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Read the Post in new Window Read the Post in Threaded view  Post #3: Use RL filters instead of RC filters. by Romy the Cat on 2010-01-29 
Browse the content of the threads in new Window  Thread: Saying goodbye to the digital crossover. in Didital Things  8 Replies 
Good link, Kris. What is missing in the link is the RL filters. The RC Low-pass filters are fine as the capacitors are not in the band-pass mode.  It is arguable what would be better – a subtractive shunting cap or a few miles of coil in the signal p...

Read the Post in new Window Read the Post in Threaded view  Post #41: Passive RIAA filters are good for full blown preamps… by Romy the Cat on 2009-11-09 
Browse the content of the threads in new Window  Thread: The LCR RIAA correctors in Analog Playback  57 Replies 
Paul, I do not think that “before or after RIAA losses” requirement has any merit as no matter what kind type RIAA filter is being used it always will lose around 20dB. I do not think also that there is a “safest path” or “reasonably affordable”....

Read the Post in new Window Read the Post in Threaded view  Post #57: Drivers/Speakers As Filters by Paul S on 2013-07-19 
Browse the content of the threads in new Window  Thread: Canadian Speaker Proposal in Horn-Loaded Speakers  56 Replies 
The idea of a driver/speaker that "sorts out" noise and "puts it in its place" is very interesting!  But perhaps we are thinking wrongly about how this might be done?  As far as doing it earlier in the "reproduction" chain, I do know a version of thi...

Read the Post in new Window Read the Post in Threaded view  Post #1: A proper implementation of low-pass filters by Romy the Cat on 2008-02-18 
Browse the content of the threads in new Window  Thread: A proper implementation of low-pass filters in Melquiades Amplifier  4 Replies 
If to look at the Melquiades schematic in the channel “A” you will see 78H first order low pass filter. http://www.goodsoundclub.com/PDF/6-Chennal_Melquiades_DSET_Amplifier.pdf The low-pass filter in Milq and the low-pass filters generally is great...

Read the Post in new Window Read the Post in Threaded view  Post #1: Sound of line level filters by noviygera on 2012-03-01 
Browse the content of the threads in new Window  Thread: Sound of line level filters in Audio Discussions  4 Replies 
I thought that a digital crossover had a negative impact on sound quality -- especially for use between a midbass, midrange and tweeter channels. So I made an experiment a what I learned was not expected.I used my mid horn and two high pass filters i...

Read the Post in new Window Read the Post in Threaded view  Post #147: Parametric filters by el`Ol on 2010-05-15 
Browse the content of the threads in new Window  Thread: Romy The Cat's new Listening Room in Audio Discussions  478 Replies 
[quote user="unicon"]if you could understand the basics about how audio waves especially bass range acts in closed space you wouldnt even bring the name Bass EQit just cures the sound pressure in a single spot(listener) and possibly can not do anythi...

Read the Post in new Window Read the Post in Threaded view  Post #4: RL filters and AA by KLegind on 2010-01-29 
Browse the content of the threads in new Window  Thread: Saying goodbye to the digital crossover. in Didital Things  8 Replies 
[quote user="Romy the Cat"]Good link, Kris. What is missing in the link is the RL filters. The RC Low-pass filters are fine as the capacitors are not in the band-pass mode.  It is arguable what would be better – a subtractive shunting cap or a few mi...

Read the Post in new Window Read the Post in Threaded view  Post #40: Notch filters remedy - the the ultimate illusion by haralanov on 2010-08-03 
Browse the content of the threads in new Window  Thread: The loudspeakers for a powerful SET in Audio Discussions  48 Replies 
[quote user="Paul S"]... VERY SHARP resonance I want to damp[/quote]Paul, this sharp resonance peak is indication of time domain problem (it could be seen on a CSD plot), and it cannot be damped just by using electrical circuits with the driver, beca...

Read the Post in new Window Read the Post in Threaded view  Post #1: Correcting Filters and the quantum theory. by Romy the Cat on 2008-09-06 
Browse the content of the threads in new Window  Thread: Correcting Filters and the quantum theory. in Audio Discussions  3 Replies 
Ok, can somebody to elaborate on the judgment which filter is better in case it is a corrector that acts in the middle of auditable range, let say from 1000Hz? It is the same filter but let look at the theory of judgments. 1)    ...

Read the Post in new Window Read the Post in Threaded view  Post #34: High frequency and sharp filters by Romy the Cat on 2010-07-04 
Browse the content of the threads in new Window  Thread: The loudspeakers for a powerful SET in Audio Discussions  48 Replies 
[quote user="haralanov"] The ribbon is 100% tonally … If you use this tweeter lower than 10kHz your system will be totally unlistenable because you cannot reproduce the proper tone of harmonics.[/quote] It is pretty much what I found as well during m...

