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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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[quote user="anthony"]Romy, I
appreciate that this is an old thread now and that you may not remember
everything from your time developing these amplifiers, but I have a (hopefully)
simple question about the upperbass crossover in the schematic ab...
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[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...
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Guy, here some unconnected comments that you might find worth considering. They are in no order or importance, just random thoughts.
1) Talking and describing about horn we shall always mention at least 5 mandatory characteristics
...
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Aga, you clearly see a split in the image referred above it
means that the midhorns are no single solid horizontal assembly but two separate
units that were so unlucky positioned probably for the sake of photogenicism. Jonathan Valin In his write u...
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[quote user="Romy the Cat"] speedysteve wrote:Well, I think
it is horses for courses and the tapped horns are a bit of a different
gigi. I found it is imperative to suffocate the
rubbish that is coming out of tapped horns above say 100Hz - min...
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The Japanese maker/reseller G.I.P:
http://www.gip-laboratory.com/
http://blog.audio-life.nl/2011/01/western-electric-gip-laboratory_16.html
… looks like came up with a new loudspeaker. I do not know a lot about the co...
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Yes, this English pace did not give a lot of new information. I know nothing about the AudioTekne Company. I like that they wrote about their bass driver but I do not know how much truth and the actual results behind it. I do think that they wor...
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Similar to the famous sexist tail that women can be only ether pretty or smart the midbass horns unfortunately behave in the very same way: they can be only nicely placed in a room or they can sound good. You want the horn to place in a specific ...
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[quote user="JLH"] I don't recall you talking about Pressure and Tone SPL before. [/quote]
http://www.RomyTheCat.com/TreeItem.aspx?PostID=3675
[quote user="Romy the Cat"] I know this effect but if it happen with bass h...
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It is not surprising that the subject of horn is as screwed as the subject of drivers. It is understandable as driver must be made for specific horn loading, not one make drivers properly, so what the horns are made for?
A horn is a very simple dev...
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Ronnie,
I’m sorry I was not able to detect the clipping you were taking about listening your file. However, if you can hear ANYTHING distorted at 1kHz (when ONLY your upper bass horn is playing) then you might consider the following: it has NOTHING ...
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(Note: I've neither seen nor heard these speakers)
Cessaro ALPHA:
TAD TD-4001 2" driver on tractrix horn with 56cm bell (approximately 250Hz). TAD claims response from 600-20KHz. Given that the midbass is essentially a direct radiator (theref...
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I need to give it to you and I need to retract my comments
about your bass pipes. I did find them to be ugly in your prototype drowning
but assembled I find them look very present, in fact quite wonderful. Connection al, of then in parallel is goo...
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[quote user="rowuk"]Amir,In live music, we have intermodulation. Two trumpets or a trumpet and oboe playing together create sum and difference tones that change depending on pitch interval for instance. For music in major keys, this intermodulati...
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Anthony,
Yes, this is the exact configuration that I have. As you drive your LF channels down, probably it will be 30-35Hz with >2 order filter you will like the sound from them even more. I hope you have a good ...
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Thanks for the kind words Romy. I am enjoying taking my time with this project and getting things just right. It sure helps when there is little development involved, just duplication more or less. Development may come later as I impose my exp...
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[quote user="Romy the Cat"]Folding introduce a bunch
of resonating chambers and cost audio coloration in most of the cases that do MASK
OUT the transient dynamics but folding itself should not have an impact to dynamics
itself.[/quote]Might be the...
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[quote
user="Newtohorn"]Thanks for all your inputs. I take Romy's
words that the Olympian sound is not what customized horn systems in horn
enthusiasts' room sound like. Of course, I wanted to hear the opposite,
that enthusiasts here get the so...
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Yep, indeed, it looks very nice. The 8 sections of bass line
array look visually slightly overweening but I think when you put the upper
bass horns in place it will visually balance the things out. I feel some sort
of envy to the way how you plan ...
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Joe, I think I would battle it.
I would not be so certain. Mostly the SUV sized bass horns are notoriously bad sounding despite of the assurances of the system owners overwhelmed with so common in audio endowment effect. Not to mention that the Stag...
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[quote
user="kodomo"] Now, I am very happy down to 20hz. Do not get me
wrong, it was sounding fine and was blending well. Now, I have spacious sound
at the bass frequincies too and the sounds start and stop and die in the room
more naturally. Ove...
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Thanks, ferenc.
I went to Ocean Way Recording the Federated Mike mentioned but I did not see anything in there and I did not know that they have also an oceanwayaudio.com site. They call it the HR2 and it was built for them by Allen Sides, so ...
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Loudspeakers. For whomever who follows my dairies on this site and whoever has any real understanding what makes a horn-loaded loudspeaker to sound good it is know that Macondo Acoustic System is not juts the result of my DIY efforts or the John Hasq...
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[quote user="martinshorn"]The 75 cycle suckout
likely resonates very long after, guess u can hear the tale after the impulse.
I guess there must be an alisson effect around your seat of 3-4 feet (?) [/quote]
I was wondering about the 75Hz su...
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After a few agonizing days I think a have decided for a provisional
solution. Listening and thinking about
options on a table and my current desire to invest time and resources I went
with 6+2 direction.
I have order 4 separate relatively-sma...
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Yesterday I finalized everything, made the crossovers permanent,
arranged the cables, check the phases and levels per each channel and officially
declared to my wide that the listening room setting up is over. Then as the kids
went to bed I decide...
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All thinking about ULF are usually centered on 3 subjects:
drivers, topology and amplification. Even though these 3 subsets very much intertwined
I still would like to talk about it separately. We do presume that we have the proper
drivers for pro...
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Preamplifiers: keys to mystery – or…. how a preamp might be not only a load-driving gadget.
Years after years the preamplifiers are being a “terra incognito” of audio people. I admit that preamps are a subject of my persistent curiosity. I was alway...
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“Do you hear the people singLost in the valley of the night?It is the music of a peopleWho are climbing to the light.”Les Miserables
PREFACE
I would like do not shape this article as a review: I do not write “reviews” religiously and I have many re...
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I do not care about the room treatment at this point. The treatment
you use looks like very effective but it is very premature in my mind to think
about it. It is not to mention that the
contribution the treatment has to LF frequency response is ...
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