As owner of Unity Summation Aperture horns (10 pairs now 2), and RCL SH-50 Danley Sound Labs' smallest Flagship Synergy Horns, it's the acoustic impedance matching doing the work with the right Flare.
Klipsch Modifications
- Thread starter Mike Gibson
- Start date
MA043HA
New Member
Chris A's thread on the Klipsch forum "
A K-402 -Based Full-Range Multiple-Entry Horn"
is a wealth of info about this and there are many other threads here and elsewhere. Search Synergy, Unity, Danley Sound Labs,
A K-402 -Based Full-Range Multiple-Entry Horn"
is a wealth of info about this and there are many other threads here and elsewhere. Search Synergy, Unity, Danley Sound Labs,
MA043HA
New Member
K-33 and Eminence Delta same size and bolt pattern (probably old news to veterans) means I'll be able to swap on the same woofer mounting plates
K-33 on left has much more clearance with thicker mounting ring for its greater Xmax. Will require longer mounting bolts
A simple jig for cutting slots
K-33 on left has much more clearance with thicker mounting ring for its greater Xmax. Will require longer mounting bolts
A simple jig for cutting slots
MA043HA
New Member
This is a hard foam on both models. Not sure if it would make much difference with hard paper.
It wouldn't. But no one can be sure of anything until they measure rather than just make a comment like the OP, which is cheap and easy.
MA043HA
New Member
Relatively little difference between the nominally 8ohm Eminence Delta (red) and nominally 4ohm Klipsch K-33 (blue) both wired in parallel. The resulting 2ohms of the K-33 pair probably put some strain on my little chip amp but for these tests it showed that the K-33 doesn't dig deeper as hoped. Wiring them in series would be kinder to the amp but require turning up the level.
And this is a problem because? Gain potentiometer broken? Red wins by enough.
MA043HA
New Member
More freehanded "frustrumizing". I wonder is there a way to make this more consistent on my home workbench without large expensive tools?
"frustrumized" on left and not on the right just to illustrate the difference
Jubes vs K402 MEH only left side installed so far. Peavey FH1 just used as a stand
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Gary Harvey
New Member
When Mr. Crites first came out with the 15's, I got a pair and sold the JBL Driver's,
took the extra cash and up-graded the horns.
Crites was on the money... the 15's are smoother.
God Bless Mr. Crites, he knew his stuff, pc
took the extra cash and up-graded the horns.
Crites was on the money... the 15's are smoother.
God Bless Mr. Crites, he knew his stuff, pc
Depends on crossover point and how much bass you want. EVM 15 L's have higher response than K33-like of the Crites. I've had both the stamped and Cast frames of his woofers. Stamped better for cornwall. cast better for Klipschorns. JBL made lots of drivers to which ones did you get rid of? I just bought a bunch of JBL 15's even today.
Gigantic
A big, big love
I built these Super Heresy clones and they sound amazing.
Still, I wondered if they could sound better, as people with audiophiliac aspirations often do... I had a Klipsch 604 horn laying around and thought why not?
with the stock crossover set at 700Hz and a pro driver with a titanium driver that was about 3db too loud and a little harsh, the sound was compelling enough to merit further exploration, in spite of the flaws.
I made a temporary enclosure from scrap plywood I had in my workshop:
An adjustable L-Pad to tame the driver partially worked:
A driver with a phenolic diaphragm was better yet:
as was changing the capacitor in the crossover network to drop the low freq to 600Hz
Finally, a new, 6dB-sloped universal network yielded even better results and eliminated driver overlap between the squawker and tweeter:
I'll be there first to admit that it's completely a kluge from an appearance standpoint, but the sound is incredible, particularly with regard to voices and acoustic instruments.
Still, I wondered if they could sound better, as people with audiophiliac aspirations often do... I had a Klipsch 604 horn laying around and thought why not?
with the stock crossover set at 700Hz and a pro driver with a titanium driver that was about 3db too loud and a little harsh, the sound was compelling enough to merit further exploration, in spite of the flaws.
I made a temporary enclosure from scrap plywood I had in my workshop:
An adjustable L-Pad to tame the driver partially worked:
A driver with a phenolic diaphragm was better yet:
as was changing the capacitor in the crossover network to drop the low freq to 600Hz
Finally, a new, 6dB-sloped universal network yielded even better results and eliminated driver overlap between the squawker and tweeter:
I'll be there first to admit that it's completely a kluge from an appearance standpoint, but the sound is incredible, particularly with regard to voices and acoustic instruments.