Read the Post in new Window Read the Post in Threaded view  Post #36: The ML2’s input power filters and everything else… by Romy the Cat on 2007-01-05 
Browse the content of the threads in new Window  Thread: Initial thoughts about new/old Lamm ML2s in Audio Discussions  215 Replies 
Jessie, Actually the tendency of manufactures to isolate ground becomes almost common among any more or less serious manufactures nowadays. The main’s ground is so polluted in US hat it is scare… or even dungarees. I remember a few years ago when I...

Read the Post in new Window Read the Post in Threaded view  Post #13: No filters below 20Hz by Kcct82 on 2009-04-30 
Browse the content of the threads in new Window  Thread: The tapped horns: cons, pros and Sound in Horn-Loaded Speakers  57 Replies 
Hello Romy,I didn't use John Hasquin's tapped horn design, I modeled my own in hornresp for my TAD woofer. I knew I would only need it up to ~55Hz so I was happy to have it flat from 23Hz-70Hz. The lowest crossover point for Behringer DCX 2496 is 20H...

Read the Post in new Window Read the Post in Threaded view  Post #5: Digital Filters by Paul S on 2017-07-26 
Browse the content of the threads in new Window  Thread: Hypex for ULF? in Didital Things  15 Replies 
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...

Read the Post in new Window Read the Post in Threaded view  Post #28: Parametric filters by el`Ol on 2010-11-15 
Browse the content of the threads in new Window  Thread: Macondo’s lowest channel. in Horn-Loaded Speakers  150 Replies 
And don't underestimate the Antimode with its parametric filters. There was a discussion with audio professionals about this topic on diyaudio.com.When the filter Q is matching the Q of the room mode one also has a correction in time domain....

Read the Post in new Window Read the Post in Threaded view  Post #8: Order of the filters in Macondo-like configuration. by Romy the Cat on 2013-03-08 
Browse the content of the threads in new Window  Thread: For one day only in Horn-Loaded Speakers  12 Replies 
[quote user="amdismal"]The crossovers were fourth order, which is what I use on my horns.  Second order, I have found, can give a better blending, but reduced the delicacy and transparency in my system.  But it's very complicated, and further exacerb...

Read the Post in new Window Read the Post in Threaded view  Post #1908: Ayre AC filter - Lessloss X640 by Amir on 2023-05-03 
Browse the content of the threads in new Window  Thread: It’s mad, mad, mad... electricity. in Audio Discussions  1916 Replies 
I have listened to six different AC filters recently in two different audio systems , four of six ac filters were awful but two of them (lessloss and Ayre) were better:- Ayre L5XE - Lessloss x640I do not judge these two AC filters because I did not p...

Read the Post in new Window Read the Post in Threaded view  Post #3: Use RL filters instead of RC filters. by Romy the Cat on 2010-01-29 
Browse the content of the threads in new Window  Thread: Saying goodbye to the digital crossover. in Didital Things  8 Replies 
Good link, Kris. What is missing in the link is the RL filters. The RC Low-pass filters are fine as the capacitors are not in the band-pass mode.  It is arguable what would be better – a subtractive shunting cap or a few miles of coil in the signal p...

Read the Post in new Window Read the Post in Threaded view  Post #4: RL filters and AA by KLegind on 2010-01-29 
Browse the content of the threads in new Window  Thread: Saying goodbye to the digital crossover. in Didital Things  8 Replies 
[quote user="Romy the Cat"]Good link, Kris. What is missing in the link is the RL filters. The RC Low-pass filters are fine as the capacitors are not in the band-pass mode.  It is arguable what would be better – a subtractive shunting cap or a few mi...

Read the Post in new Window Read the Post in Threaded view  Post #17: Power Observations by George on 2007-05-30 
Browse the content of the threads in new Window  Thread: It’s mad, mad, mad... electricity. in Audio Discussions  1916 Replies 
Hello Romy,I am no power expert but here are my observations on your situation.Even though a PS Audio and others create a perfect AC sine wave this does not seem to be the answer, even for low draw front end components. It seems that some type of&nbs...

Read the Post in new Window Read the Post in Threaded view  Post #28: Further though about the BSO files. by Romy the Cat on 2009-04-24 
Browse the content of the threads in new Window  Thread: The BSO and Digital Music. in Didital Things  44 Replies 
Doing some further thinking by my mind that has “little understanding about the technology” I would like to share another concern that for my little mind does make since. According to Mr. Donahue comments above playing the BSO files with a pos...

