Another car audio parallel wiring question.

[Pastore]

I have a Kicker IX404 that I am going to be running to an Alpine 10" TypeR 4 ohm dual voice coil. The amp is a 4 channel, but is bridged into 120W x 2 channels @ 4 ohms. If I wired this in parallel, and it was running at 2 ohms, would I effectively be pushing 240W per channel? If this is correct, would this seriously damage the amplifier?

 

[Deeko]

If the amp is stable in 1 ohm, its not a problem. As to the exact wattage, while generally when you halve the impedence you double the wattage, its not always exact, each amp will give you its own specs.

 

[Pastore]

I have no idea if the amp is stable at 1 or 2 ohms, thats why I am asking if it would damage it.

 

[Deeko]

It varies from amp to amp. Pretty much everything is stable in 2, decent amps are stable at 1. I don't know anything about that particular amp, so I couldn't tell you. It would be 1 ohm though, because bridging it puts it in 2, then running in parallel halves it again. If the amp is NOT stable at 1 ohm, then yes, you can damage it. Sorry I don't have the specifics.

 

[Pastore]

the bridging isnt 2 ohms, its 4... it says that right in the manual...

120W x2 Bridged at 4 Ohms

 

[Deeko]

oh nm, I missed that in the first post. Some amps(like mine) are 2 ohms when bridged. nm then, its only 2 ohms, unless the amp is total sh!t, which I don't think it is, shouldn't be a problem.

 

[Pastore]

awesome, thanks

 

[ArmenK]

Originally posted by: Deeko
If the amp is stable in 1 ohm, its not a problem. As to the exact wattage, while generally when you halve the impedence you double the wattage, its not always exact, each amp will give you its own specs.

Actually you NEVER double the wattage when you half the ohms because there are various losses (components are not ideal). If the manufacturer is telling you the the power doubles, they are lying.

 

[scorp00]

Originally posted by: Beast1284
the bridging isnt 2 ohms, its 4... it says that right in the manual...

120W x2 Bridged at 4 Ohms

some amps will do more than they say that they can as long as your in a well ventilated area. I had an mtx amp rated down to 2 ohms, and I ran it at 1 ohm for 3 years with a massive fan blowing on it and it still got too hot touch. It would cutoff from heat if it ran real loud for over 2 hours, but other than that it was stable.

It'd be cheaper to run a mono amp to a sub than 2 channels off of a 4 channel amp.

 

[Deeko]

Originally posted by: ArmenK

Originally posted by: Deeko
If the amp is stable in 1 ohm, its not a problem. As to the exact wattage, while generally when you halve the impedence you double the wattage, its not always exact, each amp will give you its own specs.

Actually you NEVER double the wattage when you half the ohms because there are various losses (components are not ideal). If the manufacturer is telling you the the power doubles, they are lying.

right, its just a general measure...you're not gonna get that amount, but usually(at least from the amps ive seen) if its not advertised, you can assume its a little below.

 

[NutBucket]

If he wires the coils in parallel the amp will see a 2-ohm load. I don't see any problem with that. Any amp should handle 2-ohm w/o complaint.

 

[kherman]

Who makes the amp?

You have DVC speakers. 4 ohms per voice coil. This is a problem. You can run each speaker at 2 or 8 ohns. This into a bridged amp that is rated at 4 ohms in bridged mode won't work correctly.

 

[Doodoo]

Dont run it wired in parallel bridged to ur amp...unless u want it to overheat or blow it.

 

[CurtCold]

Kicker Amps rule. Well at least the 2 IX252's that I have on my 10's have been running cool, and smooth for about year and half now. I really like Kicker products...

 

[ObiDon]

Whaaaa?!?

So you're saying:
Single subwoofer
Dual 4-ohm voicecoils
Voicecoils in parallel = single 2-ohm driver

4-channel amp bridged to 2-channels?

How do you wire one driver to two bridged channels without melting something?

 

[kt]

Originally posted by: ObiDon
Whaaaa?!?

So you're saying:
Single subwoofer
Dual 4-ohm voicecoils
Voicecoils in parallel = single 2-ohm driver

4-channel amp bridged to 2-channels?

How do you wire one driver to two bridged channels without melting something?

I was wondering the same thing.

Only way he can make use of that 2 bridged channels is to have each channel power one voice coil.

 

[Deeko]

That would be true if his amp was 2 ohms bridged, thus running parallel would put it in 1 ohm, which most amps can't do. However, his amp is 4 ohms when bridged.

 

[scorp00]

Originally posted by: ObiDon
Whaaaa?!?

So you're saying:
Single subwoofer
Dual 4-ohm voicecoils
Voicecoils in parallel = single 2-ohm driver

4-channel amp bridged to 2-channels?

How do you wire one driver to two bridged channels without melting something?

I think he want's to run the sub off of 2 channels bridged, and run regular speakers off of the other 2 channels.