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Read the Post in new Window Read the Post in Threaded view  Post #69: Further thoughts about ULF channel. by Romy the Cat on 2011-03-10 
Browse the content of the threads in new Window  Thread: Macondo’s lowest channel. in Horn-Loaded Speakers  150 Replies 
Me being exuberant about the new ULF capacity does not necessarily mean that ULF contribution is right and proper, let me to explain. There is a musical event that has it sonic representation. This sonic representation better or worst was captured by...

Read the Post in new Window Read the Post in Threaded view  Post #66: About ULF attenuation. by Romy the Cat on 2011-03-09 
Browse the content of the threads in new Window  Thread: Macondo’s lowest channel. in Horn-Loaded Speakers  150 Replies 
Actually I got interest in the idea of having remote control attenuator on my ULF amplifier, I juts need to find a company who will be able to do it for me. For whatever reasons audio people feel bass channels have to have an attenuator. This is alwa...

Read the Post in new Window Read the Post in Threaded view  Post #117: An absolute must for ULF channel. by Romy the Cat on 2011-06-11 
Browse the content of the threads in new Window  Thread: Macondo’s lowest channel. in Horn-Loaded Speakers  150 Replies 
This for someone who do not use ULF might be considered as superfluous but I am going to tell you that that for me, the person who use ULF dally, it is an absolutely mandatory tool. The ULF channels have to have a good calibrate dB meter that in real...

Read the Post in new Window Read the Post in Threaded view  Post #17: What to expect from ULF channel? by Romy the Cat on 2010-10-28 
Browse the content of the threads in new Window  Thread: Macondo’s lowest channel. in Horn-Loaded Speakers  150 Replies 
Since I finalized how my midbass horn handles decay the only things left in my playback is to set the right level and cut off point of my ULF channel. Formerly I did set it up for 35Hz, second order and it was fine as a temporary setting. However in ...

Read the Post in new Window Read the Post in Threaded view  Post #100: Listening audio without ULF. by Romy the Cat on 2011-04-06 
Browse the content of the threads in new Window  Thread: Macondo’s lowest channel. in Horn-Loaded Speakers  150 Replies 
You know, it surprises me how much less fan to listen my playback without ULF.  Nope, the playback does not sound bad from audio perspective without ULF but it for sure a bit different experience. From a certain perspective to be in a room with U...

Read the Post in new Window Read the Post in Threaded view  Post #96: I do not know what I deal with. by Romy the Cat on 2011-03-24 
Browse the content of the threads in new Window  Thread: Macondo’s lowest channel. in Horn-Loaded Speakers  150 Replies 
Last night I spent some time with observing my ULF and I conclude that I am not exactly know what I deal with. Do not get me wrong: the ULF forks fine, sounds fine and the playback is perfectly operational and listenable; it does sound very good ...

Read the Post in new Window Read the Post in Threaded view  Post #111: The art of ULF volume adjustment. by Romy the Cat on 2011-05-08 
Browse the content of the threads in new Window  Thread: Macondo’s lowest channel. in Horn-Loaded Speakers  150 Replies 
[quote user="Romy the Cat"] For a casual observer it might appear that I am constantly fought with my ULF, finding and loosing better and worse configurations.  It might be so but I have a very strong sense of objective of what I would like to ac...

Read the Post in new Window Read the Post in Threaded view  Post #25: ULF is ULF by Romy the Cat on 2015-03-06 
Browse the content of the threads in new Window  Thread: Melq 6e5p driver stage for ss? in Melquiades Amplifier  29 Replies 
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...

Read the Post in new Window Read the Post in Threaded view  Post #40: The crisis of perception. by Romy the Cat on 2010-11-16 
Browse the content of the threads in new Window  Thread: Macondo’s lowest channel. in Horn-Loaded Speakers  150 Replies 
I pretty much know what I need to do – I need to go for shaper filter built in my power amp. The second order I have no is too impactful to midbass, so I need to do for 2th order or perhaps for 4th and try to integrate it.  Whatever it will be I thin...

Read the Post in new Window Read the Post in Threaded view  Post #95: There is “something”… by Romy the Cat on 2011-03-23 
Browse the content of the threads in new Window  Thread: Macondo’s lowest channel. in Horn-Loaded Speakers  150 Replies 
[quote user="RF at Ona"] Romy,I might have overlooked something on your site but I understand that your ULF amp is driven directly by the preamp line stage. If that is the case, you may want to consider an old technique for integrating subwoofers...

