What does this means in terms of alternator output needed.
I plan on pushing two 12" Brahma's with this amp. Would I also be better of getting a new battery.
Oh yeah the amp is a Audiobahn A2300HCQ
I'm starting to get installing car audio gear a bit. The only part that kind of throws me of still is the whole power issue. What size main fuse would one use with this type of setup etc. I have a lot to learn about electrical issues.
Replies (3)
compvr15s on 04/1/2004 07:49:41
well the way i look at it is, if you have an amp that draws 100 amps of current, you want no more than a 100 amp fuse, id likey go with 85 amp or sumtin relatively close but not exceeding the actually draw of the amps or you will be defeating the purpose, you definitly want a 2 dollar fuse to blow before an expensive amp. your amp has 160 amps draw so id recommend 150 amp, or i think they make devices that hold multiple fuses so you could put four 50 amp fuses inline, but im not 100 percent positive on this, wait for another gold to explain in depth, the fuses are to just protect againts voltage spikes. good luck hopefully i helped in a way, if not alteast i brought the post back to the top of the list/
swez on 04/1/2004 08:17:03
HC amps are great for DB Drag installs. But they pull a large amount of current at full power and considerable current bias under low load conditions as well.
Contact Bahn Tech via e-mail and ask them what max current draw of this amp will be at full power. My guess, they will tell you the draw is well below 160A. (Probably closer to 100-120A.)
tech@audiobahninc.com
The Brahma is 2+2 DVC. You have several ways of wiring them. Full parallel will net 0.5 ohms load. (1/2 ohm) If you wire them Series/Parallel, you get a 2 ohm load. (4//4 = 2 ohms) That's where you want to be if you bridge MONO. (600 RMS x 2) If you run as a 2 channel, this amp will deliver 900 RMS @ 1 ohm/ch.
Also, the Brahma VC's can handle 1600 watts input, but the motor structure can reach max excursion and output SPL well before that, depending on the enclosure used. At 900 RMS, looking at ~1.0 cf sealed. Much larger than that, maximum excursion (X-max) is likely and you can damage the subs. If you elect to go ported, can do so... but it will take even less watts input to reach X-max.
Comments?
Swez
ryan on 04/1/2004 09:26:00
Make sure to contact adire with your box size and what kind of box it will be in so they can tell you how much power it needs. Depending on the closure will depend on how much they can handle thermally. I learned this the hard way. I gave my one 12" brahma a bit over 600w RMS and i toasted the voicecoil. It was in a 2.0cuft ported box. They said to push the brahma to its limits in this box it only needs 400w. So be careful. You wont hear it distort until you blow it, but a way to tell is, after you get it broken in and the glue smell away, if you smell that glue smell again or a different smell turn it down because your pushing ur brahmas to hard.brBut after you get your power issues under control you will be glad you bought this system. Its gonna pound, i cant imagine the feeling of sitting in your car with 2 brahmas.br
I plan on pushing two 12" Brahma's with this amp. Would I also be better of getting a new battery.
Oh yeah the amp is a Audiobahn A2300HCQ
I'm starting to get installing car audio gear a bit. The only part that kind of throws me of still is the whole power issue. What size main fuse would one use with this type of setup etc. I have a lot to learn about electrical issues.
Replies (3)
compvr15s on 04/1/2004 07:49:41
well the way i look at it is, if you have an amp that draws 100 amps of current, you want no more than a 100 amp fuse, id likey go with 85 amp or sumtin relatively close but not exceeding the actually draw of the amps or you will be defeating the purpose, you definitly want a 2 dollar fuse to blow before an expensive amp. your amp has 160 amps draw so id recommend 150 amp, or i think they make devices that hold multiple fuses so you could put four 50 amp fuses inline, but im not 100 percent positive on this, wait for another gold to explain in depth, the fuses are to just protect againts voltage spikes. good luck hopefully i helped in a way, if not alteast i brought the post back to the top of the list/
swez on 04/1/2004 08:17:03
HC amps are great for DB Drag installs. But they pull a large amount of current at full power and considerable current bias under low load conditions as well.
Contact Bahn Tech via e-mail and ask them what max current draw of this amp will be at full power. My guess, they will tell you the draw is well below 160A. (Probably closer to 100-120A.)
tech@audiobahninc.com
The Brahma is 2+2 DVC. You have several ways of wiring them. Full parallel will net 0.5 ohms load. (1/2 ohm) If you wire them Series/Parallel, you get a 2 ohm load. (4//4 = 2 ohms) That's where you want to be if you bridge MONO. (600 RMS x 2) If you run as a 2 channel, this amp will deliver 900 RMS @ 1 ohm/ch.
Also, the Brahma VC's can handle 1600 watts input, but the motor structure can reach max excursion and output SPL well before that, depending on the enclosure used. At 900 RMS, looking at ~1.0 cf sealed. Much larger than that, maximum excursion (X-max) is likely and you can damage the subs. If you elect to go ported, can do so... but it will take even less watts input to reach X-max.
Comments?
Swez
ryan on 04/1/2004 09:26:00
Make sure to contact adire with your box size and what kind of box it will be in so they can tell you how much power it needs. Depending on the closure will depend on how much they can handle thermally. I learned this the hard way. I gave my one 12" brahma a bit over 600w RMS and i toasted the voicecoil. It was in a 2.0cuft ported box. They said to push the brahma to its limits in this box it only needs 400w. So be careful. You wont hear it distort until you blow it, but a way to tell is, after you get it broken in and the glue smell away, if you smell that glue smell again or a different smell turn it down because your pushing ur brahmas to hard.brBut after you get your power issues under control you will be glad you bought this system. Its gonna pound, i cant imagine the feeling of sitting in your car with 2 brahmas.br
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