High pass quality to mains uisng Velodyne DD subs

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 both ways. I was running Running two DD 10's. It was a trade off in my system. Using the high pass in the subs made the speaker and sub intergration perfect. But it made the mids and highs sound electronic.

And by not using the high pass, and just using the room correction, I could never get the seamless intergration with the main speakers. I ended up selling the two subs and bought a better full range speaker. Now their is no trade off.

I really think it depends on the main speakers you're using and what your aim is in using crossovers.

In my home theater using the processor's crossover does wonders. The active network seamlessly blends my NHT satellites and sub creating a very coherent movie experience.

However, in my 2 channel rig I've found using any kind of crossover destroys the beautiful midrange of my ProAcs. Upper and to some extent midbass contribute to the way we perceive overall midrange, and the midrange of the ProAcs suffers greatly even if I set the crossover to 35Hz. The associated equipment I've chosen enhances that midrange and any attempt to place a filter before the ProAcs recesses the midrange and compresses the sound.

However, if a more balanced, neutral sound is your goal, use of a high pass filter could depending on the speaker and intent be very beneficial.

Like Dlanselm, after trying to integrate monitors [in my case ProAcs] with a sub I have since gone to using full range ProAcs without a sub.

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.

Jerrym303,

With a second sub, the sound stage had much more dimensionality . It was night and day better in my system.