Read the Post in new Window Read the Post in Threaded view  Post #405: Semantics and other stories by rickmcinnis on 2010-11-09 
Browse the content of the threads in new Window  Thread: Macondo’s Midbass Project – the grown up time. in Horn-Loaded Speakers  455 Replies 
Romy,I know you know there is no such thing as perfection.My favorite quote is from S. Dali who warned, "never fear perfection, you won't achieve it".  But in that statement are, at least, two messages.Nothing wrong in striving for perfection.  Being...

Read the Post in new Window Read the Post in Threaded view  Post #63: About the TwoGoodEars new crossover. by Romy the Cat on 2012-01-07 
Browse the content of the threads in new Window  Thread: Crossover Design in Audio Discussions  69 Replies 
I am not completely thrilled with TwoGoodEars new crossover. http://vinylsavor.blogspot.com/2012/01/making-of-line-level-crossover.html First of all , Stephano has a preamp with tube out stage.  The guy in his post says that the l...

Read the Post in new Window Read the Post in Threaded view  Post #1: Sound of line level filters by noviygera on 2012-03-01 
Browse the content of the threads in new Window  Thread: Sound of line level filters in Audio Discussions  4 Replies 
I thought that a digital crossover had a negative impact on sound quality -- especially for use between a midbass, midrange and tweeter channels. So I made an experiment a what I learned was not expected.I used my mid horn and two high pass filters i...

Read the Post in new Window Read the Post in Threaded view  Post #2: How to make amplification without an unnecessary waste. by Romy the Cat on 2008-07-22 
Browse the content of the threads in new Window  Thread: Incorporating active crossovers into DSET in Melquiades Amplifier  2 Replies 
Mumford, Let clear first with terminology. You post said about “Incorporating active crossovers into DSET” and I think it is not what you are interested; at least it is not what I am practicing. An active crossover implies a use a dedicated active s...

Read the Post in new Window Read the Post in Threaded view  Post #37: More about the HDCD BS at over 1X. by Romy the Cat on 2009-07-03 
Browse the content of the threads in new Window  Thread: The BSO and Digital Music. in Didital Things  44 Replies 
I hate when those industry people steps out really and from facts just to maintain the faces. What would be next: they would record at +5dB digital and suggest that this type of sound cure listeners shin cancer? Yes, Paul Stubblebine is correc...

Read the Post in new Window Read the Post in Threaded view  Post #375: More thoughts about the RSA or the difference between hairy, harry and... by Romy the Cat on 2009-07-13 
Browse the content of the threads in new Window  Thread: It’s mad, mad, mad... electricity. in Audio Discussions  1916 Replies 
What picked my curiosity and what I found very interesting is to learn if the Running Springs Audio (RSA) flaks own any truly dymick/harmonics not screwing filtration know-how. If it so then it would be VERY interesting to merge with APS does wit...

Read the Post in new Window Read the Post in Threaded view  Post #124: It is not about power supply. by Romy the Cat on 2011-09-02 
Browse the content of the threads in new Window  Thread: The last phonocorrector: “End of Life" Phonostage in Analog Playback  310 Replies 
[quote user="N-set"] You always repeat that you do not listen to the power supply thanks to your "isolating" PS philosophy.This is a super attractive thing worth all the blood, sweat and tears! But then at the same time some disturbing notes come tha...

Read the Post in new Window Read the Post in Threaded view  Post #4: Internal line level XO applied inside ML2 by skushino on 2012-06-11 
Browse the content of the threads in new Window  Thread: Multi-amping crossovering. in Audio Discussions  6 Replies 
I'm working on a project that may be of interest to others, and thought posting to this old thread was a better way than beginning a new post.I use speaker level passive crossovers, between multi-amps (not DSET) and drivers.  My desire is to move the...

Read the Post in new Window Read the Post in Threaded view  Post #3: Super Milq 6 channels diaries #2… by Romy the Cat on 2007-08-20 
Browse the content of the threads in new Window  Thread: 6 Channel Version of Super Melquiades in Melquiades Amplifier  131 Replies 
Ok, I completely disassembled one of the Super Milqs and physically injected extra 3 channels.  It looks like everything is all right real-estate wise, still I would prefer of course to have more space…. As now the amp is completely shattered ...

Read the Post in new Window Read the Post in Threaded view  Post #6: AMR DP-777 Bit Perfect I by Amir on 2018-11-13 
Browse the content of the threads in new Window  Thread: Paul McGowan. tubes in preamp in Audio News  12 Replies 
I have listened to AMR DP-777 DAC (SE versio and upgraded nos tubes) many times.in my idea the best sound of AMR dac come from "Bit-Perfect I" filter if you listen to good records. if i put bad records then there is no difference between filters and ...
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