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Speaker Asylum General speaker questions for audio and home theater. |
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Speaker Asylum General speaker questions for audio and home theater. |
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In Reply to: What's your crossover frequency/slope to the Neo 3s? posted by Brian H P on July 29, 2015 at 10:42:39:
...I've never tried to measure it. I have no idea if the MR driver could sound good with a low-pass filter as high as 4K. As I wrote earlier (below), my speaker-design skills might stretch to about 0.5 on the 10 scale, so probably that redesign is beyond my lack-of-skill level.
The original filters were interesting--bass-to-MR was 2nd-order LP and 1st-order HP, while MR-to-treble was 1st-order LP and 3rd-order HP.
I replaced the first pair with a 2nd-order filter in the plateamps and 1st-order SoniCap Platinum cap on the amp's input. Both of these filters I moved down, maybe a couple octaves in the plateamps and about an octave in the MR LP. There's so much upper-bass/lower-MR energy from the bass drivers, I'm tempted to say that the plateamp's slope is closer to first order, and I suppose that's why I'm using the plateamp's crossover control at its lowest setting of 40Hz. So set and including the third-octave eqing, the bass sounds excellent--VERY well integrated with the I-believe-excellent-sounding MR drivers playing acoustic bass*, orchestral cellos, etc.
* The Knud Jorgensen Jazz Trio, Opus 3 CD #8401; recorded (a little too 'hot'; the piano sounds a bit hard and clangy often) with a single Blumlein stereo mike.
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Follow Ups
- I believe the original MR/tweeter filter point is 2.7K, but... - jeffreybehr 07/29/1516:01:20 07/29/15 (1)
- The Neo3 is a "true" 4 Ohm tweeter - Brian H P 17:01:53 07/29/15 (0)
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