High pass quality to mains uisng Velodyne DD subs

Eldartford, I guess your points make sense. By the way, the Velodyne high pass is also 6dB/octave.

Rwwear, I know what you say, but I would use the SMS-1 with my current REL and maybe an ACI Force later.

Hello Folks,

I own a DD15 and Dynaudio S1.4 speakers, and I have tried using the sub both ways.

Using the crossover and high passing the mains is the much better real-world choice. Every major sonic attribute is imrproved when you do this, all the way through to the midrange tone and transparency.

When you use the high pass, your midrange driver is freed from having to try and reproduce the bass along with the midrange in the same driver. The amplifier is also freed from the burden of dealing with the bass frequencies.

These advantages outweigh any theoretical "more circuitry in the signal path" problems by orders of magnitude.

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.