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Hey everyone. might remember me I had 2 JL's in and i think they are dying. It might partly be because they are more than 3 years old, and i am the 3rd owner of these subs. i have a legacy 1800 watt 900*2 red series 2 amp. 1800 watt maxx and 900 bridged to 2 subs. I need 2 10'' subs that can fit in a truck box, and match the amp. The main thing is that the subs and amp match for optimum performance. any suggestions? thanks Replies (29) lewis on 04/13/2006 22:23:14 do you have the model number of the amp and the subs you currently have?? how big is the box? Ash on 04/13/2006 22:28:36 Of course I remember you. You were the one that gave us such a hard time! GRIN Explain "dying". Are they making a slapping or scrubbing noise? lilschtive on 04/13/2006 23:03:32 hahahah ill try to service all your needs this time as in "dying" i can refer to that as distortion, and when turned up at volume it used to sound good at, it is distorted, or doesnt give out as much bass. Even if they do work, they look like crap and have taken a hard beating! lilschtive on 04/13/2006 23:06:21 It is the LA1870 Here is some info on it: 2 x 900 Watts Output 1 x 1800 Watts Bridged Output 1800 Watts Total Output Fullly Adjustable Electronic Crossover Network Soft Turn On/Off Circuit 2 Ohm Stereo Stable Bridgeable Into 4 Ohms Mosfet PWM Power Supplies Variable Gain Control Hi/Low Level Inputs Ash on 04/14/2006 18:22:20 Realistically speaking, this amp will probably put out no more than 300-400rms (continuous watts) in bridged mode. That's still okay if some decent woofers are mated with it. To use this 4 ohm stable amp (bridged) to the fullest, you will have to use a pair of 4 ohm per coil dual voice coil subs or a set of 8 ohm single voice coil subs. Those should not be hard to find, but a set that will fit in the tight space behind the mazda seat with enough airspace to perform properly might. Depends on your needed leg room. Any budget constraints before we do a search? swez on 04/14/2006 18:48:46 Gave us a hard time? Errr, uhmmm, Do'h... I think I'll just stay neutral on that topic. ;-) Anyway, what are the fuse values used in this Legacy amp? We can approximate the realistic RMS wattage from this info. With that, then we can look at subs that fit your box. Speaking of the sub box, what are the external dimensions and wood thickness? That will help figure out what subs will do the job well in said box. Swez lilschtive on 04/14/2006 19:05:49 hahaha hard time? your thinking i gave you MORE than i hard time. Fuse values...not too sure what those are. as for the box: RIT Mobile Sound System Enclosure Type: sealed Subwoofer Opening Size: 10" Number of Subwoofers: 2 Enclosure Material: particle board Speaker Terminal Type: spring-loaded Sealed Chamber Volume: .71 cu.ft. 18" W x 15" H x 7.25" D Ash on 04/14/2006 19:11:59 It has a 40 amp fuse. Two 150-200 watt subs should do nicely. In that size enclosure most subs with a recommended .65 sealed will work. lilschtive on 04/14/2006 19:51:53 wood thickness...ild say 1/2 inch i cant find much info on how thick it is. lewis on 04/15/2006 01:05:47 WOW!!!! not to go off topic here (never saw any post by this guy before) but WOW!!!!! now to go in search of what causes so many problems (LOL) Ash on 04/15/2006 06:46:50 Easy, easy Swez.... I wouldn't recommend those subs as I used to have a pair. They sucked and the subs excursion was extremely limited. They just didn't suit sealed boxes good like they claimed. EBP is above 80 and xmax only 3.55mm! I know of a better deal for less money, but your going to have to measure the boxes internal depth. From the back of the board the subs sit in to the back of the inside of the box. http://credencespeakers.com/Merchant2/merchant.mvc?Screen=PROD&Store_Code=CSI&Product_Code=BN10SWPS8&Category_Code=BO Once you have taken an measurement then call them (1-866-210-8731) to make sure the subs will fit. You're going to have to act fast as there's no telling how much are left. The 4 ohm versions have already sold out! Though they are rated at 250rms each, in the box you are going to use them in power handling should be down to about where you need them. F3 should be about 53HZ and hardly, if any, bass boost will be needed. I considered heavily ordering a pair