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First and foremost, an user manual of Precision Power PPI4240 should contain:
- informations concerning technical data of Precision Power PPI4240
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- rules of operation, control and maintenance of the Precision Power PPI4240 item
- safety signs and mark certificates which confirm compatibility with appropriate standards
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Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of Precision Power PPI4240 alone are not enough. An instruction contains a number of clues concerning respective functionalities, safety rules, maintenance methods (what means should be used), eventual defects of Precision Power PPI4240, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Precision Power service. Lately animated manuals and instructional videos are quite popular among customers. These kinds of user manuals are effective; they assure that a customer will familiarize himself with the whole material, and won't skip complicated, technical information of Precision Power PPI4240.
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Table of contents for the manual
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Page 1
Thank you for choosing PPI audio epuipment. Now , HANG ON! PPI products ar e engineered and manufactured to deliver a wild ride of perfor mance, sound quality , and reliability . This PPI product r eflects our commitment to offer you versatility and quality for years of incr edible power and listening enjoyment! SERVICE Do not attempt to service PP[...]
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1 4-W ay/5-W ay V ariable Crossover with RCA Outputs QBASS™ Bass Boost Balanced Differ ential Input Circuit Speaker Lead High Level Inputs High V oltage Input Capability Gold Plated RCA, Speaker and Power Connectors Mixed Mono/Stereo Operation PPI4240 . . . . . . . . . . . . . . . L: 285mm/11.22” W: 256mm/10.08” H: 62mm/2.44” PPI5440 . . . [...]
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Page 3
2 PPI4240 30W x 4 Channels @ 4 Ohms 60W x 4 Channels @ 2 Ohms 120W x 2 Channels @ 4 Ohms Bridged PPI5440 30W x 4 Channels @ 4 Ohms + 120W x 1 Channel @ 4 Ohms 60W x 4 Channels @ 2 Ohms + 200W x 1 Channel @ 2 Ohms 120W x 2 Channels @ 4 Ohms Bridged + 120W x 1 Channel @ 4 Ohms PPI4240 Fr ont V ariable 12db/Octave FULL/HPF/LPF 20-5kHz Rear V ariable 1[...]
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Page 4
3 The following formula is a guide to deter mine current draw so you can choose the proper gauge power cable and fuses for your system. A 50% amplifier efficiency rating is used as an average. (T otal 4-Ohm rate RMS output x 2) x 2 = T otal Input Watta g e T otal Input Watta ge/Supply V oltage = Current Draw (in Amps) Example: Y our PPI4240 is 30 w[...]
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4 Bef ore beginning, disconnect the negative (-) terminal of the batter y pr ior to working on the positive (+) terminal to pre v ent a shor t to ground. This is impor tant, unless you w ant to spend the rest of your lif e with a nic kname lik e "Spar ky ," or "Smok ey ." Reconnect the negativ e ter minal only after all connecti[...]
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Page 6
5 Remote T urn-on Y our head unit should have a lead marked ‘r emote’ or ‘ power antenna’ which will be used to turn on your amplifier . Extend this lead through your vehicle along with your RCA signal wires. Strip 1/4 inch of the insulation of f the wire and insert the end into the corresponding terminal on the amplifier . Grounding Locate[...]
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Page 7
6 1. Batter y Power Connect the 12-volt constant power cable from the battery her e. 2. Remote Connect the remote turn on lead from you sour ce unit here. This connection will turn the amplifier on when the source unit is powered up. 3. Ground Connect your ground wir e here. Make sure you use the same gauge wire as your power cable. 4. Power LED Th[...]
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7 All PPI amplifiers are capable of being bridged into a 4-Ohm mono output without switches or bridging modules. This in turn allows you to run Full range or component speakers and a subwoofer of f one PPI amplifier . (using passive crossovers) Y ou can achieve this mono channel by using the Left positive (+) speaker connection and Right negative ([...]
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Page 9
8 1. Fr ont RCA Input Plug in the front RCA cables fr om the source unit or PPI signal processor her e. 2. Rear RCA Input Plug in the rear RCA cables fr om the source unit or PPI signal processor her e. 3. RCA Outputs Plug in the RCA cables here to send signal to a second amplifier . This output can be Full Range, High Pass or Low Pass accor ding t[...]
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Page 10
9 9. Rear X-Over Freq Select the rear cr ossover frequency here. The detented contr ol moves clockwise from 20Hz to 5kHz. Use the chart on page 20 to select the desired cr ossover frequency . 10. Rear Gain Control Use this control to match the output level of the head unit to the amplifier . 11. Fr ont X-Over Switch Select the desired cr ossover se[...]
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10 1 2 3 4 5 6 7 8 9 10 14 15 16 17 18 11 12 13 19 20 1. Fr ont RCA Input Plug in the front RCA cables fr om the source unit or PPI signal processor her e. 2. Rear RCA Input Plug in the rear RCA cables fr om the source unit or PPI signal processor her e. 3. Subwoofer RCA Input Plug in the subwoofer RCA cables from the sour ce unit or PPI signal pro[...]
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Page 12
1 1 9. Rear X-Over Freq Select the rear cr ossover frequency here. The detented contr ol moves clockwise from 20Hz to 5kHz. 10. Rear Gain Control Use this control to match the output level of the head unit to the amplifier . 11. Subwoofer X-Over Freq Select the subwoofer crossover fr equency here. The detented contr ol moves clockwise from 20Hz to [...]
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Page 13
12 1. Adjust all amplifier input gain controls to just above minimum sensitivity (fully counterclockwise). 2. Using the cleanest source (CD), with music playing turn up the head unit until you can hear the music begin to distort. Now tur n it down a bit until you cannot hear the distortion. 3. Increase the Amplifier gain (clockwise) until the onset[...]
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13 For extra BOOM from your system, we’ve developed the QBASS™ bass contr ol cir cuit. The QBASS™ control is located to the left of the cr ossover switches and allows you to add up to 12dB of boost center ed at 40Hz by r otating the contr ol clockwise. This circuitry is capable of eliminating noise radiated into your signal cables by up to 40[...]
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14[...]
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Page 16
15 System One System T wo[...]
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16 System Three[...]
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Page 18
17 System Four[...]
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Page 19
18 PPI4240[...]
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Page 20
19 PPI5440[...]
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Page 21
DETENT XOVER FREQ 1 20 Hz 2 21 Hz 3 21 Hz 4 21.5 Hz 5 22 Hz 6 23 Hz 7 24.5 Hz 8 26 Hz 9 27.5 Hz 10 30 Hz 11 32 Hz 12 35 Hz 13 39 Hz 14 43 Hz 15 49 Hz 16 56 Hz 17 64 Hz 18 73 Hz 19 80 Hz 20 88 Hz 21 100 Hz 22 114 Hz 23 134 Hz 24 160 Hz 25 196 Hz 26 260 Hz 27 320 Hz 28 368 Hz 29 432 Hz 30 496 Hz 31 608 Hz 32 752 Hz 33 864 Hz 34 1008 Hz 35 1200 Hz 36 [...]
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Page 22
This warranty gives you specific legal rights, and you may also have other rights which var y from state to state. PrecisionPower , Inc. (PPI) war rants its products to be fr ee from defects in materials and workmanship under normal use and service for a period of three (3) years from the date of original purchase when the unit is installed by an A[...]