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Discussion Starter · #1 · (Edited)
Any thoughts on this loudspeaker management (active XO) for a new 3way front speaker build?

DBX DriveRack 260 ($799)
http://dbxpro.com/en-US/products/driverack-260

Front:


Back:





DBX DriveRack VENU360 ($799)
Available on 1 May 2015
http://dbxpro.com/en-US/products/driverack-venu360

Front:


Control:







DBX DriveRack PA+ ($299)
http://dbxpro.com/en-US/products/driverack-pa

Front:


Back:






Mackie SP260 ($499)
http://www.mackie.com/products/sp260/

Front:



Back:





Behringer Ultra-Drive Pro DCX2496 ($299)
http://www.behringer.com/EN/Products/DCX2496.aspx


 

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lots of folks running the dcx2496 with good results. no fir filters, but I'm not sure what does at anything close to the price. the software is a little dated, but it should do what you need.


minidsp is another option as is xilica.
 

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For the money its hard to beat the Behringer.

For a little more that new dbx looks interesting, more information is needed though. You can of course get 2x Behringers for less than the price of that dbx, the spare could be pocketed or put towards a SI18 or something.

Personally I don't see any need to spend more on the DSP than the Behringer, unless your talking about something like Lake's or XTA's.

Also note that PC based processing has come a long way.

Just my humble opinion.
 

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It might be easier/better to get amps with DSP built in. I'm using the crown DSi amps and the software is great, lots of options- the noise floor is low, and I can control all 4 of my amps on a single screen via PC. They even make a wireless adapter (or use USB).

You already have amps ?
 

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Discussion Starter · #7 ·
It might be easier/better to get amps with DSP built in. I'm using the crown DSi amps and the software is great, lots of options- the noise floor is low, and I can control all 4 of my amps on a single screen via PC. They even make a wireless adapter (or use USB).

You already have amps ?
For a three way design may want to look at the QSC PLD line of amps, 1 amp per speaker with a spare channel.
Thank you, this sounds really interesting. I'm looking into this: (3-way)




"Figure 2.3 shows the essential parts of an active 2-way system. This may be expanded to 3-way, and used with 3-way speakers, or 2-way speakers and stereo subs. Four-way systems - or more - are easily achieved. In contrast to a passive crossover (whether fully optimised or not), each driver has its own amplifier, and each amp has to reproduce less power, and over a narrower frequency range. This allows each amp to have an easier time with a less complex load, potentially reducing amplifier heating and overload - even at high listening levels."
 

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Any thoughts on this loudspeaker management (active XO) for a new 3way front speaker build?

DBX DriveRack 260 ($799)
http://dbxpro.com/en-US/products/driverack-260

Front:


Back:





DBX DriveRack VENU360 ($799)
Available on 1 May 2015
http://dbxpro.com/en-US/products/driverack-venu360

Front:


Control:







DBX DriveRack PA+ ($299)
http://dbxpro.com/en-US/products/driverack-pa



Front:


Back:






Mackie SP260 ($499)
http://www.mackie.com/products/sp260/

Front:



Back:





Behringer Ultra-Drive Pro DCX2496 ($299)
http://www.behringer.com/EN/Products/DCX2496.aspx




I'd strongly suggest you look at the dbx PA2. Not sure why it wasn't on your list.

James
 

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one really needs to get into the weeds with these things in order to choose the appropriate device.


pa+ for example has only 2 parametic eq on some of the outputs and non on the inputs (so if you use one of them as a shelf that only leaves one bell curve). that may or may not be enough. also, delay is limited to 10ms, so if using the pa+ (and not in combination with an avr), integrating horns properly could be nearly impossible. such things may or may not matter though depending on your application.


