- 9 posts total
- 9 posts total
@dbphd , subs are a very complicated, tricky issue. That sense of openness you like is being caused by the slight echo in the upper bass lower midrange occurring between your subs and the main speakers. With the subs set at 80 Hz there is a small amount that leaks through. A cross over is not a cliff, it is a slope. Many people like this. Adding high pass filters will always increase headroom and lower distortion more or less depending on the design of the main speakers. It will also decrease the amount of overlap and get rid of that "echo." The higher you crossover the the greater the increase in headroom and the lower the distortion. I cross over at 125 Hz but my ESLs are "one way" and so benefit most from this. Whereas, in a two or three way speaker only the woofer's range is going to benefit from lower distortion. A high pass filter should always improve the sound.
db, mijostyn's terrific description may be adjusted out after another Auto EQ. Then by manually adjusting the Low Pass Xover Slope and Contour Frequency.
Velodyne's later Plus Optimization has a simple visual and audible drag and drop Q adjustment for individual bandwidth parametric filter frequency and level.
When used in conjunction with its discrete multi-band gain settings allow for a much higher crossover beginning with tone that closely matches the mains presentation from the crossover region on.
This replaces the hard crossover point used by most other equalization programs or basic settings.
You might give a thought to setting some of your presets with differing crossover and slope settings to help narrow down an optimum while your at the listening position.
Once I tailored my crossover region it's saved to all the presets while the equalization after the region varies. #6 is a polarity reversal.
Thanks, mijostyn & m-db, for the enlightening posts. Last night I played several Blu-rays, with balanced analog from the Ayre DX-5 DSD to the KX-5 Twenty preamp. I thought the sound quality superb, so I’m unlikely to mess with the setup in the near future.
Charles Hansen contended that nothing should be inserted between the Ayre preamp and amp, because of their fully-balanced zero-feedback design. Nevertheless I tired an elaborate Bryston high-pass and a balanced passive custom. I ended up conceding his point.