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cerwin vega amps

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=130416
Printed Date: May 17, 2024 at 9:55 PM


Topic: cerwin vega amps

Posted By: 04nata
Subject: cerwin vega amps
Date Posted: January 28, 2012 at 8:26 PM

I am considering getting a Cerwin Vega SX500.1 as it is stable (at least the specs say that) at 1 ohm.

would this amp compare to a JL Audio JX500.1? this is only stable to 2 ohm

do amps run hotter at 1 ohm than 2? and what will demand less power the JL or the CV?



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2004 Hyundai Sonata
Kenwood KDC-X599 HU
2-Sundown X-18D4
2-SQ Q4500.1
2-SQ Q90.4
1-Massive DBX4
8-Niche 5.25 mids
8-Niche Tweeters
4-Skar 8" mid-bass
OhioGen 220a alt
OhioGen 350a alt
156.0



Replies:

Posted By: tedmond
Date Posted: January 28, 2012 at 9:01 PM
if the impedance is matched perfectly, you should have no issues of overheating. the amp will get warm from use, but not get extremely hot.

when you say power, the correct teminology is "amps" if they are both 500 watts RMS they will draw the same amount of current.

500watts/12v = current in amps.

from my experience, i find the JL amps are often underrated.

-------------
Ted
2nd Year Tier 1 Medical School
Still installing as a hobby...pays for groceries
Compustar Expert




Posted By: 04nata
Date Posted: January 28, 2012 at 9:25 PM

that's my issue, to get the JL Audio JL500.1 to work coreectly with 4-10's, I need to get dual 4ohm VC subs, and JL dont make them (as I want to match my 15's) but if I go with the Cerwin Vega amp then I can get single 4 ohm VC subs (that JL does ,make) but then my amps won't match.

so is it better to get the JL subs and the CV amp or get the JL amp and some Infinity Reference subs?

anybody have some more input or experience please advise !!!!!!!!!!!!!!!!



-------------
2004 Hyundai Sonata
Kenwood KDC-X599 HU
2-Sundown X-18D4
2-SQ Q4500.1
2-SQ Q90.4
1-Massive DBX4
8-Niche 5.25 mids
8-Niche Tweeters
4-Skar 8" mid-bass
OhioGen 220a alt
OhioGen 350a alt
156.0




Posted By: DYohn
Date Posted: January 29, 2012 at 8:12 PM
I would choose a JL amp any day over an amp labeled with Cerwin Vega.  What do you mean when you say "work correctly"?  Of course they will work correctly.  ??

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Posted By: 04nata
Date Posted: January 29, 2012 at 9:16 PM

DYohn] wrote:

would choose a JL amp any day over an amp labeled with Cerwin Vega.  What do you mean when you say "work correctly"?  Of course they will work correctly.  ??

sorry, what I meant is that if I get the JL subs, they are 4ohm SVC, I can't wire them to achieve the best potential from the JL amp since it is only stable to 2ohms, if I get some CV or Infinity subs with 4ohm DVC I can wire 4 of them in a combo of series and parellel to achive the 2ohms that the JL amp will be stable at

on the flip side if I get the CV amp (or some other brand) that is stable at 1ohm, then of course I can wire the 4 subs down to the 1ohm load to get the most out of the amp. But I can't have my cake and eat it too if I go all JL. I am really a fan of Class D amps now from my experience with the JL Audio JX1000.1 that I already have.

so what it the better choice, cjange brands of subs or amp to get what I am looking for (within the same price range?

BTW: I know that Hifonics were good in teh day (80's) but are they still a decent amp? because they have alot of 1ohm stable amps. (at least they are labled that way)



-------------
2004 Hyundai Sonata
Kenwood KDC-X599 HU
2-Sundown X-18D4
2-SQ Q4500.1
2-SQ Q90.4
1-Massive DBX4
8-Niche 5.25 mids
8-Niche Tweeters
4-Skar 8" mid-bass
OhioGen 220a alt
OhioGen 350a alt
156.0




Posted By: KPierson
Date Posted: January 29, 2012 at 10:17 PM
tedmond wrote:

if the impedance is matched perfectly, you should have no issues of overheating. the amp will get warm from use, but not get extremely hot.

when you say power, the correct teminology is "amps" if they are both 500 watts RMS they will draw the same amount of current.

500watts/12v = current in amps.

from my experience, i find the JL amps are often underrated.


This, of course, assumes that both amps have similar efficiencies. If one is a class AB amp and the other is a class D amp the class D amp will draw less current at the same output as it has a higher efficiency.

-------------
Kevin Pierson




Posted By: 04nata
Date Posted: January 30, 2012 at 8:20 PM
so about HiFonics,,,,,

-------------
2004 Hyundai Sonata
Kenwood KDC-X599 HU
2-Sundown X-18D4
2-SQ Q4500.1
2-SQ Q90.4
1-Massive DBX4
8-Niche 5.25 mids
8-Niche Tweeters
4-Skar 8" mid-bass
OhioGen 220a alt
OhioGen 350a alt
156.0




Posted By: DYohn
Date Posted: January 31, 2012 at 1:49 PM
The JL amp is not "only stable at 2-ohms."  No amps work like that.  The lowest load it can handle might be 2-ohms, but you can load it with any impedance you like that is higher.  The listed impedance is the LOWEST it can handle.

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Posted By: 04nata
Date Posted: January 31, 2012 at 2:00 PM

DYohn] wrote:

he JL amp is not "only stable at 2-ohms."  No amps work like that.  The lowest load it can handle might be 2-ohms, but you can load it with any impedance you like that is higher.  The listed impedance is the LOWEST it can handle.

I knew that, so if you know of a way to wire 4 subs that are 4ohm each down to a total of 2ohms, please share :)

the way I figure its either

1ohm- parrallel in pairs then parallel

.5ohm- parallel all the way down the line

3ohm- 3 in series and one in parallel (ouch)

4ohm- series in pairs then to parallel

re: the reason I am after a decent amp stable to 1ohm, which is why I asked about CV or Hifonics.

or else I will just oversize with a JL1000D and run at 4ohm to get 500 watts, but that's more money !



-------------
2004 Hyundai Sonata
Kenwood KDC-X599 HU
2-Sundown X-18D4
2-SQ Q4500.1
2-SQ Q90.4
1-Massive DBX4
8-Niche 5.25 mids
8-Niche Tweeters
4-Skar 8" mid-bass
OhioGen 220a alt
OhioGen 350a alt
156.0




Posted By: DYohn
Date Posted: January 31, 2012 at 4:29 PM

Why do you need it to be 2-ohms?  If you already have the 4 woofers and don't want to change them, wire them for 4-ohms and get an amp that puts out the power you want into 4-ohms.  It's not difficult.

And by the way your math is incorrect.  4 X 4-ohm SVC woofers all in parallel creates a 1-ohm net.  Not 0.5 ohms.  Your options are 1-ohm, 4-ohms, or 16-ohms.



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Posted By: 04nata
Date Posted: February 01, 2012 at 10:42 AM
DYohn] wrote:

 get an amp that puts out the power you want ,  it's not difficult.


Precisely why I asked about Hi-Fonics and Cerwin Vega, they are comparably priced, and on paper will do what I need.



-------------
2004 Hyundai Sonata
Kenwood KDC-X599 HU
2-Sundown X-18D4
2-SQ Q4500.1
2-SQ Q90.4
1-Massive DBX4
8-Niche 5.25 mids
8-Niche Tweeters
4-Skar 8" mid-bass
OhioGen 220a alt
OhioGen 350a alt
156.0





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