Mobile Audio Competitors Organization
Mobile Audio Competitors Organization
Mobile Audio Competitors Organization
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Mobile Audio Competitors Organization

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Joint Finals a success. USACI numbers down due to very remote (from USACI) location but better than expected. Results posted on web site.
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» STETSOM 7KD
sundown 4500 rating Icon_minitimeWed Sep 23, 2020 7:37 pm by big bass joel

» any blown stetsom 7kd or 2k6d amps for sale
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» We need the forums back
sundown 4500 rating Icon_minitimeMon Jul 29, 2019 2:41 pm by svillarrial

» THIS OLD FORUM IS ALIVE!!!! 6/14/17
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» It's back up !
sundown 4500 rating Icon_minitimeThu Jun 16, 2016 7:03 pm by chrisfish

» 2 Atomic apocalypse 12s D4
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» well hello
sundown 4500 rating Icon_minitimeSat Sep 26, 2015 5:46 am by TAMU

» WELLLWELLL
sundown 4500 rating Icon_minitimeTue Jul 14, 2015 4:24 pm by Nice

» SLAMBOREE AUG 1 & 2
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Top posters
sanman
sundown 4500 rating Vote_lcapsundown 4500 rating Voting_barsundown 4500 rating Vote_rcap 
The_Rowlands
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chrisfish
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Stingraysevenout
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scionsoloxb
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TECH114
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Alan
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supadave
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Moparbass28
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Navi
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 sundown 4500 rating

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+7
Skip01
outsideshot23
johnperdeye
supadave
chrisfish
XFL-Leader
stevew007
11 posters
AuthorMessage
stevew007
Basic Contributor
Basic Contributor



Number of posts : 407
Age : 46
Location : west sac
Registration date : 2007-06-22

sundown 4500 rating Empty
PostSubject: sundown 4500 rating   sundown 4500 rating Icon_minitimeTue May 17, 2011 9:41 am

can i run 2 of these in 601-1800 ???


Rated power output
----RMS power, 2 ohm linkable/dual mono
9000W x 1CH
----RMS power, 1 ohm mono
4500W x 1CH
----RMS power, 2 ohm mono 2000W x 1CH
----RMS power, 4 ohm mono
900W x 1CH
Signal to Noise Ratio >90dB
Low pass frequency crossover 35Hz~300Hz
Subsonic filter 10Hz~50Hz
Bass boost @ 45Hz 0~9dB
Phase shift control 0~180 degree
Frequency response 10Hz~250Hz (+/- 1dB)
T.H.D @ 4 ohm <0.1%
Efficiency @ 4 ohm 86%
Fuse rating 500A (external type fuse)
Input Sensitivity 200mV to 6V (+/- 5%)
Dimensions 12.2"(W) x 2.68"(H) x 25.59"(L)
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XFL-Leader
Basic Contributor
Basic Contributor
XFL-Leader


Number of posts : 320
Age : 55
Location : Knoxville, TN Home of the Volunteers
Registration date : 2007-06-30

sundown 4500 rating Empty
PostSubject: Re: sundown 4500 rating   sundown 4500 rating Icon_minitimeTue May 17, 2011 10:18 am

Nope. The 4500@1 ohm rating is bigger than the 900@4.
4500@1 =
2250@2 =
1125@4.

1125 watts is the Usaci 4ohm rating.
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chrisfish
I own this joint!
I own this joint!
chrisfish


Number of posts : 6521
Age : 54
Location : Silt Colorado
Registration date : 2009-05-16

sundown 4500 rating Empty
PostSubject: Re: sundown 4500 rating   sundown 4500 rating Icon_minitimeTue May 17, 2011 10:40 am

This was talked about every year ..
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stevew007
Basic Contributor
Basic Contributor



Number of posts : 407
Age : 46
Location : west sac
Registration date : 2007-06-22

sundown 4500 rating Empty
PostSubject: Re: sundown 4500 rating   sundown 4500 rating Icon_minitimeTue May 17, 2011 10:42 am

chrisfish wrote:
This was talked about every year ..

ok dont yell! JK

thanx
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supadave
Thats a Lot of Posts!
Thats a Lot of Posts!
supadave


Number of posts : 3745
Age : 42
Location : tupelo mississippi
Registration date : 2008-02-28

sundown 4500 rating Empty
PostSubject: Re: sundown 4500 rating   sundown 4500 rating Icon_minitimeTue May 17, 2011 1:22 pm

Usaci rated this amp at 1124. The sundown spec says it does 900 @ 4 ohm which this amp would be perfect for that class
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johnperdeye
Advanced Contributor
Advanced Contributor



Number of posts : 1406
Age : 46
Location : jackson, mississippi
Registration date : 2007-06-25

sundown 4500 rating Empty
PostSubject: Re: sundown 4500 rating   sundown 4500 rating Icon_minitimeTue May 17, 2011 6:04 pm

If manufacture rates it at 900@4 ohm then thats what's used unless protested and rerated.
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outsideshot23
Above Average Contributor
Above Average Contributor



