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Author Topic: DRPA Full Range but Three Way Configuration...  (Read 5536 times)

John Woodfield

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DRPA Full Range but Three Way Configuration...
« on: January 06, 2013, 08:59:28 AM »

Currently I am using my DRPA to crossover my subs and run my TOA HX-5's out of the high in full range then crossing over. This week I'm adding side fill speakers. Is it possible to run the DRPA in three-way mode but run both the mid and high outputs full range and cross them over on the low end?

I already have the DRPA split so I can aux-feed my subs so I can't split the high out.
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Luke Geis

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Re: DRPA Full Range but Three Way Configuration...
« Reply #1 on: January 06, 2013, 07:40:12 PM »

Not 100% certain on what you mean, but I do know that you can pretty much set any crossover point you want for each band in the DRPA.
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John Woodfield

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Re: DRPA Full Range but Three Way Configuration...
« Reply #2 on: January 06, 2013, 08:47:06 PM »

Not 100% certain on what you mean, but I do know that you can pretty much set any crossover point you want for each band in the DRPA.

To Simplify, I want to output full range on both the high and mid outputs.
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Tom Burgess

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Re: DRPA Full Range but Three Way Configuration...
« Reply #3 on: January 06, 2013, 08:54:11 PM »

I was a little confused by the OP as well.  Although I haven't done this personally I know that you can setup a 2X3 config, run the Low Out and High Out as a 2-Way, then use the Mid Out as a full range by setting the X-over, HPF, and LPF accordingly.  I've seen the setup over at the dbxpro.com forum but have never implemented it so my apologies for that probably not being terribly clear.  You might check over there for the specifics.
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Re: DRPA Full Range but Three Way Configuration...
« Reply #4 on: January 06, 2013, 08:57:54 PM »

To Simplify, I want to output full range on both the high and mid outputs.

I believe all you have to do is configure it that way.  I've avoided using these units for a long time now, but I did have one or two of them when they first came out>

You should be able to set your cross-over points on the "mids" and "highs" to be the same thing.  I take it you're using one of the L/R inputs for your aux-fed subs and the other for the mono feed to your tops.  The "mid/high" designation should be more to keep track of your signal chain than "just mids" and "just highs". 

Edit:

Looking at the DRPA "features" tab on their website, there are 2x3, 2x4, 2x5 and 2x6 crossover configurations all set up for you.  Go by these, pick the one you need and forget about the labels on the output other than for nominal reference.
« Last Edit: January 06, 2013, 09:21:44 PM by dick rees »
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Eric Valenzuela

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Re: DRPA Full Range but Three Way Configuration...
« Reply #5 on: January 07, 2013, 04:09:03 PM »

Currently I am using my DRPA to crossover my subs and run my TOA HX-5's out of the high in full range then crossing over. This week I'm adding side fill speakers. Is it possible to run the DRPA in three-way mode but run both the mid and high outputs full range and cross them over on the low end?

I already have the DRPA split so I can aux-feed my subs so I can't split the high out.

Not sure what kind of mixer you have, but I typically do this using a sub out directly from the mixer, so I don't even have to mess with my DRPA.
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Douglas R. Allen

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Re: DRPA Full Range but Three Way Configuration...
« Reply #6 on: January 07, 2013, 05:20:38 PM »

Currently I am using my DRPA to crossover my subs and run my TOA HX-5's out of the high in full range then crossing over. This week I'm adding side fill speakers. Is it possible to run the DRPA in three-way mode but run both the mid and high outputs full range and cross them over on the low end?

I already have the DRPA split so I can aux-feed my subs so I can't split the high out.

When you say
 " I already have the DRPA split so I can aux-feed my subs so I can't split the high out." could you explain this a little more?
I owned a DRPA and a Drive Rack 260. I do know you can make any output full range out or act as a midrange or sub out or high (horn) out.
Unless you use the mono sub configure setup.

I am guessing your running the DRPA with mono signals. One input is fed from your aux and the other input is fed from maybe left out from your mixer?
If you have it set up as 2X3 the three outputs fed from your aux can be setup any way you want it. The 3 outputs fed from your Left on your mixer can be setup as well any way you want them.
I believe your asking can you have 3 outputs fed from your Left input setup for say 100hz and below taken out and 100hz and above going out of them. You'll just have to set up the low cut filters and eq/delay/level adjustments on these 3 outputs.

Am I close?