 

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Discussion Starter · #11 · (Edited)
Dbx Pa2 ($399)
It looks like we have a winner here:

All New Setup Wizard
Streamlined AutoEQ™
All New AFS™ (Advanced Feedback Suppression)
Mobile Control (Android®, iOS®, Mac®, Windows®)
dbx Compression
Graphic EQ
8-Band Parametric EQ (adjusted when using the AutoEQ) Input
Subharmonic Synthesis
Crossover (supports full range, 2-way, and 3-way systems)
8-Band Parametric EQs (used for speaker tunings) Output
dbx Limiting
Driver Alignment Delays
 

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the block diagram shows that the pa2 has parametric eq on both the input side (which gets adjusted by the auto eq, but then can be manually adjusted) as well as each output channel and many more than the pa+.


with 3 way active mains, you'd only get two channels on the behringer anyway, so not really much more money.


@mastermaybe
any downsides to the pa2 that you are aware of?
 

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i was looking for a digital xover to expand my deqx to work as a 4 way and would prefer something that actually has a digital input .
there is a new reckhorn unit which is geared more towards the the hifi market then the pro market.

https://www.reckhorn.net/pages/amplifier/dsp-6-digital-speaker-crossover.php

hard to tell how it would compare to a dbx of behringer.

Please note:
Prior to programing the sound processor the DSP-6 must be connected to the PC via the supplied USB cable. Continue by switching on the Digital Crossover. Turning the control 2 turns to the left equates to low or to OFF.
Set SELECT to the desired program source. The programing of connected components including auditioning the speakers can be achieved immediately after Write to DSP. After completion of the set-up, first switch off the Digital Crossover, ending the program; and last, disconnect the USB cable. The various set-up functions can be viewed on the DSP-6 videos AC power
110V/50 Hz - 230V/60 Hz
Function indicator flashes green
DSP being selected
Function indicator steady green
units is set-up
VOLUME
contact free digital volume control, free spinning left or right
SELECT
selects 4 inputs
ANALOG 1 sensitivity 0.5 Volt / 30 kohms ANALOG 2 sensitivity 1 Volt / 30 kohm Input Voltage
0 - 2 Volt
DIGITAL
Optical and Coaxial/RCA
DSP function and data:

32-bit soundprocessor
Cirrus Logic, 192 kHz SPDIF Tx
Sampling Rate
48 kHz
Dynamic range
> 95 dB
Crosstalk
> 80 dB
Analog-Digital & Digital-Analog converter
Cirrus Logic, 24-bit
Outputs
3 x stereo RCA = Group A, B, C
HPF - high pass filter
10-22.000 Hz, 12 / 24 / 36 dB
LPF - low pass filter
10-22.000 Hz, 12 / 24 / 36 dB
Time Delay
0,001 - 20 milliseconds / 0,34 mm - 6,8 meter,
programming in steps of 0.001 ms
5 Equalizer
IIR Filter (infinite impulse response filter) 10 - 22.000 Hz
Equalizer bandwith
Q 0,01 - 31
Frequency range
10 - 22.000 Hz / 3 dB
Total THD
0,05%
Time delay without filter
4,6 milliseconds
Amplifier group C:

power
2 x 20 Watt / 4 Ohm RMS
Frequency range
20 - 20.000 Hz / 3dB
Total THD
0,5%

Damping factor
50
Channel separation
55 dB
Fremdspannungabstand
60 dB / 1 Watt
Signal to noise ratio
75 dB / 20 Watt
Channel equality
+ / - 0,5 dB
Automatic relay safety
Short circuit, overload, overheat
Width x height x depth
362 x 67 x 235 mm
Weight
2,4 kg
 

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The DCX is the best price/performance buy for active mains or advanced subwoofer (multiple) control, imho.

That dbx PA2 looks like the real deal though! I'd like to try that in the future.

Everything else is too pricey for any benefit.

Built in DSP amps are not a good idea for active mains unless you get 4ch or more ones but those are soooo expensive. Plus if the amp goes out so does the DSP. When outboard you can swap out the amp and be back in the game.
 
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