Alpine PDX AMP Speakers Cutting Out (PDX4)

cemerton

Junior Member
As with most amps, it is very possible to set your gain too high. I had my gain set to 1/4 up on my Alpine PDX-4 and sometimes I had channels dropping when pushing my 6.5's. In fact, I had to have one of my JL C5-650s repaired as a result of pushing too hard at 1/4 gain with that Alpine amp. Solution: set the gain all the way down.

Why set the gain all the way down? It relates to the head unit. My RCA's are coming from a Pioneer AVH-P4400 preamp output and that means: 4volt RCA's. I don't know everything about that Alpine, some of you might, but I am pretty sure that a gain set all the way down would be perfect for a 5volt RCA connection. So I am playing it safe because sometimes I like to crank my system all the way up w/ crossovers set to 80. My 1000/1 is set exactly to the 3/4 volume voltage per JL's instructions (w/ a 12w7), so cranked all way up, my entire system is generally still out of the red zone. Another consideration is that my JL 6.5's are rated @ 75rms (the Alpine @ 100rms). Why press my luck?

 
Last edited by a moderator:
What in the WORLD are you talking about? The is the first time I've been online reading through forums and felt like a post completely wasted every second of my time as I read through this mess. What exactly are you saying or trying to ask?

 
Activity
No one is currently typing a reply...
Old Thread: Please note, there have been no replies in this thread for over 3 years!
Content in this thread may no longer be relevant.
Perhaps it would be better to start a new thread instead.

About this thread

cemerton

Junior Member
Thread starter
cemerton
Joined
Location
Tampa
Start date
Participants
Who Replied
Replies
1
Views
1,161
Last reply date
Last reply from
Jdm94Coupe
IMG_20260516_193114554_HDR.jpg

sherbanater

    May 16, 2026
  • 0
  • 0
IMG_20260516_192955471_HDR.jpg

sherbanater

    May 16, 2026
  • 0
  • 0

New threads

Top