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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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I too want a monitor speaker to play with, especially for amplifier experimentation.I put another 4" Fostex in a sealed "box" (globe actually) and crossed it over at 150hz to one SS 25w/8565 on the side. Wishful thinking? -Yes.About 88-90dB sensitive...
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Hi Pete,You have a similar size room to me. I'd rather like a large 4 or 5 way setup but don't have the space. I use the S2's (in barbaric stylee) in damped RH330's. Beneath them I use a frontloaded (folded) bass horn Vitavox made called the Oracle. ...
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Nice post Romy, you're probably right, I can't say since I've never listened to a pair of speakers that really told me "what can be done". I've always owned and listened to speakers that are commercially made, and I've had to choose among the ones th...
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Here are a few answers1. a, 84 Hz b, 4.8 inches square c, Hyperbolic exponential, T 0.8 1/2 Pi d, none so far on upper bass horn. S2 and 2405 have series capacitors feeding them. e, Eminence Kappa 12. 4. Both tweeter and S2 ca...
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I was there and heard it a while and then came back the next day to see if what I heard was true... it was.I talked with Allen Sides who was there showing his speakers and having a good time. It is a 3 way speaker, It has a 1" JBL compression driver...
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I wonder if these guys were associated with a group I hung around with in Venice, MANY years ago, back when the old pier and "ballroom" were still operational, and they were recording rock groups in the ballroom and also doing "demos" in a +/- "garag...
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The units that i put in my pictures JBL AND ALTEC A7 both designs have a resonance just like all wood that you would rap your nuckels on even 2 inch thick plywood will resonate at a given frequency, that goes for glass, cement, metal, they all do...
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The more msaudio trying to “criticizes” my projects and expose his “rational” the more I feel a need not to ignore but actually to laugh. When some people without a sense of perspective or reality run in stadium then they might feel that they are ahe...
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The direction of lansing was the main factor of speakers not W.E. Just look at the phase plug on the W.E HF drivers and look at the phase plug on the lansing Hf drivers this is were it all went down hill. Your mid and Hf drivers from lansing took the...
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Jbl came out with a new type of horn design a few year back and it looked like it had alot of good features. The top wall of the horn was curved up while the bottom wall was curved up then down very steep and it was still a 93-46 degree horn. You cou...
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Moreart Most people on this site only badmouth things they don't understand. From what i have read the last few years on romy's site, there is a leader and a bunch of follower's that have no clue of audio basic's in sound reproduction. The leader j...
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Several years ago I down loaded a print from a site long gone, only to find a modified version of it on Jeff Robinsons site. The print was for a folded horn of manifold sections loaded with a 12" speaker only , and the text is in Hungarian. The print...
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[quote user="Horn Savant"]
audiofilofine wrote: Horn Savant wrote:Final exit ~ 1M x 2M crn loaded (yielding 1/4 given mouth cut-off frequency)With 416's bass can be devastatingly spectacular !The general public have no concept of the efficacy of la...
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As the builder behind these horns, I can answer some of your questions. It's true, I was primarily focused on the woodworking/building side, and now I'm experimenting with amplification and crossovers. I can't speak authoritatively on those subjects...
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I have to admit I have no idea and did not experiment with matching horn loaded tweeter to big ,direct radiating "extended range' MF channel. I'm not sure it's doable. I was speculating on the reasons why the owner of Moscow instalation switched from...
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At last weekend's HiFi Wigwam Scalford show several members brought together various elements to make this 5 way speaker system.[IMG]http://i254.photobucket.com/albums/hh107/pure_sound/communalsystem.jpg[/IMG]Picture courtesy of Alfie29021. Raal Amor...
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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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[quote user="mats"]Good start Dan!The JBL phenolic 2" driver is 2482.I would lower the crossover point as far as you dare, 300Hz or so.Now the 2226 will do what they are pretty good at.Later you will likely want to filter the 2445 around 2k.A 600Hz h...
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Hi Jorge, Thank you for the response. Re: cable, yes I've been too lazy to install binding posts in the back of the cabinet. I have no good reason, necessarily why I am crossing the 250 Hz horn at 1k. I posted my measurement above, but of course this...
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Last time we wrote you thought I should focus less on tweeters and more on midbass.I am not done yet, but I have found a very nice midbass solution. Somewhat unorthodox, maybe.I have come to love police sirens! Without having A/B compared it to a pai...
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I built a prototype of a Avantgarde Trio in newspaper and tape, with the Beyma CP380/M, Community M200, and the Fane S 8M, and I also used a Behringer CX3400 and a 45 tube amp. CX3400 is soon replaced by digital active XO.Paper may have made the midb...
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There are a few at least theoretical backdraws for the Array in my view.Of course having a lot of different drivers playing at the same frequency implies that all of them should work in perfect unison, if one starts lagging a little bit it will mess...
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It is a shame that I keep finding threads about a 300Hz compression driver channel, that ends abruptly. I have been trying with a not-so-exact Goto S-150 replica (~1.7m deep, 75cm diameter mouth), and I know of another fellow in Sweden who tried the ...
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Romy,To clear up a few things about the Kilimanjaro RCA1428 clones.The B&C DCM50 is a modern, neodymium clone/copy of the RCA MI-1428B. It was designed and built by B&C in Italy after Bill Woods of AHhorns talked the CEO into it. The DCM50 is...
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Rakesh, I do not know a lot about the audio trivia. What I do know that in the world I live and I understand the tractrix curve introduced Bruce Edgar. I thought that tractrix curve was described by French. The tractrix curve is twisted and not strai...
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I have seen that people online react surprisingly to my post above. Hey are accustom that I am hyper-demanding and tough for production of DIY speaker attempts but above I suddenly proposed to relatively mediocre speaker to become the become th...
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[quote user="oxric"]
Well Jessie, it looks like your wish has come true. The Vitavox site went live at 9 a.m. this morning. It has very interesting implications for the compression drivers landscape in that it suddenly makes buying a hi...
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Hi Romy,Its an Altec 416-8A driver in a ~100 Hz exponential horn, Jbl 2441 in 350Hz tractix, Aurum Cantus G1 tweeter and Eminence Definimax 4012 HO in ~30Hz Tapped horn.I just hooked it up and the highs are promising but I thought the lower end (200 ...
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Personal, I do not use WE555 and I do not (would not) use the WE555-type horns. Hypothetically if one would go for 4-way system with WE555-like driver in upperbass then it is valid solution, not something that I appreciate but valid. The WE555 is ve...
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[quote user="zako"]Recardo,,,,its obvious you dont know how to read...soon all schools will also drop cursive writeing,,,how will the kids place the signature on a document,,,print it? Your luckey a didnt write in russion,,,offensive would be if i ...
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