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Output power for my amp


Mr. Phil

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I just got my Carvin R600 head. I run it through an Avatar 2x10 w/ tweeter and an Avatar 1x15. Both speakers are 4 Ohms.

My amp's power rating is (in unbriged Full range mode) 175w/175w @ 8Ohm, 250w/250w @ 4Ohm, 300w/300w @ 2Ohm. In bridged mode the power is 500w @ 8Ohm, and 600w @ 4Ohm. 4Ohm is the minimum for briged mode.

My question is, what is the power that I am pushing through my 2 4Ohm cabs? What is the total Ohms that they add up to? I dont think I can run them in Bridged, cuz the amp goes into protect mode when I try to. I search the back threads, and I am even more confused then I was before.

Please someone who knows what all this stuff means, HELP ME!!! :freak::confused:

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You need to run your cabs in stereo mode -- 250W per side. This gives you more control than birdged mono, since you could vary the volume of each cab to better suit the rehearsal or gig space.

 

Or you could run the cabs series, making the impedance 8 ohms. Then you'd get 500W into 8 ohms bridged mono, meaning each cab would receive 250W...might as well stick w/ stereo for greater control and the same power! (Plus hooking cabs up in series is a pain in the butt.)

spreadluv

 

Fanboy? Why, yes! Nordstrand Pickups and Guitars.

Messiaen knew how to parlay the funk.

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Does Daisy-Chaining the speakers affect the impedance? If so, how?

 

Also, the amp has a separate output for low frequencies and nother for Highs. So i naturally hook the 2x10 to the high and 1x15 to the low. Would that still make the total impedance 2Ohms?

 

And if I understand this correctly, the a 4Ohm cab + another 4Ohm cab = 2Ohm So that makes my outpu 300 per cab. [300w/300w]

:confused::confused:

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Originally posted by phil6006:

And if I understand this correctly, the a 4Ohm cab + another 4Ohm cab = 2Ohm So that makes my outpu 300 per cab. [300w/300w]

:confused::confused:

First breathe, then read. :)

 

When you look at the back of your amp, think about like two SEPARATE AMPS.

 

You're hooking up the 2x10" to one amp. It's a 4 ohm load, so you'll give it 250 watts.

 

You're hooking up the 1x15" to the other amp. It's a 4 ohm load, so you'll give it 250 watts.

 

If you hook the two amps together, you would "bridge" them. However, with your current speaker setup, it's not useful to do so.

 

Also, as a hint, run the amp in full-range mode (not biamp). This is my personal preference, and others may disagree, but the modern speaker cabinets sound a lot better full-range instead of bi-amped. It's a waste of speaker to give the 1x15" frequencies under 800 Hz and a waste to give the 2x10" speakers only the frequencies above that.

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I'm with getz76 when it comes to going full-range. The new cabinets have good built-in crossovers and you should feed them that good power straight across the board.

 

Wally

I have basses to play, places to be and good music to make!
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