|
|
| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
|
|
 |
|
|
|
|
|
Thanks Romy. First the amps will be finished and then the Upperbass horns. I may even get the second DSET ready to go upstairs this weekend assuming everything goes well and nothing goes wrong. Will be nice to hear what I have at the moment in ste...
|
|
I had the same problem with my 6 foot, bass horns , which were built from 3/4 inch high density fiberboard. On doing some measurements back then, it turned out that they were vibrating for a few milliseconds after a pulse, giving a decent rise time b...
|
|
[quote user="Romy the Cat"]
OK, now I am happier as I did my duty and the back chambers are ready to be attached to the horns and to be lifted up. Yesterday I spent 5 hours trying to build the back chamber displacement that Jessie and my carpenter ...
|
|
The back chamber will be revised when we do there.http://www.goodsoundclub.com/PDF/RomyTheCat_Midbass_Horn.pdfThe Cat...
|
|
Ok, I have hired a contractor and run the insulation between the space where will be the horn and the roof. He laid the plastic channels that still will allow air convention between the horn and roof. Ironically while we did it we devised a program t...
|
|
I was listening recently my Carl Schuricht’s Bruckner and I again noted what I am been noting for a while. I feel like my Midbass horns begin to sound a bit saggy. It is not too but and the degree of change is very minor. It is not even auditable...
|
|
Romy,Thank you again for a helpful reply. Your comments are very appreciated inspite of not suggesting what to do. I will figure that out myself. And here is what I've learned so far:>> Herman, if you use Precision Devices hen you are at mid-hi...
|
|
ygoh wrote:
1.) What's that formula to calculate the back chamber volume given a throat reactance?
2.) Would it be a bigger back chamber with higher reactance at the throat? or vice versa?
You do not ne...
|
|
[quote user="Romy the Cat"]Actually if that horn would not be bending atop, go for another couple feet vertically, consequentially has a smaller throat and of course has a strong back chamber then it would be a very good J-horn (presumably that the w...
|
|
I really would like the Vitavox users who use the bottom region of S2 driver to pay very serious attention to my post above. The redaction of compression in this driver and dropping the resonance frequencies does impacts the lower knee sound of the d...
|
|
[quote user="Romy the Cat"]I mean the driver from 14Hz to 150HZ gas absolutely linear impedance as it has no active load. I look at all of it and felt so tiered and I walked out if it. I think in the new room the horn is shooting into the wide open s...
|
|
[quote user="anthony"]It is a compression driver with an 8" cone. If you want authority at 300Hz you will need diaphragm area. The Fane Studio 8M that Romy and plenty of others use for 100Hz up to 1kHz is an 8" cone driver on a 4" throat with a clo...
|
|
This is a complicated subject.
While building the horn I would need to know what the size of back chamber to make. Usually the initial size of driver diameter plus two depth works very nice. It makes big chamber that eventually might be minim...
|
|
[quote user="jessie.dazzle"] Could you clarify: Would you like to vent the rear chamber or increase its volume (or both)? This weekend I will try listening with the rear covers on the Lower-Mids slightly open... [/quote]
Good question. I do no...
|
|
[quote user="Rewind"]Hi, I am slowly building my own Macondo. I understand why the injection channel is there. It brings some kind of softness that the compression drivers lack. [/quote] OK, but it is not how I feel about the service of injection...
|
|
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 ...
|
|
[quote user="jessie.dazzle"]I really appreciate the result of the 180Hz horn with the S2... Particularly in terms of "texture". It is responsible for such an important range... [/quote]
Well, if you appreciate the lower knee of the S2 driver then wa...
|
|
A few months back a audio guy visited me and after a listening session I asked him if he can report any problems with sound. He reported that he hears a slightly more prolonging decay at upper bass then what he suspect to be. I knew about this effect...
|
|
A friend stopped by tonight when I was test-listening my midbass horn. He got freaked out from the size of the thing. I played for him some Gerhard Oppelt’s organ recordings. He told me that I am crazy, like I do not know it myself. Anyhow, he made a...
|
|
[quote user="ygoh"] 1.) Why is it that you do not support using teo compression drivers in the same throat? Is the distortions increases, such as wavefront distortion? [/quote]Sure the wavefront gets spread; it is what Wilson does in his ...
|
|
Miab, I have very limited knowledge in construction techniques, moist prevention and how all of it might affect a big horn. My very uneducated production suggests me that it is not truly a bid deal, but of cause if go this route then I certainly ...
|
|
Actually it is good that you reminded me about the Tannoys as behind my recent paranoia with the “Water Drop” tweeter I forgot about the beauty that blessed my life. I am taking about the “older” Tannoy’s tweeters. What is magnificent sound!
I’m not...
|
|
This project just woke from a long slumber.I've been granted access to tools and people to move this forward. The tools are a large-scale CNC cutting machine and paint shop, used to fabricate volumes (large 3D shapes) attached to climbing walls at i...
|
|
Being a musician, I deal with constructive resonance every day. Tubes resonate as a function of length, boxes resonate as a function of the internal length, width, diagonals. Irregular shapes resonate as a function of volume, horns resonate as a func...
|
|
I’ve been thinking about all this electricity stuff…
I’ve stopped using all power conditioning devices since Bush got re-elected, and I consequently left the country to start a new life in the land of 220v/50Hz (this BTW, is not an exaggeration).
...
|
|
Ronnie,
The stuffing the back chamber in upper bass horn and stuffing a sealed enclosure have totally different purposes. In the firs case we need to decrease volume of the chamber in the second to increase it. The polyurethane foam spray is not foa...
|
|
I got this new midbass horn to replace the Edgar 80Hz straight horn. It is made by Funktion-One and they claim it plays down to 90hz. I could not get it to play below 120Hz and I am trying to figure out why.Pictures are:mouth measurements with no fil...
|
|
Hi Romy, I ended up using a TAD 1101h 11 inch driver, 97db, 38fs, and is what I believe a stronger cone than the Goto 8 inch. The DIY mid bass horn is a 1/2 space 53hz hyperbolic horn with 5in x 5in square throat. Length is about 8'6", height of mout...
|
|
[quote user="Romy the Cat"]
...this interesting point has no practical answer. First of all in the case of Rakesh horn what N-Set proposed is not necessary. Those 115Hz Hasqiun-style horns that Rakesh emulates are well dumped with own mass and own ...
|
|
It was interesting, educational and in way embarrassing. Last night I send the directions to my carpenter to redo the third section in accordance to the original plan where the opening of the sections is more consistent. This morning he took the thir...
|
|
|
|
|
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: |
0 |
|
 |
|
|
Total human visitors: |
42,920,919 |
|
|
|
|
|
|