Possible for damaged/blown amp to only eliminate highs?

[funkyab 10+ year member]

Ok,

Im not in the states where my boat and system are so cant do the most basic tests to quickly figure this out. I had to leave the country quickly at the end of last season so didnt have a chance to determine this then either.

What happened:

I was running all 4 of my Soundstream picasso 6.5" 3 way speakers off of a profile ap600 which was giving each speaker 75rms at 2ohms. Levels were all set properly and i was far from clipping.

on one or 2 occasions, all of the highs and mid cut out of all of the speakers then promptly came back on. this was after running everything at 2/3 steam for about 4 hours in the hot sun. After i turned everything off and gave it a rest, everything was fine.

A couple of days later, all of the highs and mids failed to operate whatsoever, but the woofer was working fine.

I am fairly certain that none of the speakers are blown, because it would be VERY unlikely for all to blow at the same time, and also since I heard the cutting out of the highs perviously only to come back on.

So the question is,

has anyone ever had experience with a damaged amplifier causing this problem, or a similar problem?

Reason that I am saking now instead of waiting till i get home is, if i find a consensus that the amp is indeed fried,, ill just order a new one now so i can do all of my new seasonal upgrades all at the same time, as soon as i get back stateside.

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[funkyab 10+ year member]

bump^^^

 

[funkyab 10+ year member]

any similar experiences?

 

[NhustlaR 10+ year member]

not that i know of. Im not sure if an amp can be partially blown. I would check all electrical connections.... maybe water damage to something and it shorted out?

 

[funkyab 10+ year member]

yea, i didnt think an apm could be partly blown either, but strange for the higs on all 4 speakers to go out but the bass still remains. I know all my connections are good, but that still wouldnt account for the problem. Very strange indeed.

 

[2wheeler 10+ year member]

Sounds like a bad crossover. Are you using the crossover in the amp or somewhere else?

 

[funkyab 10+ year member]

you know,,,

that could definately explain things.. hmmmm. I am using the crossover on the amp.