Jl audio hd 900/5 red flashing light - Jl Audio E1200 Car Audio Amplifier

Check for a speaker wire that come come of , Or a loose grond wire on the amp or where ever you have the ground wire connected two,

I think you might have your remote turn on from your deck to amp hooked up wrong check that out!! I not are you familliar with the mr. butterworth crossover JL developed for that series of amp? Just like its big nrother the 1000x1 class D the built in smart crossover has many built in pretect modes. If your subs are drawing to much power it shuts down if they draw to little of ohms or to many but that 500 is 1 ohm stable so download the crossover settings from JL and go from there

Your amp is in protection mode perhaps due to mismatched impedance? Try to set up your speakers to run in 2 to 4 ohms. Here is a link that shows you how to hook up the wires properly: http://www.crutchfield.com/S-cgSECUmngLm/learn/learningcenter/car/subwoofers_wiring.html

TL

This happens when the amp goes into protection mode. 90% of the time, it means there is a short or has another issue inside the unit and has to be fixed or replaced. Hope this helps and good luck!

is there a green light? does it go red? the unit could be auto-protecting from your speakers, are they old speakers?

Did you attach an earth lead to the cars bodywork?

I would try running the subs in parallel. Pos to Pos Dual Voice, Neg to Neg Dual Voice. Then Run + to + stereo - to - stereo on both channels.
So you have + and - running to one channel and + and - running to the other channel.
Also your LPF filter could be set too high.

it sounds like you have a bad ground make sure its on the frame or body and any rust or paint is scraped off

hi, have you figured out whats wrong with ur amp ...i have the same amp ....and as soon as i finished the connections ...and connect the remote on wire,,, the amp goes on ...making a ticking sound with the green light blinking and the red light staying solid on ...whats the problem please help ....how can i fix this ......my amp is a jl e6450 ....im using a panasonic cd player with a built in amp ....and thats the cd player im trying to connect to the jl amp ...please HELP