Hi! I have been living a while now with a speaker consisting of FaitalPro HF206 mounted to a PH2380 horn, crossed at 600hz to a FaitalPro 15PR400. I'm using a minDSP 2x4 HD for crossover and EQ.
The point of this speaker was to be confident that my system could handle full THX reference level. At high levels the horn sometimes sounds really resonant, and especially deep male voice are recreated horribly bad. Distortion at high frequency is also very evident even at 10-15db below reference levels.
So now i'm trying to decide whether i should try a different horn, like the Eminence H2EA, or if i should buy a good midrange, like the Scan-speak 15m Discovery and make it a 3-way with a 27TFFC i have lying around.
Any thoughts would be greatly appreciated.
The point of this speaker was to be confident that my system could handle full THX reference level. At high levels the horn sometimes sounds really resonant, and especially deep male voice are recreated horribly bad. Distortion at high frequency is also very evident even at 10-15db below reference levels.
So now i'm trying to decide whether i should try a different horn, like the Eminence H2EA, or if i should buy a good midrange, like the Scan-speak 15m Discovery and make it a 3-way with a 27TFFC i have lying around.
Any thoughts would be greatly appreciated.
The reason for this is not the horn, but the crossover point. 600 is way to low.
Try 800 for starters. The woofer is very clean up past 800. and I can assure you that the 206 will sound a lot better and less strained.
Try 800 for starters. The woofer is very clean up past 800. and I can assure you that the 206 will sound a lot better and less strained.
I agree that the current xo point seems too low. I used to run P Audio 2" CD's on JBL 2385A horns crossed at 800Hz to a fifteen inch woofer and never had distortion problems at any level.
Thanks, I'll try raising the XO. I've been using LR24.
However it measures pretty clean distortion-wise down to 4-500Hz up to pretty high levels. The measured distortion is mostly in the 1-2k and above 5k-area. Maybe it's intermodular distortion thats causing the issue?
However it measures pretty clean distortion-wise down to 4-500Hz up to pretty high levels. The measured distortion is mostly in the 1-2k and above 5k-area. Maybe it's intermodular distortion thats causing the issue?
I am definatly hearing artifacts of some kind that is only present at relative loud volumes. It is a harshness in the treble that increases with volume.
What the proverbial butt! It does functioning but not showing the attachment when posting!
This is my 4 meters measurement with the same horn...
It's two drivers overlaid, green is Visaton FRS 5X and yellow Monacor SPX 20M with same DSP settings
It might be better to take the speakers outside to setup the crossover / EQ.
The sweetspot measurement is showing a slope on the midbass driver that would make it quite peaky in the crossover region. Maybe a lack of baffle step compensation ?
Try getting them to measure flat outside at 1m, raised up off the ground on a table away from walls. Then put them back in the room and see if they still sound harsh.
Cheers,
Rob.
The sweetspot measurement is showing a slope on the midbass driver that would make it quite peaky in the crossover region. Maybe a lack of baffle step compensation ?
Try getting them to measure flat outside at 1m, raised up off the ground on a table away from walls. Then put them back in the room and see if they still sound harsh.
Cheers,
Rob.
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I reworked the crossover to get a smoother transition between drivers at 850 Hz bw48, I also took out some energy from around 3 kHz. The issues I'm having are now less pronounced, but it's still definitely noticeable whenever instruments effects or voices are concentrated in the 2 kHz to 5 kHz range at high levels. I'd say that 95% of the movie or music sounds great, but when this effect is triggered it kind of pulls you out of the experience. Could this be horn honk caused by the diffraction slot, and if so can it be solved by switching to an eminence H2EA waveguide?