2. speakers
  3. 1346799240

Software Flaw In New Velodyne Subs?

.
I was trolling the Velodyne site and came across the following review:

Velodyne really missed the boat on the software, arbitrarily limiting the low pass filter to 40hz with the DD-15+. Those of us with full-range speakers that desire a bit of reinforcement in the deep bass are forced to compromise by this artificial limitation.

The prior DD-15's software DOES allow the low-pass filter to be user-set down to 15hz. It a shame that in order to get increased functionality, I HAVE TO GO BACKWARDS AND USE MY DD-15 BECAUSE I CAN'T GET VELODYNE TO PUT THE SAME FUNCTIONALITY INTO THE DD-15+. A SUPPOSEDLY MUCH MORE ADVANCED SUB.

I have owned Velodyne subs for over 20 years now and customer service has been great, UNTIL NOW. I AM NOW BEING TOLD THAT IN ORDER TO RESTORE THE FUNCTIONALITY THAT THEIR PRIOR PRODUCT HAD TO THE NEW (dd-15+) SUB THAT I ALSO OWN, IT WOULD TAKE "CUSTOM SOFTWARE", WHICH THEY DON'T DO. THEY HAVE KNOWN ABOUT THIS PROBLEM FOR OVER A YEAR NOW AND HAVE CHOSEN TO IGNORE IT.

Frequency...14.6 - 120 Hz
High Pass Crossover.....80 or 100 Hz at 6 dB/octave
Low Pass Crossover......40 Hz to 199 Hz (variable in 1
Hz increments) selectable slope
Default: 80 Hz @ 24 dB/Octave

According to the specs above, the sub goes down to 14 Hz. Does the subs' software limit it to go no lower than 40 Hz?

Can someone explain what this means? How would this be a limitation to full range speakers when the subs are used for 2 channel audio?
.
mitch4t

Showing 5 responses by fplanner2010

fplanner2010
283 posts
 
You guys are totally missing the point. The flexibility of high-end Full-range speakers that go down to 17hz is totally useless if in order to use the sub, you have to cross it at 40hz. What if I want my speakers to take it to 30 hz and then let the sub kick in? Can no longer do that with this software. I would much rather listen to the higher-quality of my main speakers than the sub in 2-channel; movies are a different story.

I would never want to set the sub's low-cross at 15hz - that's totally ridiculous. But 25-35hz would not be out of the question, depending upon the music. I am also aware of the many ways the software can balance the room, etc. That's not, and never was my point. The limit of 40hz low pass was my point. I have since figured out a work-around with the help of a Velo senior VP. End of angst. Life is good. :-)
fplanner2010
283 posts
 
Irv-
You DID call me silly, so I responded. Its not that 25-35hz low pass is necessarily a good thing. As you point out, it is totally system, room, music and preference dependent. When I had this flexibility, I used it. With my newer and improved DD+, I am unable to. That didn't seem like "progress" to me, although from talking to the higher-ups I now understand why they HAD to do this. turns out it wasn't as arbitrary as it originally seemed.
fplanner2010
283 posts
 
Yes I have, as have others.
fplanner2010
283 posts
 
Marty-
So are other people when they come into my room, including Albert VS several years ago. The room is 19x20, has sloping ceilings left to right from 13' down to 8', and many openings on 1 side, so its impossible to pressurize properly.

I have Audyssey'd (new word?) the room, wrote down the numbers and am close to where I want to be. There are a number of room limitations, as it is my living room, complete with big dogs, etc. The results, all-in-all, are pretty good. The numbers are really pretty meaningless in my situation, since the open side leads into the rest of the house. So, I do the best I can and adjust the crossover to where it works the best for my room.

I trust my ears - I've had them a long time... :-) thanks for your input.
fplanner2010
283 posts
 
In the immortal words of Daniel von Recklinghausen, if it measures good and sounds bad, it is bad.
If it measures bad and sounds good, you've measured the wrong things. Just a thought... :-)
More to discover