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Need a 2 ohm power amp

Vakmere

Vakmere

Sep 6, 2007
2,168
49
Philly
www.smilesperhourphotobooth.com
#1
I have 2 Avatar bass cabs - 2x10' and the other 2x12's. Each are 4 ohms and 5oow. Using a BMAX-T pre with this also. Looking for a quality power amp to use that will go down to 2 ohms and sufficient wattage to boot. Who do you suggest or what make/manufacturer is a good one?
I have money so cheap brands will not due unless they have proven reputation.
 
#3
I have multiple QSC PLX models for my rig and PA.
All are pro-quality, reliable and weigh 21 pounds.
They will support 2 ohms in each channel, but it is not a recommended practice.

As noted above, a standard 2-channel power amp is the recommended solution.
An 4-ohm load, or higher, in each amp channel is much more amp-friendly.
 
#4
bgavin said:
I have multiple QSC PLX models for my rig and PA.
All are pro-quality, reliable and weigh 21 pounds.
They will support 2 ohms in each channel, but it is not a recommended practice.

As noted above, a standard 2-channel power amp is the recommended solution.
An 4-ohm load, or higher, in each amp channel is much more amp-friendly.
Click to expand...

So a QSC GX7 should be fine for this?
 
#8
BassmanPaul said:
When you series connect two cabinets with crossovers they can react poorly with each other. Using a stereo amp allows for the different levels from the dissimilar cabinets to be accounted for.
Click to expand...

Looking to keep it simple gentlemenn. Names of respected amp companys (eg., SWR, QSC , etc) with 2 ohm amps will be sufficient. I do appreciate the technical aspects and your knowledge however rewiring and all that is not necessary. ;)
 
#10
Vakmere said:
Looking to keep it simple gentlemenn. Names of respected amp companys (eg., SWR, QSC , etc) with 2 ohm amps will be sufficient. I do appreciate the technical aspects and your knowledge however rewiring and all that is not necessary. ;)
Click to expand...

CL400Peavey said:
Peavey IPR 1600. Save your back and your wallet.
Click to expand...

bgavin said:
I have multiple QSC PLX models for my rig and PA.
All are pro-quality, reliable and weigh 21 pounds.
They will support 2 ohms in each channel, but it is not a recommended practice.

As noted above, a standard 2-channel power amp is the recommended solution.
An 4-ohm load, or higher, in each amp channel is much more amp-friendly.
Click to expand...

These names are not reputable?

Also the reason why there is a bit of tech talk thrown in is that you shouldnt be running a 210 and a 212 in parallel with each other. The 210 will have less power handling and will run out of steam before the 212. Running them on their own channels will be safer operation if you are pushing the cabs.
 
#11
well if money is no object and you want big power get the Crest Pro9200. 2200 watts per side @ 4ohms. That should drive those cabs real nice. ;)


:eek:


in seriousness though as CL400Peavey said you don't want to run those 2 cabs parallel. I'd ditch either the 210 or 212 and get a matching cab but that's me and my ears.

I'll also give a shout to the QSC RMX1450. it's a good, solid amp at a good price (especially used).
 
#12
bassguppy said:
well if money is no object and you want big power get the Crest Pro9200. 2200 watts per side @ 4ohms. That should drive those cabs real nice. ;)
Click to expand...

I know this was said in jest however it does raise a point for consideration. Most venues have limited power available on the stage. Buying a huge power amp is one thing BUT if you can't plug the thing in anywhere it's not going to do you much good. Anything more than in the region of 1500W total output should be thought about seriously.
 
#13
BassmanPaul said:
I know this was said in jest however it does raise a point for consideration. Most venues have limited power available on the stage. Buying a huge power amp is one thing BUT if you can't plug the thing in anywhere it's not going to do you much good. Anything more than in the region of 1500W total output should be thought about seriously.
Click to expand...

+1

Line voltage limitations are very real depending on how much air you are trying to push.
 
#14
CL400Peavey said:
+1

Line voltage limitations are very real depending on how much air you are trying to push.
Click to expand...

At my job we run a powered board and two power amps in the 1200-1500w range for our house sound of two mains, two monitors, and a single sub. If you get careless and turn them on at the same time, it blows the 20A breaker. That's a real danger in most smaller venues if you've got other amps on the same circuit as a big power amp.
 
#18
Vakmere said:
That works for me. Final question would be : is it advisable matching the stereo output , wattage wise, with each speaker cab wattage? Eg., 500w per side stereo?
Click to expand...

Just about any amp can be used with any cab. Most cabs have a thermal power rating, which has little to do with how much power they can handle depending on your EQ. Just use your ears, if your cab sounds like its farting, turn down that channel.

~J
 

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