wiring hifonics mono amp

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Copper - Posts: 137

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Joined: September 16, 2004

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Posted: January 22, 2005 at 3:52 AM / IP Logged

I need some help, I just bought the hifonics bx1500d amp, I am wondering how I will wire the amp for a 2 ohm load of 1000 watts rms. Now it has the inputs as......+ + - -......, I will be running one sub wired parallel at 2 ohms. The illustrations it gave only show the configuration for one sub at 1 ohm, and the picture has it hooked up as using the first positve terminal, and the first negative terminal, will I just use the second positve and negative terminals.

If anyone can help me I would appreciate it.

wheelerdr

Copper - Posts: 337

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Posted: January 22, 2005 at 8:00 AM / IP Logged

this is a mono ch amp run it the same way as the 1ohm with the 2 ohms you will get your 1000 watts

stevdart

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Posted: January 22, 2005 at 10:29 AM / IP Logged

To add to what wheelerdr said, the amp is one channel...so that means that the extra terminals are there for convenience in hooking up multiple loads. Those extra terminals are connected (paralleled) on the amp. You can connect your 2 ohm load to one set as your manual illustrates.

wiring hifonics mono amp -- posted image.

Your sub's voice coils are connected in parallel on the sub, but the result would be the same if each coil went to a set of terminals. Parallel wiring either way. You're setup is correct.

It's a good idea sometimes to tag the unused terminals with something like "not used". And a tag on the speaker wiring "2 ohm". If another connection is made to the unused terminals, the new load will be paralleled with your 2 ohm load.

Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.

Copper - Posts: 137

Joined: September 16, 2004

Location: United States

Posted: January 22, 2005 at 12:47 PM / IP Logged

thanks for the great pic and quick repsonse, but steve, your pic shows a 2 ch amp, my mono has the terminals set from right to left like this......positive, positive, negative, negative.... do I still just pick either two positive and negative terminals and hook it up? How does the amp distinguish a 1 ohm load and a 2 ohm load? Sorry for asking a newb question, but I have never had a mono amp, the terminals are just confusing me.

stevdart

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Posted: January 22, 2005 at 12:57 PM / IP Logged

I'll have to fix my pic. The amps are labelled as mono; I just drew the terminals off the top of my head without looking at models. It could be that the standard for dual terminals on a mono amp is what you described and I just didn't know it.

do I still just pick either two positive and negative terminals and hook it up?
Yes, which is why it doesn't matter how the terminals look on a mono amp. Any two of the same polarity are connected in parallel. Mono means ONE channel, so theoritically a manufacturer could put as many terminals on the amp as they wished, but they would all be connected in parallel. Whereas, a two channel amp should be considered TWO mono amps.
Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.

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wiring hifonics mono amp

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