Are you still using the A2S driver? I'm seriously considering pairing that waveguide with the Aurasound NS3-193-8A just to see what it sounds like - https://www.parts-express.com/aurasound-ns3-193-8a-3-extended-range-driver-8-ohm--296-258
The NS3 has a much lower Fs and Qts. Still haven't gotten around to simulating either in Hornresp, but the NS3 should have better bass than the A2S and it's 2-3dB more sensitive.
This looks like a good candidate too lower Fs and higher sensitivity https://www.parts-express.com/tang-band-w2-800sl-2-aluminum-mg-full-range-speaker-driver--264-807
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When you include shipping and taxes, what would a European horn, such as a IWATA-300 cost you, compared to a cheap horn from the USA?
I think it is great that you tried a lot of things, and the winner cost only $40. It indicates you're not being too guided by (expense-based) expectations.
https://en.wikipedia.org/wiki/Choice-supportive_bias
That's interesting - they look fairly alike.
Yes still using the same driver until the others arrive for testing. But with measurments and sound this clean, im in no hurry
That driver looks good but i think 2" is the sweet spot here unless you want to cross very low?
Its all in the room, application and user preference!
I may be imagining the VFM being worse but I do remember thinking they were harsh. Not a skerrick of that with these horns
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I'm quite sure what the price of an Iwata-300 is in Europe, but I guess it will be much more expensive than the ebay horns.
I was trying to match the driver Sd to a 2 inch throat and just noticed that I misread the Sd in the NS3 spec sheet as 21sq.cm... The NS3 Sd is 31sq.cm which would require a small throat adapter to neck down to 20.27sq.cm. Still, I'll keep it on the list of things to simulate when some free time comes up.
2.5 inch drivers are probably the closest Sd match for a 2 inch throat, but most 2 inch drivers will fit the entire surround in the 2 inch throat which simplifies mounting.
frangus, do you know what kind of horn expansion that waveguide is? If not, any chance you could measure the approximate expansion for simulation purposes?
Hi Brian,
Im away for the weekend but can get some measurments for you next week
According to this thread it is a conical with expo flare 2/3 of the way up
https://community.klipsch.com/index.php?/topic/166495-replacing-the-k400-with-the-11x17-zxpc-horn/&
Some other useful info can be found in that thread
Im away for the weekend but can get some measurments for you next week
According to this thread it is a conical with expo flare 2/3 of the way up
https://community.klipsch.com/index.php?/topic/166495-replacing-the-k400-with-the-11x17-zxpc-horn/&
Some other useful info can be found in that thread
Thanks. That info combined with the dimensions (17.5 wide by 11 high by 12 inch long) should be enough to start doing some simulations in Hornresp.
For reference, these are the TS parameters for the A2S driver from HiVi/Swans that will be used in any following Hornresp sims:
Sd=13.00
Cms=7.07E-4
Mmd=1.50 (Mms from HiVi)
Re=6.50
Bl=2.50
Rms=0.20 (calculated using Fs=153 and Qms=7.33)
Le=0.03 (estimated from similar size driver with same Bl)
Sd=13.00
Cms=7.07E-4
Mmd=1.50 (Mms from HiVi)
Re=6.50
Bl=2.50
Rms=0.20 (calculated using Fs=153 and Qms=7.33)
Le=0.03 (estimated from similar size driver with same Bl)
Thanks
I did a quick sim with some very strange results!
Lets see what you come back with
Edit: fixed now. For some reason i had ATC at 1000. It seems to model accurately, close to what i measured
I did a quick sim with some very strange results!
Lets see what you come back with
Edit: fixed now. For some reason i had ATC at 1000. It seems to model accurately, close to what i measured
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The Sd of the SB acoustics 2.5" driver is a near perfect 20 cm/2
https://www.madisoundspeakerstore.com/approx-2-fullrange/sb-acoustics-sb65wbac25-4-2.5-full-range/
I think this could work well as a 2" entry horn version of the XBush horn
https://www.madisoundspeakerstore.com/approx-2-fullrange/sb-acoustics-sb65wbac25-4-2.5-full-range/
I think this could work well as a 2" entry horn version of the XBush horn
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The sims definitely look funky, but that's not necessarily an indication of how it sounds 🙂 Here are the input parameters I used with an estimated S2=400:
Ang=1.0xPi
Eg=2.83
Rg=0.10
S1=20.27
S2=400.0
Con=20.32
S3=1241.93
Exp=10.16
Vrc/Fr/Vtc/Lrc/Tal/Atc=0
Looks like 90 +/-5dB from about 200-1000Hz into a 1xPi space. Your actual room is obviously quite a bit different.
Ang=1.0xPi
Eg=2.83
Rg=0.10
S1=20.27
S2=400.0
Con=20.32
S3=1241.93
Exp=10.16
Vrc/Fr/Vtc/Lrc/Tal/Atc=0
Looks like 90 +/-5dB from about 200-1000Hz into a 1xPi space. Your actual room is obviously quite a bit different.
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Are you simulating with a closed rear chamber? That yields different results than an open back driver because of the interference from the back wave. Set Vrc=0 for no back chamber.
Edit: Here's the combined output into 1xPi and 2xPi in the loudspeaker wizard, 1W input, masked resonances. I was never sure why the HF always seemed to roll off with almost every simulation, but it definitely doesn't in real life. Cone drivers definitely beam at higher frequencies so they will be very audible on axis.
Edit: Here's the combined output into 1xPi and 2xPi in the loudspeaker wizard, 1W input, masked resonances. I was never sure why the HF always seemed to roll off with almost every simulation, but it definitely doesn't in real life. Cone drivers definitely beam at higher frequencies so they will be very audible on axis.
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It's because Hornresp by default shows the power response, not the pressure response. Directivity effects are not taken into account.
The pressure response of a single-segment horn can be calculated using the Directivity tool.
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