Beautiful! So there are two separate horn paths? Or is there just one horn path, and the second driver is tapped into that?
Looks like Horst has employed two independent differentially tuned pipes, as in his other designs. Most creative. 🙂 I'm not sure I'd call ~14.5in wide x ~20in deep 'very small' but given the size of the boxes I crank out on a regular basis, I'm hardly in a position to pass comment on that score. 😉
What's the polar response like?
What's the polar response like?
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scottmoose
Hello,
polar response,
my measurement are living room measurements, i can´t make polar responses,
but
the invers driver plays only up to 1-2kHz because it is invers,
i will test the Monacor SPH-165, the Polypropylen-Membran has no peaks,
only listenable by room reflexions, both driver in distanz of 0,6 ms, wall near you will get a first reflexion time ~3 ms,
below 100 Hz up to 100 ms are in musik happens,
the bass horn are delayed by 5+8 ms
both are normally not listenable look Summenlocalisation and Präzedenzeffekt.
Precedence effect - Wikipedia, the free encyclopedia
http://de.wikipedia.org/wiki/Summenlokalisation
fronttreiber would be the TB W6 1916
http://www.tb-speaker.com/detail/1230_04/w6-1916.htm
MONACOR INTERNATIONAL : SPH-165
the main effekt is made by deleting the bass resonance and minimized membran movement.
Hello,
polar response,
my measurement are living room measurements, i can´t make polar responses,
but
the invers driver plays only up to 1-2kHz because it is invers,
i will test the Monacor SPH-165, the Polypropylen-Membran has no peaks,
only listenable by room reflexions, both driver in distanz of 0,6 ms, wall near you will get a first reflexion time ~3 ms,
below 100 Hz up to 100 ms are in musik happens,
the bass horn are delayed by 5+8 ms
both are normally not listenable look Summenlocalisation and Präzedenzeffekt.
Precedence effect - Wikipedia, the free encyclopedia
http://de.wikipedia.org/wiki/Summenlokalisation
fronttreiber would be the TB W6 1916
http://www.tb-speaker.com/detail/1230_04/w6-1916.htm
MONACOR INTERNATIONAL : SPH-165
the main effekt is made by deleting the bass resonance and minimized membran movement.
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Yes, I'm very familiar with the precedence / Haas effects. As for group delay, I agree that 5-8m/s should not be audible in the LF. I was simply curious about some of the details, since there is only the line-drawing above.
Out of interest (not specifically related to the enclosure), how do you find the 1916 to perform off-axis? I haven't had chance to hear any, so some more impressions are always useful. FWIW, you might want to look at the SPH-176 if you haven't already done so as an alternative to the 165 (you may be able to get it slightly cheaper too, which is no bad thing).
Out of interest (not specifically related to the enclosure), how do you find the 1916 to perform off-axis? I haven't had chance to hear any, so some more impressions are always useful. FWIW, you might want to look at the SPH-176 if you haven't already done so as an alternative to the 165 (you may be able to get it slightly cheaper too, which is no bad thing).
SPH-176
Hello,
yes it would work but the EBP is not high enough.
may be a bit to much SPL, the mids of the system going to loud,
it takes a few month to finish, but if it is the "same" performance
as the RDH20 it is a step forward to reduce enclosures sizes.
Detail change are only the design, physically they are more or less
the same as the other double horns, except the subfanfare (longer)
Hello,
yes it would work but the EBP is not high enough.
may be a bit to much SPL, the mids of the system going to loud,
it takes a few month to finish, but if it is the "same" performance
as the RDH20 it is a step forward to reduce enclosures sizes.
Detail change are only the design, physically they are more or less
the same as the other double horns, except the subfanfare (longer)
If done well, you could even flatten the impedance peaks by mirroring the two horns. Did you measure the impedance yet?
"der impdedanz frequenzgang konnte beinahe flach sein?" 🙂
"der impdedanz frequenzgang konnte beinahe flach sein?" 🙂
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yes
yes you delete the Bass resonanz,
i say interlacing not mirroring
best documented Kornett with single simulations,
kornettmess
and RDH20, 1 sum, 5+6 single measurements
rdhmess
Kangling ist more or less physically the same,
in ~2 weeks i will write my listening experience
yes you delete the Bass resonanz,
i say interlacing not mirroring
best documented Kornett with single simulations,
kornettmess
and RDH20, 1 sum, 5+6 single measurements
rdhmess
Kangling ist more or less physically the same,
in ~2 weeks i will write my listening experience
Looks very nice..Very retro. I like it.
