Enables the matching of input levels to the output levels from head unit (or other signal source). The input sensitivity of adjustment ranges from 6V to 200mV. crossover frequency control When crossover mode selector is in HIGHPASS mode, this control sets the lower frequency limit for audio program sent to the speakers. When crossover mode selector is in LOWPASS mode, this control sets the upper frequency limit for audio program sent to the speakers. bass boost level selector bass boost level co

If the mounting surface is carpeted, measure the hole centers and mark with a felt tip pen. Before attempting to drill the mounting holes, take note of any wires, lines or other devices in your vehicle which may be located behind the mounting surface! Then drill pilot holes in the mounting surface for the mounting screws and insert them. Tighten the screws securely. wiring tips When making electrical connections to your amplifier, please observe the following: Use at least 8 gauge wire for power

Sound cuts out or is I ntermittent Damaged or poor quality cables or connectors, connectors not properly inserted, amp overheating Check all cables and connections, refer to above sections regarding distortion and temp warning light Service All the products are thoroughly examined and tested before leaving the factory, and if used correctly will give you many years of excellent service. However, if a problem arises, proceed as follows: (A) contact the retailer from whom the unit was purchased an

USE ONLY SAME TYPE AND RATING! NO sound (Power LED on) No input, or input too low Check input is connected, and LED Level controls set too low Increase level controls Speakers faulty or not connected Check speakers and speaker connections Hum or buzz is audible Noise from AC supply is being picked up in the signal path Use good quality, shielded signal cables and ensure they are kept away from AC power cables and other AC powered equipment There is an earth problem Use a mains tester to ensure t

.PQA power amplifiers are designed to fit standard 19 racks, with a 2U height and 17 depth. We recommend the use of rear rack supports, especially if the rack is to be mobile. Use shake proof washers or thread lock adhesive to prevent mounting bolts becoming loose in transit. .Ensure that the AC power supply is correct for your amplifier. The required AC supply is stated on the rear panel next to the AC power input. . Ensure that you use the correct type of mains lead for your equipment and coun

Be sure to mount the amp in such a manner as to allow reasonable airflow over the cooling fins. Mark the location for the mounting screw holes by positioning the amp where you wish to install it and use a scribe (or one of the mounting screws) inserted in each of the mounting holes to mark the mounting surface. If the mounting surface is carpeted, measure the hole centers and mark with a felt tip pen. Before attempting to drill the mounting holes, take note of any wires, lines or other devices i

You may use 4 to 8 ohms speakers. Before connecting, please check speaker connection diagrams. 2 ELECTRICAL & AUDIO CONNECTIONS A. STEREO INPUT CONNECTION I.High impedance input. 2.Low impedance (BTL or Common Ground) Input a.Four Speaker Output Mode a-1. Floating Ground Type CAR STEREO Figure 3 3 ELECTRICAL & AUDIO CONNECTIONS a-2. Common Ground Type Figure 3A b.Two Speaker Output Mode b-1. Floating Ground Type Tf "F 'nf T’ "if "if "iF "ii—A Figure 4 4 ELECTRICAL & AUDIO CONNEC

Couple the RCA input with the car stereo or equalizer outputs using RCA type connector cables. 5. POWER FUSE Power fuse protects both this amplifier and the automobile electrical system from wrong electrical conditions. 6.POWR SUPPLY TERMINAL Connect the +12V DC power supply into the terminal by lugs and screws accessible at the panel of this amplifier. A.BATT +12V Connect +12V DC power supply wire into the terminal from the terminal of the battery. B.GROUND Ground terminal connect the g

wiring tips fuses Connect the power ground terminal to the nearest point on the chassis of the car. Keep this ground wire less than one meter (39") in length. Use 4 gauge wire. Connect the remote terminal to the remote output of the head unit using 14 gauge. Connect an empty fuse holder within 300mm (12") of the battery and 4 gauge or larger high quality cable from this fuse to the amplifier location. Make sure there is no fuse in this fuse holder. Then make the connection to the "BATT" connecti

Reversing any of these connections will result in the speaker cones moving out of phase which causes bass cancellation. LEVEL CONTROLS Turn the VOLUME control on the amplifier to Min initially. Once the initial power sequence has been performed, set the CD/RADIO volume control to roughly 80% of full. Insert a CD or tune to a radio station and slowly turn up the amplifier VOLUME control until you hear some distortion, and then back it off for clean sound. 5 2 CHANNEL AMPLIFIER - APPLICATIONS