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speaker connections for stereo configurations 

Minimum recommended impedance is 2

stereo.

Speaker terminals accept up to AWG #12 speaker wire.

speaker connections for bridged configurations 

Minimum recommended impedance is 4

when bridged to subwoofers and 3

when bridged to full

range speakers. Speaker terminals accept up to AWG #12 speaker wire.

12

proper size fuse

less than 18" 

from battery

Summary of Contents for AC502

Page 1: ...rst time a car audio system existed with the musical integrity and dynamic range that made you want to take long drives to nowhere just to listen to the music High quality car audio was born and the original a d s PowerPlate P100 made it happen The latest improvements to the PowerPlate line up include increased heatsink area to facilitate higher power output and fully balanced high level inputs co...

Page 2: ...mmon pwm pulse width modulated supplies The advantages are extremely fast overload recovery time low output impedance for superior damping and stability during voltage fluctuations for reliable performance in the harsh automotive environment Detachable Plug in Connectors High current speaker and power connectors simplifies installation Remote Subwoofer Control Capability Can be used with accessory...

Page 3: ... have either terminal connected to the speaker frame or to the vehicle chassis mounting locations Due to its low profile there are many possible choices of mounting locations Always mount the PowerPlate in a place that protects it from the elements In addition mount the PowerPlate on a stable flat mounting surface Whenever possible pre drill the mounting holes Remember to check behind the panel fo...

Page 4: ...n normal operation will resume Continuing to operate the amplifier under these conditions is not recommended and will reduce its life expectancy Most speakers designed for car audio operation are 4Ω impedance Connecting two such speakers in parallel will result in a 2Ω impedance load as seen by the amplifier Some a d s subwoofer models feature a dual 4Ω voice coil design Connecting these voice coi...

Page 5: ...system diagrams System 1 P450 2 used in 4 channel mode with front and rear full range speakers System 2 P450 2 used in 2 channel bridged mode with full range speakers 5 rear left satellite front left satellite ...

Page 6: ...o drive front tweeters and midrange drivers the second is used in 2 channel bridged mode for subwoofers Subwoofer level can be controlled by using the source s front output for the first P450 2 and the rear output for the second P450 2 6 ...

Page 7: ...nnels 5 6 are low passed for subwoofers Although shown with 4 channels of input the source unit can be either 2 or 4 channel System 2 P650 2 used in 6 channel mode Channels 1 2 are high passed for tweeters Channels 3 4 are high passed for midrange speakers and channels 5 6 are low passed for subwoofers 7 left tweeter right tweeter left midrange right midrange ...

Page 8: ...System 3 P650 2 used in 3 channel mode Channels 1 2 and 3 4 are high passed and bridged for front speakers Channels 5 6 are low passed and bridged for a single subwoofer 8 ...

Page 9: ...ers Although shown with 4 channels of input the source unit can be either 2 or 4 channel System 2 The P850 2 is used in 8 channel mode Channels 1 2 are high passed for front tweeters Channels 3 4 are high passed for rear speaker Channels 5 6 are band passed for front midrange speakers and channels 7 8 are low passed for subwoofers Although shown as a 4 channel input the source unit can be either 2...

Page 10: ...ust the level of the subwoofers System 4 The P850 2 is used in bridged 4 channel mode Channels 1 2 and 3 4 are high passed bridged mono for front speakers Channels 5 6 and 7 8 are low passed summed bridged for subwoofers Front left speakers are controlled by channel 1 2 level control Front right speakers are controlled by channel 3 4 level control Channel 5 6 and 7 8 are controlled by channel 5 6 ...

Page 11: ...on on the proper connections The speaker terminal blocks install with the set screws facing up and power terminal block installs with the set screws facing down 6 Preset the 2 4 channel selector switch crossover and channel mode switches and crossover frequency switches to the desired positions Refer to the controls and connections section for more information 7 Adjust all amplifier input level co...

Page 12: ...er terminals accept up to AWG 12 speaker wire speaker connections for bridged configurations Minimum recommended impedance is 4Ω when bridged to subwoofers and 3Ω when bridged to full range speakers Speaker terminals accept up to AWG 12 speaker wire 12 proper size fuse less than 18 from battery ...

