Help with chosing an amp and hooking it UP.
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Bronze Member Username: OtashNYC, NY Post Number: 18 Registered: Nov-04 | Hello guys, i've got '05 Jeep Grand cherokee, with premium sound system (Boston Acoustics with 280W factory amp as it says in the manual). Recently i bought 2 new pairs of speakers - 6x9 Infinity reference (3 way, nom rms 100W, 4ohm) and 6.5 round Infinity reference (component, nom rms 90W, 4 ohm), got it installed and i dont like the way they sound  , first of all the front speakers give me only base, and the whole system sound worse than before. So i guess i need to change the amp. What power amp should i get, i dont want to spend more than 200 bucks, but i want to get smth good brandnamed  , and should i do the new wiring to it? i think the old wiring will do good? the factory amp is in the trunk anyways so can i use same wires?. and also how should i use the pinouts? http://wkjeeps.com/wk_audio_pinouts.htm .Do i also need to change the front instrumental panel speaker? Thanx in advance. |
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Silver Member Username: Nd4spd18Southeast PA Post Number: 898 Registered: Jul-06 | The problem you're having is most likely due to the crossovers in the factory system. A new amplifier may fix it if the X-overs are in the factory amp. You will need to either get an amp with high level inputs, or get a line out converter. Also you will need to find out if any equalization of the audio signal is done in the headunit. If it is, you would need a device like this to fix it: http://mobile.jlaudio.com/products_cleansweep.php?prod_id=369 |
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Bronze Member Username: OtashNYC, NY Post Number: 19 Registered: Nov-04 | ok, but what power amp do i need? my friend told me that i need an amp with at least 4X100 at 4 ohm. is it true? |
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Bronze Member Username: OtashNYC, NY Post Number: 20 Registered: Nov-04 | ok, but what power amp do i need? my friend told me that i need an amp with at least 4X100 at 4 ohm. is it true? and how do i test what kind of signal does the headunit sends to amp? I was looking on the web for specs, but couldn't find anything |
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Silver Member Username: Nd4spd18Southeast PA Post Number: 909 Registered: Jul-06 | Yeah thats right. And you can't really test it. Replacing the amp will most likely fix it. But if it doesn't you would have to also replace the headunit. |
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Bronze Member Username: OtashNYC, NY Post Number: 21 Registered: Nov-04 | i cant replace the head unit it has navigation in it. will it harm amp or headunit if i hook it up without testing? |
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