Douglas R. Allen


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duane massey

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Re: DRPA Full Range but Three Way Configuration...
« Reply #7 on: January 08, 2013, 01:41:55 AM »

Unless I am mistaken in the 2x2 or 2x3 configuration the settings are linked on L&R outs. You can't set the L mid out, for example, differently than the R mid out, and same for other L&R outs. That's one of the drawbacks to the DRPA, it is pretty limited in the ability to set up configurations other than standard 2x3, 2x2, 1x4, 1x5, 1x6 arrangements.
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Bob Leonard

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Re: DRPA Full Range but Three Way Configuration...
« Reply #8 on: January 08, 2013, 03:53:37 AM »

What the OP is attempting to do here is find an easy way to run more cabinets than the DRPA is actually designed to run in full range mode, probably to use the DRPA features for the additional cabinets as well. With the 480 or 4800 direct connections are made using a "wire", or no crossover at all, and directing an input to an output with whatever you want in between. I think you can also do this with a 260 but don't remember. In any case the DRPA is cheap enough the proper way to accomplish the goal would be to buy a second DRPA, or bypass the DRPA, run the second set of cabinets full range, and use an outboard EQ for them. Of course the subs would be run through the DRPA as well. This is the way I ran a dual system for years with no loss in sonic quality. Eventually I ran a pair of 260s, then a 480, now a 4800 and the 260 for additional monitors.
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John Woodfield

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Re: DRPA Full Range but Three Way Configuration...
« Reply #9 on: January 08, 2013, 05:25:28 AM »

What the OP is attempting to do here is find an easy way to run more cabinets than the DRPA is actually designed to run in full range mode, probably to use the DRPA features for the additional cabinets as well. With the 480 or 4800 direct connections are made using a "wire", or no crossover at all, and directing an input to an output with whatever you want in between. I think you can also do this with a 260 but don't remember. In any case the DRPA is cheap enough the proper way to accomplish the goal would be to buy a second DRPA, or bypass the DRPA, run the second set of cabinets full range, and use an outboard EQ for them. Of course the subs would be run through the DRPA as well. This is the way I ran a dual system for years with no loss in sonic quality. Eventually I ran a pair of 260s, then a 480, now a 4800 and the 260 for additional monitors.

I will report back when I've played with it.
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Mike Christy

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Re: DRPA Full Range but Three Way Configuration...
« Reply #10 on: January 08, 2013, 05:54:18 AM »

Unless I am mistaken in the 2x2 or 2x3 configuration the settings are linked on L&R outs. You can't set the L mid out, for example, differently than the R mid out, and same for other L&R outs. That's one of the drawbacks to the DRPA, it is pretty limited in the ability to set up configurations other than standard 2x3, 2x2, 1x4, 1x5, 1x6 arrangements.

I second this. There is only one crossover menu (the LCD graphics) for setting HP/LP filters in stereo. The stereo routing is hardwired internal, you have no control over independent L/R parameters via the menus.
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Mike Karseboom

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Re: DRPA Full Range but Three Way Configuration...
« Reply #11 on: January 08, 2013, 05:44:52 PM »

John - this is pretty easy to do.  I am assuming you are aux driving your subs with a separate feed such as Subgroup fader or perhaps panning all your bass instruments Left and other channels Right.  As you have already discovered you must run everything mono since there are only two inputs on the DRPA. 
 
Let's say you are running your mono aux sub signal into the DRPA Left input.  Then you run your other instruments/vocals mono output into the DRPA Right input.  Your DRPA output connections are as follows:
    Left LOW out  >  Subs
    Right Mid out  >  Full range speakers A
    Right High out >  Full range speakers B
You must get these outputs correct both in terms of L/R and Low/Mid/High.
 
Then to the DRPA software setup.  One easy way is to start with a 2X6 configuration.  That is Left and Right inputs going to Left/Right Low/Mid/High.  You can build one from scratch or just find a preset.  Figure that you will likely be changing all the other settings such as xover, geq, etc. anyway.
 
Here is an example program showing a 2x6 configuration.  I just renamed one of the presets to
AUXSUB+ 2x6.
 

 
The key item to set up is the crossover.  So press the Xover button and press the NEXT PAGE button (if needed )enough times to get to the first screen for the Lows .  Then set your subs high pass filter as needed.  This is where you would set the gain for the subs also.  These numbers are for my system but will be different for yours. Note that these traces on the screen will look something like this when you are done, but not necessairly when you start.  Don't let that confuse you.
 

 
 
Press the Next button to get to the next screen for lows.  Then set the low pass (crossover point) and filter type for the subs. In my case I used 100Hz and an LR24 filter type.
 

 
Now for the MID channel press Next again.  The default will probably have the mids being a bandpass something like 100Hz to 4kHz.  The idea is to change the Low Pass on the Mids so that it goes all the way up to OUT.  First set the high pass (crossover point).  In my case I wanted 100Hz and needed a gain of -5dB for good acoustic balance with the subs.  Yours will likely be different.
 

 
Press Next and change the Low Pass for the mids to be all the way up to OUT.  Now that mid channel will output full range from 100Hz to 20kHz
 

 
 
Finally press Next page to setup the High outs for full range.  The default low pass for the High channel is all the way up to OUT and is non-adjustable.  That is OK and what we want.  The thing you want to change is the High Pass on this channel.  Take it down to where you want the crossover to be.  In my case, since these were different speakers, they sounded better with a 90Hz crossover point and I needed a different gain as well.
 

 
You still need to review all the other items like GEQ, PEQ, etc. to make sure they are set up the way you want.  Hope this helps.
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Re: DRPA Full Range but Three Way Configuration...
« Reply #11 on: January 08, 2013, 05:44:52 PM »


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