Read the Post in new Window Read the Post in Threaded view  Post #112: Sitting on a fence with ULF by Romy the Cat on 2011-05-10 
Browse the content of the threads in new Window  Thread: Macondo’s lowest channel. in Horn-Loaded Speakers  150 Replies 
I am not sure that I am at final stage of my ULF wondering. I do like the integration-free problem of my ULF via tube crossover. I am a bit concert that I am injecting now + 9dB at sub 20Hz and do not feel that I have too much bass. I am a bit mo...

Read the Post in new Window Read the Post in Threaded view  Post #97: I want my ULF amp back. by Romy the Cat on 2011-04-04 
Browse the content of the threads in new Window  Thread: Macondo’s lowest channel. in Horn-Loaded Speakers  150 Replies 
I was trying to fix my broken B2 amp and I think I “fixed” it to the point that it is absolutely dead. That made me very upset. It is kind of funny as playback sounds fine without ULF channel and I frequently listen with ULF channels off.   However, ...

Read the Post in new Window Read the Post in Threaded view  Post #65: Getting some maturity with ULF by Romy the Cat on 2011-03-08 
Browse the content of the threads in new Window  Thread: Macondo’s lowest channel. in Horn-Loaded Speakers  150 Replies 
I am continuing evolving with my ULF application. The IslandPink’s question if my ULF affecting various types of music sound kind of funny. Would my answer to be predicable? I a bit release the pressure from ULF. The way I use ULF allow to chalks the...

Read the Post in new Window Read the Post in Threaded view  Post #46: Sorry, they are incorrect premises. by Romy the Cat on 2011-09-27 
Browse the content of the threads in new Window  Thread: Constructing LF modules to the limits in Audio Discussions  54 Replies 
[quote user="be"]It seem that the concensus here is that there is no tone in the ULF range, something like below 50Hz.[/quote] The range “below 50Hz” is not ULF range. Below 50Hz is regular LF or regular bass region. The whole definition if ULF is th...

Read the Post in new Window Read the Post in Threaded view  Post #20: Time coherence of ULF - my experience by scooter on 2010-11-05 
Browse the content of the threads in new Window  Thread: Macondo’s lowest channel. in Horn-Loaded Speakers  150 Replies 
Time coherence of ULF may be less important than that of higher frequencies and that seems to make sense in theory and jibes with my own experience. However, I still think ULF timing matters a lot with respect to a) higher frequency drivers and b) ot...

Read the Post in new Window Read the Post in Threaded view  Post #54: My take about tapped horns for now. by Romy the Cat on 2011-05-03 
Browse the content of the threads in new Window  Thread: The tapped horns: cons, pros and Sound in Horn-Loaded Speakers  57 Replies 
I have explored the subject of tapped horns. My exploration did not include listening them – ridicules, isn’t it? I did consult with a few folks, who I respect and who built and heard many of them and who know subject well. I pretty much know what I ...

Read the Post in new Window Read the Post in Threaded view  Post #50: A new paradigm for ULF? by oxric on 2011-02-09 
Browse the content of the threads in new Window  Thread: Macondo’s lowest channel. in Horn-Loaded Speakers  150 Replies 
[quote user="Romy the Cat"] The most important in audio is a state of realization and obtaining this state is a matter of time I am afraid. Let pretend that tomorrow I will build/buy some kind of speaker that would do the perfect ULF channel ...

Read the Post in new Window Read the Post in Threaded view  Post #136: How good ULF needs to be? by Romy the Cat on 2011-11-07 
Browse the content of the threads in new Window  Thread: Macondo’s lowest channel. in Horn-Loaded Speakers  150 Replies 
This is very interesting question. I do not know a lot of people with whom I might collaborate it as very few run ULF channels. Most of time people run just bass channels. It is my experience that whenever audio people talk or think about the low...

Read the Post in new Window Read the Post in Threaded view  Post #51: …a number of logical flaws… by Romy the Cat on 2011-02-09 
Browse the content of the threads in new Window  Thread: Macondo’s lowest channel. in Horn-Loaded Speakers  150 Replies 
[quote user="oxric"] I believe that although you may be wrong to make a difference between ULF and the rest of the frequency range….[/quote]I know when I wrote it I would raise some eyebrows of the few readers of my site who actually are thinking...

Read the Post in new Window Read the Post in Threaded view  Post #87: My ways to mimic Reality. by Romy the Cat on 2011-03-13 
Browse the content of the threads in new Window  Thread: Macondo’s lowest channel. in Horn-Loaded Speakers  150 Replies 
I am trying to keep the discussion about midbass horns out of ULF thread, I guess if Rakesh would like he can create a separate thread dedicated to his specific installation and the design ideas. I would like to keep the content of the posts more...

