|
|
| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
|
|
 |
|
|
|
|
|
Jessie, yes from a perspective of general horn propaganda your post it correct but from the perspective of “reading the back side of the midbass speed bump” I would argue that it has nothing to do with horn loading. Look at the notion widely. I would...
|
|
Hi everyone,Ive been tracking this exciting conversation for some days. One from outside may think this is weird, we are making a lot of air about some sound-description without getting to the point. Im (or was) normally more rational. And if I read ...
|
|
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 ...
|
|
Good start Dan!The JBL phenolic 2" driver is 2482.I would lower the crossover point as far as you dare, 300Hz or so.Now the 2226 will do what they are pretty good at.Later you will likely want to filter the 2445 around 2k.A 600Hz horn with a 1" drive...
|
|
[quote user="Romy the Cat"]I do not know the 2482 driver but all of the 2” exit drivers have in my estimation some unpleasant behavior as lover knee when you stress them to go very low.[/quote]Hi RomyJBL 2482 was mainly designed for very high power p...
|
|
In my view the leather as a suspension material is absolutely spectacular and this is because it's mechanical impedance is very close to that of the cone (of course made of fine paper) and there is no energy reflected from the surround back to the vo...
|
|
For the person who very easy toss comments like “utter nonsense”, BS and “does not make sense” you are very uninformed. If you stop position yourself as an ignorant teenager who “knows everything” then you have chance to learn something. The Car Talk...
|
|
Of course i used the 515-G. this famous speaker suited very well to our bass horn...as any other bass horn ! the only problem with the 515-G was a upper end a bit...noisy with our 6db crossover.When we started with Cyrille-audio a project of a 15" fo...
|
|
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 PlanetBut probably they are still deaf as usual, because the Frequency step ups are limited...
|
|
Romy quotes in blue (pulled from the "Adding one more channel to the Macondos" thread) "1) Make sure that your cone is properly center in a gap. It is very important as misaligned cone will do compression at bottom end"
I feel confident that I am ab...
|
|
[quote user="be"]The best driver I have heard is the TAD 4003.
It does not use the secondary resonance of the suspension, as described by Duke LeJeune above for the TAD 4001-4002, to extend the response towards 20 kHz, but has a natural roll off fro...
|
|
[quote user="RonyWeissman"] Got my new Le Cleach tractrix horns (320hz) for the Vitavox S2's. I'm x-ing over at 600hz with 2nd order 12db/Octave which I know is barbaric for you but it is all I have for the moment. [/quote]
Why is it necessary...
|
|
Op, I clearly have no idea as I never have seen/heard about the 2440 with phenolic diaphragm. Who know perhaps they did it. The phenolic diaphragms were the invention in late 60-70s and a remedy against the nastiness of the first SS amplificatio...
|
|
Allo Romy, I have no idea about the above - my gut feeling is that the required thickness of material would be too great, still, I bow to your experience in S2 mods. I just wanted to mention something that came to mind that might be of interest: I re...
|
|
Hello Johan, Great pics, the diaphragm appears really thin, almost like gold leaf for guilding...I have a question about the screw mount that Goto uses. Did you by any chance find some kind of flange (for pipes) that would work as an adaptor? Pe...
|
|
For all S2 fans... please be aware that seller "milesvintage2007" was claiming to have found a load of diaphragms in an old cinema (yeah, lots of those running Vitavox in Hong Kong, I'm sure...*)Even forged the labels on the tins... He has since remo...
|
|
... my only experience with newer, expensive Berillium diaphragm Goto drivers, has been a mix between "Wow, I'm listening to a +35K euros speakers system" and... "Gosh, music do not sound this way"... this of course was due to some crossovers tuning ...
|
|
Hm…m… I do not know how about that.
Well, the SG146XX
where the most interesting from one perspective and the most problematic from
another perspective. Goto, never gave to SG146 an option to moderate resonance
frequency and without it I feel i...
|
|
[quote user="Romy the Cat"]I was very slightly open the back chamber of the driver that gave to me some ease at lower knee.[/quote]Congratulations you have found and use this principle, otherwise the back chamber acts like pneumatic brake for the low...
|
|
I think I like what it adds to 8-14k range also, so If I use higher order may be I'll miss it...but I'll try if you suggest.I would like to ask a question regarding 400-1200 range (fundamental channel). You are using Vitavox S2 for this range. Is it ...
|
|
[quote user="martinshorn"]The bass horn for the ak151 is housing a rear chamber slightly open, giving the injector channel - that creates a lot charme, flavor and „heart“ but also 3 dimensional projection. [/quote]I need to say that that very muc...
|
|
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...
|
|
Romy, may be the alnico jbl 2482 + aluminium diaphragm (plastic surround) would suit for your application here. I tested such driver on 200 hz tractrix horn and worked fine. Went down well under 200 hz and is 2" throat. It is heavy but I would be usi...
|
|
This is probably the reason I can listen to EV Patrician IV in relatively small space and close to the speaker without much of fatigue. The other factor must be that it's 4- way design with narrow band-pass for each horn. EV T25 2" phenolic com...
|
|
Jessie, at the home page, in the left, within the GoodSoundClub Section there is the “Announcements” item of menu, which will bring you to the thread with the instruction how to upload the images to the site.
Regarding the issues that you are trying...
|
|
[quote user="cv"]Obviously it makes shipping and transportation a pain. Uncut implies sea transit which will take a few months. Martin mentioned that he almost didn't manage to get them out of his estate car, which would have resulted in the coolest ...
|
|
No love lost for any particular driver type here. They are all all-but-hopeless, as far as I'm concerned, just for different reasons.Jesse, what I wonder is how the small daiphragm of the compression driver, with its very small movements, can b...
|
|
[quote user="rdrysdale"]Romy, I just got a Vitavox S2 into my shop today. I notice that it has a very heavy stainless screen on the front, do you leave the screen on when using the drivers? It looks like it restricts about 50% or more of the thr...
|
|
Hi Romy, Splendid work - much appreciated research this!I know this is totally premature, but if you do find that you prefer the S2 as the flux is increased and hit a current limit for the coil, then you *might* get a flux benefit by using a lower ca...
|
|
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...
|
|
|
|
|
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: |
43,016,143 |
|
|
|
|
|
|