Burned amp... cause?

[bmtsr.80]

So I had this power acoustic 7500 watt monoblock hooked up to a single 12" 3000 watt skar worked great for almost 2 months...until it didn't lol. Was wired 1 ohm never normally got hot all the sudden it blew the **** out of a capacitor and smoke others. Was this because of cheap components?

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[Bobbytwonames 5,000+ posts]

Probably. You sent it to clip city for a vacation that it would never come back from.

 

[Clifff150 10+ year member]

What did your gain look like on the amp? Agreed with Bobby that you visited clip city

 

[bmtsr.80]

Probably. You sent it to clip city for a vacation that it would never come back from.

So gain was less than halfway (the pic is not all the way up lol)

 

[Popwarhomie 5,000+ posts]

I like how the board says MD1500 but PA claims 7500 watts.

 

[Grimmjoww]

I'm not an amp guru by any means. But when a capacitor fails it's normally from incorrect current, too much resistance, or overheating. I have my sfb600 tuned for 500w and the gain is a hair less than a 1/4 for the required volts. The location of the gain knob means nothing to volume, you want correct power short of clipping. You probably already know this, just wanted to throw it out there.

 

[djdilliodon!]

Could of been a dud but most likely my guess is low voltage.

 

[bmtsr.80]

Ok great that's what I'm looking for I have basic knowledge just want to know what happened so I don't do it again so ever suggestion helps!

 

[ThxOne Premium Member]

I have to agree with Pop on this one. The board says 1500 and PA is not known to tell the truth about power ratings. That Skar however probably can handle 3kW. Which it never got close to getting.

 

[bmtsr.80]

I like how the board says MD1500 but PA claims 7500 watts.

Yeah it didn't even dyno close to that which I knew before buying lol but it was enough to push that 54lb 12...until it wasn't.

 

[Bobbytwonames 5,000+ posts]

So gain was less than halfway (the pic is not all the way up lol)

Why is your bass boost turned up? Bass boost at zero.

 

[Bobbytwonames 5,000+ posts]

If I'm not mistaken then this should be at zero. Bass boost off.

 

[bmtsr.80]

If I'm not mistaken then this should be at zero. Bass boost off.

View attachment 38629

Ok that's good to know I want to avoid blowing a better amp lol glad it happened to a cheap one

 

[bmtsr.80]

I'm just dipping my toes in the water just passed the toy subs and amps I always had. This higher power new **** is all foreign to me lol. Previous subs and amps around 300-500 watts been looking for a bit more these days

 

[hispls 5,000+ posts]

一分钱一分货

Or roughly translated "you get what you pay for".