4 channel for 2 subs?

gotgohan

Apprentice Mechanic
I have a 4 channel b2.300.4 Thunderbolt amp atm. It was free, because of my KAC-8152d getting stolen I have to do with this. I didn't wanna hook it up yet, I was just curious as to if it would do okay on 2 12" kickers. That I have no idea the peak on the subs are but they worked good on my KAC-8152d. THe KAC had 300 Peak 4 ohm and 550 2 ohm. This Bolt says 900 Peak with 50x4 for speakers of course I dunno peak. Can I use it or no?
 

TegSox

Super Duper Moderator
You can bridge that amp to 2 channels and use it that way. It'll put out 150x2 RMS at 4ohms when bridged.
 

gotgohan

Apprentice Mechanic
I was looking how to do it but I don't get it. Will it use all the power if I just hook up for example: RR = Right Rear, and RF = Right Front. Will it use all the power? I know how to do it with mono which is what the kenwood was but this thing has4 sets for the speakers so I don't get it =/.
 

TegSox

Super Duper Moderator
To bridge the channels you use the positive of the front/left channel and the negative of the front/right channel, or the reverse, - of the front/left and + of the front/right, same for the rear channels. It'll say which in the owners manual, some amps say how to bridge right on the amp itself.
If you just hook them up like you said, it'll work, but you will only get 50 watts RMS for each sub. Bridging will get you 150 RMS for each sub.
 


gotgohan

Apprentice Mechanic
Well this sucks... the amp doesn't work I think. The green light comes on but I don't get anything out of any of the channels for sound. I try messing with boost and gains. and I heard something come out of subs but it sounded like something else but music =/ I could be wrong, maybe I did it wrong not sure... I know the Head unit is set for sub woofer atm
 

GreenTeggy

My name is Ben
did you set a solid ground? and double check your wires
 


gotgohan

Apprentice Mechanic
Its a very solid ground, I have my battery in my trunk and I have it directly hooked up. I know its on because the green light turns on, and the red turns on when cars off meaning its on standby. How do you know a amp is blown. I really wish I had my KAC 8152 =(
 
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