INTRODUCTION
You have purchased an amplifier that leads the way with sound quality, reliability, and sheer, raw power. These high
performance amplifiers deliver what you ask for; smooth, effortless listening, and hard driving power to get you down
the road. LINEAR POWER has been a name recognized since 1975 as a product delivering high quality and audio
excellence. Now, you have the results of that experience.
Features include: gold plated, 5-way binding post speaker connection; high current, gold plated power connector; LINEAR POWER's exclusive, FMB power supply; configurable PMT circuitry for maximum power into 2 ohm and 4 ohm stereo or 8 ohm or 4 ohm bridged speaker loads; metal package, military spec, TO3 output transistors that withstand heat and abuse better than any other transistor casing made; mega-mass heatsink; optically isolated power supply and signal grounds; reversible nameplate; and LINEAR POWER's reliability and commitment to excellence. Enjoy the music!!
| SPECIFICATIONS |
| RMS Power 4 Ohm | ||
| RMS Power 4 Ohm | ||
| @ 12.5 Vdc | ||
| RMS Power 4 Ohm | ||
| @ 14.4 Vdc | ||
| RMS Power w/ | ||
| Music (4 Ohm) | ||
| Max Peak Output (Mono) | ||
| THD + Noise | ||
| Signal-to-Noise | ||
| Channel Separation | ||
| Input Sensitivity | ||
| Input Impedance | ||
| Frequency Response | ||
| Dimensions | ||
Please read through this entire section before installing your amplifier vehicle. Disconnect the negative (-) battery terminal in your vehicle and remove any fuses from your car audio installation before making or breaking any connections.
RCA connections: Connect with quality patch cords from head unit, preamplifier, crossover, or any other sound processor.
INPUT level: This is NOT a volume control. The input sensitivity should be adjusted to give you maximum output power while minimizing distortion. To set the input sensitivity, first turn the amp input level control fully counter-clockwise. Turn the source output level up until the signal just starts to distort, then turn the amp input level control back slightly so that the distortion goes away. Now rotate the input level control on the amp clockwise until the signal just starts to distort, then turn the amp input level control back down sightly so that the distortion goes away. This setup procedure allows the source and amp to reach maximum clean output at the same time. For maximum performance/power, the input voltage to the amplifier should not exceed 6.5Vrms.
Speaker connections: These connections are high quality 5 way binding posts. You may connect them with banana plugs, spade connectors, pins or bare wire. For mono connection of the amplifier, connect the speaker positive (+) to the left, red binding post and the speaker negative (-) to the right, black binding post. Both the 2.2HV and the 3.2HV are three channel (mixed mono) capable amplifiers.
The minimum recommended speaker load on the 2.2HV and the 3.2HV amplifiers are 4 Ohm mono (or 2 Ohm stereo). Unlike most car audio amplifiers, the 2.2HV and the 3.2HV, as well as all Linear Power amplifiers, are designed for maximum power output into BOTH 4 Ohm and 2 Ohm stereo or 8 ohm or 4 ohm mono loads, but you will obtain more output power and better sound at 8 Ohm mono due to less strain on the cars' electrical system and less heat generated in the amplifiers.
If you must use a 2 Ohm stereo or a 4 ohm mono speaker load for your 2.2HV or 3.2HV, you MUST change the PMT circuitry configuration inside the amplifier. First, remove the silver faceplate and slide off the bottom cover. You will see two plug-on wires approximately in the center of the circuit board. Move both of these wires from the positions marked "4" to the position marked "2" on the circuit board for 2 ohm stereo operation or 4 ohm bridged operation. After making this change, you should readjust the input level control as in (2) above.
+12V connection: Connect 8 AWG or larger power cable through the supplied inline fuse to the positive (+) terminal on the battery. Position the inline fuse within 18" of the battery. We recommend a 4 AWG wire with insulation and wire stripped down such that the wire barely fits into the power connector for maximum surface contact and power transfer. Be sure all connections are secure.
GND Connection: Connect 8 AWG or larger power cable directly to a clean bare metal surface on the car chassis. We recommend a 4 AWG wire with insulation and wire stripped down such that the wire barely fits into the power connector for maximum surface contact, power transfer, and minimum noise. Use as short a cable run as possible. Be sure all connections are secure.
REM connection: Connect 18 AWG or larger wire to the remote turn-on signal or power antenna signal from the source unit. If you do not have either of these signals available, use the "ignition" or "accessory" signal to drive a relay that will connect the battery to the rem input on the amplifier when the key is in the ignition. You should NEVER connect the rem wire directly to the "ignition" or "accesory" wire, as this could damage the amplifier. Be sure all connections are secure.
Fuse: Remove the fuse from the +12 V connection before making or breaking any connections in your installation. If you need to replace the fuse, use only a fuse of the same style and amperage rating as that shipped with the amplifier (see chart below). If the fuse blows, it is telling you there is something wrong. Please listen.
Fan connection: This connector will power a 12vdc fan. It is thermally controlled by circuitry inside the 3.2HV. The 2.2HV does not have this option. The TOP pin is +12VDC. The MIDDLE pin is GND. The BOTTOM pin is not connected to the amp.
POWER indicator: The green power LED, on the 2.2 HV only, indicates the amplifier power supply is working. If the green LED is flashing, it is an indication that the +12V connection is dipping below 10.5 Vdc, or that the speaker load is too low.
The amplifier will work best if it is kept as cool as possible. Mount the amp in a position that will allow air to flow freely through the fins. Hot air rises, so orienting the amp with the connectors facing the ground and the silkscreened faceplate facing the sky is the ideal mounting position. The amplifier should not be mounted upside down. Be sure there is ample space above the amplifier to avoid trapping heated air against the heatsink.
The heatsink of your amplifier is designed to act as a noise shield. To maintain this protection, be sure the metal case of the amplifier does not touch any metal in the car. Do not remove or damage the rubber grommets which provide electrical insulation and vibration isolation. Avoid mounting the amplifier in the dash (hah! Good luck doing this with these big dogs) or on the firewall where sources of noise such as your alternator, windshield wiper motor, and air conditioner radiate the most energy.
No Sound: Check all signal input and speaker connections for poor contact or short circuits. Check all power, ground, and remote turn on connections for poor contact or short circuits.
Blows Fuses: Check all connections to be sure all power wires do not touch ground or each other. Be sure power connections are not reversed. Check the PMT configuration for proper setting (see the CONTROL AND CONNECTIONS section of this manual for the correct setting of the internal PMT connectors). Check the input level control for proper setting.
Noise Problems: Be sure the metal sleeve on the RCA (phono) jacks does not touch the metal chassis of the vehicle, the heatsink of the amp, or the chassis of any other components in your installation. Route signal cables away from power wires, power connectors, speaker wires, engine alternator, vehicle firewall. Keep the GND wire connected to the chassis of the vehicle as short as possible. Connect the +12 V wire through the supplied fuseholder directly to the battery (+) terminal.