Members davis25 Posted May 22, 2011 Members Share Posted May 22, 2011 I hope this doesn't sound too stupid, but, is it possible to get two power amps that put out 3000W per channel at 2 ohms each with a budget of $2500-$3000 for both? Doesn't matter if they are older ones, just reliable. Link to comment Share on other sites More sharing options...
Members desertzj Posted May 22, 2011 Members Share Posted May 22, 2011 what are you trying to drive at 2 ohms? There are alot of negatives with this setup. You would probably be better off with more amps at a 4 ohm load. Link to comment Share on other sites More sharing options...
Members RoadRanger Posted May 22, 2011 Members Share Posted May 22, 2011 XTI6000 - about $1250 each new Link to comment Share on other sites More sharing options...
Members NUSound Posted May 22, 2011 Members Share Posted May 22, 2011 what are you trying to drive at 2 ohms? There are alot of negatives with this setup. You would probably be better off with more amps at a 4 ohm load. I think a better question is: what are you trying to drive with that much power? Link to comment Share on other sites More sharing options...
Members RoadRanger Posted May 22, 2011 Members Share Posted May 22, 2011 I think a better question is: what are you trying to drive with that much power?That's only 750w per driver - reasonable for pro subs. Link to comment Share on other sites More sharing options...
Members Coaster Posted May 22, 2011 Members Share Posted May 22, 2011 That's only 750w per driver - reasonable for pro subs. assuming they are 8 ohm subs. Link to comment Share on other sites More sharing options...
Members RoadRanger Posted May 22, 2011 Members Share Posted May 22, 2011 assuming they are 8 ohm subs.Don't know of any pro subs that use 4 ohm drivers ... Link to comment Share on other sites More sharing options...
Members davis25 Posted May 22, 2011 Author Members Share Posted May 22, 2011 They are the Yamaha SW218V subs, 4 ohm boxes. If we went to a 4 ohm load, what amps would be adequate for this? Going this route, we would have 4 amps powering 8 subs. Link to comment Share on other sites More sharing options...
Members RoadRanger Posted May 22, 2011 Members Share Posted May 22, 2011 No way are those "pro" subs and they can only take about 1/2 the power of a "pro" one. You should really sell those and buy 4 decent ones that would have the same total output. SRX728S's maybe? I'd not use anything bigger than an IPR3000 on those Yamaha's, one per channel. Link to comment Share on other sites More sharing options...
Members davis25 Posted May 22, 2011 Author Members Share Posted May 22, 2011 XTI6000 - about $1250 each new Wow, where are you finding the XTi6000 new for that price? I've been checking on eBay and they are running about $1500-$1999 new. Link to comment Share on other sites More sharing options...
Members RoadRanger Posted May 22, 2011 Members Share Posted May 22, 2011 Wow, where are you finding the XTi6000 new for that price? I've been checking on eBay and they are running about $1500-$1999 new.Google "shopping" is your friend . Link to comment Share on other sites More sharing options...
Members davis25 Posted May 22, 2011 Author Members Share Posted May 22, 2011 Google "shopping" is your friend . Awesome!!! Thanks! Link to comment Share on other sites More sharing options...
Members agedhorse Posted May 22, 2011 Members Share Posted May 22, 2011 Don't know of any pro subs that use 4 ohm drivers ... M-Pro 418 and others. Link to comment Share on other sites More sharing options...
Members agedhorse Posted May 22, 2011 Members Share Posted May 22, 2011 They are the Yamaha SW218V subs, 4 ohm boxes. If we went to a 4 ohm load, what amps would be adequate for this? Going this route, we would have 4 amps powering 8 subs. 750 watts per driver is way too much power for those drivers. 400-500 watts per driver (no more than 2000 watts per channel at 2 ohms) is a MUCH better match. I have reconed many of these drivers and they are not all that robust. In fact, if you are not using correct HPF's, 350 watts/driver is all I would consider. Link to comment Share on other sites More sharing options...
Members desertzj Posted May 22, 2011 Members Share Posted May 22, 2011 QSC GX7 or Crown XTI2000 I would only put 800W to 1000W max into those subs. I ran a pair at one point of an XTI2000 with great results. But RoadRanger is correct about better options out there. The JBL SRX are great but really like power before they come alive. There are many good pro subs that are really efficient that will compare to the JBL's without the need for giant power amps. Link to comment Share on other sites More sharing options...
Members desertzj Posted May 22, 2011 Members Share Posted May 22, 2011 Aged posted while I was typing. I'm glad to see that his numbers of 400-500W per driver matched up with my 800-1000W per box. I would listen to what he has to say he really knows his stuff. Link to comment Share on other sites More sharing options...
Members RoadRanger Posted May 22, 2011 Members Share Posted May 22, 2011 Seein's how he's been running four of them subs and needs four more I'd suspect it's not so much that he needs more but that the suspension of his present ones are so stretched out that their output has gone to Hades . Link to comment Share on other sites More sharing options...
Members RoadRanger Posted May 22, 2011 Members Share Posted May 22, 2011 M-Pro 418 and others.IME any speaker with "pro" in it's name isn't . But yes, that one is an exception to both rules. By "pro" I meant 500wrms+ drivers with 4+ inch voice coils. I do own four 4 ohm subs I'd consider "pro" but they are all odd ducks with non-standard drivers. The Yamaha's in question have 3 inch voice coils rated at 300wrms. I've put 500w into similar drivers before but with full realization that they were not going to last long at that power. I'd NEVER put 750w into such a driver and expect the suspension to not quickly fatigue. Link to comment Share on other sites More sharing options...
Members heath_eld Posted May 22, 2011 Members Share Posted May 22, 2011 There are many good pro subs that are really efficient that will compare to the JBL's without the need for giant power amps. What are some other options? Link to comment Share on other sites More sharing options...
Members desertzj Posted May 22, 2011 Members Share Posted May 22, 2011 What are some other options? EV QRx218S, EV PX2181, Community VLF218, Community TLF218, Danley TH115, Danley TH118, QSC GP218-sw I know not all these are in the SRX728S Price range but they are all good subs. And I'm sure others could add alot more to this list. Link to comment Share on other sites More sharing options...
Members desertzj Posted May 22, 2011 Members Share Posted May 22, 2011 On another note, Is there any drivers out there that work well in the Yamaha box that would allow davis25 to get more out of his 4 current subs instead of hauling 8 or spending alot of money on new subs? Link to comment Share on other sites More sharing options...
Members Vinny D Posted May 22, 2011 Members Share Posted May 22, 2011 The Peavey Low Rider works well in that box, but it is still like throwing money out the window. Link to comment Share on other sites More sharing options...
Members Coaster Posted May 22, 2011 Members Share Posted May 22, 2011 the box isnt well made or even made from decent material. its sawdust stuck together with tape and staples. if you drop one a foot you will end up with a collection of particle board peices. Link to comment Share on other sites More sharing options...
Members desertzj Posted May 22, 2011 Members Share Posted May 22, 2011 I forgot it was particle board. ya ditch them for something else before you are to invested in the wrong solution. Link to comment Share on other sites More sharing options...
Members Racehead Posted May 22, 2011 Members Share Posted May 22, 2011 its sawdust stuck together with tape and staples.. This description made me laugh out loud haha ! Link to comment Share on other sites More sharing options...
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