20 Most Recent JBL CS 60.4 Car Amp Questions & Answers


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


Use a C or D size battery. Get two pieces of wire. Strip each end. Wire one end of each to the sub. The other ends you will place one on the top of the battery and, one on the bottom of the battery. If the cone moves outward, you have the correct polarity. If the cone moves inward(toward the back of the speaker) then you have the polarity backwards

JBL Car Audio &... | Answered on Jul 03, 2015


try checking your speakers and/or speaker wires for grounds or shorts. If they check out fine, you have an internal problem with the amp, more than likely blown transistor(s).

JBL Car Audio &... | Answered on Jun 01, 2015

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