| Author |
Thread: Electrically what do i need for my memphis 4kw? |
    
Silver Member Username: Ridinspinnas
Windsor,
Ontario
Canada
Post Number: 224
Registered: May-06
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| Posted on Wednesday, May 28, 2008 - 11:20 am: |
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I just ordered my memphis 4kw, and its mots likely goinbg in a 88 astro van for now, i have 30+ feet of kicker 1/0 gauge wire, will that be good enough? what size alt should i get? how many battery's let me know thanks |
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Diamond Member Username: Bestmankind
Post Number: 20947
Registered: Oct-05
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| Posted on Wednesday, May 28, 2008 - 11:30 am: |
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do you have a ho alt or stock? |
Gold Member Username: Loc_out
SOCAL
2 RE 15 XXX
Post Number: 2128
Registered: Feb-05
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| Posted on Wednesday, May 28, 2008 - 11:41 am: |
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My friend had two of those amps in his accord. He had a 260 H.O alt and two batt on the back.
I would start with a H.O Alt. |
Diamond Member Username: Bestmankind
Post Number: 20948
Registered: Oct-05
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| Posted on Wednesday, May 28, 2008 - 12:00 pm: |
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"My friend had two of those amps in his accord. He had a 260 H.O alt and two batt on the back.
I would start with a H.O Alt."
and even with that he still managed to blow one amp. |
Gold Member Username: Dakangofkrunk16
Boca Raton,
Florida
Post Number: 1655
Registered: May-07
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| Posted on Wednesday, May 28, 2008 - 12:04 pm: |
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250 H/O Alt and two HC2000
Maybe Replace front one with HC1400
It always good to be safe also BIG 3 Might need more ) awg wire for the Big 3 |
Gold Member Username: Dakangofkrunk16
Boca Raton,
Florida
Post Number: 1656
Registered: May-07
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| Posted on Wednesday, May 28, 2008 - 12:04 pm: |
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you could prolly get away wit a 200 alt tho |
Silver Member Username: Ridinspinnas
Windsor,
Ontario
Canada
Post Number: 225
Registered: May-06
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| Posted on Wednesday, May 28, 2008 - 12:30 pm: |
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what about size and amount of runs of wire i already have kicker 1/0 gauge is that good enough |
Diamond Member Username: Bestmankind
Post Number: 20949
Registered: Oct-05
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| Posted on Wednesday, May 28, 2008 - 12:37 pm: |
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that amp is a current hog. i'd do 2 runs for positive and 2 runs for negative. |
Gold Member Username: Loc_out
SOCAL
2 RE 15 XXX
Post Number: 2130
Registered: Feb-05
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| Posted on Wednesday, May 28, 2008 - 12:58 pm: |
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Yeah my fiend had the big 3 and still blew that amp. He is not rookie. Two runs sounds about right. |
Gold Member Username: Denali_on_22s
I get Bucks like Milwa...
Post Number: 5949
Registered: Feb-06
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| Posted on Wednesday, May 28, 2008 - 01:17 pm: |
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dru you realize you have to do the big three with an HO alt right? |
Gold Member Username: Th3pwn3r
I compensate...
Post Number: 8093
Registered: Jul-06
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| Posted on Wednesday, May 28, 2008 - 02:14 pm: |
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"you could prolly get away wit a 200 alt tho"
You're an idiot if you think you can run at Memphis 4KW with a 1ohm load off of a 200amp alternator to it's full potential. You have no idea what you're talking about and you have no experience with that amplifier. It's extremely inefficient compared to a lot of other mono D class amplifiers I've used or seen. It's efficiency is so bad I'd steer clear of them unless I was running a 16 volt setup. |
Gold Member Username: Th3pwn3r
I compensate...
Post Number: 8094
Registered: Jul-06
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| Posted on Wednesday, May 28, 2008 - 02:15 pm: |
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Chris, I may have a 300 amp alternator with bracket that you'll be needing. It's from Iraggi and I'm not going to be using and UNLESS Iraggi honors the plan he made or deal it will be useless. In case you're wondering I paid for the lifetime warranty/first car swap out plan. |
Gold Member Username: Th3pwn3r
I compensate...
