Originally Posted by M-dB
Thanks for the suggestion. We use our Velodyne's in our main two channel (music only) system. We compared an F113 v1 and found it to be a very potent high quality subwoofer for its size. The ARO and even the increased multi-band v2 DARO are limited in their manual adjustability. A quick study of the JL Audio $3000. CR-1 active outboard crossover doesn't cover what the Velodyne Plus offers.
In the Plus they revised its Digital Drive System Settings and developed the addition of the Frequency Response And Parameters Screen which includes Filter Frequency and Level, Summation and Individual Parametric Filter EQs, and Parametric Q Filter which are all click and drag software adjustments.
After the Auto EQ performs an initial adjustment of these parameters through trial and error these parameters can be manually fine tuned from the listening position. This type of multi-band gain and equalization allows the user to tailor the subs output and Q at higher crossover point to attain a smoother transition that more closely matches the main speakers sonic presentation in the crossover region and on down. Kind of difficult to explain the sound of the results until you actually hear the difference. We fed the F113 from the DD Plus and reached practically the same crossover transition.
Anthem / Paradigm's MartinLogan sub has some new application based DSP combined with a proprietary microphone that may be promising. In the mean time I hope I can get this plate amp repaired.
I agree with your point with regards to manual adjustability of the JL Audio ARO/DARO. However, my practical experience is nearly a polar opposite.
My two channel system is built around Apogee full range ribbon speakers with the now discontinued F110. The integration/crossover/voicing between the two is audibly invisible with the F110 placed at a right angle to the Apogee's and using only the F110's ARO. Big sound stage with extremely well defined imagining. I was never able to achieve this with Velodyne's DD or SMS products.
Our dedicated theater uses F113's and we fine tune with Dirac. The F113's tend to play smother and with a much wider dynamic range than the DD's.
We use two Velodyne Mini Vee's in our backyard theater and the great outdoors makes the use of RC a moot point.
Don't get me wrong. I very much like Velodyne's products and I wish that they had continued development of new product. Velodyne was always in the forefront as an industry leader with regards to technology, design, and generally quality. However, the move to switching power supply, class D amplifiers as used and supplied in the DD's, SPL's, HGS, etc. series of product leaves something of a bad taste for many. These amplifiers are not designed to be repaired but exchanged like and kind; the economics of a disposable society. And with Velodyne sheepishly withdrawing from the market making exchange a near impossibility, it's quite fortunate that businesses like EBC are around to do the heavy lifting.
But, I think the industry is at a point where quite powerful DSP SiP Blocks are available at much lower price points and are being incorporated in AVR's and pre-pro's at very affordable prices. More powerful RC algorithms from companies like Dirac and improvements to existing RC algorithms like Anthem's ARC Genesis will make RC built into a subwoofer box much less desirable or even necessary. You see this reflected in product from JL Audio and others where a driver with a powerful motor structure is offered with less RC capability at a lower price point.