|
|
| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
|
|
 |
|
|
|
|
|
[quote user="Romy the Cat"]
OI would not worry about the drop at drop at 200Hz. I am pretty sure that you
have some problem with exit of driver and horn throat integration. Anyhow, it is just a bug somewhere, you
will find and fix it. [/quote]I...
|
|
[quote user="Romy the Cat"]Oh, God, what the measurement microphone does at the mouth
of the horn? Is it where you measure your responses? I hope not. Also, even over the bad sound of YouTube
video it is very clear at the example you provided us t...
|
|
[quote user="Romy the Cat"] 4" throat into 1x1m mouth…hmmm, you hardly
will be able to get from it 50Hz. Even if you go for ¼ size and 2 drivers then I think it is a bit too
small. Also, looking at the picture it looks like your horn open up too s...
|
|
[quote user="Jorge"]http://twogoodears.blogspot.mx/2009/12/goto-from-japan-drivers-and-horns.html
Reinhard and Kaluss in Germany has been playing around with the Goto bass drivers for a while.[/quote]Thank you for the link!I'm completely with this s...
|
|
Forgot to attach to have some feeling :)And sound is truly amazing:http://www.youtube.com/watch?v=0gwnRSDGvF4...
|
|
[quote user="Romy the Cat"]That is my constant dilemma while
I socializing with audio people. Om a surface the question about T/S parameters for Goto is reasonable.
It means now I need to correlate whoever I know Goto user and the people who
know ...
|
|
[quote user="anthony"]Have a look at this.[/quote]Interesting product! I've just bought Arta Box for impedance measurement, but this has more features!I'll check with my friend who is helping me with modeling if this will be enough to get all paramet...
|
|
[quote user="Romy the Cat"]Curve the horn. If you Goto channel will not care
any HF over let say 150-200Hz then you might curve the horns, similar to what
WE did with 15A. [/quote]How to time-align then ?[quote]Actually you might get some TS parame...
|
|
[quote user="Romy the Cat"]The Supravox was
12” the Goto 4” how did you convert one into another? You would need a 3-4 feet
adopter to do so.[/quote]I used GOTO's converter from dual 4" to aprox 200sq sm2 throat. It is still 2 times smaller than ex...
|
|
[quote user="anthony"]Perhaps that GOTO hole centred on about 225Hz is to do with using the incorrect throat in the horn? First thing I would do is extend the profile of that big horn so that it reaches the correct throat size for the GOTO units. I...
|
|
Here is frequency response without horn:Here is in my 46Hz horn (green is GOTO, blue is Supravox):...
|
|
I did some experiments today again with GOTO in my existing horn and it is obvious for me that I need different horn for GOTO.Existing horn was modelled and designed for Supravox and I see perfect curve with it.But GOTO in it shows same curve for 50-...
|
|
[quote user="Romy the Cat"]As I said above your you "experienced today with GOTO" is just your transitional
feeling and you will change this feeling many times. To accommodate a pair of 42Hz
horn in a system is a year-long project otherwise you ge...
|
|
Thank you, Romy, for input.
I'm still following my initial concept:
Bottom horn is finally ready and I like the sound with 12" Supravox in it. Moreover, I don't feel the need for Tapped Horn...
|
|
[quote user="Romy the Cat"]It is 4” exit and reportedly goes down to 27Hz. I do not know what a lot about this diver but it might be a good driver for 40Hz horn. 4” into 40hz? God, it has to be at least 16 feet long horn! I would take my head off to ...
|
|
I got GOTO drivers to see how they are going to work in 46Hz horn!This is just luck, as I never expected to find them in Russia, but I did!They are in mint condition, used very little, bought 8 years ago directly from GOTO factory.I have 4pcs - 2 per...
|
|
[quote user="anthony"]You get three octaves of horn loading and then the horn attenuates the signal at 24db/octave below the lower knee and 6dB/octave above the upper knee. So a horn with a lower knee of 42Hz will have an upper knee of about 336Hz r...
|
|
[quote user="Paul S"]Mura, it sure seems like a good 12" driver would be OK above 300 Hz. So, what's up?
Best regards,
Paul S[/quote]I'm not sure that it is driver issue. May be 42hz horn equalization is effective only in 70-300 range.Real measure...
|
|
In garage before getting to the room.
I don't know why, but photo in room is turned during upload.
...
|
|
So, with this horn I got the sound I was dreaming for!Currently system consists of 4 channels:1. RAAL Lazy Ribbon (14k+)2. JBL 2453 in 550Hz LeCleach (1200 - 14k)3. JBL 2490 in first part of own JBL horn (300-1200)4. 12" Supravox in 42Hz 2m long horn...
|
|
Impressive sound! Impressive measured response:...
|
|
Finally...it is almost done....
|
|
Modelling for 3 way under 1khz is done!...
|
|
Well, I'm still waiting for 2m 40Hz horn, 200Hz and 270Hz LeCleach. But can't wait to try something!But I'm very eager to experiment with drivers I have, so this is what I got today!If someone has expirience in judging recorded sound, welcome to comm...
|
|
I think, I have an opportunity with the range of drivers I have to end up with 4 channels, because 15" Supravox can go very low and merge with 8" Supravox quite effectively. Here is model in Leap:...
|
|
[quote user="mats"]My humble guess is that the titanium diaphragm won't ever give you the feeling you seek.JBL 2482 with its phenolic diaphragm may not be the quickest or most detailed, but has a truly wonderful tone that I never tire of.[/quote]I ha...
|
|
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 ...
|
|
I've just got it and successfully integrated to system:Blue - original SPLGreen - with single capacitorRed - together with JBL 2453They match perfectly and sound amazing. Finally violins are very real. I'm completely satisfied with the result!...
|
|
I understand your recommendation and agree. I need to have upper bass and MF and than see how to merge fundamental channel in between.So, I better postpone experiments with compression drivers and only compare 12" Supravox in two horns: 42Hz 2m long ...
|
|
|
|
|
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: |
42,752,804 |
|
|
|
|
|
|