Post Number: 8095
Registered: Jul-06
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| Posted on Wednesday, May 28, 2008 - 02:16 pm: |
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Oh and the alt I'm speaking of was being run in an Astro van so... |
Silver Member Username: Ridinspinnas
Windsor,
Ontario
Canada
Post Number: 226
Registered: May-06
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| Posted on Wednesday, May 28, 2008 - 06:26 pm: |
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ok dude so can u get a new one or is it already new? |
Gold Member Username: Th3pwn3r
I compensate...
Post Number: 8110
Registered: Jul-06
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| Posted on Wednesday, May 28, 2008 - 07:55 pm: |
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Well considering that I ran it in my vehicle lol...I'm going to say it's not new. A new 300 amp alt in that case will cost you around $500 bucks. I was going to see if Iraggi would swap it out like he said in the deal we made but getting a hold of that guy is like winning the lottery or being struck by lightning but not as easy. |
Silver Member Username: Bonhamd
TC,
MI
USA
Post Number: 678
Registered: Nov-07
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| Posted on Wednesday, May 28, 2008 - 07:59 pm: |
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^haha - i have not bought a HO alt as of yet but I have tried contacting Iraggi and it is pretty tough. It took 3 emails to get a response. |
Gold Member Username: Th3pwn3r
I compensate...
Post Number: 8112
Registered: Jul-06
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| Posted on Wednesday, May 28, 2008 - 08:12 pm: |
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Daniel, that's not even the main problem. His customer service is complete sh1t. He sent me an alternator that never fit, I was told it was a direct bolt on but he was full of sh1t so I had to make it work. That's why I dislike the guy, you pay him for a certain product and he never honors his word. |
Gold Member Username: Dakangofkrunk16
Boca Raton,
Florida
Post Number: 1657
Registered: May-07
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| Posted on Wednesday, May 28, 2008 - 09:24 pm: |
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oh geez here we go again wit this sht...
HE could get away wit a 200 alt but he would need more batts so shut it.. it isnt entirely false thanks bye |
Gold Member Username: Th3pwn3r
I compensate...
Post Number: 8120
Registered: Jul-06
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| Posted on Wednesday, May 28, 2008 - 09:29 pm: |
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"HE could get away wit a 200 alt but he would need more batts so shut it.. it isnt entirely false thanks bye"
Dru, when did you own one of these amplifiers? Never? Oh that's right. I owned one and ran it off of a 300amp alternator with my engine's idle being raised and still had drop, that's how current hungry they are. I've actually spoken with the guy who designed the 4kw and he told me that you need 400amps to see full potential out of those amplifiers NOT 200. So you shut it dumb as$ because you have no clue what you're talking about. You saying he could get away with a 200 amp alt is true if you only use half of the amp's power but that'd be just plain retarded and dumb or something you would do. |
Gold Member Username: Dakangofkrunk16
Boca Raton,
Florida
Post Number: 1658
Registered: May-07
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| Posted on Wednesday, May 28, 2008 - 09:32 pm: |
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yea im not reading all that... See u can correct me but dont have to be such a Dick about it you know |
Gold Member Username: Th3pwn3r
I compensate...
Post Number: 8123
Registered: Jul-06
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| Posted on Wednesday, May 28, 2008 - 09:40 pm: |
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To anyone who has read Dru's nonsense about a 200 amp alt being sufficient for a Memphis 4kw please disregard the neanderthal's statement. |
Gold Member Username: Safe_cracker
Chicago,
IL
US
Post Number: 4562
Registered: Jan-06
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| Posted on Wednesday, May 28, 2008 - 10:52 pm: |
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Most of the problems stent down from not enough battery power. High output alt won't do nothing if you don't have a place to store it. A single Alt will never produce enough power for a big amp actually not even a multiple alt setup will either. Reason being is that there is a lag between the alt and regulator, a small latency problem to draw of the amplifier. This is mostly seen while street beating, the tell tale disco ball effect. You need a lot of battery to be safe and a good HO alt to keep them charged. Do not rely on alt alone, it won't work and BTW the M 4ks don't like low voltage spikes. Also you do know there are stronger amps in smaller packages lOl those things are like surfboards hahahha... Polo.. |
Gold Member Username: Nd4spd18
Northwest PA
Post Number: 7573
Registered: Jul-06
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| Posted on Friday, May 30, 2008 - 03:21 pm: |
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Bad choice of amp, those things have such terrible efficiency that you spend more on the charging system they need (and probably still have it not be enough) than you would have on a better amplifier. |
Gold Member Username: Safe_cracker
Chicago,
IL
US
Post Number: 4575
Registered: Jan-06
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| Posted on Friday, May 30, 2008 - 07:54 pm: |
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Word ^^^^^ |
Gold Member Username: Insearchofbass
Post Number: 9325
Registered: Jun-04
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| Posted on Friday, May 30, 2008 - 08:58 pm: |
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yeah hes looking at about 400 amps of potential draw right....let alone the cars basic electrical needs and another amplifier to keep the highs up with the bass |
Silver Member Username: Drant19
DUB-C,
TX
Post Number: 996
Registered: Aug-07
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| Posted on Friday, May 30, 2008 - 09:05 pm: |
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all i have to say is...good luck!
