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DBX DriveRack PX Powered Speaker Optimizer

Dolphin id:37059 Product SKU:DBX0074

Call for availability: 0151 448 2080

The DBX DriveRack PX Powered Speaker Optimizer has everything you need to get the most out of your stereo powered speaker system. It even includes stereo or mono subwoofer support. With the included dbx M2 measurement mic, Auto-EQ corrects for audible deficiencies in the room environment.

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Powered speakers are a beautiful thing. Everything you need bundled into one simple, tidy, portable package. Just grab ‘em and go, right? Well, you may think your powered speaker system is complete, but you’re missing half the picture. DriveRack PX is the other half. In another DBX industry first, we’ve created a processor specifically tailored for powered speakers. Utilizing our highly-acclaimed DriveRack technology, the PX picks up where your powered speakers leave off.

The DriveRack PX Powered Speaker Optimizer has everything you need to get the most out of your stereo powered speaker system. It even includes stereo or mono subwoofer support. With the included DBX M2 measurement mic, Auto-EQ corrects for audible deficiencies in the room environment.

Our patented Advanced Feedback Suppression (AFS) kills nasty feedback, allowing problem-free operation at higher sound levels, while our patented Subharmonic Synthesizer extends bass response for enhanced bottom end. With all that, you also get classic dbx compression and the protection offered by our graceful PeakStopPlus limiting. Your ears, your audience, and your powered speakers will forever thank you.

In spite of all that sophistication, rest assured we won’t overcomplicate the simplicity of your rig. Our exclusive Setup, Auto-EQ, and AFS Wizards, and out-of-the-box support for a host of JBL and other popular powered speakers, make setup a snap. Louder, cleaner, better sound than you thought possible from your powered speakers.



  • Stereo Feedback Elimination with 12 feedback notch filters
  • Dual 28-band Graphic EQ
  • Classic DBX Compressor
  • 120A Subharmonic Synthesizer
  • Stereo Multi-band Parametric EQ
  • Stereo PeakStopPlus Limiters
  • Pink Noise Generator
  • Auto-EQ with 28-Band RTA
  • JBL and other popular powered speakers included in Setup Wizard
  • dbx M2 Measurement Mic and zippered pouch included
  • Front panel RTA-Mic XLR input with phantom power
  • 25 User Programs / 25 Factory Programs
  • 2 Channel XLR Input
  • 2 Channel XLR Output
  • 2 Channel XLR Sub Output
  • 24-Bit ADC/24-Bit DAC, >110 dB Dynamic Range
  • DBX Type IV Conversion System
  • Full Graphic LCD Display

The following powered speakers are currently supported by the Driverack PX;

Main Speakers

  • JBL EON 10G2
  • JBL EON 15G2
  • JBL PRX515
  • dB Technologies Opera Live 202
  • dB Technologies Opera Live 205
  • dB Technologies Opera Live 402
  • dB Technologies Opera Live 405
  • Mackie SRM350
  • Mackie SRM450
  • Peavey PR15P
  • QSC HPR 122i
  • QSC HPR 153i
  • RCF ART 310-A
  • RCF ART 312-A
  • RCF ART 315-A
  • RCF ART 325-A
  • Sampson dB500A
  • Yamaha MSR400
  • Yorkville NX55P


  • JBL JRX118SP
  • JBL EON Sub G2
  • JBL PRX518S
  • dB Technologies Opera SUB12
  • Mackie SWA1501
  • Yorkville NX720S

Sub/Satellite Systems

  • HK Audio Lucas Impact
  • HK Audio Lucas Smart

Reviewed in Music Planet:

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£ 366.00 Web price, inc VAT

Ex Vat:
£305.00, VAT at 20.00%

£ 505.25
x £ payments + £ deposit
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Call for availability: 0844 815 0888


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DBX DriveRack PX Powered Speaker Optimizer Reviews


dbx driverack px

Have finally put new bit of kit through its paces properly this evening. In a deliberately selected environment (30% absorbent) I subjected the dbx to 3 main vocal mics (identical levels for 3 part harmony) and two acoustic guitars through a HK Lucas pa system.

Overall, a positive experience...setting to pink noise is an absolutely sound idea and with no members of the public or bar staff to worry about it is all good. Whether this procedure will be tolerated at a gig is to be seen...

The thing does exactly what it says on the box...limits, eqs and deals quite well with microphonic feedback (acoustic guitar feedback needs more investigation before conclusion).

There are for me, however, areas of uncertainty which will initiate a learning process:

1. Preselecting a frequency response and criticality of notch filter is guesswork (in the absence of experimentation).
2. The ratio of fixed to live notches is also a matter of experimentation.

But...you know what? I really LIKE it!!


dbx Driverack PX

This product does pretty much what it says on the tin. It\'s a doddle to set up - on-screen instructions are clear and the layout is logical and easy to grasp. I\'ve used mine with a couple of different systems and I felt that sound quality had been improved significantly as compared to before I had this unit in the signal chain. Pinking the room is obviously necessary - how else could you accurately EQ as per room acoustics? - but if that\'s impossible, you could always just play music through it and adjust the EQ by ear, fiddly though that would be.

Personally, I keep the mixer EQ flat and use the Driverack exclusively for system EQ (I take a recording feed off the mixer & don\'t want to have to compensate for that later).

Criticisms - feedback suppressor isn\'t perfect (although it\'s very good), and Dolphin shipped this unit with a European plug (isn\'t that illegal here?).

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DBX Driverack

I was a little sceptical with regards to how much difference this unit would make to my system but I need not have been concerned.
It matches up with my Eon15\'s and G2Sub\'s perfectly creating a much sweeter balanced sound than I was previously accustomed to.
The speaker selection presets perform well so if \"pinking\" the room is an issue you can normally opt for one of these, although to get the best from the Driverack you would want to do this.
All in all I would have to say this is a good product for the money,if you\'ve spent a few quid on your active speakers then why not get the best performance from them possible.


DBX Driverack PX

I purchased this product a couple of weeks ago and have set it up 3 times, once for a gig.
It has several good points.
1. Easy to understand and inialize.
2. Has everything you need in the box.
3. Does what it\'s supposed to.

It also has a number of drawbacks:

1. You have to \'Pink\' the room with noise at gig volume - this is not practical in a busy Pub; it doesn\'t go down well with either the management or the punters.

2. You have to \' pink\' for system balance and EQ - See above!

3. You may have to move the microphone to get the EQ to work properly repeating the above - thus annoying the customers again!

4. The insturctions assume you know what you want and what you are doing; there is no help or suggestion concerning how you want the driverack to operate.
Is it best to go for a flat response and then use the mixer to put in the shape you want? I don\'t know and the instrucions are no help.

5. The AFS does work but it\'s works better if you set it up as described and then back off the mixer master faders a little.

I know this sounds like a lot of criticism, but it isn\'t meant to be; you just need to be aware of what your getting to get the best out of it. Would I recommend the Driverack PX - Yes.

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