drpa+ or dcx/deq2496?

The hows and whys of running sound.
Message
Author
laits
Posts: 136
Joined: Mon Mar 22, 2010 6:01 pm

drpa+ or dcx/deq2496?

#1 Post by laits »

I am going to be building a pair of 20" T39s, 3012lf loaded, for a small live band setup. In reading up on the need for limiting on the subs, I decided I should get either the drpa+ or dcx/deq2496 combo. The behringer combo is feature packed, but I am concerned about reliability with those units. The drpa+ should do what I need for delay, rta, eq, and such, but it does not have brickwall limiters.

My question: Are the limiters on the drpa+, with proper gain structuring, enough to protect the subs or do I have to take a chance with the behringer gear? Also, my budget is $500.
Built 2-OT12 (3012HO); 2-T39 22" (3012LF); 2-T39 16" (3012LF);
2-J12 (DL2512); 2-W8 (Beta 8A)

User avatar
subharmonic
Posts: 2061
Joined: Sun Mar 14, 2010 1:57 pm
Location: Mandan ND

Re: drpa+ or dcx/deq2496?

#2 Post by subharmonic »

I can't answer that question because I have the same question. However I was able to find the DRPA+ for $400 at www.karaokeequipment.com. Seems they have a lot of equipment at good prices. I never have bought through them though so I am not sure if they are a good seller.
2x T39, 1x T60, 1x THTLP, 1x AT(not built by me) 6x DR250
I need more bass

But this gal's built like a burlap bag full of bobcats
CW Mcall

Gregory East
Posts: 3495
Joined: Sat May 13, 2006 9:56 pm

Re: drpa+ or dcx/deq2496?

#3 Post by Gregory East »

500 for the processor? You should easily get a used dBa Driverack for that. Eq, limiters, the works, wish I had budget for one myself.

User avatar
DJPhatman
Posts: 5411
Joined: Mon Aug 14, 2006 5:08 am
Location: Warren, MI
Contact:

Re: drpa+ or dcx/deq2496?

#4 Post by DJPhatman »

I strongly suggest you consider buying a Crown XTi or Peavey IPR with DSP amp. Both have powerful DSP built in, no need for any other outboard equipment, extremely lightweight, very expandable, and you can sell your current amps to fund the purchase.
I know money often seals the deal, but seriously, quality is an investment, not an expense... Grant Bunter
Accept the fact that airtight and well-braced are more important than pretty on the inside. Bill Fitzmaurice

User avatar
jcmbowman
Posts: 1263
Joined: Fri Feb 01, 2008 3:40 pm
Location: Detroit, MI

Re: drpa+ or dcx/deq2496?

#5 Post by jcmbowman »

DJPhatman wrote:I strongly suggest you consider buying a Crown XTi or Peavey IPR with DSP amp. Both have powerful DSP built in, no need for any other outboard equipment, extremely lightweight, very expandable, and you can sell your current amps to fund the purchase.
FYI -

neither the XTi nor the IPR series have peak limiters..
Low End Junkie for over 20 years.

4 DR250s
4 Tuba36s @ 30" wide
2 ATs
...and a very serious addiction to the smell of BB sawdust and curing PL.

laits
Posts: 136
Joined: Mon Mar 22, 2010 6:01 pm

Re: drpa+ or dcx/deq2496?

#6 Post by laits »

I was hoping to do processor and rta mic for <$500.
Built 2-OT12 (3012HO); 2-T39 22" (3012LF); 2-T39 16" (3012LF);
2-J12 (DL2512); 2-W8 (Beta 8A)

SeisTres
Posts: 2688
Joined: Fri Apr 24, 2009 3:53 am
Location: Dallas, tx

Re: drpa+ or dcx/deq2496?

