Power at speaker driver question

[TRichardsbass]

Okay, my brain currently hurts, so help me guys.

I have a 4X10 cab that has 1000W handling at 8 ohms, each speaker has a 250W driver.

I have a 1X15 cab that is 300W at 8 ohms.

My amp is 350W at 8, 500 at 4.

So, if I hook the two cabs up in parallel, I'm at 4 ohms, and therefore at max my amp is putting out 500W.

In my head, which as I said my brain is currently fried, each cabinet when hooked up in parallel is only seeing 250W.

Therefore, if my 1X15 has a 300W driver rating, I'm still well below overdriving it.

Is my thinking and engineering calculation correct?

 

[Plstrns]

Numbers, yes.

Actually, no. Most speakers will crap out at about 1/2 their rated max.

 

[TRichardsbass]

Numbers, yes.

Actually, no. Most speakers will crap out at about 1/2 their rated max.

Okay, so then at least my calculations are correct. Makes me happier.

tom

 

[billfitzmaurice]

Is my thinking and engineering calculation correct?

It's moot, as what limits your cabs capacity is the driver displacement, not thermal power ratings.