Have you tried decreasing this area with DSP/EQ? (from post 182)
What you are describing sounds like a typical response to a midrange area that's a little too hot. I would try to get to the bottom of it with EQ before abandoning the driver you have. I had similar issues with the Scan-speak H2606/9200.
Something like this often sounds good initially because it gives an impression of extra detail. But on the wrong song it gives a harsh edge to the sound. For me that area is fussy when it comes to voicing/tuning/whatever you want to call it. What your ear latches onto as a reference often depends on what the frequency response around the area is like and the particular song. Your midrange (400 Hz -1k) seems a little elevated, which may make the upper midrange sound more in balance when it's also elevated. The depression around 200-300 Hz in-room may also be affecting this. Slightly different speaker locations may help that, or you could go after the bass balance with DSP as well (cutting 80-150 Hz). Often fixing one thing leads to adjustments in other areas.
Sometimes listening to pink noise can help highlight problems like this, especially if you have a known nicely balanced speaker or set of headphones to instantly switch back and forth to.
I tried moving the speakers a little (not much room to do that), I also tried EQ:ing them more flat from the listening position, but that also sounded wrong.
They measure nice nearfield, but I can still hear the same thing when listening closer to the speakers.. Since I had similar issues with the DXT tweeter, I started thinking I should try without a waveguide.
They measure nice nearfield, but I can still hear the same thing when listening closer to the speakers.. Since I had similar issues with the DXT tweeter, I started thinking I should try without a waveguide.
Room response "hotness" around 3kHz is typical consequenze of tweeter's wider radiation pattern. 2-3dB notch in on-axis at 1-2m should tame it remarkably. Ears are very sensitive around there, even 1 dB can be heard. 2-4 or 3-6 kHz means one octave! Many instruments have lots of harmonic distortion there (their sound signature)
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I would also continue with some applied EQ. Try to get the voicing right - it always needs some listening to the finished speaker and often some fine adjustments.
The DXT has a way to small wavegudie and pretty sure also pronaunces this area in the room, esp when used with a bigger midrange.
T34A would be a tweeter which can cope with an 8" midrange and has very wide radiation.
The DXT has a way to small wavegudie and pretty sure also pronaunces this area in the room, esp when used with a bigger midrange.
T34A would be a tweeter which can cope with an 8" midrange and has very wide radiation.
Hi,
I have had similar kind of problem at about 2.5-3 kHz which was very close to cross over frequency. Closer examination revealed that while on-axis response was more or less flat, at some angles off-axis(top/side) there were peak about 2-3 dB in magnitude. Modeling software did not show this problem because it did not take into account combined directions, like both at top & left/right. So cross over was changed a little bit and now there is a sligt dip on axis @ 2.7 kHz, no peak off axis and the sound is pleasant to listen.
Regards
I have had similar kind of problem at about 2.5-3 kHz which was very close to cross over frequency. Closer examination revealed that while on-axis response was more or less flat, at some angles off-axis(top/side) there were peak about 2-3 dB in magnitude. Modeling software did not show this problem because it did not take into account combined directions, like both at top & left/right. So cross over was changed a little bit and now there is a sligt dip on axis @ 2.7 kHz, no peak off axis and the sound is pleasant to listen.
Regards
I will try again..
The DXT was another project with a smaller mid, 5,25" if I remember correctly, on a large curved baffle, maybe it was in the background on some pics here before, not sure. FR looked nice off axis too, but still did not like it.
I don't like the sound of DXT driver as it is. It's a pretty old Seas tweeter, I always found them intrusive. Listened to a few of them and owned one speaker with these tweeters.
But I really like the sound of ring radiators, just don't like the beaming >10kHz. A waveguide can balance this a little, so that should not be the problem here.