2v preouts from deck want to make them higher voltage for amp
I have a pioneer deck with only 2 volt sub out and left and right. my amp is hifonics with up to 9v gain i want to raise voltage from sub out to get closer to the 9v i non amp how would i do that without getting new deck
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Most car audio devices (like head units and amps) require a REM (remote) line to be connected to a switched power connection. This switched power is on when the car key is set to ON or Accessories.
Not knowing what Sony unit you had, I can't be sure, but it is likely your Sony had higher voltage preamp outputs than the Kenwood, as the KDC315 has 2V outputs.
The B+ terminal on the amp goes to the Positive battery terminal with a fuse inline probably at least 60amp for this amp. The GND terminal of the amp goes directly to the chassis of the vehicle (metal) and try to keep the ground 18" or under. The REM terminal of the amp goes to the remote turn on wire from your deck, usually the BLUE wire. Some decks have 2 one for an amp one for a electric antenna. Dont hook it to the power antenna wire or your amp will only work when the radio is on. Won't work with the cd player. Hook the left and right inputs (rca) to your source unit (deck). Hook your speakers to the left and right channels of the amp with the correct polarity (+) (-) . Set the cross over on the amp HP-AP-LP for what ever application you are using it for like subs or components. There is a frequency adjustment for the crossover on the opposite side of the amp. This should be set in accordance with your crossover selector and speaker requirements. The punch bass knob should only be used with a subwoofer application. The left and right gain turn up or down the gains of the amp. (power output) These are set depending on the output voltage of your preouts (RCA) on your deck. A small flat head screw driver can be used. Set them between 1/2 and 3/4 if you dont know but make sure they are the same. Your ready to go. Hope this helps.....
On most Pioneer's, there is an option in the main menu that allows you to turn the sub-out on or off. This must be on to let a signal pass from the head unit to the amp. Check this, and if it is on, try replacing the RCA cables. Let me know if this helps :)
Hi, just turn up the gain, though the max voltage may be higher, it does not mean the audible output is higher, alpine decks subwoofer control is an attenuator, so at max it will be the same level as front n rear, on min it is -15db... you will probably find the kenwood is +/- 7db so it has a gain boost...
just crank up the amp gains, problem sorted...
Pioneer usually use: red - 12 volt batt. ignition/acc yellow - 12 volt batt. memory black - ground blue - power ant. blue/white - amp turn on orange - illumination ( 12 volt light ) ( not all deck ) orange/white - dimmer ( not all deck ) gray - right front + gray/black - right front - white - left front + white/black - left front - violet - right rear + violet/black - right rear - green - left rear + green/black - left rear -
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1 Use MULTI-CONTROL to select SW CONTROL. 2 Press MULTI-CONTROL to display the setting mode. # Press BACK to return to the previous display. 3 Press MULTI-CONTROL to select the segment you wish to set. Press MULTI-CONTROL repeatedly to switch the segment in the following order: REAR SP (rear speaker setting)—PREOUT (RCA output setting) 4 Use MULTI-CONTROL to select the desired setting. Turn to change the setting. When REAR SP (rear speaker setting) is selected. REAR SP:SUB W(subwoofer)—REAR SP:FULL (full-range speaker) When PREOUT (RCA output setting) is selected. PREOUT:SUB W (subwoofer)—PREOUT:REAR (full-range speaker) # When no subwoofer is connected to the rear output, select REAR SP:FULL.
You need to match your amp's input voltage (the gain) to the output voltage supplied via your deck's preouts. Turn you radio up to normal listening level, and turn the amp's gain until you induce audible distortion then back it off slightly. Set the bass boost and crossovers to on and type (highpass for front/rear full range or lowpass for subs).