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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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Again, moving the speakers last night I felt that I really would like to move the speakers closer to the mid of the room – the further the speakers from the back wall the more interesting sound. There is another “again” in what I felt last night. I t...
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Oh, God, what the measurement microphone does at the mouth
of the horn? Is it where you measure your responses? I hope not. Also, even over the bad sound of YouTube
video it is very clear at the example you provided us that there is very shallow
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Hello Dan,Love how you pass that cable through the port, I used to do that too...long time ago.Why are you crossing your 250hz horn all the way up to 1 khz?The 2445 should be able to go much lower. Have you measured the response you are getting from...
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Ronnie,
The stuffing the back chamber in upper bass horn and stuffing a sealed enclosure have totally different purposes. In the firs case we need to decrease volume of the chamber in the second to increase it. The polyurethane foam spray is not foa...
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[quote user="Wojtek"] Roman, could you (or enybody ) elaborate a little bit on JBL L8 and its application ? Not so much sensible info on the net besides that its a fullrange usefull in 40Hz-8kHz. [/quote]I do not know, how can I elaborate if I never ...
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This is a guy from Japan and he made his 4 ways GOTO drivers. What I like that he made midbass horns with smaller throat then Johan Dreyer. This Japanise guy has tall room and he made his horns to have smaller throat and to have a curve up – that is ...
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[quote user="Dresden"] ... two J-shaped horns back-to-back, as though it were a mirror image. --the drivers do NOT share the same throat, but instead each driver loads its own horn. I'm sure the 'picture' is now clear, correct?...If...
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I concur the objective to acquire performance in the desired frequency range must predominate most other considerations of design.My objective for the design of the mid/upper bass horn is to attain effortless, smooth, real-world horn-loaded response ...
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[quote]That is a bold waste of
speaker’s surface for a small result.[/quote]Yeah, but plywood is cheap and the result is audibly noticeable. Baffle extensions were recommended for all of the Altec VOT cabinets too. Make a big improvement for cheap ...
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It looks like the Cogent boys came up with a new design. It is good that they are keep looking, even thogh they unfortunately are restricted with their desire to stretch the use of their drivers over too wide bandwidth….
The new Cogent setup lo...
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I got yesterday the new Macondo Frame.
As you see I went for a monopod, the strong one and I love a lot what how it turned out to be. What the horns are stuffed into the frame then the frame is unusable at all. The footprint of the frame is very sm...
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The systems I've heard with steep slopes (only 4th or 8th order) sound hard and unnatural to me. Admittedly these are on everymans drivers - the sort of thing we all can buy and deploy.Several digital X/O users I've talked too all seem to gravitate t...
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We understand that Charlus’ selection of drivers are not a selection yet but some kind of very preliminary idea of the drivers that he feels like he like. I said “he feels like he like” not accidently. I do not think Charlus, or anybody else in h...
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[quote user="Murataltuev"] anthony wrote:EDIT: Not sure we are on the same page regarding frequency range for this hornWell, I don't have any other options.My 42Hz upper bass horn has flat frequency response in 70-300Hz range and -5db in 60-400Hz, s...
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[quote user="MINGSU"]You can hear a full 4 way GOTO in this event next month. Come down, stop by, enjoy and judge yourself, in person.
http://www.capitalaudiofest.com/ July 8-10 in Rockville, MD.[/quote]
It looks like out friend M...
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[quote user="Romy the Cat"]I still feel that a complementary upper bass channel is begging to be used in this system. [/quote]Yes, Romy, the upperbass channel is absolute mandatory. My comments were only about the particular driver, nothing more than...
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I am not laughing. Just the other day I had the upper bass a little extra prominent, and midrange was gently tapering off into the highs. Some would say it was rolled off and flat, but when I played two Mahler 1's and the 9th, I enjoyed him like ne...
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Romy,
Have you considered replacing the cover on the tail of your Upper-Bass horn?
...With a large-diameter circular cover, made from a more resonant material (when I say large diameter, I mean quite a bit larger than the diameter of the rear c...
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Hello friends,Romy wrote (in the context of the MingSu/Jackson/Goto upper-mid bass horn thread):"...Yep, I would hang the midbass above and as you said put an upperbass on a floor to anchor the center image. Something similar to what Jessie is doing....
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Romy,thank you for sharing thoughts on the 80Hz horn, giving honest opinion. So if the 80Hz horns are flawed design, I do not want to waste time to improve them. By the way, they are loaded with EVM15B drivers. I am now a bit perplexed on which rout...
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If I succeed to make my midbass horn at attic then I will face another problem that I do not know how to address at this point. The horns will be powered from Melquiades bass channels – it means it will use a good 70 feet speaker cable. If I go with ...
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[quote user="CO"] Ive conducted some test with the smaller drivers because i wanted to know if i could build a compact high quality setup to replace my current fairly large speakers. It doesnt look possible though, mainly because (as you say )the Upp...
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If you know how in some optical systems imagery get destroyed when an aperture getting closed to F64 or even smaller, then you understand what happens in compression driver when frequency get higher and spaces smaller. Yes, the proximity of wavelengt...
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Those horns are in Connecticut’s 7th exit in a home of guy who has a privet river with own waterfall at his backyard. He could put 20Hz straight horn in his closet if he would know how…. :-)
Anyhow, I do not what to dive into this discussion as it w...
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Thank you Romy,
<<The multiamping with Super Melquiades was made with intend to optimize the output transformers and to eliminate the interference between the inductance of the upper bass driver’s coil and the MF driver. I still use the speake...
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Mouth size is the one dimension I've struggled with most.As of the present time, I've deduced to use a mouth size that may prevent me from achieving the target frequency of 40Hz, and instead produce a frequency of about 55Hz or even 60Hz. I can...
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Wojtek wrote : "...haven't seen any other fane 8M for sale in months anywhere..." I just checked and found a pair of 8Ms on eBay... item numbers : 310021284113 And : 310023127933 (I hate it when a pair is broken up over two separate listings!). You s...
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This is our first offering; we are indeed working on another two higher priced models. One will have an additional channel on top, the other one will be front horn loaded down to 40 hz. Optional finish and colors, both for horns and supports, a...
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[quote user="haralanov"]Romy, the main driver in this acoustic system has nothing to do with the funny Lowthers. It is very high class field coil speaker unit made by Oleg Rullit. The owner of the system has tried the highest class of the Feastrex li...
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Paul S:DSET is a very high power solution to a question that I only have a very primitive understanding of. It is not right for me at this time.I would prefer if the model etc. of my speakers not be involved in this discussion. I know I am committing...
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