Audiophiles - Amp/Speaker Problem

[Hampton]

I bought 2 Klipsch AW-525 outdoor loudspeakers.

http://www.klipsch.com/na-en/products/aw-525-overview/

I drive them with this amp, Rockford Fosgate P500-2.

http://www.crutchfield.com/p_575P50...ORID575&searchdisplay=Rockford+Fosgate&tp=115

The amp is a factory refurbished amp. When I first bought them, we probably turned them up too high, but one way or another, after the amp warmed up, the bass speaker on the left side would "Rattle." On account of it only happening after the amp warmed up, I thought for sure it was an amp problem, so, I had the company send me a replacement. Before I installed it, I figured out that the speaker was blown, so, I sent the amp back in it's original, unopened wrapper and I replaced the speakers (old serial number indicated 2005 production - new one, 2009 production (guessing: 005-0000154 vs 009-0000371)).

Now, after a week, when the amp warms up, the left speaker (new) rattles in the mid range (not bass), even without turning it up very much. It doesn't happen on all songs, just certain frequencies. Volume doesn't matter. The obvious answer is that the amp is bad, right? Did the bad amp cause the first speaker failure? Is the second speaker bad?

Klipsch's have lifetime warranties. They had no problem replacing the first pair. What direction should I take?

 

[Kurt]

Do you have any other speakers in seris or parallel with the Klipsch?

Did you run heavy enough power cables pos and neg to the amp? This is a common problem on boats. You need the big stuff. What ever the speakers came with should be fine for the speakers.

Since the speakers are out in the open we tend to overdrive the amp so it sounds like you are not getting enough power to them. I don't know much about Klipsch, so I would recommend getting some JLs as usual.

 

[Hampton]

No other speakers on that amp, but PLENTY of power from 2 other amps sharing a 4g pair. The speaker wires are 14g - plenty. Only gets bad when warmed up. Klipsch are really good speakers, but I don't know about these.

 

[Kurt]

I have two Rockfords and one is the 500 but I have it bridged mono. They sit in a closed space with no air. They get warm but never hot. Rockford amps are known for being able to bake them and work just fine. But it is not all completly possible that it is failing. I have owned about 10-15 Rockford amps and never had an amp failure but many speaker failures when they are UNDER powered. I have one in both of my vehicles. I would at least try another amp. If the Rockford was refurbished it was probably baked on 550 rotisserie before you got it it. I would not buy any electronics refurbished IMO.

In my boat I have pos/neg 1-gauge cable that runs to a distribution block then 4 gauge off to the amps.

 

[Hampton]

I have two Rockfords and one is the 500 but I have it bridged mono. They sit in a closed space with no air. They get warm but never hot. Rockford amps are known for being able to bake them and work just fine. But it is not all completly possible that it is failing. I have owned about 10-15 Rockford amps and never had an amp failure but many speaker failures when they are UNDER powered. I have one in both of my vehicles. I would at least try another amp. If the Rockford was refurbished it was probably baked on 550 rotisserie before you got it it. I would not buy any electronics refurbished IMO.

In my boat I have pos/neg 1-gauge cable that runs to a distribution block then 4 gauge off to the amps.

Crutchfield has been awesome. I'm going to have them send me another one. Thanks for the replies.