Page 13: ... high end aftermarket source unit The speaker outputs of the factory radio are simply connected to a mini DIN adapter as shown below From this point on the signal can be treated exactly as you would a preamp level signal except that the input level controls on the PowerPlate will be set to a lower than usual level when you make your final adjustments Conventional aftermarket sources may be connect...

Page 14: ...3 4 input blue ch 5 6 input yellow ch 7 8 input Note ch 1 2 input not available through the DIN internal signal routing 2 channel 4 channel input switch routes RCA input from channels 1 2 to channels 3 4 When the switch is engaged channel 1 input is routed to both amplifier channels 1 and 3 with input channel 2 routed to amplifier channels 2 and 4 Switch in the engaged position When the switch is ...

Page 15: ... of channels 2 and 4 When the switch is in the center position channels 7 8 receive input from channels 3 4 RCA input When the switch is in the right position channels 7 8 receive input from the 7 8 DIN input Level controls Independent level controls for channels 1 2 3 4 5 6 and 7 8 adjust the input sensitivity from 100 mV to 8 V RMS Output Three position switches determine the output configuratio...

Page 16: ...ncy adjustment control Both high pass and low pass crossovers are infinitely adjustable from 45Hz to 5 000Hz The high pass and low pass sections may be used individually or together to create a bandpass filter Note When using both sections to create a bandpass filter make sure you have selected a low pass frequency which is higher than the high pass frequency xover control 5 6 P650 2 The crossover...

Page 17: ... a low pass frequency which is higher than the high pass frequency xover control 7 8 The crossover selection for channels 7 8 has three possibilities When the switch is in the left position channels 7 8 receive signal from the crossover output of channels 5 6 Note When the switch is in the left position the output level is controlled by the ch 5 6 level control When the switch is the center positi...

Page 18: ... marked at four reference frequency points These are 45Hz 175Hz 600Hz and 5 000Hz Specific crossover points should be chosen based on the operating range recommended by the manufacturer of your speakers The 85Hz position is a good starting point to use for subwoofer low pass or midrange high pass use When bi amping a d s loudspeaker components 2500Hz is a good starting point for the midrange low p...

Page 19: ...more Back down on the volume control slightly until the distortion goes away You have just found the maximum undistorted output level of your source unit Do not exceed the level in normal operation as doing so will just send a distorted signal to the rest of the system 7 Returning to the PowerPlate level control associated with the front main speakers slowly increase it until you reach the point w...

Page 20: ...20 a d s P450 2 ...

Page 21: ...21 a d s P650 2 ...

Page 22: ...22 a d s P850 2 ...

Page 23: ...s proper when amplifier heatsink ventilation for amplifier and temperature exceeds 90 C improve ventilation as needed loose or poor audio input check input connections and repair or replace as needed distorted output amplifier level sensitivity set too reset gain referring to the high exceeding maximum tuning section of the manual output capability of amplifier for detailed instructions impedance ...

Page 24: ... speakers to achieve a higher impedance short in power wire or incorrect check power and ground power connections connections and repair as needed fuse used is smaller than replace with proper fuse size recommended too much current being drawn check speaker impedance load if below 2Ω stereo or 4Ω mono rewire speakers to achieve a higher impedance short in power wire or incorrect check power and gr...

Page 25: ...2 X 30 ATC P450 2 2 X 20 ATC crossover section3 ch 1 2 high pass ch 3 4 high pass low pass ch 5 6 high pass low pass P850 2 low pass P650 2 ch 7 8 low pass dimensions P850 2 13 X 2 X 16 1 8 330mm X 50mm X 410mm P650 2 13 X 2 X 14 1 8 330mm X 50mm X 359mm P450 2 13 X 2 X 11 1 8 330mm X 50mm X 283mm 1 All channels driven continuous FTC rated 4Ω load 20Hz to 20 000Hz 0 1 THD power input voltage at 13...

Page 26: ...r unreasonable use neglect improper service or other causes not arising out of defects in materials or construction ALL WARRANTIES INCLUDING BUT NOT LIMITED TO EXPRESS WARRANTY IMPLIED WARRANTY WARRANTY OF MERCHANTABILITY FITNESS FOR PARTICULAR PURPOSE AND WARRANTY OF NON INFRINGEMENT OF INTELLECTUAL PROPERTY ARE EXPRESSLY EXCLUDED TO THE MAXIMUM EXTENT ALLOWED BY LAW AND DIRECTED NEITHER ASSUMES ...

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