oh and maybe you can return the amp? and try to get something not so inefficient? |
Gold Member Username: Safe_cracker
Chicago,
IL
US
Post Number: 4576
Registered: Jan-06
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| Posted on Friday, May 30, 2008 - 10:17 pm: |
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DD Z1a with a BatCap 8400 (16V) underneith, also backed by two 2200 dual voltage batteries (12/16V) so to give you an idea and this is a daily...  Polo.. |
Silver Member Username: Drant19
DUB-C,
TX
Post Number: 1000
Registered: Aug-07
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| Posted on Friday, May 30, 2008 - 10:20 pm: |
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clean that sh!t up polo...looks like my toilet after hotwings. haha
jk |
Silver Member Username: Kingandsons07
Lincoln,
NE TEAM RD
U.S.A
Post Number: 974
Registered: Feb-07
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| Posted on Friday, May 30, 2008 - 11:16 pm: |
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sexy amp =] |
Platinum Member Username: Rovin
1 15 = 149.1DBs
Trinidad & T...
Post Number: 13833
Registered: Jul-05
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| Posted on Saturday, May 31, 2008 - 12:30 pm: |
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''''''''oh and maybe you can return the amp? and try to get something not so inefficient?''''''
most helpful idea on this thread thus far
since everybody is saying the same thing get a different better amp... |
Platinum Member Username: James1115
Use a simple...
Post Number: 10578
Registered: Dec-04
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| Posted on Saturday, May 31, 2008 - 12:48 pm: |
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Hey Chris read Rob,Polo, and Seans post thoroughly they all know what they are talking about from true life expierience not just he said she said bull SH!T. Disreguard Kangology 101 what he said will only end up putting a HUGE strain on your vehicle's elec system not allowing your stock components to run properly and or cause stalling or cpu failure or even worse fires! If you want a good estimate of alt power you will need you take the amount of watts divide it by 10 and there you go. Its not exacxt becase efficiency is different between classes of amps but it will give you a close estimate. I would run twin 250 amp alts on that amp but hey thats just me, I preffer to do things propperly not half assed! There are a select few on here that know what they are talking about, there used to be a lot more but a few are still around and you guys know who you are so i am not going to start naming names but listen to them not some guy who just posts a lot to get his post count up to make people think he knows his stuff based on his post count. Its unfortunate that post count is pretty much like a credit rating around here it should not be. Go by knowledge and understanding not post count!!!!! end of rant!! |
Gold Member Username: Tatonka
-[Team Audib...
Post Number: 1748
Registered: Mar-07
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| Posted on Saturday, May 31, 2008 - 01:16 pm: |
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Here's what I think heh:
Get the biggest HO alt and a few batts. After that, upgrade your wiring. Try this charging system with that amp and see how your voltage is. If it still does not keep up, and you do not want to spend any more money on charging, just sell the amp and get you something more efficient.
+1
post count  |
Gold Member Username: Insearchofbass
Post Number: 9335
Registered: Jun-04
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| Posted on Saturday, May 31, 2008 - 01:38 pm: |
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the only bad thing with the largest iraggi 300 amp alt is it will only put out about 110 amps at idle if im remembering correctly....but thats the compromise you make with the large high output alternators....there was one company that made a 300 amp alt that put out 160 amps at idle that berny found but im not sure if they make one for your vehicle....ask him if your intrested (good luck with what you decide to do because one alt wouldnt cut it for me either with your setup) |
Platinum Member Username: James1115
Use a simple...
