I.C.E. & ElectricalPost all your I.C.E. (In Car Entertainment) and wiring questions here. (Audio, video etc.)
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in theory it does work because an amp is just basically a varying ac voltage source
when an amp is bridged, there is one positive terminal where the voltage is positive relative to ground and one terminal has a negative voltage relative to ground
on a bridged amp, the positive and negative terminals in reference to each other will then have double the voltage than if they were in reference to ground...
now if you had two of those bridge channels and had them in parallel.....
the positive voltage terminal in parallel with the other exact same parallel signal/voltage you'd have the same voltage output but double the amperage capbility...same thing with the negative one...
now the only probs i see with running amps like this is if both parallel amps were not outputting exactly the same voltage...will there be a higher current going from one of the bridged channels to the other?
another prob i see is that if the EQ isnt set exactly the same, the frequecies might be slightly off and again there might be a high current going straight from one of the parallel channels to the other?
ok.. in theory it could and would work, and heres how youd have to set it.
first of all, youd need a multimeter and a test tone to get the exact same output voltage, secondly, youd probably want to bypass the onboard crossovers. also, lets say each separate amp was 4 ohm stable, your new bridged amp would only be 8 ohm stable.
thats assuming you can... thats why a lot of the larger class d amps claim to be "strappable" so one can do so...
Re: is it possible to bridge a 4channel to 1 channel mono?
Quote:
Originally posted by turboslug i can bridge my 4channel MTX Blue Thunder to 2 chanels but is it possible to combine those two channels in parallel to use the amp as a monoamp?
why would it not work?
Whats the point of doing this on a 50x4 watt 4 channel amp, to get a whole 150 watts rms?
All your doing is trying to figure out a way to fry your amp. Why not just go buy your self a cheap class D amp?
Quote:
first of all, youd need a multimeter and a test tone to get the exact same output voltage, secondly, youd probably want to bypass the onboard crossovers. also, lets say each separate amp was 4 ohm stable, your new bridged amp would only be 8 ohm stable
you couldn't run a left and right channel to the amp, that's for sure. but if you split one side (red or white) enough times, i'm sure it would work. i don't get the b.s. thing because you would have to have the gains matched exactly. and for most 4 channel amps under $400 8 ohm stability would exist.
to the post starter, the only way using that amp on a sub makes sense is if you bridge the channels and use it to power each voice coil independantly, on a DVC 4 ohm sub. otherwise don't bother
anyways..right now it'll prolly be bridged for 100watt rms X2...
i'll just lug a scope out and make sure both channels are in phase and have the same amplitudes going into my DVC sub..
btw...reason i asked if the bridge channel can be hooked in parallel is because my sub was 2 ohm X 2 DVC...2ohm to a bridged channel will not work.....
anyways..i've recently just traded that sub for a 4 ohmx2 DVC...problem solved..haha
