running dvc sub parallel on a bridged channel

[jim300684]

amp specs:
@4ohm 4x100wrms
@4ohm bridged 2x300wrms
@2ohm 4x150wrms

im new - dunno if this question has been asked -

???? can i bridge a channel and run a single dvc sub in parallel ????

Example:
if i bridge a channel (300wrms p.c), can i then wire a 4ohm(2ohm+2ohm) dvc sub in parallel (to itself) to make a 2ohm load on the amp?

is that possible? if so, what wattage, rms would a bridged channel @2ohm give in this situation?

(I want to bridge 1 channel, and have the other 2 channels @2ohm for 2 speakers to get the extra 50wrms p.c output that a 2 ohm load can give)

thanks

[Haibane]

your trying to do too much to a 4 channel amp, they are not made for that. If you just want to use one amp in your system, look into a 5 channel. You will not be able to bridge and run parallel without some serious heat from the amp and most likely blowing it.

[SilverJLEclipse]

For that amp you need to have the amp "see" a 4ohm load when in bridged mode, running it bridged at 2ohms would most likely send the amp into protection. If you are dealing with a sub that has dual 2ohm vc then you should wire them in Series to acheive the 4ohm needed. Most 4 channel amps can handle a sub considering they have low pass filters and bass boost features.
Good luck finding some 2ohm fronts, the added power (it takes double the power to increase output by 3dB) is really not worth the limited choices versus 4ohm speakers available.

[bumpinstang77]

You can't run that sub off of that amp your ohms will be too low in bridged mode and your amp, if not go into protection, will overheat. Can you return the sub and get a dual 4ohm? you could run each vc to each channel on the mp, but you have to make sure that you have a mono signal comming through b/c your vc's have to get the exact same signal. A better option would to get an amp (2 ch. or mono) that gives you your desired wattage at either 1 ohm (parrallel) or 4 ohms (series). I would reccomend getting a new amp over getting a new sub and running each coil to each channel b/c its too easy to mess your sub up.

[sr20de4evr]

Originally Posted by bumpinstang77

You can't run that sub off of that amp your ohms will be too low in bridged mode and your amp, if not go into protection, will overheat. Can you return the sub and get a dual 4ohm? you could run each vc to each channel on the mp, but you have to make sure that you have a mono signal comming through b/c your vc's have to get the exact same signal. A better option would to get an amp (2 ch. or mono) that gives you your desired wattage at either 1 ohm (parrallel) or 4 ohms (series). I would reccomend getting a new amp over getting a new sub and running each coil to each channel b/c its too easy to mess your sub up.

that amp will work fine

Wire the coils in series to a 4ohm load, bridge 2 of the channels and hook the sub to it. The sub will get 300rms off of the rear 2 channels bridged, and then you have the front 2 channels powering your front speakers.

Forget about getting some 2ohm components though, that will cut out probably 99.9% of all the speakers out there, you will only be left with a very very very limited selection. Screw the extra 50rms and get a set of speakers that will make you happy.