Need 2ohm stable dedicated subwoofer amp. - Page 2 - Home Theater Forum and Systems - HomeTheaterShack.com

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post #11 of 22 Old 03-10-13, 11:45 PM
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Re: Need 2ohm stable dedicated subwoofer amp.

GTi's are dual 6 ohm as far as I know.




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post #12 of 22 Old 03-11-13, 09:24 AM Thread Starter
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Re: Need 2ohm stable dedicated subwoofer amp.

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GTi's are dual 6 ohm as far as I know.
You are correct. Sorry for the mistake.
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post #13 of 22 Old 03-11-13, 10:51 AM
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Re: Need 2ohm stable dedicated subwoofer amp.

What size of GTi's do you have and what is the net volume of the cabinet they are in?




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post #14 of 22 Old 03-11-13, 12:27 PM Thread Starter
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Re: Need 2ohm stable dedicated subwoofer amp.

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What size of GTi's do you have and what is the net volume of the cabinet they are in?
2 15"; 4.6 cu ft per enclosure.
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post #15 of 22 Old 03-12-13, 11:42 PM Thread Starter
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Re: Need 2ohm stable dedicated subwoofer amp.

I'm strongly considering going with two Emotiva XPA-1 amps to run the JBLs. I like the idea of a large amp sitting atop each subwoofer cabinet. I just stumbled upon these amps and have not done much research. The only complaints on them seem to be geared toward people who use them in a full range setup. Their business model seems solid. Design in the US, have them build the amps in China, and then cut out the middle man by selling them direct. I'm not concerned about the price being too low when you can sell a 2,400 watt pro amp for $600. Plus, they come with a 5 year warranty. I called their customer service and they said that the amp will run down to 3 ohms but it will run hotter.
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post #16 of 22 Old 03-13-13, 04:04 AM
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Re: Need 2ohm stable dedicated subwoofer amp.

Modeling shows the 15's impedance doesn't drop below 4 ohms until 15 hz. And the impedance will rise as soon as the coil heats up.The Emotiva XPA-1 is awfully pricy for a 500 watt amp.




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post #17 of 22 Old 01-18-17, 12:00 PM
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Re: Need 2ohm stable dedicated subwoofer amp.

I know this is long past the time this message board was opened... but I'm surprised no one suggested hooking the two subs up in a series circuit to add the ohmage together, giving you a 4 ohm circuit to work with as opposed to 2 - 2 ohm circuits. Simply running the positive wire from the amp to the positive of one sub, and the negative from the amp to the negative of the second sub, and a connecting wire between the two subs would have created this so you would have a 4 ohm stable circuit.
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post #18 of 22 Old 01-18-17, 01:55 PM
 
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Re: Need 2ohm stable dedicated subwoofer amp.

Quote:
Hollander79 wrote: View Post
I know this is long past the time this message board was opened... but I'm surprised no one suggested hooking the two subs up in a series circuit to add the ohmage together, giving you a 4 ohm circuit to work with as opposed to 2 - 2 ohm circuits. Simply running the positive wire from the amp to the positive of one sub, and the negative from the amp to the negative of the second sub, and a connecting wire between the two subs would have created this so you would have a 4 ohm stable circuit.
If you do that... Can you EQ them individually still?

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post #19 of 22 Old 01-19-17, 03:10 AM
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Re: Need 2ohm stable dedicated subwoofer amp.

Cant believe no one has said it. But you need and want to go with the cerwin vega CV-5000.
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post #20 of 22 Old 01-19-17, 07:06 AM
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Re: Need 2ohm stable dedicated subwoofer amp.

http://www.speakerpower.net/


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