for myself so that should tell you something. Lil, I truly hope you appreciate all that we do here. lilschtive on 04/15/2006 11:23:52 I appreciate everything. the only thing i did not provide you with was the fuse values. im no eletrcial engineer, so i said" im not too sure what those are". I know WHERE they are and what they look like, but i dont know what you want me to say. i dont know how to find/define/tell you what the "fuse values" are? i went into my car, look at the fuse, took it out. i could not find anything about it. i dotn know what a fuse value is! (thats what i meant) i dont think i was being disrespectful, i was just trying to learn more about it. your makingm it very difficult, but i do appreciate it all. swez on 04/15/2006 11:31:23 Thanks Ash... you are right! I guess speaking my mind on certain subjects can get a bit strong. THINK it best for me to bow out of this post and let others handle Lil's needs. As you can tell, very few posters get 'under my skin' much... but those who do, I shall avoid in the future. It's just good form. Good luck guys, Swez lilschtive on 04/15/2006 11:31:36 how come subs like the ones ash and swez showed me are so cheap, and then JL sells a 10' w7 for like $300. is there a difference? Ash on 04/15/2006 11:45:40 Yes, it's called quality differences and marketing. First of all, in this game you get what you pay for except for a few cases (closeouts, sales, old stock, etc). Secondly marketing can determine a products worth if they are hyped up enough. Trust me, the second set I showed you are a good deal on old stock. The company I referred you to, I have dealt with them several times. They are reputable and can be one of those hidden treasures troves that few know about. I've ran those through a speaker box program (WIN ISD) and the results are very good and should be close, if not more, than what you are trying to attain with that amp. I really don't think you will find a better deal. If anyone here cares to compare the specs and price between the two or others, you will find that they will agree. Move fast!!! lilschtive on 04/15/2006 12:29:53 yeah those 4 ohm are sold out, so u want me to get the 8 ohm @ 39.99 ea? what a great deal. Ash on 04/15/2006 13:45:52 The $39.99 will actually cover the pair as that is how they are sold. Just tack on the shipping and your in there. swez on 04/15/2006 17:55:25 Hey, I owe you an apology dude! As you know, we just don't get along here on this site. It does not happen very often, but in rare cases, some folks just clash. We are in that camp and I don't wish to make things any worse from here on out. I am not pleased with my earlier post and have removed it as it was not appropriate. (thank you Ash for pointing that out) It just got a bit too personal. (You know the specific comment) And for that, I wish to apologize. The rest of the post, was an honest attempt to help you and also bring you to a higher level of awareness about site protocals. However, I stepped into a personal rebuke and made a less than kind remark. That, is very much out of character for me and this I do regret. Therefore, the reason for the apology. As for now, conduct your business here as you see fit. You are welcome as long as you wish. However, others will be answering your needs as I choose not to any more. Good luck and try the woofers mentioned by Ash. He knows his biz well and if he says it's a go, then press on and make it happen. Believe me, I feel bad about "my lapse comment". It was not appropriate and no need to push each other anymore. I've said my peace and am moving on. (We are all human and make mistakes) I am owning mine before you and all that review this post later. Hope you like the new subs... Swez Ash on 04/15/2006 19:01:53 Dang, Swez! It takes a big man with a big heart admit to himself and others. For that, I give respect to where it's due. As for the thanks, no need. I know you would do the same for everyone here. Press on Bro'! Now see "Lil" that's what it's all about. All of us here are humble people. Including you! That what makes this club such a unique one. I visited others, and all you see is flaming, if you don't know enough or don't have the best. Take the time to learn, and you will reap great rewards in this hobby! Now go and order them subs! GRIN swez on 