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08-27-2011, 10:05 PM
| | | | Best way to hook this rig up (Preamp, Crossover, Amp, Speakers)?
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Please help me someone! As I am a newbie to the live sound amp thing.
I am trying to figure out the best way to hook this rig up.
I have a BMax Preamp, DBX 223s crossover, an EP 4000 amp, a 2X10 cab and a 1X15 cab.
Can (or should I) run a Y cable from the preamp main out (1 TRS unbalanced output jack) into channels 1 & 2 of the crossover to get a stereo input? Then, output from crossover to channels 1 & 2 of EP400 amp. (If yes, which y cable would I use? 1/4" Male TRS to Dual male TRS, TRS to dual male TS, or TS to Dual male TS).
I was thinking this way would give me more control over the full signal in the crossover realm.
Or, should I just run the Preamp main out into the crossover in Mono Mode?
I'm just not sure which would give me the best results of a good sounding sensible setup.
Any suggestions on this 'cause I'm going crazy over here.... |
08-27-2011, 10:12 PM
| | | | BTW, this set up of course is to accommodate a 5 & 6 string bass guitar. |
08-28-2011, 05:27 AM
| | Registered User | | Join Date: Sep 2006 Location: Birmingham, UK | | | I would definitely run the crossover in mono; have you decided on a frequency to cross at?
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08-28-2011, 06:54 AM
| | Registered User | | Join Date: Sep 2006 Location: Roswell, GA | | | You can't get stereo with only 1 power amp and only 1 of each cabinet.
Preamp mono to x-over. Low freq signal to 1 side of power amp, high freq signal to other side of power amp. 1-15 cab gets fed from the low freq side of the amp, the 2-10 gets fed from the high side.
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08-28-2011, 07:31 AM
| | | | Ah.... This is what I needed to know. Thanks much for the info. Haven't yet decided at what frequency to cross at. I've heard around 100hz. I haven't completely set rig up so I've not been able to mess with it yet (my equipment is at the rehearsal site) I'll get to it this Wednesday. Any suggestions on x-over points? |
08-28-2011, 07:48 AM
|  | Registered User | | Join Date: Dec 2002 Location: Virginia Beach, VA | | Quote:
Originally Posted by daknotty7 Ah.... This is what I needed to know. Thanks much for the info. Haven't yet decided at what frequency to cross at. I've heard around 100hz. I haven't completely set rig up so I've not been able to mess with it yet (my equipment is at the rehearsal site) I'll get to it this Wednesday. Any suggestions on x-over points? | A lot depends on the cabs but 100 hz is a good starting point.
Riis
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08-28-2011, 01:32 PM
| | | Quote:
Originally Posted by daknotty7 Please help me someone! As I am a newbie to the live sound amp thing.
... |
K.I.S.S. These are bass cabs, not PA speakers.
Get two matching cabs, being as they’re full range, run them thusly, EQ to taste, and life will be good. 
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08-29-2011, 02:06 PM
| | | | Thanks all. Very helpful. |
08-31-2011, 04:56 PM
| | Registered User | | Join Date: Mar 2007 Location: White Plains | | | Personally, I'd lose the crossover.
Bass>Preamp>Amp>Cabs
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08-31-2011, 11:06 PM
| | | Quote:
Originally Posted by Marko5657 K.I.S.S. These are bass cabs, not PA speakers.
Get two matching cabs, being as they’re full range, run them thusly, EQ to taste, and life will be good. | Quote:
Originally Posted by bassgod0dmw Personally, I'd lose the crossover.
Bass>Preamp>Amp>Cabs | I agree!
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08-31-2011, 11:21 PM
| | | | thirded!
a crossover just means that one of those two full-range bass cabs will have no lows, and the other will have no highs, so your overall sound will be weaker.
now if you had say, an 18 or a 2x15 cab and a small sealed 2x10 or single 12 (i.e., a big sub cab and a little highs cab), a crossover might make some sense. cross something like that at 100Hz, and it could sound reasonably good. (not as good as two full-range 4x10 cabs, but there you go.)
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Last edited by walterw : 08-31-2011 at 11:24 PM.
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09-01-2011, 06:17 AM
|  | bassist for staind | | | | | try the crossover at 100-200hz as suggested, but also try them full range, they will probably have more sound output in full range mode.
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