|
|
| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
|
|
 |
|
|
|
|
|
[quote user="Romy the Cat"]May 16, 2010: My ultimate wet audio dream was to have Bruckner Room. But so far it turning out that I got another big B room. Since 3 days back I stopped the intellectual masturbation with my room my playback up for the...
|
|
I think Clark Johnson while he was doing his typical promoting of potions that would make hairs to grow on CDs was once pitching some kind of sheets with excellent EMI/RMF shielding. It is possible that EMI/RMF become a subject only when two or more ...
|
|
[quote user="Romy the Cat"] I do not know if “stupid, indiscriminative mass loading is a road to nowhere”. [/quote]Let me try to explain why I think so. Adding mass (e.g. sand+shot loading of steel profiles):1) makes the vibration amplitude smaller f...
|
|
There are lots of different types of "sand", including various sizes and shapes of the aggregates, not to mention the constituent materials, themselves. I thought that in most cases the idea of in-frame sand is to quench/diffuse "ringing", not ULF. O...
|
|
Romy, perhaps your ScanSpeak arrays are a +/- natural fit for mid-bass? If you used them for that you might also push them down a little until you got your ULF solution. The "nice" thing about this is, you might use something relatively simple to d...
|
|
Well, I do have 3 channels of DSEP. Dedicated Single Ended Pentode: one channel (bass/mid 30-500 Hz) with a 307A DH pentode feeding two wonderful Fane neodymium Colossus 12" - one from FS to 150 Hz and the second from FS to 500 Hz. OPT with a lot of ...
|
|
It kind of said the Massachusetts is very much not “horny” state and there is not a lot of enthusiasts of horn loading live in Massachusetts or in the entire New England. If we New Englanders have the saturation of horn interest as high as California...
|
|
After much listening and measuring I convinced myself that there is no way for me to escape the use of the 24dB per octave slope if I want to keep the sound of my midbass horn not violated. I also have to admit that I will not be able to render 4th ...
|
|
I had in my basement Marchand X26 crossover that I use over 10 years back. Since my B-2 power amp with passive filter is being fixed I setup the stock fixed B-2 with external Marchand active crossover. I spent some time to modify the Marchand X26 bi...
|
|
Had a wonderful visit with my Japanese friend. But now she's flying West over the Pacific, and I wanted to add my experience to the TH discussion.The main benefit of the TH is the relatively small mouth compared with a traditional horn. That's all....
|
|
After a lot of extremely pleasurable listening and reviewing own expectation for bass I went down with my bass level quite significantly. I rolled back the change in my bass amp gain and not I am at 5th click, which is about 12 dB down. So, not I am...
|
|
Romy:Wrong? I am every now and then wrong, as most people are, and I am always grateful for any chance to gain a better understanding of anything that has my interest. But given how I now understand your position, I don't think there is a real di...
|
|
I have been lurking here for a while and am fascinated at the discussions of TONE. I play trumpet professionally in Germany and have many opportunities to experience big rooms and big pipe organs as well as symphony halls with various degrees of acou...
|
|
Yes, the modified Crown DC
amps have been good candidates for ULF driving. They have the 1kW model that
was great if you need to burn some power and to introduce negative output
impedance to the ULF. It required a LF filtration however and the ULF...
|
|
ULF is a consent not implementation.
I did experimented ULF based upon aura 18 in past and now I have the line-array
with 10” ScanSpeeks. The ULF is something that you should not be able to hear without
rest of the system. With my current ULF when...
|
|
[quote user="Romy the Cat"]
My current bass is very “integrated” and very musical. It low, it is large, it is extended and it is in away grandeur and it has nothing close with faulty Hi-Fi impressiveness. It never take over sound and never indicat...
|
|
I would like to suggest an alternative factor or explanation to your recent ULF/midbass findings.When you were chronicling the design and implementation of your midbass horns I was curious as to the effect of the very close placement of the two h...
|
|
[quote user="Romy the Cat"]Guys, I am not looking or care about the design specifics but rather looking for some fresh idea and inspirations that would make me to think further. You see, if I shut down Macondo and measure just ULF channels then I...
|
|
My sub-bass amp is back but I am not sure if I am comfortable with it. The guy from QAudio did a wonderful job to fix my modified B-2 power amp and now I have my amp for ULF with passive line level filter in it. So, Now I have two identical, fully fu...
|
|
Ok, I will share with you some ideas that I have in my head how to deal with horn decay asymmetry. They are in a way the further development of the Haralanov’s idea of acoustic diode – the brilliant concept from my point of view.
Before I will...
|
|
Great analyses, David, thanks. I can’t concur as now with anything. Macondo in the room with midbass horn was a complex installation and with ULF it became even more complex. Some of the things I setup by ear and do not use measurements, I just know ...
|
|
Rakesh, I think you take it all wrong and I think you need to perform some degaussing from my site. You created for yourself a cardboard cutout of ideas that I describe at my site but it is not what it is. Macondo Axioms are not set of rules but a di...
|
|
This si very interesting thread for me, just a couple of points more;I heard a bass driver can be cut under its resonant frequency, this will allow the driver to go much lower.Say a huge pro paper woofer with FS at 35 hz: we could use it as ULF chan...
|
|
The frequency where your room turns into a pressure chamber changes the way that we perceive bass. This is how we get "bass" in a too small space like an automobile. When removing the ULF channel, all of the music is transmitted in a natural way for ...
|
|
Thanks for responding. You mention a rotary phase knob. Is this ULF system connected through a digital processor? If yes, will you expand on DSP effects on sound and system integration with the DSP? Many "pros" use these filters to "handle" speak...
|
|
when talking ulf are we talking array of aura 18(the old ones not new junk), or something else...
|
|
I seem to remember that we've covered somewhere the sonic benefits of SET at lower frequencies, but I guess I never really thought of ULF as "bass", per se. If someone ever comes up with an SET that can be an effective part of an AuraSound circuit, ...
|
|
If I somehow was able to recalibrate Macondo to run with the specifics of my new PP2000 sound but in the lower bass my currant playback is completely dead. It is not that it is non-listenable –it is enjoyable but the whole lower end of the midbass ch...
|
|
I did not feel that it would be easy but I just found looks like a good configuration for ULF section. A second order 35Hz, yes, surprisingly second order. The key in this configuration is not to be selfish and to drive the ULF too hot. This might be...
|
|
[quote user="decoud"] None of these seems to apply in your case because you have a properly levelled installation, directly on concrete [/quote]If I had it on a concrete I'd be very happy! On wood it is, mafrend, on wood.[quote user="decoud"]I see th...
|
|
|
|
|
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: |
43,014,794 |
|
|
|
|
|
|