|
|
| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
|
|
 |
|
|
|
|
|
Romy,I'm new here, and I have read your posts in the forum. I
have some questions that relate to this post of yours: 'The midbass horn is
a pain in ass, a big pain!!! The GOTO-Jackson horn went for the very noble
small throat size – somethin...
|
|
[QUOTE]Tone in language is entirely different from tone in language.[/QUOTE]OOPS... should read "Tone in language is entirely different from tone in music."Where's the edit button on this thing?....-----------------------------On single drivers and p...
|
|
MS2, I don't care much about compression drivers, but I have spent the past 2 1/2 years playing with direct drivers, trying to figure out what makes good sound. And no matter any notions about "scientific discoveries", the whole process has been the...
|
|
I’m glad you talk about geometry, but to respond to this I have to refer to other brands. I will only talk about facts and hope it’s not offending anybody.My basic point is: the flare rate has to be coherent right from the entrance of phase plugs. In...
|
|
Robin, I don't know why, but for no reason at all I was thinking the 1" polyester driver was a dome! Its being a compression driver likely means a 2" diaphragm, and it certainly opens the door for sub-2kHz performance. Actually, it's 8" drivers doing...
|
|
[quote user="eduardo"]
YL 75000 has heavy phase plug indeed , rca style (see sketch) while 1250 ( I never had one) gets a fixed metal dome equivalent to spherical piece on 75000 and rca plugs without conical shape pointing the exit of throat. Ir...
|
|
I know they knew a lot in those days and could have dealt with the nonlinearity of air if they wished to or if there attention was drawn to it.Actually air is nonlinear with a uneven order nonlinear connection between pressure and volumen by audio fr...
|
|
Hello Romy and everyone, I am going to order a pair of 400Hz/1" tractrix horns from http://www.stereo-lab.de/tractrix.html to replace/compare with a pair of 500Hz TAD-like square mouth horns. These are to be used initially with the drivers that ...
|
|
From the perspective of pumping of atmospheric pressure the ALE bass drivers might be more capable transducers. It or might not be so as well. To get 40Hz at 110dB in 5” it would take some excursion. I am sorry but you can’t bend the law o...
|
|
Alphahorn seems to incorporate the BMS 4592 coax compression driver. Similar CD horn is already incorporated in the CODA speakers:http://codaaudio.net/Rx35.3-way_full_range_system2.0.htmlThe guy from Austria probably gets the German BMS dri...
|
|
Audiofilofine, You do make some kind of drivers? Do they use any metal in them? Well, your drivers are craps because they use metals. The reason is because pigs cannot climb atop of a peach tree. It is as simple as that. Audiofilofine, of you feel t...
|
|
I am still here still trying to work it out. Read your mid bass horns article again. Learned a bit more. You right about open baffle I once foolishly sold everything I owned to buy a pair of km30. They never sounded good until one day...
|
|
I wasn't trying to critique Bert, or even get into an in-depth critique on the Swing, more Compression Driver configurations -- vertical vs. angled, and coaxial, (and maybe other factors which affect Sound). But I'm more and more real...
|
|
I would not call them “bad”. They use very different magnets and meant to be used with higher power (with all negative consequences). You see the ceramic magnets are more or less OK for LF application but when a driver goes up and hits upper midrange...
|
|
YL 75000 has heavy phase plug indeed , rca style (see sketch) while 1250 ( I never had one) gets a fixed metal dome equivalent to spherical piece on 75000 and rca plugs without conical shape pointing the exit of throat. Ironi...
|
|
Actually Goto does not have default 5-6-7 way systems. I have seen that they recommend 4 ways systems. Definably in the fields the dealer and distributor load their ignorant customers with as much drivers as possible selling them 55 ways systems.&nbs...
|
|
Romy wrote:"...jd, I cannot see any of PDF files, probably my current networks kills them...""...The biggest thing that I wonder is how Mick made the Vitavox bass drivers to has 35Hz resonance. You can always use softer suspension and it will drive r...
|
|
Yes, Rakesh, thanks. I do not know if it is interesting. I look at this report and his findings and I do not know what it all means. It certainly gives a relevant perspective on different drivers but I do not think that it gives any quality perspecti...
|
|
Years ago, when I visited the Cogent guys, Rich was working on one of their big drivers. The diaphragm was big and even thick and heavy, as compression driver diaphragms go. Of course they used 300B amps, and the bottom end had the "sewer pipe" type ...
|
|
Hello again Romy and cats... sorry so slow in replying to this thread... the recent posts generated an automatic email reminder... :^)so a few things... one, there is a pair of Goto 370 on eBay and pictures of insides... the newer ones are made the s...
|
|
[quote user="op.9"] That 18 Sound ND2060A looks very interesting to me. And would fit in with my silly philosophy of only using currently manufactured components... [/quote]
That ND2060A does look very interesting. I never heard or even saw it...
|
|
Translation:Rottbull seems to want T/S parameters for his RCF N850; I'm posting a link to a T/S database which has info on a lot of RCF drivers but not the N850 (it's a compression driver); nevertheless, it may be of some use to him and certainly...
|
|
jd, I cannot see any of PDF files, probably my current networks kills them.
I do not know the AK150 drivers. I know AK157, AK151 and K15/40. If they have significantly lower free-air resonance, at 30-35Hz then I am not sure that they would be ...
|
|
Hello Romy,
I understand the difference between the kind of "basshorn" pictured here and the proper compression-horn that you use. It is true that many DIY-types like to make basshorns in their garage without much thought to technical consideratio...
|
|
Mark,
It is hard to say. I owned T90A sometimes in 2001-2002. At that time I was going through the drivers like crazy and T90A was just one of them. Looking from now I do not think that I gave to many drivers a chance as I did not “work” them trying...
|
|
Well, I have just taken receipt of my Orelo speakers (pic attached) - the bigger version of the Orelino speakers, with 3x 15" bass drivers per channel as opposed to 3x 12" drivers.I realize that Romy doesn't regard the coaxial BMS mid/high compressio...
|
|
I understand that "nothing changed in the horn dimensions if you go from between 10" and 12" driver". You are referring to the horn mouth I assume. Do you have a idea what compression ratio is good to have for upper base horn? It seems that 2:1 is ta...
|
|
Adrian,
This it truly complicated question. The Titans’ upperbass (the better one, curved, with 12” driver) is not realty HF capable and it makes a MF driver need to go all the way down to probably 500Hz (I do not know what Bruce dies in the crossov...
|
|
Yes, it’s the drivers that inspired me to write up this thread. The response looks like it rises slightly atop but it is almost OK for this type of the drivers. Running the driver off the axis it is possible to roll off the HF rise. It is pretty much...
|
|
[quote user="Murataltuev"]Is any
technical background behind the statement that 4" driver can't
operate in 300-1000Hz because resonance is too low ? [/quote]
Well, you need to define what does it mean “can't operate”? Anything can operate anywhere...
|
|
|
|
|
All context of this site except the Forum's posts
Copyright © Roman Bessnow 2004-2024
All messages within the Site’s Forum Copyright © by
authors of the posts
|
|
Last 24-hours posts: |
1 |
|
 |
|
|
Total human visitors: |
42,925,955 |
|
|
|
|
|
|