DBXPro without Sub
Cybernalt
Posts: 22
For an all acoustic setting, I'd like to try running one set of speakers *RFC-312's from one set of outputs, and another set *QSC-K8's out another ... with no subwoofer.
Is there a configuration that lets one run without a sub?
... maybe this is my answer:
"Set up a 1 (or 2 for stereo) x 6. In other words, in the wizard set-up process select "custom" "bi-amp" "with subs". This routes highs to hi, mids to mid, and lows to low. Now go into the x-over section and simply open up the filters' bandwidth to be "full range". You'll have HPFs on all outputs, and LPFs on L & M (not hi)."
Is there a configuration that lets one run without a sub?
... maybe this is my answer:
"Set up a 1 (or 2 for stereo) x 6. In other words, in the wizard set-up process select "custom" "bi-amp" "with subs". This routes highs to hi, mids to mid, and lows to low. Now go into the x-over section and simply open up the filters' bandwidth to be "full range". You'll have HPFs on all outputs, and LPFs on L & M (not hi)."
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Comments
For this to become easy you need to think like an engineer, building a system for a drummer, or guitar player.. they think that they cannot imagine things in terms of outputs like the DR260, but speaker systems... so, instead of having outputs 1 and 2 feeding the horns in a 3 way system, it's the speaker HIGH outputs instead.
A 2x2 system is a stereo 2 way (stereo tops)
A 2X4 system is a stereo 4 way (bi-amp tops
And 2X6 system is a 6 way system ( bi-amp tops with stereo subs subs
Variations on this are a mono sum (2X3 2X5) would be High outputs and left low out, and High, L/R and mid L/R and left low outs...
The lows are the only summing outputs ( both have exactly the same output by the way...) and would be stereo tops and mono sub, and bi-amp tops and mono sub respectively...
So, once you see how this works simply set up a bi-amp stereo tops and manipulate the crossovers. Set the tops up with the set that requires the most equalization because you have 3 PEQ's put the other set on the mid outs.
Press the Xover button and note the H, M, and L in the upper left corner of the screen. In a 2X4 setup you only have access to the high (H) and Mid (M) outputs... the mid Low outs are shut off.
Use the <prev next> and rotary encoder along with the Xover button to set the HPF for the High outs to the 3dB down point for safety sake or the 10dB down point with a steep slope.. next select the M outputs and set the HPF as above but ALSO set the LPF because if it was a midrange it would be set too low for a fullrange speaker...so you could choose to set it to out, or select a 6 dB filter and start it at 15khz or lower or higher depending on the purpose (I like LPF's for monitors...helps with feedback)
Any level disparity can be dealt with using the crossover gains, the amp gains, or the powered speaker gains.. doesn't matter a whole lot which you choose.
Just don't cover the same space with dissimilar speakers because that will unleash all manor of sonic chaos.. a topic for a future rambling perhaps...right now, it's bed time for bonzo...night all...
"Set up a 1 (or 2 for stereo) x 6. In other words, in the wizard set-up process select "custom" "bi-amp" "with subs". This routes highs to hi, mids to mid, and lows to low. Now go into the x-over section and simply open up the filters' bandwidth to be "full range". You'll have HPFs on all outputs, and LPFs on L & M (not hi)."
Along with Gadget's detail.... Yes, that is your answer.