Question regarding amps and Ohms

[elsalvador182]

Searched through the forums could'nt find anything similiar.

Getting a pretty basic cheap setup, i just built a sealed enclosure for a 10'' dual voice coil audiobahn rated at 4 Ohms 300 RMS. Now according to ohms law I would need an amp that is rated at 2 Ohms.

If i use a 2 channel amp, 2 Ohms, 150 RMS per channel and use each channel to power a voice coil would this be acceptable? Would i have to ensure that the amp is producing a strictly mono signal so i dont scew up the sub?

I would try just bridging a 2 channel; but it seems most amps in my price range offer bridging at only 4 Ohms which would be unaccpetable for my single sub?

somebody clear this up for me please so i can buy an amp with peace of mind.

thanks

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[blackbonnie 5,000+ posts]

no you would need 150 rms at 4 ohms per channel. why dont you just go with a mono amp that is rated for 300 watts at 2 ohms?

 

[helotaxi 5,000+ posts]

Get a basic mono amp that will do 2-300 watts @ 2 ohms and call it good.

 

[DejaWiz 5,000+ posts]

Here you go:

http://www.millionbuy.com/kikzx3001.html

or

http://www.millionbuy.com/kikzx4001.html

 

[elsalvador182]

I ended up going for this one used off ebay:

Alpine MRV-100M

2 ohms 200W bridged but apparently it is said to be underpowered. I did get it for $44.00 so hopefully it wont ****.

thanks for the help

 

[Prowler573 5,000+ posts]

I ended up going for this one used off ebay:
Alpine MRV-100M

2 ohms 200W bridged but apparently it is said to be underpowered. I did get it for $44.00 so hopefully it wont ****.

thanks for the help

Mono (single channel) amps don't bridge. The term "bridging" means taking two separate stereo output channels and combining them into a single, more powerful output which outputs in mono.

It's simply rated to output that power (200w) when shown a 2 Ohm load.

For $44/shipped I'd say it was a good buy no matter whether it's a smaller monoblock or not. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif