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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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Well a scepter or a baton... Last night before setting up the RTA, I listened to a recording of orchestral works from Strauss (Kempe conducting)... It was early enough that I could "air out the system" a bit. And Ok, maybe I don't have all ...
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[quote user="RonyWeissman"]A mid-bass horn for my Altec 515-8G drivers operating from 100-600hz [/quote]
Rony, I think your wish to have mid-bass horn with 515G is a bit faulty. A mid-bass horn for 515G shall be 50-600 Hz. Let me to explain. T...
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It is looking like I will be constructing the 45Hz horn before some of the others. In considering time-alignment I went back through some of our posts and found this :
Quote from Romy : "...There is another option. Last year, or even before, when...
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My string quartet have just spent 6 days recording haydn and being assaulted by nasty Genlecs.
I can assure you that this is NOT what I want my system to sound like.
(Actually I sort of began to see the point of them after a while.. but
that's ano...
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Too late now for points, but just the other day I tried to imagine your plan. and I was pretty close.Actually, it is a bit like what I have going now; 15" Eminence bass guitarr woofers in a sealed 3 cu ft cabinet,Oris 150 with 8" B&C midrange dr...
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From: John Hasquin Sent: Wednesday, June 15, 2011 To: Bessnow, RomanSubject: Re: Meow
"I think your decay is prolonged because the larger room is providing acoustical pressure feedback into your 45Hz lower bass horn. This feedback is modulatin...
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[quote user="op.9"] One thing nobody has mentioned is using the room’s corners. Is this a no no? I’ve been trying use McBean to model a horn exiting into the corner – with a middle ‘mouth’ about 1m squared - and using a conical approximation as the r...
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[quote user="be"] Regarding the shape of dazzies horn: I can only see a decorative reson to make it round, I dont believe that round is better than rectangular in this range, in fact a rectangular shape will make a much better coupling to the room bo...
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[quote user="jessie.dazzle"]Upper Bass : Frequency range between 100 and 500Hz – Driver loaded into a 120Hz straight horn, driven by DSET dedicated channel. Mid Bass : Frequency range between 40 and 100Hz – Driver loaded into a 45Hz straight hor...
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Romy,
Here's the link to the McCauley 6174 specs...
http://www.mccauleysound.com/product_specifications.cfm?ID=126
In considering your comments on the necessity of a 115 Hz Upper Bass horn : You make a good point...
Your quote : "...If you ...
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Jessie, 45Hz horn with 6”-7” throat around AK151 driver is from my perspective is the best thing might be theoretically built around a cone driver. I really envy of you and if I had room I would unquestionably go for it; this is why I keep a pair of ...
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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="jessie.dazzle"] Romy's comments on "axial rotation" of the horns (meaning in this case, angling the horns) has me thinking. I had planned to build in a vertical tilt adjustment for horns located near the floor and ceiling... I woul...
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Romy,
It's good to have all this info in one post.
Regarding N° 5 :
"5) Horns shell have a sufficient mass properly projected to a given channel’s LF boundary and the horn’s mass should be properly distributed within a horn."
I have seen a lo...
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Good morning Xandg, i thought the same and asked, so i got forced to knock and touch, very heavy & firm. As I wrote, the gravel-filled cavity at the mouth seems to make a difference. Anthony, thats the rooms yes :) It looks redicolous on the pi...
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[quote user="Romy the Cat"] Ok, I do officially like this “Battle Road” hours. Upon many considerations (and there are 4 ways to implement the midbass horn in that room) I have inclined to my leading idea to do it elegant and with time alignment....
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[quote user="jessie.dazzle"] Very simple... The WAF has had enough of the horns... She's met a new guy and is throwing me and a few tons of plaster out of the house! Worst of all, she has custody of the cats!
This will delay the project, as I have t...
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[quote user="nl"] Within that horn-loaded range, the 210/515 type combo does reasonably well, and produces rather more inspirational midbass than most direct-radiator type strategies. There is a reason why these designs persisted for roughly forty ye...
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Romy,
Sorry for taking so long to get back to you… (this being the summer time in a Latin country, I still have no internet connection at the new place).
Quote from Romy “If your lower bass channels run from 40Hz and down then the PS, size of the c...
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[quote user="guy sergeant"]One issue that I would consider is that the Tractrix profile supposedly does not lend itself aswell to extremely low frequency horns (being too short) as other profiles in particular the Hypex (Salmon) shape. [/quote]
Yep,...
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Jessie, I have moved your post to your 45Hz horns thread but then decided to keep it here as some of my comments would be about entire system not only about your midbass horn. Anyhow, there is nothing there to laugh and it is pleasant to see that som...
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[quote user="jessie.dazzle"]I would think they might also compete with the mid-bass horns. The Auras can run up to 80, maybe 90Hz (you're probably going to say "60Hz max!!!"); would you really need to use the line arrays in the presence of a pair...
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Thanks for the detailed answers. I will explain my setup.You are right about the dipole bass correction instead of the injection channel. Since I am waiting for both a subwoofer and the Fane Studio 8M and their horn, I am using the 12" as a b...
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When you set in your chair looking and listening 2 your sound system you are trying to create in your mind and your ears the illusion of instruments placement on the stage in front of you, to make it more lifelike and real. So you putting horns behin...
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A visitor of my site sent me email with following:
“I take it you don't like the Rogero style (or Johan Dreyer) bass horns with wings, but you could add compression to a similar setup and make it work properly. I have made several design...
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A few months back a guy from Europe showed up at this site proposing to sell a set Vitavox K15/40 and Vitavox S2 drivers. I did not need them, I have my own stash, not one looks like needed us as well. In a couple months he reinstated that the dr...
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Below are some images of what I was thinking (my apologies for the long load time) :Please feel free to laugh!jd*Above : View into rear chamber (45Hz horn /AK151)Above : Same but further awayAbove : View showing the attachment of one of the segmentsA...
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Romy wrote :
"...extend HF and LF response very frequently masks out a poor performance in “simple” 60Hz and 12KHz range..."
Yes, in my esperience this is most dangerous because it can end up sounding sort of good.
In my on-going full range ...
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Yes, Ric, thanks for posting it. I have seen it a few years back, in fact I was searching for the images but was not able to find it. I think that fellow was ether Japanese or from Sound West Asia, I do remember already. It looks like it is 20-3...
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[quote user="mats"]Too late now for points, but just the other day I tried to imagine your plan. and I was pretty close.Actually, it is a bit like what I have going now; 15" Eminence bass guitarr woofers in a sealed 3 cu ft cabinet,Oris 150 with...
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