Read the Post in new Window Read the Post in Threaded view  Post #30: I think I have found the problem with my ULF by Romy the Cat on 2010-11-15 
Browse the content of the threads in new Window  Thread: Macondo’s lowest channel. in Horn-Loaded Speakers  150 Replies 
[quote user="jessie.dazzle"]In this case, below 50Hz, I think el`Ol is right to suggest that you consider using DSP as a permanent solution. The SMS 1 is in theory the silver bullet... You just need to find out if you can live with it long-term.   Be...

Read the Post in new Window Read the Post in Threaded view  Post #68: My implementation of ULF channel. by Romy the Cat on 2011-03-09 
Browse the content of the threads in new Window  Thread: Macondo’s lowest channel. in Horn-Loaded Speakers  150 Replies 
Yes, I promised to tell about, so here is comes. The past Sunday I woke up at 6AM and first intention to answer to myself what is wrong with my ULF. I had wonderful sound with absolutely wonderful and the most important very proper bass.  Howe...

Read the Post in new Window Read the Post in Threaded view  Post #141: ULF-only Sound by Romy the Cat on 2011-12-17 
Browse the content of the threads in new Window  Thread: Macondo’s lowest channel. in Horn-Loaded Speakers  150 Replies 
This week two audio persons visited me. Both of them experimenting with loudspeakers of own design and during their visit I discounted my Macondo channels and demonstrated to then the contribution of the each channel to Macondo Sound. Both of them di...

Read the Post in new Window Read the Post in Threaded view  Post #452: It looks like how it works by Romy the Cat on 2013-06-05 
Browse the content of the threads in new Window  Thread: Macondo’s Midbass Project – the grown up time. in Horn-Loaded Speakers  455 Replies 
The effect indeed is very interesting. I think it has to do with some complex phase interaction what the high knee of ULF squashes the lower knee of midbass. From general perspective I would say that this is not good as I would prefer to observe summ...

Read the Post in new Window Read the Post in Threaded view  Post #2: ULF Issues, or ??? by Paul S on 2021-07-16 
Browse the content of the threads in new Window  Thread: ULF: where is the borderline....? in Playback Listening  4 Replies 
Romy, is this a trick question? You are the only person I know of with time aligned, true IB ULF channels using 4 Aurasound sub-woofers, so who's going to answer your question?  The first thought that came to my mind was how some "Big Music" composer...

Read the Post in new Window Read the Post in Threaded view  Post #94: Drive ULF Amp from Midbass Amp Output by RF at Ona on 2011-03-23 
Browse the content of the threads in new Window  Thread: Macondo’s lowest channel. in Horn-Loaded Speakers  150 Replies 
Romy,I might have overlooked something on your site but I understand that your ULF amp is driven directly by the preamp line stage. If that is the case, you may want to consider an old technique for integrating subwoofers and drive your ULF amp w...

Read the Post in new Window Read the Post in Threaded view  Post #19: The new ULF scenario experiments. by Romy the Cat on 2010-11-05 
Browse the content of the threads in new Window  Thread: Macondo’s lowest channel. in Horn-Loaded Speakers  150 Replies 
[quote user="Romy the Cat"]Even though quantivly and structurally bass is correct but it is not what I am looking. [/quote] Last night I got rid the SMS crossover.   I built in the 28Hz, 12dB per octave crossover in the Yamaha B2 amp that I use f...

Read the Post in new Window Read the Post in Threaded view  Post #103: A True ULF - what an amassing tool!!! by Romy the Cat on 2011-04-18 
Browse the content of the threads in new Window  Thread: Macondo’s lowest channel. in Horn-Loaded Speakers  150 Replies 
I have been running now a digital crossover at 20Hz, 3th order with some kind of shitty power amp. The digital crossover has a remote control. I would not say that I like the quality of my ULF but I am telling you that True ULF implementation is abso...

Read the Post in new Window Read the Post in Threaded view  Post #53: The sub-subject. Terra Incognita of audio. by Romy the Cat on 2011-04-12 
Browse the content of the threads in new Window  Thread: The tapped horns: cons, pros and Sound in Horn-Loaded Speakers  57 Replies 
Josh, I think that you touched more complicated subject then you think. Let me to explain why I feel this way. The fact that I advocate a dogmatic, religiously-stubborn, almost paranoid time alignment of the channels is not a secret. I do feel very c...

Read the Post in new Window Read the Post in Threaded view  Post #71: I would agree but… by Romy the Cat on 2011-03-10 
Browse the content of the threads in new Window  Thread: Macondo’s lowest channel. in Horn-Loaded Speakers  150 Replies 
…but there are a few considerations that I would like to stress. 1)    The ULF pressurization must not impact auditable sound in any negative way. If it does then all bets are off and ULF better do not be used. 2)    The ULF pressurization ...
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