Amplifier Output quesiton

[alphakenny1 10+ year member]

hey i have a quick question. just to give a little background i have an 4 ohm DVC IDQ and i was wanting to run an a/b amp to it. so my options are either 2 ohm or 8 ohm. there aren't many amps that are 2 ohm stable bridge unless i want to dish out cash for some expensive amps such as the DLS A2. but i dont want to so i was thinking of hooking it up to 8 ohms and bridging an amp.

so my question is if an amp is rated let's say 500 x 1 @ 4 ohms bridged and i hook up the amp to the sub which will be wired at 8 ohms, will i be getting 250 watts? i've seen some specs say like this one for example: http://cgi.ebay.com/Zed-Audio-designed-Lanzar-Opti-Drive-500-2-No-Reserve_W0QQitemZ5842791016QQcategoryZ18796QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

that @ 4 ohms mono it will put out 750 watts but at 8 ohms mono it will put out 500 watts. i would think that if you double the impedance you cut in half the wattage. any help is appreciated, thx.

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[bikejunkie223 10+ year member]

sometimes you can just run 1 voice coil and short the other, or leave it open- there are a ton of options- my Iridium was that way. What amp are you running now? If you want a sweet total system amp comparable to the Dls stuff (I have a boner for the A5) look at the xtant 403a- the sub channel easily handles a 2ohm load and it is clean and cheap, and refurbed from xtant for $200. These amps are pre MTX/mitek amps so they are still real quality units and the stainless steel is teh hotness.

http://www.xtant.com/direct/details.cfm?PN=403AR

 

[alphakenny1 10+ year member]

So are you saying that i could use just one voice coil? so just use the 4 ohm voice coil and hook it up straight to the amp and not even touch the other voice coil? also i know xtant is super sweet but its rated at like 200w @ 2 ohms bridged. i need a lil bit more than that but im sure they are underrated.

 

[bimma85 5,000+ posts]

depends on the amp wether it has a regulated ps or not. Look at some of the pg's and jl's. They have the same rated power from 1-4 ohms.