Attachments
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Gary Harvey
New Member
SO long back, I'm unable to recall the #'s. Bottom line, I enjoyed the results. Is 2026 or 2226 a 15" driver?
If so, that's what was exchanged. One thing.. I also moved a new pair of XOs into the mix at the same time
along with upgraded horns. Now, I have. the largest set of headphones on the Planet (LOL).
Sounds like I'll be having fun too.
It’s 6dB/octave,12dB/octave, and 18dB/octave - or first order, second order, and third order. Essentially the same is the Type AA. ALK has Butterworth alignment on the tweeter leg, and the AA uses a Chebyshev. Anyway, plenty of overlap on both of these. They are not steep slope designs. Most of what people are hearing is the reduced midrange output of the ALK combined with a slightly elevated high frequency response (roughly 3dB).
Gigantic
A big, big love
but wait! there's more!
as much as the super heresy mods are incredible and the bass extension is a vast improvement, it could be better. I got to thinking: "What about a bass bin with a passive radiator, like some people do with LaScalas? I did some maths and found that a 15.5" x 15.5" x 15.5" extension cabinet would give me the same displacement as a Forte, and simulations showed significant improvement with the Delta Pro 12A and a passive, so I got to work.
I picked up a pair of Dayton Audio 15" passives on open box closeouts at Parts Express. These ones come with weights for trouble free tuning:
Since these are primarily for experimental purposes and not necessarily meant to be a finished project, I very quickly fabbed up some bins from scrap plywood that I had in my workshop, a mixture of baltic birch and cabinet grade 3/4 birch & poplar ply; the woofers just fit:
I brought them home and for laughs, set the SH on top of them with the passive facing outward for emphasis. They're about 5-1/2 feet tall, sitting atop a Dayton Audio Sub1200:
Next, the painful part: cutting holes in the bottom of the SH boxes to mate them up. My intention is to make this somewhat reversible:
Next, I bolted them together:
Finally, I closed them up. I didn't want to make holes in the SH cabs and I wasn't sure if I wanted to put the K604's in the cabinets permanently, so I used the beam terminals to run the wires to the mid horns:
Assembled:
it's ugly, but if you want more bass from your heresy style speakers, this will do it well.
here are the curves from the drivers separately and averaged. the sMAHL is in dark green, the K604 and PRV D270PH-S is in red, the Eminence Delta Pro 12A is in Purple, the Passive is in Orange and the averaged curve of all drivers is in green:
Here's the averaged curve by itself: the signal is relatively flat down to 38Hz, with a gentle rolloff after that. You almost don't need a subwoofer.
as much as the super heresy mods are incredible and the bass extension is a vast improvement, it could be better. I got to thinking: "What about a bass bin with a passive radiator, like some people do with LaScalas? I did some maths and found that a 15.5" x 15.5" x 15.5" extension cabinet would give me the same displacement as a Forte, and simulations showed significant improvement with the Delta Pro 12A and a passive, so I got to work.
I picked up a pair of Dayton Audio 15" passives on open box closeouts at Parts Express. These ones come with weights for trouble free tuning:
Since these are primarily for experimental purposes and not necessarily meant to be a finished project, I very quickly fabbed up some bins from scrap plywood that I had in my workshop, a mixture of baltic birch and cabinet grade 3/4 birch & poplar ply; the woofers just fit:
I brought them home and for laughs, set the SH on top of them with the passive facing outward for emphasis. They're about 5-1/2 feet tall, sitting atop a Dayton Audio Sub1200:
Next, the painful part: cutting holes in the bottom of the SH boxes to mate them up. My intention is to make this somewhat reversible:
Next, I bolted them together:
Finally, I closed them up. I didn't want to make holes in the SH cabs and I wasn't sure if I wanted to put the K604's in the cabinets permanently, so I used the beam terminals to run the wires to the mid horns:
Assembled:
it's ugly, but if you want more bass from your heresy style speakers, this will do it well.
here are the curves from the drivers separately and averaged. the sMAHL is in dark green, the K604 and PRV D270PH-S is in red, the Eminence Delta Pro 12A is in Purple, the Passive is in Orange and the averaged curve of all drivers is in green:
Here's the averaged curve by itself: the signal is relatively flat down to 38Hz, with a gentle rolloff after that. You almost don't need a subwoofer.