Alpine PDX-5 First impression

[HNaga 10+ year member]

I've just installed Alpine PDX-5 to replace JBL CS60.4

JBL was powering 2 speakers with 100 RMS and bridged to power Infinity sub

with 300 RMS

The gain is set to 100% for both speakers and sub.

I felt a difference in speakers , but I didn't feel a difference in the sub.

The Sub is in a Tube box (I didn't manage to get a sealed one yet).

THe HU which is Alpine CDA-9887 is imprinted and Sub is set to 10

bass to 5 tweeters to 5.

I do't know but I expected a big difference in sub after powering from 160 to 300 RMS.

May be I was over expecting, what do you think?

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[jmanpc 5,000+ posts]

Um, why are the gains cranked? Bad idea.

 

[RAM_Designs 5,000+ posts]

Gains should NEVER be at 100%, no matter what. You will never ever have to have them up all the way to get full power out of your amp...I have mine turned all the way down.

 

[HNaga 10+ year member]

setting gain to 100% is just for testing , I usually set it to 75% or according to speakers limits.

BTW I saw many time , amp birth sheet , how to do it?

 

[jmanpc 5,000+ posts]

Digital Multimeter. Buy one.

 

[HNaga 10+ year member]

Digital Multimeter. Buy one.

I have one , but will not be useful with 100 RMS speakers

As far as I know Digital multimeter is used with amp more powerful than speakers.