two channel amp to run subs
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=115245
Printed Date: April 25, 2024 at 2:44 PM
Topic: two channel amp to run subs
Posted By: harobikes333
Subject: two channel amp to run subs
Date Posted: July 23, 2009 at 12:03 AM
Hifonics ZXi1308
Here are the specs:
* Zeus ZXi Series 2-Channel Class AB Car Amplifier
* RMS Power Rating:
o 4 ohms: 325 watts x 2 chan.
o 2 ohms: 650 watts x 2 chan.
o Bridged, 4 ohms: 1300 watts x 1 chan.
* Pulse width modulated (PWM) MOSFET power supply
* Remote bass level input (remote level control sold separately)
* LED power and protection indicators
* Tuned Bass EQ (0-10 dB bass boost at 45 Hz)
* Bridgeable operation
* Soft turn-on circuitry
* Preamp RCA outputs
* DC, short, thermal, and overload protection circuitry
* Frequency response: 10-30000 Hz
* Dimensions: 17.72"L x 9.45"W x 2.4"H
* 4-gauge power and ground wiring is required for installation. Contact us for information regarding a discount on select amplifier kits when purchased together with this amplifier.
The pictures show two 50 amp fuses. I'm wanting to run two DVC 4ohm subs with it. So each at 2ohms.
Is the amp worth it?
Replies:
Posted By: laynlower
Date Posted: August 01, 2009 at 11:09 AM
good amp i'd run it
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live to scrape
scrape to live
LOWLIFE CUSTOMS
Posted By: harobikes333
Date Posted: October 31, 2009 at 1:22 AM
I'm running it right now. Bumpin pretty good but I'm putting in a new alternator soon.
Posted By: necessaryevil
Date Posted: October 31, 2009 at 3:33 PM
what subs are you planning on using?
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time is not wasted when you are wasted all the time
Posted By: i am an idiot
Date Posted: October 31, 2009 at 5:33 PM
harobikes333 wrote:
Is the amp worth it?
My Crystal Ball is acting up again. We really need a price to be able to answer that question.
Posted By: harobikes333
Date Posted: November 07, 2009 at 12:58 AM
Sorry, the amp was about 300 bucks.
Posted By: haemphyst
Date Posted: November 07, 2009 at 8:27 AM
harobikes333 wrote:
Is the amp worth it?
Enh... HiFonics... Mediocre at best, in my opinion. You could certainly do worse, but for that money, it's a decent choice.
A bit optimistic as far as power ratings...
50 X 2 = 100
100 X 14.4 = 14400
14400 X .5 = 7200
7200 watts is the BEST that amp will ever do continuous, sorry to tell you. ------------- It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."
Posted By: boogeyman
Date Posted: November 07, 2009 at 8:52 AM
I think haemphyst meant 720 watts
Posted By: haemphyst
Date Posted: November 07, 2009 at 1:06 PM
boogeyman wrote:
I think haemphyst meant 720 watts
Yep... I was getting a bit happy with my math this morning (too much coffee, methinks) and was driving my zero key into clipping! LOL ------------- It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."
Posted By: harobikes333
Date Posted: April 17, 2010 at 8:40 PM
haemphyst could you explain what all you math means..?
Posted By: i am an idiot
Date Posted: April 17, 2010 at 9:18 PM
It has been several months since he posted the math. But this is what I am getting from what he posted. 2 X 50 = 100 means the amp has 2 50 amp fuses for a total of 100 amps current capacity. 100 X 14.4 is the ampunt of wattage input to the amp. 1,440 watts input multiplied by the efficiency rating of a class A/B amplifier, which is around 50 percent efficient. 1,440 X (.)5 = 720 14.4 is the charging voltage of your vehicle if we ived in a perfect world.
Posted By: ianarian
Date Posted: April 18, 2010 at 2:15 AM
Ohms law- voltage x amperage = wattage (I x E = P)
That efficiency is a killer! Class D baby! YAAA! 80% club!
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This is what I do for FUN!
Posted By: harobikes333
Date Posted: April 19, 2010 at 11:45 AM
I'm planning an overhaul of the alternator to put out 180 amps so I'd max out this amp.
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