Post Number: 10605
Registered: Dec-04
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| Posted on Saturday, May 31, 2008 - 07:08 pm: |
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that was the one point I wanted to make and left out Sean lol way to pick me up |
Gold Member Username: Loc_out
SOCAL
2 RE 15 XXX
Post Number: 2163
Registered: Feb-05
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| Posted on Saturday, May 31, 2008 - 07:19 pm: |
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I will post the link in a lil bit. I am going to order my alt on friday from them.. |
Gold Member Username: Loc_out
SOCAL
2 RE 15 XXX
Post Number: 2164
Registered: Feb-05
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| Posted on Saturday, May 31, 2008 - 07:52 pm: |
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here you go
http://www.qualitypowerauto.com/catalog.php?item=9&catid=41&ret=catalog.php%3Fca %20tegory%3D41 |
Gold Member Username: Drant19
DUB-C,
TX
Post Number: 1010
Registered: Aug-07
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| Posted on Saturday, May 31, 2008 - 07:53 pm: |
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thats a good price on a 300amp alt. |
Gold Member Username: Safe_cracker
Chicago,
IL
US
Post Number: 4577
Registered: Jan-06
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| Posted on Saturday, May 31, 2008 - 09:39 pm: |
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That is why I had my Alt ordered from Bosch by Dom lOl, does over 225A at idle, overdriven of course  |
Silver Member Username: Ridinspinnas
Windsor,
Ontario
Canada
Post Number: 229
Registered: May-06
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| Posted on Sunday, June 01, 2008 - 11:49 am: |
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Ok guys well find me another f***in powerful amp under 1000 bucks delieverd, thanks ecoustics bros |
Gold Member Username: Nyyfan13
15 Mag
USA
Post Number: 9765
Registered: Jul-06
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| Posted on Sunday, June 01, 2008 - 11:57 am: |
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How powerful is "f***in powerful"?
Guessing another 4k? |
Silver Member Username: Ridinspinnas
Windsor,
Ontario
Canada
Post Number: 231
Registered: May-06
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| Posted on Sunday, June 01, 2008 - 12:04 pm: |
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yeah thatll be good or around there,3500-5000 |
Platinum Member Username: James1115
Use a simple...
Post Number: 10637
Registered: Dec-04
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| Posted on Sunday, June 01, 2008 - 12:08 pm: |
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your going to run into the same problems no matter what amp you run once you get upwards of 4K watts. |
Silver Member Username: Ridinspinnas
Windsor,
Ontario
Canada
Post Number: 232
Registered: May-06
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| Posted on Sunday, June 01, 2008 - 12:24 pm: |
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i know but i lost the bid on my memphis |
Silver Member Username: Killswitchjd
Post Number: 758
Registered: Apr-06
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| Posted on Sunday, June 01, 2008 - 12:43 pm: |
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hey polo how the 8's handling that? |
Gold Member Username: Insearchofbass
Post Number: 9346
Registered: Jun-04
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| Posted on Sunday, June 01, 2008 - 01:01 pm: |
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"that was the one point I wanted to make and left out Sean lol way to pick me up :-)"
no problem man we all forget stuff once in a while....thats whats great about a board like ecoustics we can help each other out with input that someone by them selves might not think about or forget to add
Chris Maskell....that listing lowlife gave is the one I was talking about with the highest idle amp for a 300 amp ho alt
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Gold Member Username: Safe_cracker
Chicago,
IL
US
Post Number: 4578
Registered: Jan-06
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| Posted on Sunday, June 01, 2008 - 03:46 pm: |
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"hey polo how the 8's handling that?"
?
