|
|
| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
|
|
 |
|
|
|
|
|
First off, I forgot to mention an interesting observation: Before running the sweeps (previous post), since the drivers in the upper-bass horns are new, I decided to verify/optimize rear chamber volume (they are easily adjustable)... I wasn't expecti...
|
|
Hi Anthony. No miracles. Round shapes happen to be far more rigid than flat. That will also increase the pressure on the flat opposite plate, which has to be of quadruple stability. You can easily eliminate this by the so called impulse compensation ...
|
|
[quote user="jessie.dazzle"] Resonant frequency :
I did not try to measure it. Can anyone confirm the following : I assume this parameter is most easily determined by playing a series of tones at constant signal strength (volume setting) whi...
|
|
I was reading the Stefano Bertoncello's post about his new multi-amping again options.
http://twogoodears.blogspot.com/2010/09/multi-amping-again.html
.. and I feel that it would be a good idea to brief summarize multi-amping cros...
|
|
I know that some of you might consider it as a dangers subject and if you afraid of yourself then do not read any further. This view has no direct relation to the subject of my site, namely: “advanced audio and evolved music reproduction techni...
|
|
[quote user="Romy the Cat"]I did not say how my saga with APS Pure Power regenerator finish but it never finished. Since the end of the last year the regenerators is sitting in my closet and I have sent the unit’s main board to APS people for the “re...
|
|
This mooring I decided to play with my infinite baffle. The
mess with my analog crossover hat was calibrate for my old listening room gave
me bad IB taste. I bought used stinky Behringer DCX2496 Ultradrive Pro crossover
for $100 to find my new cro...
|
|
Latterly is have been some controversy with new Placette output impedance, it does not look like it is 3R but rather 37R according to my measurement. I need to clear it with Guy. I also desided to address (since the Active Placette is a discrete op-a...
|
|
Romy, I do agree with all your comments. It is true that the magnitude of the rubber taste very much depends on the crossover frequency. I used them below 64Hz, but with first order filter, implemented before the amp that drives them. With that kind ...
|
|
[quote user="noviygera"]I am very curious what "properly made" means when perusing the tonal attributes of LF. What properties or specifications other than driver diameter do you evaluate when perusing a better tone?[/quote]
Normal
0
21
...
|
|
Daniel, if you have start, the igniting voltage, on the gas tubes 197V then it is perfect. If the tubes do maintain stable 150C then leave it as it. Each of the gas tribes has own stabilization voltage. If one of them has let say 148V and another 150...
|
|
This thread is split from the following thread:
http://www.goodsoundclub.com/LatestPosts.aspx?ThreadID=2665
Jessie, I hope you do not mind that I pulled it to the forum explicitly dedicated to the Melquiades Support.
5-channels Melquiades is ...
|
|
[quote user="cv"]That upper rolloff in the OPT comes from a number of distributed capacitances and leakage inductances in the transformer - it will not be a simple filter. Lots of transformers have weird resonances up at the top of their range. In fa...
|
|
[quote user="serenechaos"] on 3) & 4): Dave Slagle, Intact Audio, knows a LOT more about transformers than I do, and the nickle autoformers I got from him work so well, I totally trust his (and/or Jeffrey Jackson's) judgment to over my "guess...
|
|
Got the ultra low DCR toroids coil and pit them in use. Yes, it was very right move and they a bit trimmed the midbass tail. Playing with inductance and listening how the midbass decays (measurements are worthless in this case) I ended up with 4.8mH ...
|
|
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...
|
|
Romy wrote:For Vitavox S2 to use Tractrix 600Hz with 1.5KHz filter is a bit too close in my view unless you stay with second order filter. Would you elaborate further about your warning? I'm very interested in this application.I think you use the S2...
|
|
You do not have a single capacitor on that ribbon as your
cap acts as a second order filter along with the ribbon built in transformer.
You might want to push the ribbon further then 12per octave that you have. I might
not do it if you are “satisf...
|
|
Interesting, thanks Guy for posting.
Let analyze what was done in there. It looks like well-thought, time-aligned, looks like multi-amped configuration. BTW, how the filters were implemented and what (slope/order) filters were?
To my knowle...
|
|
[quote user="Paul S"]Ironically, the "best" musical bass I have gotten is from the ML2s 16 Ohm taps, which seems to fly in the face of both the concept and the obvious problems that the Z/load creates. What I am saying is that despite the "kitt...
|
|
[quote user="Bill"]
Had problems 2 and 3 here with my British crossovers
Both speakers have the 78 hz. Dip after a 50 hz. Peak. they are probably room resonances. Try moving the speakers and/ or the mike and remeasure.Also you have the sa...
|
|
Scott,[quote user="skushino"]- Remove L-pads from mid and tweeter (sounds a little brighter, yet "more pure" and "better" to my ears) [/quote]Lpad sets the attenuation and this is the parameter that should be tuned without fantasizes and subjectivism...
|
|
It is very interesting to hear this idiot pontificate about
turntable able reproduce element of time in music. Some years back when I
visited him, I played to him Tchaikovsky 6 symphony that he never heard, and
after listening to the 1st movement ...
|
|
[quote user="Antonio J"] INTEGRATION that's the clue and that's what I always feel lacks in my room, I mean extreme integration, real integration, the feeling that the recorded bass sound has its own boundaries, not my room's. [/quote]
I do not comp...
|
|
E-v-e-n-t-u-a-l-l-y!!! Eventually the new “fundamentals channel” horn sounds as it should being incorporated in my Macondo! The key was the second order. I really never drove compression drivers to their 500Hz as I always used upperbass h...
|
|
[quote user="stuck.wilson"]In this thread, you previously said--
12) If a filter requires a phase inversion then it is preferable to flood crossover point with amplitude and do not invert phase.
What exactly do you mean by this and how's it work?[/...
|
|
It is difficult to say below what frequency there is no sound registered, the lowest fundamental on a double bass is 41Hz and the A0 on a grand piano is 27Hz, both these fundamentals and at least one harmonic thereof would probably be recognizab...
|
|
[quote user="Romy the Cat"] 1) I would like to try amorphous core foe my LF transformer. I know, I know, the amorphous core is not LF core but I know what I hear and if I found somebody who would be able to make for me d...
|
|
It is new thing. Yep, I was right. As turned my right LF channel
out of phase with my left channel I got my bass back and the super hasty brittle sound was gone. The right LF channel
should be running out of phase with the rest of system as it has ...
|
|
Since my Fostex saga went deep South I was scratching my head wondering what else I would like to do considering the I would like to do as less as possible. Well, talking about to do as less as possible – I like the sound of my shitty Hamster S...
|
|
|
|
|
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: |
4 |
|
 |
|
|
Total human visitors: |
42,948,123 |
|
|
|
|
|
|