I hope you will post some thoughts about sound and comparison to saxophone and RDH20...
Did you also had in mine the sonido drivers?
I hope you will post some thoughts about sound and comparison to saxophone and RDH20...
Did you also had in mine the sonido drivers?
Hello,
listen only ~10 hours
but what a surprise,
no ear bleeting by sax, trumpet and solo violin, the 8" double conus driver
are here not so good, bass a bit more punsh than the RDH20 but less "hornig" than
the Posaune variationen, you see why- the soft fibre parts are more or less the cause
for different sound characteristics, the advantage for the Kangling ist the down fire
horn and small horn distances, if you compair with Saxophon and RDH20,
BUT 50 L smaller, "same" max. SPL, i think it is my best mix out of my double horns
in sound and size.
yes sonido 6,5" would be nice as the front driver
listen only ~10 hours
but what a surprise,
no ear bleeting by sax, trumpet and solo violin, the 8" double conus driver
are here not so good, bass a bit more punsh than the RDH20 but less "hornig" than
the Posaune variationen, you see why- the soft fibre parts are more or less the cause
for different sound characteristics, the advantage for the Kangling ist the down fire
horn and small horn distances, if you compair with Saxophon and RDH20,
BUT 50 L smaller, "same" max. SPL, i think it is my best mix out of my double horns
in sound and size.
yes sonido 6,5" would be nice as the front driver
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Very nice work! Can we expect to see some measurements soon?
Is the front horn higher in freq than down firing horn?
Is the front horn higher in freq than down firing horn?
Hello,
measurements next two week, my joiner makes the measurements,
the front horn is shorter but nearly the same flare rate as the rear horn.
measurements next two week, my joiner makes the measurements,
the front horn is shorter but nearly the same flare rate as the rear horn.
Bitumen loaded softboard! here in Sweden they are called Asfaboard, and I use them for cabinet damping. Back in the HH Klinger days the whole horn was built in softboard. There is a thread by me when I measure a Klinger horn for 12" drivers that is built in softboard with a chipboard encasing.
Do you think that this double horn would sound and measure good with the Fostex 168Sigma driver for the front and a 6.5" Silverflute driver on the top? Thanks.
Hi Horst, it's a very good looking design! A nice stable design as well, good for cats and dogs. 🙂
Here in Holland, I only get the normal soft fibre and only in thicknesses of 9 mm. (Also 7 mm, but that is a bit softer and perhaps a bit less suitable.) It seems my resources are poorly matched to your designs. Or can the difference be accomodated?
I have little satelite loudspeakers, sealed box enclosures made of about 3 cm thick cork, made with Visaton FRS 5X drive units. I chose cork because it looked nicer than softboard, but is also a soft and dampening material. Based on Boxsim simulations, I expected response to rise up to 6 to 12 dB from 230 Hz up to 10 kHz. Measured response is actually essentially linear, same efficiency at 300 Hz as 10 kHz. My theory is that the cork vibrates (but not resonates) and produces more sound in the midrange than a rigid enclosure.
Did you also find this effect with Weichfaser?
Here in Holland, I only get the normal soft fibre and only in thicknesses of 9 mm. (Also 7 mm, but that is a bit softer and perhaps a bit less suitable.) It seems my resources are poorly matched to your designs. Or can the difference be accomodated?
I have little satelite loudspeakers, sealed box enclosures made of about 3 cm thick cork, made with Visaton FRS 5X drive units. I chose cork because it looked nicer than softboard, but is also a soft and dampening material. Based on Boxsim simulations, I expected response to rise up to 6 to 12 dB from 230 Hz up to 10 kHz. Measured response is actually essentially linear, same efficiency at 300 Hz as 10 kHz. My theory is that the cork vibrates (but not resonates) and produces more sound in the midrange than a rigid enclosure.
Did you also find this effect with Weichfaser?
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