Number of posts : 638
Age : 37
Location : OK
Registration date : 2009-09-13

sundown 4500 rating Empty
PostSubject: Re: sundown 4500 rating   sundown 4500 rating Icon_minitimeTue May 17, 2011 6:18 pm

the 4 ohm or divide the 1 ohm down and use the larger.. in this case like stated about 4500@1=2250@2=1125@4= Too big
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Skip01
Advanced Contributor
Advanced Contributor
Skip01


Number of posts : 2099
Location : Marrero, LA
Registration date : 2007-07-02

sundown 4500 rating Empty
PostSubject: Re: sundown 4500 rating   sundown 4500 rating Icon_minitimeTue May 17, 2011 6:37 pm

Such a weird rule....some amps pass, some amps dont
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supadave
Thats a Lot of Posts!
Thats a Lot of Posts!
supadave


Number of posts : 3745
Age : 42
Location : tupelo mississippi
Registration date : 2008-02-28

sundown 4500 rating Empty
PostSubject: Re: sundown 4500 rating   sundown 4500 rating Icon_minitimeTue May 17, 2011 6:49 pm

i think this amp should be tested, no one s hould fork up the money for it, its something that this orgnization should do for us COMPETITORS
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daddy_j
Above Average Contributor
Above Average Contributor



Number of posts : 797
Location : san antonio
Registration date : 2008-04-30

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PostSubject: Re: sundown 4500 rating   sundown 4500 rating Icon_minitimeTue May 17, 2011 7:59 pm

good luck with that
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Alan
Thats a Lot of Posts!
Thats a Lot of Posts!
Alan


Number of posts : 3897
Age : 44
Location : Watson Louisiana
Registration date : 2008-02-05

sundown 4500 rating Empty
PostSubject: Re: sundown 4500 rating   sundown 4500 rating Icon_minitimeTue May 17, 2011 10:43 pm

Skip the thing is. Some pass some don't is cause the ones actually tested pass. If the amp was tested there's probly a good chance 900 would work. But it could say 4500 at 1ohm. Because in usaci eyes its literaly impossible for an amp to make 900w at 4 and 4500. At 1. That would mean it more than doubls its power when impedence is halfed each time. And most amps wont do that. But the % rule and distortion tested help alot of amps have a low 4 ohm rating.
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Alan
Thats a Lot of Posts!
Thats a Lot of Posts!
Alan


Number of posts : 3897
Age : 44
Location : Watson Louisiana
Registration date : 2008-02-05

sundown 4500 rating Empty
PostSubject: Re: sundown 4500 rating   sundown 4500 rating Icon_minitimeTue May 17, 2011 10:47 pm

I said at the member meeting about 35-40 years ago when Ralph introduced us to CEA rated amps.. that ALL amps that wanted to run a power class need be CEA rated or else run unlimited .. but no one cared. Cause usaci competitors favor these amps built around our rules for whatever reason.. I don't think forcing a cea rating is any more of a big deal than the time invested by a manufacture to having these usaci special amps done...
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mbrooky
Novice Contributor
Novice Contributor
mbrooky


Number of posts : 81
Age : 43
Location : Bossier City, Louisiana
Registration date : 2010-04-26

sundown 4500 rating Empty
PostSubject: Re: sundown 4500 rating   sundown 4500 rating Icon_minitimeWed May 18, 2011 12:08 am

Alan wrote:
Skip the thing is. Some pass some don't is cause the ones actually tested pass. If the amp was tested there's probly a good chance 900 would work. But it could say 4500 at 1ohm. Because in usaci eyes its literaly impossible for an amp to make 900w at 4 and 4500. At 1. That would mean it more than doubls its power when impedence is halfed each time. And most amps wont do that. But the % rule and distortion tested help alot of amps have a low 4 ohm rating.


what about the cactus pf600?? it's been tested to do well over 600 but yet it's still good for 0-600....?? scratch
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daddy_j
Above Average Contributor
Above Average Contributor



Number of posts : 797
Location : san antonio
Registration date : 2008-04-30

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PostSubject: Re: sundown 4500 rating   sundown 4500 rating Icon_minitimeWed May 18, 2011 12:22 am

mbrooky wrote:
Alan wrote:
Skip the thing is. Some pass some don't is cause the ones actually tested pass. If the amp was tested there's probly a good chance 900 would work. But it could say 4500 at 1ohm. Because in usaci eyes its literaly impossible for an amp to make 900w at 4 and 4500. At 1. That would mean it more than doubls its power when impedence is halfed each time. And most amps wont do that. But the % rule and distortion tested help alot of amps have a low 4 ohm rating.


what about the cactus pf600?? it's been tested to do well over 600 but yet it's still good for 0-600....?? scratch

check your stats...... it was tested and was under the required amount of watts. Pay for the 4500 to get tested and if it falls under the required amount of watts, then you can use it.
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mrbashful210
Above Average Contributor
Above Average Contributor
mrbashful210


Number of posts : 606
Age : 41
Location : SA TOWN
Registration date : 2010-04-26

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PostSubject: Re: sundown 4500 rating   sundown 4500 rating Icon_minitimeWed May 18, 2011 12:33 am

maybe sundown should send some of there amps in to get tested.. im pretty sure competitors would run them more then what they do now.. i wouldnt mind running 2 4500s in 601-1800..
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