Members jimccolorado Posted February 8, 2010 Members Share Posted February 8, 2010 Our leader has a PA with 2 Behringer 1800x subs powered by a Crown 402s. Mains are Behringer 1502 rated 400/800@8 ohms driven by A Behringer 2500. We also use a dbx Drive Rack. The subs put out very little. Could we do better by bridging the Crown? It's only rated at 350 w stereo into an 8 ohm load. Or use the Crown on the mains and run subs from the Behringer 2500? Link to comment Share on other sites More sharing options...
Members tlbonehead Posted February 8, 2010 Members Share Posted February 8, 2010 well, obviously you want a little more powerr to the subs in most situations. However, 300-350 watts is plenty for those subs. They are ok, but not too beefy. If that doesn't get you there, you need more speaker. Link to comment Share on other sites More sharing options...
Members RoadRanger Posted February 8, 2010 Members Share Posted February 8, 2010 I'd definitely swap the amps the other was 'round. Better yet sell that P.O.S. Crown and get another EP2500 - I last used an amp without a clip limiter in the 70's . As you have a driverack it is usable but make sure you have it limited properly. But the most likely cause of having low output on the subs is that the driverack isn't set up properly - what is the gain to the mains amp vs the gain to the sub amp? Link to comment Share on other sites More sharing options...
Members Harmonycat Posted February 8, 2010 Members Share Posted February 8, 2010 With its 1,800-Watts power handling capability, the B1800X cranks out massive amounts of aggressive bottom-end, making it the ideal way to add tremendous punch to your current sound system. That is a quote right of the Behringer website. Looks like they really don't live up to the hype! The B1800X PRO features a powerful 18" long-excursion LF driver in a tuned enclosure, providing rich, tight bass all the way down to 40 Hz. That Link to comment Share on other sites More sharing options...
Members RoadRanger Posted February 8, 2010 Members Share Posted February 8, 2010 Bridging into these subs will only cause driver failure.Can't bridge a 402 into 4 ohms anyways. Betcha a beer they don't have the gain to the sub amp up high enough anyways . As for the marketing BS they ain't any worse than the other companies' MI level gear BS. Link to comment Share on other sites More sharing options...
Members Harmonycat Posted February 8, 2010 Members Share Posted February 8, 2010 Can't bridge a 402 into 4 ohms anyways. Betcha a beer they don't have the gain to the sub amp up high enough anyways . As for the marketing BS they ain't any worse than the other companies' MI level gear BS. Well nobody says they can't.:lol: Marketing BS? Uli is the King!:poke: Link to comment Share on other sites More sharing options...
Members modulusman Posted February 8, 2010 Members Share Posted February 8, 2010 With its 1,800-Watts power handling capability, the B1800X cranks out massive amounts of aggressive bottom-end, making it the ideal way to add tremendous punch to your current sound system. That is a quote right of the Behringer website. Looks like they really don't live up to the hype! The B1800X PRO features a powerful 18" long-excursion LF driver in a tuned enclosure, providing rich, tight bass all the way down to 40 Hz. That Link to comment Share on other sites More sharing options...
Members allexcosta Posted February 8, 2010 Members Share Posted February 8, 2010 Our leader has a PA with 2 Behringer 1800x subs powered by a Crown 402s. Mains are Behringer 1502 rated 400/800@8 ohms driven by A Behringer 2500. We also use a dbx Drive Rack. The subs put out very little. Could we do better by bridging the Crown? It's only rated at 350 w stereo into an 8 ohm load. Or use the Crown on the mains and run subs from the Behringer 2500? The best advice here would be: Read this forum for a couple of months, then sell everything you have minus the driverack and start from scratch... Link to comment Share on other sites More sharing options...
Members tlbonehead Posted February 8, 2010 Members Share Posted February 8, 2010 Its actually one of Behr's better pieces. Those subs don't go too low but with 300-350 watts into them they will add decent thump to a budget system. Link to comment Share on other sites More sharing options...
Members agedhorse Posted February 9, 2010 Members Share Posted February 9, 2010 350 watts is just about right for the subs, especially for the type of user they are typically sold to. Link to comment Share on other sites More sharing options...
Members boomerweps Posted February 9, 2010 Members Share Posted February 9, 2010 I had a pair of those for a while, had to replace one of the woofers under warranty after using outdoors with one mismatched bridged amp per sub, basically 700 watts to one and 1000 watts to the other. Previously, indoors I ran them 350 watts each and they were alright but nothing great. AFTER the repair, I ran them in stereo off an RMX2450 for 500 watts each. They worked much better and sounded great INDOORs. I hope you are wiring them to bypass the internal passive crossover. Too high a crossover frequency, not a sharp enough filter, and even wiith the DRPA you don't want to run the signal through another set of filters. Boomerweps Link to comment Share on other sites More sharing options...
Members stix 518 Posted February 9, 2010 Members Share Posted February 9, 2010 Just as an FYI: The Crown XLS Series, from the 202d right up to the 802d CAN be bridged per the Crown Forum. This is a common misconception due to Crown not listing the power ratings in this configuration. However, there is a marketing/reporting/compliance reason why they can't list it in the specs - not that the amp isn't capable of bridging to 4 ohms. Pre "d" series, they all could be bridged (older ones required a special pin realignment on the XLR Y input cable). The following was posted by DGlass (a Crown Staff Member) on the Crown Forum re: XLS 4 Ohm Bridged mode: Crown doesn Link to comment Share on other sites More sharing options...
Members jimccolorado Posted February 11, 2010 Author Members Share Posted February 11, 2010 Tried to respond on my iPhone, but didn't go through. Oh well.Thanks to all. I'll play with the gain this weekend, I truly think the problem lies somewhere in the setup of the Drive Rack. Will report back when we figure this out. Thanks again. Link to comment Share on other sites More sharing options...
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