Currently the subwoofer level can only be set from the gain dial on the amplifier. When I turn the volume on my radio to zero the sub still produces at the level set. I would like it to decrese and raise with the volume is that possible, or even to control it from a setting on the stereo? What speaker wire size is standard for amp to sub connection. Thanks.
The gain dial is not a volume control. The gain dial is used to compensate the output level of your car radio head unit. all car stereo units output are not alike. If you set this gain level too high, it will cause major distortion (clipping) to the audio output of you speakers when cranked up. This excessive distortion WILL eventually, or even quickly damage or blow your speakers.
I personally blown speakers this way no not properly setting this. (lesson learned, I guess :| )
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Yes on most alpine units this feature is available but the sub woofer has to be conected to the sub woofer input and if it's setup like this you can go to your audio menu on your alpine unit and turn it up or down I hope this helps.
I manage to slove to my DPX-U5120 Subwoofer level adjustment. In STANDBY mode, Press the Main Volume button and turn to Setting, turn until you find the SW Preout, Swith to normal mode, its won't work if u switch to REAR
Go back to CD/USB Mode, Then Press the Main Volume and find Audio Adjustment and now u can find the Subwoofer Level , Sub Phrase and Sub LPF adjustment.. Um Glad i found this and Happy Setting
You can not connect the subwoofer directly to your head unit. You need an amplifier installed to play the sub woofer. Asuming that there is an amplifier installed then:
If your head unit has an RCA output on the rear, connect that to the LINE IN of your amplifier.
Also there should be a Blue&White cable at the rear of the head unit.(amplifier remote) That should be connected the the remote terminal on the amplifier. (this will turn the amp on and off when the head unit turns on or off)
Hope this helps.
Subwoofer output: Hold the (AM-) button down for at least two seconds.
You can do this function when "SWPRE" in is set to .
The SWPRE (Switching Preout) Switches the preout between rear output ("R") and subwoofer output ("SW").
The DXZ375 has two sets of RCA outputs (1 red plug, 1 white plug) located on the back of the unit. The set with the white main wire is for a front amplifier, and the one with the black main wire is the rear. You want the black one.
I'm assuming you also have an amplifier for your subs and the necessary wiring. You will need to run a 12v+ from the battery to the amplifier, splice a power-on signal wire from the ACC Power wire on the stereo's wiring harness (red wire) as well as connect the amp to the stereo via the RCA outputs.
the connections to the amp seem to be all wrong .check the wiring again.Does your deck have a seperate sub woofer output ?If it does , just connect one sub, i repeat, just one sub,and see the output.
check the GAIN control on the amp.it should be 2/3rds of the max volume of the cd player.check it is not zero!
Set the amp to the L.P.F. position.
bye .happy listening.
Enter into the Audio Setup mode(press and hold volume button for at least 1 second). Next, repeatedly push the volume button until the display shows "2 ZONE". Make sure this feature is turned off. Hold the volume button again for at least 1 second to leave Audio Setup mode.
Now you need to make sure the Subwoofer Output is turned on. Do this by holding down(AM position) on the control knob(toggle stick) for at least 1 second. Each time the button is pressed, the Subwoofer Output is turned ON/OFF. the display should show "SW ON".
Next, you can go into Audio Control mode(press but do not hold volume button). Keep pressing on the volume knob until "Sub-WLevel" is displayed. Here you can adjust the amount of gain for the Subwoofer ranging from -15 to +15.
The sub outputs are simply lowpass filtered preamp outputs for use with a subwoofer amplifier. They supply a lowpass filtered signal for a subamp or 'powered subwoofer" like a bazooka tube. Test your "basstube" for 12 volt input power and make sure the "sub" setting on the radio is turned up too.