High pass quality to mains uisng Velodyne DD subs


Hi,

For those who have incorporated one of the DD series subs into your two-channel system, did you use the line level high pass filter from the sub to your main speakers amp?

I have two sets of outputs from my preamp, so I could run one set to the sub and one set full range to my mains. I was just wondering if folks had experienced much degradation of signal going line level from preamp to DD to mains amp.

Theoretically, I like the idea of the high pass filter.

Getting ready to set up my dd18.

Regards,

Jerry
jerrym303

Showing 5 responses by jerrym303

Looks like no one has A/B'd this. Within the next few weeks, I'll be able to give a try.

If I find that the higpass is benefical, but a little noisy, I may go for an outboard crossover like the the vandersteen m5-hp. The savings on long rcas's of even moderate cost would about pay for it.

Thanks for the responses.

Jerry
Rwwear,

I'm not following your last comment. The DD15 comes with the SMS built in. Are you not using the built-in low pass and equalization?
Thanks for note goatwuss.

I'm going to try it out both ways when I get the chance and report on it.

Crossing over my front DLS 3-ways in my car a little higher made a huge difference there.
I tried it out both ways last night with my (very) old Vandersteens and the high pass had obvious benefits in both cleaning up the midrange integrating the sub.

I also found that my plans to improve room acoustics are badly needed because quite bit of equalization was needed to flatten out the LF.

I had some noise/degradation, but I was using extremely crappy interconnects (hardware store quality) because that is all I have in long lengths.

The benefits look big enough that if I end up with speakers that like the HP this much, I will probably subtitute a high quality HP like the Vandersteen 5m-hp for the Velodyne HP. Then, I can use my shorter current higher-quality cables (with one addition) also.

I guess that what I am saying is that I am not going to throw in the towel if it turns out that the velodyne HP is not up top snuff. Another advantage of skipping the Velo HP is that I can then attenuate the input to the Velo - I'm running at volume 3-5 out of 100 now with 2-channel.

All of this won't matter if I end up with the Merlins since they have a built-in HP at 28 Hz as part of the Super BAM and others have had good lucking integrating them full range as they stand.

Please keep adding comments. I consider this to be an important discussion since we probably can't buy a floorstander that is clean to 15 Hz for less than about $20,000, if that. Personally, I also value the ability to use the sub for HT with a totally different set-up.

Also, I could not identify the source of the bass whatsoever with just one sub. I was using a very steep crossover, though. I am perfectly happy to add a second if it can be demonstrated that I am missing something.