20 Most Recent Jl Audio e1800D Car Audio Amplifier Questions & Answers

That is a capacitor, value 0.1uF, 100 volt rating.

Check the connections to the amplifier. Make sure that the insulation

for all wires has been stripped back far enough to allow a

good contact area inside the terminal block.

Check the input connectors to ensure that they all are making good

contact with the input jacks on the amplifier.

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

Specs say it depends on the impedance of the speakers. https://www.jlaudio.com/products/jd250-1-car-audio-amplifiers-98360 https://www.google.com/search?q=jl+250%2F1+amp.+Wiring+diagram ..

sounds like the amps not rated for the resistance tha subs have it running at....are they a dual 2 or dual 4 ohm?is the amp rated for 1ohm? sounds like amps going into protect mode

Sounds like you either shorted something out or overloaded the amp. Is there any odor coming from it? If so It will need to be repaired or replaced. What did you have connected to it and how was it wired?

You will need to open it up to see if anything damaged. That does not look good at all from the outside.

In your world, what does best results mean to you. how are the hifonics mounted? open air, closed box, vented box (optimized to what freq)? trunk or inside vehicle? all these variations weigh heavily on your configuration. As does what 'best results" means to you.

Check your ground to make sure it is properly grounded

Disconnect all the speakers one at a time and see if it stops doing that, if it does you have a shorted speaker or wiring