Crossover points for JBL Lab q system |
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Art Welter
Registered User Joined: 15 December 2011 Location: New Mexico Status: Offline Points: 15 |
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The best way to check out the passive crossover would be to look at the response with a RTA or Smaart or any of many other test programs. Short of that, sweeping a tone, or the void digidrive should give you an approximate idea where the 2402/5 come in. As far as the worth of the speakers, the raw speakers probably would sell for more than the finished cabinets, old "point and shoot" speakers are not much in favor, and the ported W bin does not go very low by today's standards. Don't know the UK market for used drivers, but in the USA you might be lucky to get 25% of new cost for used ceramic magnet drivers. I designed a proprietary system quite similar to the Lab Q, sold the company using the cabinets (Southern Thunder Sound, Inc.) off in 1992. I heard about ten years ago from a former employee that many of the cabinets had been stripped of drivers and thrown in a dumpster. Oh well.. |
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Requiem
Old Croc Joined: 20 January 2011 Location: Bristol Status: Offline Points: 1805 |
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Ah savage, i thought they would be worth quite a bit... anyway i didnt pay a lot for them so its all good. cheers for your help
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www.requiem-soundsystem.com
Custom Martin Audio WSX, USB & CSG Soundsystem based in Bristol |
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knet94
Old Croc Joined: 31 March 2008 Location: NW London Status: Offline Points: 1510 |
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If you can afford it take everything off the passive crossover and run them on separate amps with your LMS. I find that you get much better control on the HF that way. My current configuratiom is 5 way so sub bass 18s, kick bass 15s, midrange12s, Horns 2446s and bullets 2402s all on separate amps. It never sounded quite right to me with the bullets on a passive 7k high pass filter.
Edit You can also set the delay individually for the comps & the bullets. Edited by knet94 - 20 December 2011 at 4:56pm |
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Requiem
Old Croc Joined: 20 January 2011 Location: Bristol Status: Offline Points: 1805 |
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Yeah i could do that, but for now im going to leave it as it is because i dont have a small amp to run the bullets. i do have a 75w per channel 1u amp but needs repair. cheers
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www.requiem-soundsystem.com
Custom Martin Audio WSX, USB & CSG Soundsystem based in Bristol |
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VECTORDJ
Young Croc Joined: 11 June 2006 Location: United States Status: Offline Points: 515 |
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Hi, Sorry for being so late....Just found this story line...Is the Lab Q w-bin the same as the Keele JBL w-bin???? In photos on line it looks deeper????? Thanx, VECTORSONICS
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