ok if i wire one 4x6 and one 6x9 both 4ohm speakers, into one channel on my 4 channel amp, they will be running parallel and in 2ohms right? so if i hook up both fronts and rears like that to two channels, then bridge the other 2 to run my sub do you think it'll be hard on my amp? and i know i will lose my fading capabilities

my amp is an mtx blue thunder pro

 

All will vary on your amp of course, but I installed my friends system like this, and he's had no problems yet. I've seen it done a lot, w/ min. problems

 

All depends on what your amp is rated to handel for impedance.

My amp is a 4 channel rockford amp, stable @2ohms per channel. (100w RMS@2ohms)

I did just that for about a year or so. My amp was more than happy with the setup.

HOWEVER. If your amp is not rated to have a 2ohm load per channel, then it will be hard on your amp. The amp will have more current going through it and it will heat up more.

With cheaper amps this would eventually blow the amp.

Bottom line, check with the user manual of your amp before doing this.

 

yeap, shes good for a 2 ohm load, but running 2 channels @ 2ohm and the briged 2 into one @ 4ohms wont hurt will it?

 

You should be ok.

Try it but keep the gain on the amp low.

Keep an eye on how warm the amp becomes.

What amp do you have exactly? Model and make.

 

not sure of the exact model #
but its an mtx blue thunder pro, 4X50W @4ohm

 

almost every 4 channel amp is "stable" down to 2 ohms... that means you can run it at:
4 x 2ohms
2 x 4ohms

you just can't ever exceed the wattage rating of the amp... hell you could wire up the amp as 4 x 1ohm... but then you would have to put your gain at 50% or less... I've seen this done a few times, if in a case that your speakers or whatever require you to...

if you were to put your gain at 100% it would be making the amp pump out twice the power it's supposed to, and hopefully if its a good amp, it will simply shut off... but I've never considered buying an amp as small as yours... you are planning on running 2 speakers off of 50 watts? seems like that will only be giving the speakers less than half of what they want... most speakers want anywhere from 50 - 150 RMS watts... maybe you should consider using your deck to power the 4x6's and the front channels on the amps to power your 6x9's... hell most decks can put out 25 watts RMS and thats enough for even my infiniti kappa plates... I couldn't even see 50 watts being enough for 6x9's personally.

hopefully you can make some sense of this

 

actually, i have the 4x6s and 6x9s running in 2ohms, the amp makes 100W in 2ohms, so each speaker gets 50W, and the sub is briged off the back 2 channels, i hooked it all up this morning and it sounds awesome

 

no, he wont be able to make sense of this, because it doesnt make sense.

MOST speakers will be perfectly happy with 40w rms, very few if any decks will produce more than 15-20w rms,

i would LOVE to see you push 150w rms into "most speakers" assuming we are talking mids/highs, i dont care how clean the signal is, if it is music, those speakers arent going to be happy.


adam

 

that's why i put the dash 50 - 150... the crappiest speaker being the 50, and some of the higher end components or 6x9's being 150.... my dual voice coil 6x9's easily take 150 with no problem... crisp and clear... I believe that the kappa perfect components also run around that... hell my kappa plates CAN take 80 watts rms.... but all things considered you definitely don't need to use all the power that speakers are rated for.

hey 1986CamaroSC I'm just curious if you turn the gain all the way up on the front channels that are running the 4x6's and 6x9's at 2 ohms at 100 watts, how long does it go before shutting down? if it doesn't shut down I would appreciate it if you would give me the model # of the amp because it sounds like a great driver for my mids and highs... I've just never considered MTX before.

 

hell most decks can put out 25 watts RMS and thats enough for even my infiniti kappa plates... I couldn't even see 50 watts being enough for 6x9's personally.

you just contradicted yourself, and i HIGHLY doubt your dvc 'by nines can use 150wrms.


adam

 

it doesnt shut off,. its an mtx blue thunder pro, 50 X4, no model # on it

 

The plates require far less power to operate than a pair of 6x9s.. but what I'm trying to say is that the closer you get to your RMS power of your speaker, then the cleaner sound you will get, even if you don't get the sound as loud...

And I'm glad your amp doesn't shut off. It seems to be a decent amp.

The 6x9's I have are 300 watts 'max' but 150 RMS... I have powered them at 150 watts a piece many times... no distortion

hey 1986CamaroSC how much did that amp run you?

 

80US on ebay

 

you have no idea what you are talking about



adam

 

alright man. I do know that you can use a 300 watt amp to pump out 40 watts rms to a speaker and it will sound better than a 100 watt amp thats pumping 40 rms, maybe its simply because the amp is less strained... but I've noticed this on several of my seven different system installs...