Question about JBL CS300.1 Subwoofer Mono Amp - 200W CS Series 300 Watts @ 2 ohms Car Audio Amplifier
My JBL amp is hooked up correctly but when I start the car sometimes the amp will come on and sometimes it wont. When it does it only stays on for a couple seconds, and i get no sound for those seconds its on. What is the problem?
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Posted on Jan 02, 2017
You can connect them in a series/parallel configuration. Put two of them in series and then connect the last one in parallel across the two in series. This would give you an impeadance of around 2.7 ohms. Only do this if your amp is stable at 3 ohms or less. I am not familiar with the specs of your amp. If your amp is only 4 ohm stable you can not do this.
This would also give you half the power on the two subs in series as the power for the one that is parallel. The two in series would be sharing the total output signal, where-as the one in parallel would get the entire output signal from the amp.
if you were to connect a fourth sub woofer in this configuration it could give you a 4 ohm load, by adding the fourth sub in series with the single sub that is in parallel. or in other words, yu have two sets of 2 sub woofers each in series. That gives you two 8 ohm loads (two 4 ohm subs in series is 8 ohms). Then you take the two sets of subs and parallel them (two 8 ohm loads in parallel equals 4 ohms).
If i had a picture to show you it would make sense, two subs in series that are in parallel with two subs in series.
Posted on Jun 16, 2008
The blue wire to your amp (remote signal wire) needs to be connected to the red power lead for your deck. Right now it sounds like you are connected to constant power on your signal wire.
Posted on Apr 04, 2009
SOURCE: JBL GTO 301.1ii protect mode
Check the voltage at the amp. It's possible that the voltage is either too high (above 16V) or too low (below 8.5V). Also make sure that the amp case is not grounded. If these check out OK, the most likely cause is that the amp itself is defective and requires service.
Hope this helps.
Posted on May 27, 2009
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