I got a legacy amp! What should I do???
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New member Username: HebenPost Number: 1 Registered: May-06 | Way back when I knew nothing about car audio products I bought a Legacy Amp "3000 watts" class D mono block just like this one http://www.sjgreatdeals.com/tb-la3070d.html . It says It'll do 800w rms into 2ohms. I dunno whether or not to beleive that or whether or not to keep the amp and get subs for it. Does anyone know exactly how crappy Legacy is? I know they suck but I'd still like to put the amp to use since I'm po and need bass. |
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Gold Member Username: GoatinOhio U.S.A Post Number: 1264 Registered: Jan-06 | I'd hook it up. lol And if you want a cheap (but effective) System I would recomend 2 2ohm 12" CVR's they are 400RMS \/ Wire it like this \/  And enjoy  |
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Silver Member Username: JuliobSanto DomingoDominican Re... Post Number: 654 Registered: Dec-05 | can you bench test it and put the results, legacy is not very reliable, but i guess that one will put like 1000w at 1 ohm. They put 1/3 stated lol! |
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New member Username: HebenPost Number: 2 Registered: May-06 | Awesome! Thanks alot! The setup I had in mind was a pair of 1000w rms 4 ohms per coil dvc 12" subs like these ones http://www.ikesound.com/product-product_id/3216 and I was gonna wire each coil in parallel for a 1ohm load, but is that even possible with a 2 channel amp? And would it be a good idea? |
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New member Username: HebenPost Number: 3 Registered: May-06 | Judging from the size of the amp, I'd say 1000w sounds about right. Usually rms is said to be about 1/2 of peak. So with legacy it's more like 1/3? I don't know how to bench test it myself, but I have a friend who I'm hoping will do that for me, and I'll post the info when I get him to help me. So would the setup I mentioned work? or how else can I get 1ohm for cheap to maximize my watts? |
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Gold Member Username: Dustin3Tigard, Or U.S. Post Number: 1401 Registered: Oct-05 | dont get legacy sub. DO NOT.lol |
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New member Username: HebenPost Number: 4 Registered: May-06 | I know legacy is a very low quality brand, but why not match my low quality amp with equally low quality speakers? I mean, I was gonna get mtx's, but if my amp already sucks then my system is gonna pretty much suck anyways, so why pay twice as much for decent subs? |
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Silver Member Username: James_gTN Post Number: 500 Registered: Jul-05 | All of the sites I checked show that amp listed as 2400w MAX. The LA3090D is listed as 3000w MAX. I would guess around 600w RMS from that LA3070D. What size is the fuse/fuses in the amp, or what size does the manual recommend? |
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Gold Member Username: Dustin3Tigard, Or U.S. Post Number: 1405 Registered: Oct-05 | ben, there are better sub that will get louder for the money for those legacies. for $ 65 plus shipping which is what u would be paying for those legacies, you can get a couple of comp vrs (only a lil more money) or maybe an AA assasin which is ike 75 bucks. A watt is a watt and nothing more and if u can find the real watts that the amp puts out, you can match it with some nice decent subs. |
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Gold Member Username: GoatinOhio U.S.A Post Number: 1265 Registered: Jan-06 | Ben my man, why would you use crappy subs on a not soo good amp? I am shure that amp is at least a little overrated if not a lot. But I personally would rather have a odlschool legacy amp than a new one, or a explod amp. "I mean, I was gonna get mtx's, but if my amp already sucks then my system is gonna pretty much suck" Not true for the most part a amp is a amp some just have better s/n ratios, Lower THD %, more actual RMS, Ect... If you shoud decide to get some really cheap subs plan on keeping them, Or giveing them away because few suckers would buy a used legacy or some obvious El Cheepo. And they will sound really really bad, and when you hear them you might get really really mad.LOL If you want a cheap sub how about a cheep Pioneer,Or Audiobahn. Then when you upgrade, or if you upgrade you can sell them to some poor sucker for at least what you paid for them maybe even a bit more. If you get subs make shure if you want 1 ohm you get 2 4ohm subs or 1 2ohm sub And if you want 2 ohm get 2 2ohm subs or 1 4ohm sub. |
