I hope the title of this thread is a bit descriptive. :s
I've built 5 designs so far - the Natalies, a slim column with Focal woofers and a Neo3 tweeter, a tower with Tang Band (aluminum) woofers and the Neo3 tweeter,a Peerless small bookshelf, and a bookshelf with Tang Band (titanium) woofers and the RS-28 tweeter.
Although I think I'm getting better at the measuring / designing a crossover part, one problem still shows up all the time, everytime - the speakers sound pretty dull.
It doesn't make much sense. My measurements (always on-axis) seem to be OK. When I test the finished speakers, the on-axis response is mostly flat. But the speakers sound dull when compared to my Energy C-3's, or my Monitor Audio Silver RS-8 speakers.
I don't fully understand what is it that I'm doing wrong. The midrange is really great, and the bass response is mostly nice, but the highs seem to be recessed and dull.
Anyway, I tried measuring my Energy speakers, and I was surprised to see a rising frequency response, starting at around 2 Khz and ending around 5-6 dB's up at 20 KHz.
Now, here's what I've been thinking... I suppose this is done in order to deliver a flatter frequency response at 30° or 45° off-axis. This is a mere speculation on my part, but that's the only thing I can think about. I don't know what's the correct way of designing a speaker.... flat on-axis, or flat off-axis?
As it is, I "cloned" the Energy response curve on my latest project (the Tang Band titaniums) and the speakers now similar to the Energies. But I don't know what the right thing to do is... or whether my measurement protocol is wrong.
Any ideas would be very appreciated!
Javier.
I've built 5 designs so far - the Natalies, a slim column with Focal woofers and a Neo3 tweeter, a tower with Tang Band (aluminum) woofers and the Neo3 tweeter,a Peerless small bookshelf, and a bookshelf with Tang Band (titanium) woofers and the RS-28 tweeter.
Although I think I'm getting better at the measuring / designing a crossover part, one problem still shows up all the time, everytime - the speakers sound pretty dull.
It doesn't make much sense. My measurements (always on-axis) seem to be OK. When I test the finished speakers, the on-axis response is mostly flat. But the speakers sound dull when compared to my Energy C-3's, or my Monitor Audio Silver RS-8 speakers.
I don't fully understand what is it that I'm doing wrong. The midrange is really great, and the bass response is mostly nice, but the highs seem to be recessed and dull.
Anyway, I tried measuring my Energy speakers, and I was surprised to see a rising frequency response, starting at around 2 Khz and ending around 5-6 dB's up at 20 KHz.
Now, here's what I've been thinking... I suppose this is done in order to deliver a flatter frequency response at 30° or 45° off-axis. This is a mere speculation on my part, but that's the only thing I can think about. I don't know what's the correct way of designing a speaker.... flat on-axis, or flat off-axis?
As it is, I "cloned" the Energy response curve on my latest project (the Tang Band titaniums) and the speakers now similar to the Energies. But I don't know what the right thing to do is... or whether my measurement protocol is wrong.
Any ideas would be very appreciated!
Javier.
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