20 Most Recent JBL GT4-10 Car Subwoofer Questions & Answers


Depends on what output your stereo is. If you underrate the speakers (speaker watts is less than stereo output), the unit will sound louder for a while, then you end up blowing your speakers with the excess distortion. If you overrate the speakers (speaker watts is higher than stereo output) the speaker will not operate correctly and the distortion can damage it also. Its best to get a close match. Slightly higher is better. It is important you know actual wattage output not PMPO ( Peak music power output) A lot of stereos are rated at PMPO. The higher number sounds great but in reality, the figure is the MAX output and by then the sound is distorting badly. Distortion ruins more speakers than anything else...

JBL GT4-10 Car... | Answered on Oct 18, 2013


kennwood 1200 watt 4 channel

JBL GT4-10 Car... | Answered on Feb 04, 2011


No user serviceable parts! If not working just replace!

JBL Car Audio &... | Answered on May 14, 2020


Bad or shorted voice coil on sub maybe. If you have two subs try them one at a time to see if it goes into protect mode. Whatever sub does it is bad.

JBL Car Audio &... | Answered on Oct 04, 2016


It is very dependent on your vehicle and whether you are using the built-in amp of the head unit or a separate amp. Ideally, I would recommend a good 6.5" component set.

JBL Car Audio &... | Answered on Sep 20, 2016


You need to calculate the amount of amps being driven through that fuse + the amount you need to feed the amplifier.
In my Volvo S40 and V70 I had no problems driving an amplifier of the rear power connector, but on my Honda S2000 however I had to create a different connection all the way to the battery line for a smaller amp (connection as in cables, condensers/filters and fuses).

JBL Car Audio &... | Answered on Feb 22, 2016


single channel about 1kW output power. About $250 when new.

Specs here
http://www.crutchfield.com/S-dVhyYWWFkBd/p_115GTO1201/JBL-Grand-Touring-Series-GTO1201-1-II.html

JBL Car Audio &... | Answered on Aug 26, 2015

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