ' S M A N U A L HCA-80 6A Si x Channel High Current Power Ampl if ier i Amplifier HCA-806A High Current Mult Current Overload Power 1 2 3 4 AC Line 5 Standby 6 Normal -1- Table of Contents Important Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Figure #1 and #2 HCA-806A Front and Rear Panel Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Installing and Rack Mounting Your Amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] 3) Do not place the amplifier on carpeting that will obstruct the air flow into the bottom of the amplifier chassis and heatsinks. If you do stack components, you must use a fan to circulate the warm air that will quickly become trapped between them when they are powered on. -5- Input Connections and Switch Settings for the HCA-806A Refer to Figure #2 Six Channel Operation The six channel mode of your HCA-806A can power the six speakers required for a complete home theater: Front left and right, surround left and right, center channel, and subwoofer. Connect each output from your surround processor to the corresponding input connector of your HCA-806A. If you are using your HCA-806A in the six channel mode, we suggest the following progression of channel priorities. This is an easy way to remember what you connected to each channel for setting levels or troubleshooting: Recommended Input Connections for Six Channel Operation Use INPUTS 1 and 2 for your front left and right channels Use INPUTS 3 and 4 for your left and surround right channels Use INPUTS 5 for your center channel Use INPUTS 6 for your passive subwoofer Switch Settings for Six Channel Operation: Leave LOOP 1/2 > 3/4 and LOOP 1/2 > 5/6 switches in their OFF positions and both MONO BRIDGE switches in their SEPARATE positions. Four and Five Channel Operation In addition to six channel operation, you can use your HCA-806A in a variety of other configurations depending upon your needs. Below are examples of four and five channel operation. Spade Lugs If you prefer to use speaker cable with spade lugs, make sure you do not permit the lug to rotate as the terminal is tightened. Do not overtighten the speaker terminal onto the spade lug. The limited warranty does not cover terminals that are sheared off as a result of overtightening. Bare Wire If you use bare wire without plugs, be sure to strip off only enough insulation so the bared wire fits into the hole that runs sideways through the terminal's metal shaft. Before inserting the wire, twist all its strands tightly to prevent strays that could cause a short circuit between + and -- terminals or adjacent channel terminals. If you have a soldering iron, it is a good idea to "tin" the bare wire with solder to keep it from unraveling and to prevent oxidation. -7- Mono Bridging -- Channels 3+4 and 5+6 When you bridge channels 3+4 and/or 5+6, your speakers are connected to the bridged channels differently. You bridge by using the red + terminals of the adjacent channel pairs only. Note that bridged connections are made horizontally rather than vertically and that the upper red + terminals have separate markings for bridging. In the bridged mode, channel 4 (and/or 6) output is positive and channel 3 (and/or 5) output is negative. Unbridged speaker connections can be made with standard 3/4" (19 mm) dual banana plugs. However internal space required by the high current protection relays prevent the bridged terminal pair spacing to be close enough to accept 3/4" (19 mm) dual banana plugs. Single banana plugs, spade lugs, or bare wire termination are required. Select MONO BRIDGING (up) or SEPARATE (down) as marked on the rear panel. Switch the power off before moving either of these switches. If you accidentally leave either switch in the mono bridge position, the stereo output will be very weak and distorted. [. . . ] You will also be asked to repack the unit in its original packing and both of its cardboard cartons for proper protection in transit. Units that arrive without the correct Return Authorization number, without a suitable shipping carton or evidence of improper internal packing will be refused. After repair under warranty, the unit will be returned to you prepaid. If we found no problem with the unit, we will return the unit with collect charges for return shipping charges. [. . . ]