04/15/2006 22:22:37 Ash, am glad you understand and are willing to stand with me as well. I appreciate that, more than you can guess. This site and the guys who frequent it, are like good friends. Several of us chat off the board and have developed very good rapport. For that, I am very grateful. It's been a rough month and perhaps a little R&R is in order here soon. As the old saying goes... "All work and no play... makes Swez a very dull boy". With that, it's time to break in the new fly rod, hit the streams and just enjoy what I like best, being outdoors, tossing a fly and just enjoy God's creation. Yes, will be on the board as well, but with less intensity for a time. Sometimes giver's need a break too. Carry on men, Swez lilschtive on 04/15/2006 22:55:07 well hey its partly my bad too. ive learned a lot since i last posted here. i looked back on some of my olld posts, and all i said was that i had a legacyt 1800 watt amp. thanks for all the info and time. i appreciate it. by the way, the subs are on order. if i pump up the volume, along with the 4 4'' speakers, will the subs stay strong or will they distort out? another thing: with my JL subs now, should i just sell them on ebay and try to make $40 for the shipping ? hah and last thing: swez said that i needed polyfill for these subs? or no? 1 more final thing: In general, i know a capacitor distributes enough power needed directly to the amp, so that it is equal through out the whole care. Does it give my amp/subs more power? or make them louder? lilschtive on 04/15/2006 23:00:30 i still cant get over that price of only $78 bucks with shipping. just for kicks, if i were to buy a JL 10-w7, for like $350, yuor telling me the cheaper sups will hit, sound and kick harder than the w7 Ash on 04/16/2006 06:24:58 Slow down "Lil", you gotta make sure you read the print well. Remember they are sold as a pair (2) for $39.99. Did you pay extra for quicker shipping? You did order the right set? http://credencespeakers.com/Merchant2/merchant.mvc?Screen=PROD&Store_Code=CSI&Product_Code=BN10SWPS8&Category_Code=BO I doubt very seriously that they would outdo or be on that level of that particular JL. Remember, you get what you pay for most of the time. However, for the money spent I think you will be very happy with them. You can look at names all day long. When you check the real specifications & run them through a program; only then will you know what to expect. When examined in that way, you will find a lot of companies don't live up to their name, while others offer more than usual for the price range. lilschtive on 04/16/2006 13:47:12 regular shipping for the pair of (2) subs is like $39...39 and 38 almst 80 bucks "I doubt very seriously that they would outdo or be on that level of that particular JL" -your saying the new subs wont be as good? Ash on 04/16/2006 16:50:32 Where do you live? That seems a little high. Normally I pay about $10-20, but maybe I'm closer than you. Just trying to make sure that you didn't order two pairs, but the price would be higher than what you paid. Did you have the actual 10 W7? Their mounting depth is over 9". You must be talking about another JL model. Anyway, that is apples and oranges. Those JL's are a competition sub and rated for far more power than what you ordered. Go and look up your actual sub's model# (on the backside), post it, and then I can make a guesstimated comparison. Either way the subs you ordered will sound good. lilschtive on 04/16/2006 18:42:59 Bay area, california 10W0-8 ( older model ) SVC, 8 ohms/sub; power is 125 Wrms/sub http://mobile.jlaudio.com/pdfs/10_12_15W0_MAN.pdf Ash on 04/16/2006 18:59:35 Actually they are almost identical, except for a couple of very small differences. After break-in, your new subs should play just a hint more low notes for it's required volume is not as high as the JL. Even that might not be audible. Like I said you have nothing to worry about. Just make sure you play them no higher than half volume for a while before cranking. They will need to be broke in! lilschtive on 04/16/2006 20:40:54 alright thanks Ash on 04/27/2006 18:34:00 Did you ever order those subs and have you received them? I've been wondering how things been coming along. Give a update when ya can. Copyright ClubKnowledge 2009 * All Rights Reserved |