Polo |
Gold Member Username: Nd4spd18
Northwest PA
Post Number: 7593
Registered: Jul-06
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| Posted on Monday, June 02, 2008 - 02:22 pm: |
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AQ 3500d or RD 5750.1 would be my suggestions depending on just how much power you need. |
Gold Member Username: Tejcurrent
Post Number: 1382
Registered: Apr-07
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| Posted on Monday, June 02, 2008 - 10:49 pm: |
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Why not get a dual alt bracket for the astro off ebay, and a 2nd alt from autozone? You could probably Ask the guys at MLA (missinglinkaudio.com) about how well that works with a few extra batteries. You'll be sure to get the same power as a h/o alt, especially more at idle. Plus with a higher voltage it's win win imo. I'd give it 2 runs of 1/0 minimum and 3+ batteries. Good luck.
BTW- I currenty have 4 of them, so I know what they're like- powerhungry, but great power vs. price. |
Gold Member Username: Th3pwn3r
I compensate...
Post Number: 8181
Registered: Jul-06
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| Posted on Tuesday, June 03, 2008 - 09:00 am: |
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Great power Vs price in comparison to what? |
Silver Member Username: Snowball123
West Allis,
WI
United States
Post Number: 786
Registered: Oct-07
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| Posted on Tuesday, June 03, 2008 - 09:08 am: |
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i think he's saying he gets a lot of power for not that much money. |
Gold Member Username: Safe_cracker
Chicago,
IL
US
Post Number: 4585
Registered: Jan-06
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| Posted on Tuesday, June 03, 2008 - 10:45 am: |
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You get ok power for a lot of money actually lol. IMO they are oversized and overpriced, but that is just me. IA 40.1s FTW..  Polo. |
Gold Member Username: Insearchofbass
Post Number: 9381
Registered: Jun-04
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| Posted on Tuesday, June 03, 2008 - 11:03 am: |
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he can run the dual alt setup with the 160 amp at idle suggested above and the stock alt temporarily its supposed to be 100 amps max....that would give him about 210 amps at idle and 400 amps max and then upgrade the stock alt to a 200 amp alt that would give him 100 amps more at idle which would give him 260 amps at idle and 500 amps max and then run some batteries....he could even step up to a 220 amp alt if the idle amperage went up enough to warrant the cost increase |
Gold Member Username: Tejcurrent
Post Number: 1386
Registered: Apr-07
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| Posted on Tuesday, June 03, 2008 - 01:12 pm: |
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^yep.
The 4kws are long and thin, which to me work better than tons of other amps that would put out similar power:
RF 4000 off ebay is around 1100
Sundown 3000 8-900
And many many other amps. You can buy them from a dealer with warranty for 1000-1300 no problem, used for around 600.
There aren't many amps that will put out that much power for $600. = Good power vs Price. |
Gold Member Username: Nd4spd18
Northwest PA
Post Number: 7597
Registered: Jul-06
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| Posted on Tuesday, June 03, 2008 - 01:13 pm: |
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" You get ok power for a lot of money actually lol. IMO they are oversized and overpriced "
X2
They're cheap for a 4kw amp but thats b/c their efficiency is so terrible you will never get that power. |
Gold Member Username: Tejcurrent
Post Number: 1387
Registered: Apr-07
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| Posted on Tuesday, June 03, 2008 - 01:19 pm: |
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^ I disagree. With a very stout charging system there's no reason you wont get that power. I had 1 memphis 4ks hooked up and it had no issues putting out a rock solid 4000w. |
Gold Member Username: Nd4spd18
Northwest PA
Post Number: 7599
Registered: Jul-06
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| Posted on Tuesday, June 03, 2008 - 01:24 pm: |
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Oh yes there is...... with music you're using 1/4 of the amps total power on average. Even your electrical system as impressive as it is will not hold 14v for more than a few seconds of playing a test tone / bass track at full volume, with 4 of those amps. |
Gold Member Username: Tejcurrent
Post Number: 1388
Registered: Apr-07
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| Posted on Tuesday, June 03, 2008 - 01:49 pm: |
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I wont argue that until I actually do it. I'd be willing to bet even at full tilt I'll be keeping things above 13.5 on music. I'm not talking about 4, I'm talking about his 1. There's a big difference in 4000 and 16,000. |
Gold Member Username: Safe_cracker
Chicago,
IL
US
Post Number: 4588
Registered: Jan-06
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| Posted on Tuesday, June 03, 2008 - 08:56 pm: |
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2 DD Z2s would have been a better choice, taking up less space... Polo. |
