Amp Testing

[smms25 10+ year member]

So I installed a Pioneer AVH-P4000DVD, in my 08 mazda and am in the process of installing amp/sub I have Alpine MRD-300 mono and MTX T4512 SVC, I am getting no output whatsoever, but my amp powers up great. No error codes, and getting 14.3-14.4 V... I have already checked my connections, and they seem to be fine. Is there a way I can check the speaker out from the amp (+ and - terminals) to make sure they are sending a signal? Or what other things need I check

UPDATE: Just pulled the headunit out, and the RCA's are snug, so no problem there - unless I have bad RCA's but they were brand new -

New question: Even though the pioneer avh doesnt have a specified sub pre-amp output, would the amp be able to still send the bass signal to the sub (the reason I ask is maybe the preamp outputs I have the RCA's in now could be bad)

Any other things I could check before I go and get a new amp or sub??

Click to read more...

 

[smms25 10+ year member]

UPDATE: bump

 

[x1le 10+ year member]

Just throwing the idea out there, but did you search the menu's on your pioneer? It could be as simple as your sub output set to off.

 

[smms25 10+ year member]

Yeah, I checked that. Here's a list of everything I have done/checked:

1) checked headunit to make sure subwoofer turned on

2) checked amp for error codes and voltage

3) checked RCA's in back of headunit

4) checked all connections on amplifier

5) used new wire and connectors from amp to sub box terminal, and from terminal to sub

6) checked to make sure safe mode was off