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New member Username: HebenPost Number: 5 Registered: May-06 | Wow, thanks alot for the advice. It's really helpful. Is there a place on the net that tells how to test it for watts? Where is a good place to start looking for these subs? I'm a little confused about what you said about ohms, Rave'n. When you said "if you want 1 ohm you get 2 4ohm subs or 1 2ohm sub" were you talking about parallel wired DVCs? |
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Gold Member Username: Dustin3Tigard, Or U.S. Post Number: 1415 Registered: Oct-05 | hes was just talkin bout the diff wiring possibilities when u have 2 4 ohm subs you present a 1 on the amp and when i have 1 2 ohm sub you present a 1 ohm load. what subs were u talkin about?^^ "Where is a good place to start looking for these subs?" |
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New member Username: HebenPost Number: 6 Registered: May-06 | Really? what wiring configuration do you use to get 1ohm from 2 4ohm subs? I thought that wiring them in parallel would yeild a 2 ohm load and series would give you 8ohms. I thought that's what I was told. also I thought a 2ohm sub would just give you a 2ohm load. This is svc I'm talking about, and I thought the dvc's acted like 2 subs as far as ohms and wiring. Is all that wrong? or were you referring to some other type of wiring? I'm confused. The subs I was thinking of looking for are the ones you suggested, Dustin. I've heard of those subs but I don't remember anything about them. Is ebay a good place to find them? Thanks alot again. |
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Gold Member Username: GoatinOhio U.S.A Post Number: 1267 Registered: Jan-06 | here is a cheap Pioneer. in a ported box they get loud. http://www.onlinecarstereo.com/CarAudio/ProductDetail.aspx?ProductID=14521 This woud make a good SPL sub (Ran in 2ohm) Yes ben I meant DVC I am sorry I did not mention it. |
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Gold Member Username: GoatinOhio U.S.A Post Number: 1268 Registered: Jan-06 | Oops ment to put this after This woud make a good SPL sub (Ran in 2ohm http://www.onlinecarstereo.com/CarAudio/ProductDetail.aspx?ProductID=13520 |
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Gold Member Username: Dustin3Tigard, Or U.S. Post Number: 1417 Registered: Oct-05 | dont rec. audiobahn man. ben use www.the12volt.com and go to woofer wiring on the left and then play around with that, its pretty simple |
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Gold Member Username: GoatinOhio U.S.A Post Number: 1269 Registered: Jan-06 | I was talking for when he upgrades audiobahn and pioneer sell better than an el chepo. |
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New member Username: HebenPost Number: 7 Registered: May-06 | All the kicker comp vr subs I can find are like 400w rms. Will that be enough for my amp? It says it'll do 800w rms into a 2 ohm load, so that would mean 1600w rms into a 1ohm load, right? It says it's 1ohm stable so I'd like to give it 1ohm. Even if it's significantly overrated, it seems to me it could very well blow a 800w rms setup at 1ohm, since it claims to have twice that amount of watts rms. That Pioneer would run into the same problem, I think. Am I wrong? Or are you guys suggesting I use a 2 ohm load? Also, I can't seem to find any "AA Assasin" subs. I tried searching for "AA Assassin" as well on google and on ebay. Where can I find those? Also, is there any tutorials on the net for finding the real watts? |
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Gold Member Username: GoatinOhio U.S.A Post Number: 1274 Registered: Jan-06 | http://www.ascendantaudio.com/arsenal_page.html Assasins are pure SQ subs check these ^. I personaly would not stress that amp past 2 ohm. |
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New member Username: HebenPost Number: 8 Registered: May-06 | Ok here's what I'm thinking, tell me if I'm wrong. If there's a decent chance the amp will do 1ohm then I'd like to give it a shot since it says it's stable and has thermal and overload protection. So can anyone recommend any subs that'll take somewhere close to 1600w rms into 1 ohm? The legacies have a 5yr. warranty and say that 2 of 'em will take 2000w rms into 1 ohm for $65 ea. It'd be nice if I could find something like that by a quality company for close to the same price. The closest thing I've found so far is the Ascendant Arsenal 12", $180 ea. 750w rms, 4ohm dvc, 3yr warranty. So what do you guys think? You've been a HUGE help so far, thanks alot! |
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