#7 Post by SeisTres »

I have the DRPA and, while not having the brickwall limiter, it does the job. Like you said, just mind the gain structure. Of course for added safety, instead of putting the whole 60volts into the 3012, lower it by 10volts as the plans recommend and you will have less of a problem, even if you don't have brick wall. However, if you're afraid of blowing the drivers and must have it, you would it either need the behringer combination or a 4 channel compressor/limiter between the drpa and amps. Granted that you're wanting to do stereo, if mono, you'd just need two channel compressor/limiter. Oh and another thing to note, the behringer multi-effect units can and will process a stereo signal, BUT they will process it with the identical setting, so you could the delay the signal in stereo by, let's say, 11 milliseconds, but you would not be able to one channel 11ms and the other 5ms, for example.
Built:6 t39, t18, 4 Jack10, 2 autotuba, 2 SLA,2 wedge, 2 TT, 2 Tritrix, curved sla, 2 otop212, 2 SLA pros, Ported 8" sub, 2 ported 210, dual ported 8" sub

User avatar
DJPhatman
Posts: 5411
Joined: Mon Aug 14, 2006 5:08 am
Location: Warren, MI
Contact:

Re: drpa+ or dcx/deq2496?

#8 Post by DJPhatman »

jcmbowman wrote:
DJPhatman wrote:I strongly suggest you consider buying a Crown XTi or Peavey IPR with DSP amp. Both have powerful DSP built in, no need for any other outboard equipment, extremely lightweight, very expandable, and you can sell your current amps to fund the purchase.
FYI -

neither the XTi nor the IPR series have peak limiters..
But they do have brickwall limiters, which the OP asked for. This is a suggestion since the OP is concerned about reliability. Since everything but RTA is available in the XTi, I made the suggestion. RTA can be done once outdoors, and the system can be tweaked from there at each venue, and saved in the XTi. IMHO, less is better, less in the signal chain, less equipment to load in and out, less weight to carry.
I know money often seals the deal, but seriously, quality is an investment, not an expense... Grant Bunter
Accept the fact that airtight and well-braced are more important than pretty on the inside. Bill Fitzmaurice

User avatar
David Carter
Posts: 1824
Joined: Mon Jan 01, 2007 7:20 am
Location: (East) Tennessee, USA

Re: drpa+ or dcx/deq2496?

#9 Post by David Carter »

DJPhatman wrote:
jcmbowman wrote:
DJPhatman wrote:I strongly suggest you consider buying a Crown XTi or Peavey IPR with DSP amp. Both have powerful DSP built in, no need for any other outboard equipment, extremely lightweight, very expandable, and you can sell your current amps to fund the purchase.
FYI -

neither the XTi nor the IPR series have peak limiters..
But they do have brickwall limiters, which the OP asked for. This is a suggestion since the OP is concerned about reliability. Since everything but RTA is available in the XTi, I made the suggestion. RTA can be done once outdoors, and the system can be tweaked from there at each venue, and saved in the XTi. IMHO, less is better, less in the signal chain, less equipment to load in and out, less weight to carry.
The only thing I didn't like about using the DSP in my XTi's was that, if I fed it a single input signal from my mixer and used the XTi crossover function, I could not adjust the input gain of the subs and tops independently since they were coming in as a single signal. That meant that the balance between subs and tops was fixed and could not be adjusted. For me, this was a major bummer. Everything else seemed to be fine.
Dave

Built:
- Omni 10 (S2010 + piezo array)
- 2 x DR250 (DL II 2510 + melded array)
- 2 x Titan 39 (BP102 - 14"W)
- 2 x Titan 39 (3012LF - 20"W)
- 4 x DR200 (Delta Pro 8B + melded array)

User avatar
AntonZ
Posts: 2687
Joined: Sun May 14, 2006 6:00 am
Location: NL

Re: drpa+ or dcx/deq2496?

#10 Post by AntonZ »

I hadn't thought of that yet, good point. You would have to hook up a laptop to the XTi in order to do that.

