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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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[quote user="jessie.dazzle"] Assuming one will not get anything under 50Hz (usable) from a 40Hz horn, I interpret the mission of lower-bass channels in the context of a horn system as follows….[/quote]
Hm, this is a bit tricky with bass. A pla...
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Principally there are many many theories and papers about ports and how they must be calculated/constructed/placed/used. But none of these theories explains the relation of port design to the SOUND. That’s the reason why so many engineers get s...
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Here is my proposal for an ideal horn system. The concept derives from the really of the horns as I know them, the available park of the drivers, the drivers’ real capacity and from… everything else that I might comment upon if you would not figure o...
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Hi all
Yes, the thing with midbass/upperbass horns , as Romy states, is that those horns are usually built to be too short. You might actually be better off using the driver in a sealed box.
For example, look at the size of a typical upper midra...
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Xandcg, I did not see this thread below. I would not comment
on 5x10x14 vs. 4x8x12 rooms, the answer is obvious,
What I will comment that the scenario you propose is very close to ultimate configuration
for Macondo-like acoustic system. A few this...
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[quote user="jessie.dazzle"] Regarding the Mid-Bass : If these guys are using the main block as a Mid-Bass horn (as Romy's illustration suggests), then the story is getting interesting, and the plot is definitely thickening... It would however seem i...
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[quote user="Stitch"] Well, I didn't come so close to answer your question right.I saw a few from the German DIY scenery and for them it was like the return of Jesus, best sound on Planet But probably they are still deaf as usual, because the Fre...
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LOW FREQUENCY DIRECT RADIATOR DRIVERS
411A –18Hz, 93dB, sealed box414A - 99dB, 30Hz, Alnico, cloth416B – Alnico, 97dB, 25Hz, cloth416C – 16” version of above with Ferrite416Z - 12" version417C – 100dB, 69Hz, Alnico, 1.3T, 12”418B – 100dB, 55Hz, Alni...
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Now that the preliminary excitement of my ingenious idea wore off, I'm ready to share it and accept the harsh reality of any shortcomings... but seriously.
For a while now, I've been been working on optimally integrating my 3 channel...
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It happen that I thought that my old Sony XBR Trinitron TV when sound and I was forced to by a new one. The old TV turner out to be fine and I was stupid to be left with the new one. It is a contemporary LED TV, they say the it is the best. I say...
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Ronnie,
Arranging the driver in a line array is a fierily straight forward thing. Also be advised that the arrays will less likely work across a short wall, and you need to use a long wall. Generally it is imposable to advise anything as any rooms a...
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[quote user="serenechaos"] By “midbass horn” I’m talking about a horn with about a flare frequency of about 60 Hz, to use with Fane 8” drivers, to start with.
(Was planning to use this horn from wherever it sounded best, try...
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OK, I was looking today at the par of the new Melquiadeses posted above and realized they are too ugly to sit them in my room over the 4th July holydays. So, spending another fey hours I designed to end the project and put it behind me. I still do no...
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[quote
user="anthony"]Hi Romy,
So it is time to think about the bass output
transformer in my DSET. My bass channel will be 8 x 25W/8565-00 each side
set in a sealed box and will cover the frequency range below say 100Hz.
These drivers can be ...
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For the past few months, I’ve been looking for a solution to a problem – how to recreate through speakers the same sound that I get through headphones. Why did I embark on this quest? Well although I’m quite happy with my headphones, I miss being...
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I was rushing when I made the last post. Wanted to share a little more about my thought process and how I arrived at doing another large-scale masochistic audio project. Making a bass horn is a huge risk - the results can vary from exceeding expect...
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[quote user="Saturntube"]Similar experience but I get to keep my "old" room. I have just changed my 5 way horn loaded down to 140 hz speakers to a friends room twice as big as mine, with an open back area into the house as your new room has and o...
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A guy read my site and sent me a series of emails complaining that it is too difficult to found Imbedded positioning for his new bass horn as it is too big and too balky. Moving the large and heavy thighs and measuring them is the hard. I agree, but ...
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It took a LOT of time in CAD using what I had learnt from building the power supplies and then adapting it to match the requirements of the rest of the system. I have decided to mount the DSET on the horn stack and direct connect the speaker cables....
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Once you establish that you are for sure on the right track with the whole idea of the Injection Channel, it would not be such a big deal to cut and extend the vertical mast of your Macodo frames, moving your Fundamentals Channel up... You could have...
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Hello all,Some time ago, I bought a pair of very early production ML2s for an ongoing horn project (see "Note at end").Rather than just let the ML2s sit and wait for the horns to get done, I of course tried them out with my "normal" 89db/watt@1m spea...
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[quote user="Romy the Cat"]Whoever follows this thread of mine note my exuberant reaction to the new fixed PP2000. What however I discover today is that for the last few days, right after the snow storm, the quality of electricity in my lines is ...
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Romy, i hope this post doesn't offend your sensibilities. I am not gonna say a word about the physics principles that have led me to the conclusion that this is something that should be tried ( unless you ask of course ).
The idea i have is...
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[quote user="Gargoyle"] Romy the Cat wrote: Scott L wrote: the last time I checked, you were using 6each
@ 10 inch low frequency drivers per side. That's "getting there" but
still not enough to produce an acoustical watt. (which horns CAN do).
...
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[quote user="Kcct82"] I know you're not a big fan of digital delay, but I'm using behringer DCX 2496 to make things easier... this way I get to keep all horn mouths on the same plane which avoids some reflections (from other horn mouths). [/quote]
S...
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[quote user="Merlin"] If they are modifying conventional drive units by hand, the labour costs alone can be prohibitively expensive. The fact that they are using heavy Alnico magnets and coating the diaphrams suggests that these units do not co...
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The Other End of the Single End: Modern Horns Done With Flare An Interview With Dr. Bruce Edgarby Dave Glackin, printed in POSITIVE FEEDBACK. 1996
Dave Glackin interviewed Dr. Bruce Edgar in his home, prior to the 1996 WCES. A follow-up on the speak...
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I would like to point out something that is going on here that I found truly remarkable.
For advanced people ho play with horns there is no second opinion that the vertical array, the Macondo/Cressaro-Gamma type of architecture, is THE ONLY one tha...
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Romy,
Ok... I tried it... I backed off the screws securing the rear cover on one of the S2s I use with a pair of 180Hz horns. I backed off each screw a total of two turns, leaving a gap of 1.5mm.
I also did some measuring, and had left a 400Hz ...
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[quote user="Ronnie"] I don't know any industry wolves unfortunately(?), but more new -01 drivers have appeared at half the price. I think I'll go ahead and make the speakers full range in time for my upcoming 30-years-on-earth-celebration. :-) [/quo...
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