Bo, I'm interested in your testing with REL and Velodyne.
I had a chance to spend a few months with an expensive REL Studio III, JL Audio 113, and a Velodyne DD-18. The only measuring available to me was the Velodyne's built in Room Optimization system (using the REL line level input only).
I've heard you refer to this issue you have with what you call speed and wondering how you measured it? With the Velodyne system one is able to adjust arrive time and phase which can have a dramatic affect on what I perceive as speed.
I have found phase can change from track to track within an album recording. Surprisingly, there is little to no mention of this in subwoofer reviews I've read.
It's usually noticeable with the Bass drum being in or out of phase. With the Velodyne a simple push of a button on the remote you can hear the difference on the fly.
Or are you refereeing to the general characteristic of enclosure design such as the difference between sealed or vented, small or large driver, etc.?
I had a chance to spend a few months with an expensive REL Studio III, JL Audio 113, and a Velodyne DD-18. The only measuring available to me was the Velodyne's built in Room Optimization system (using the REL line level input only).
I've heard you refer to this issue you have with what you call speed and wondering how you measured it? With the Velodyne system one is able to adjust arrive time and phase which can have a dramatic affect on what I perceive as speed.
I have found phase can change from track to track within an album recording. Surprisingly, there is little to no mention of this in subwoofer reviews I've read.
It's usually noticeable with the Bass drum being in or out of phase. With the Velodyne a simple push of a button on the remote you can hear the difference on the fly.
Or are you refereeing to the general characteristic of enclosure design such as the difference between sealed or vented, small or large driver, etc.?