User avatar
David Carter
Posts: 1824
Joined: Mon Jan 01, 2007 7:20 am
Location: (East) Tennessee, USA

Re: drpa+ or dcx/deq2496?

#11 Post by David Carter »

AntonZ wrote:I hadn't thought of that yet, good point. You would have to hook up a laptop to the XTi in order to do that.
I don't think so. I had everything connected to my PC while I was testing it, and even through the Band Manager software, I couldn't find a way to do it. It makes sense if you think about it because what you are adjusting when you turn the knobs is input gain, and there is only one input signal which is being split after it enters the amp.

EDIT: I've slept a few times since I sold my XTi amps, so I can't guarantee that this is not possible via the software, but I don't remember finding a way to do it.
Dave

Built:
- Omni 10 (S2010 + piezo array)
- 2 x DR250 (DL II 2510 + melded array)
- 2 x Titan 39 (BP102 - 14"W)
- 2 x Titan 39 (3012LF - 20"W)
- 4 x DR200 (Delta Pro 8B + melded array)

User avatar
Drey Chennells
Posts: 1377
Joined: Sun May 17, 2009 10:12 pm
Location: Central FL ~Authorized Builder
Contact:

Re: drpa+ or dcx/deq2496?

#12 Post by Drey Chennells »

pa+ has 10ms delay so if thats enough for you.. a great piece
"Things happen, but music stays in your blood forever~." bf

InfraCoustik
Consulting/Design/Fabrication
Authorized BF Builder
http://www.infracoustik.com/
info@infracoustik.com

User avatar
AntonZ
Posts: 2687
Joined: Sun May 14, 2006 6:00 am
Location: NL

Re: drpa+ or dcx/deq2496?

#13 Post by AntonZ »

David Carter wrote:
AntonZ wrote:I hadn't thought of that yet, good point. You would have to hook up a laptop to the XTi in order to do that.
I don't think so. I had everything connected to my PC while I was testing it, and even through the Band Manager software, I couldn't find a way to do it. It makes sense if you think about it because what you are adjusting when you turn the knobs is input gain, and there is only one input signal which is being split after it enters the amp.

EDIT: I've slept a few times since I sold my XTi amps, so I can't guarantee that this is not possible via the software, but I don't remember finding a way to do it.
The input gain controls are pre DSP, so they will not individually control LP and HP output indeed. I have never used Band Manager with my XTi, in System Architect it would be possible. If you put the amp in crossover mode, there are controls in the Crossover Settings window for "Bandpass Gain" on both the HP and the LP channel.

SeisTres
Posts: 2688
Joined: Fri Apr 24, 2009 3:53 am
Location: Dallas, tx

Re: drpa+ or dcx/deq2496?

#14 Post by SeisTres »

AntonZ wrote: The input gain controls are pre DSP, so they will not individually control LP and HP output indeed. I have never used Band Manager with my XTi, in System Architect it would be possible. If you put the amp in crossover mode, there are controls in the Crossover Settings window for "Bandpass Gain" on both the HP and the LP channel.
WTF??? well...that takes care of that future plan to get the xti. What i'm understanding is that not even the attenuators on the amp will let you control each individual channel after is processed, is this correct? otherwise would it not be as simple to turn one of the knobs to max and the other half way for tops?

If indeed you cannot even control the processed output even with the attenuators, then I'll take my two channel behringer powered mixer and my drpa any day over the xti.
Built:6 t39, t18, 4 Jack10, 2 autotuba, 2 SLA,2 wedge, 2 TT, 2 Tritrix, curved sla, 2 otop212, 2 SLA pros, Ported 8" sub, 2 ported 210, dual ported 8" sub

Gregory East
Posts: 3495
Joined: Sat May 13, 2006 9:56 pm

Re: drpa+ or dcx/deq2496?

#15 Post by Gregory East »

Read what he posted again. Contol bandpass gains via the crossover menu. Still a pita compared to tweeking an attenuator.

Post Reply