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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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Well, the Vitavox is also a "paper driver" that has needs like the Tannoy (unless it is the "horn version"...), meaning the size and nature of the enclosure will affect the Vitavox sound, as well. I always thought the Altec 515 Bs were OK up to 500 H...
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I am out the door, just wanted to mention, it is my understanding that only one of these was meant for a horn; the other is a direct driver, like the original 515.I assume the celebrated "slotted" Vitavox horn is not the same as the one and only Vita...
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N-set, a friend of mine built an amp with this monstrous USSR tube. It has 3 stages and the GU81M is driven by 6C33C.Within context of driving mid or high sensitivity bass drivers, this is all you need. In comparison, his previous SET with 6C33C soun...
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Of course i am referring only to the horn part of a 210-type enclosure. Below the horn cutoff, perhaps around 70hz for the 210, the remainder is filled in with a wooly bass-reflex peak, which gives these boxes their characteristic fluffy, indistinct,...
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Yes, too low efficiency, even worse than Altec 515, (when loaded with small throat, in proper FLH, NOT A7 type "horn" which disqualified it also for my usage... I don't know how "colored" Tannoy would sound with properly designed...
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[quote user="msaudio"]49Hz To 52Hz will be your peak, so the best you could hope for would be 3 hz below that flat with a perfect tuning of your length of your horn and back chamber of your box housing your woofers. If you shoot for the free air low ...
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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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[quote user="noviygera"]p.s from my experience of having a 500 sq. ft. listening room with 7 ft. ceiling and having two 18" woofers in a infinite baffle configuration, it is not enough to pressurize the room. I am talking about low and medium listeni...
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Romy, what exactly was bad, and how?Honestly, my knowlwedge and objectives were in infancy back then. Also, it's been so long that my "memory" is probably crowded with parasitic ideas passing themselves off as memories. But I remember the 808 drive...
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[quote user="Romy the Cat"]
Were the quotes above no enough for anyone who is familiar with the subject?Rgs,Romy[/quote] Absolutely inadequate for desiphering the subjective sound quality yes - all we can deduce is that the system has a maximum s...
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49Hz To 52Hz will be your peak, so the best you could hope for would be 3 hz below that flat with a perfect tuning of your length of your horn and back chamber of your box housing your woofers. If you shoot for the free air low res of your design, of...
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[quote user="Ronnie"]These millimeters will be fun to play with.[/quote]Ronnie, I know exactly how it sounds. As soon Sound hits a range of upperbass then the system sounds like somebody attached to the driver some kind of trammel. it feels as someon...
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[quote user="dazzdax"] Sakuma's idiosyncratic and esoteric way of thinking (he believes for example that tubes have a "soul") is not to everyone's liking. He is projecting his mind into a sort of tone control. At least for him this tone control bring...
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Hello Romy,
I understand the difference between the kind of "basshorn" pictured here and the proper compression-horn that you use. It is true that many DIY-types like to make basshorns in their garage without much thought to technical consideratio...
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Romy
Your rules say no direct answers so forgive me this one.
My horn is a true 21Hz horn.If you want to do the calcs:(More or less) Throat 6264 square cm.Mouth 48312 cmsq.M or Q 0.7 depth 3m.Quarter space loading.It does not quite make 21Hz.-3...
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"Do not use plastic caps ... but go for a tandem of electrolytics Nichicons with active biasing."
Hi Romy,
Please excuse my ignorance. Can you please clarify what you mean by "active biasing" -- in relation to the caps?
I'm thinking to get...
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[quote user="Paul S"]Romy, what exactly was bad, and how?Honestly, my knowlwedge and objectives were in infancy back then. Also, it's been so long that my "memory" is probably crowded with parasitic ideas passing themselves off as memories. But I r...
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[quote user="Merlin"] Absolutely inadequate for desiphering the subjective sound quality yes - all we can deduce is that the system has a maximum sensitivity of 98db/w at best, and quite possibly less. As do many fine loudspeaker systems.
All louds...
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[quote user="RonyWeissman"]A mid-bass horn for my Altec 515-8G drivers operating from 100-600hz [/quote]
Rony, I think your wish to have mid-bass horn with 515G is a bit faulty. A mid-bass horn for 515G shall be 50-600 Hz. Let me to explain. T...
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[quote user="nl"] However, these sorts of basshorns with twin 15" drivers and a very large mouth (larger than the cones of the drivers) have a long history. The Altec 210 cabinet, as used in the Altec A2 systems with two 515-type woofers, is a prime ...
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[quote user="Romy the Cat"] noviygera wrote:p.s from my experience of having a 500 sq. ft. listening room with 7 ft. ceiling and having two 18" woofers in a infinite baffle configuration, it is not enough to pressurize the room. I am talking about lo...
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One of the challenges I see for my midbass horns is to minimize hf output. The goal is to operate the horn in a bandwidth where it can cross to the higher horns, and have each horn function in their best sounding manner. My drivers are Altec 515-16...
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[quote user="RonyWeissman"] I have the 515-Gs If I remember correctly, and I am trying to find suggestions on what is proper horn-loaded cabinet still. And I agree my tannoy golds so far have worked best with early 70's mcintosh 22...
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[quote user="be"] Instead of defining the ULF range from the reproduced instruments, it is much smarter to do it based on the first resonance frequency of the listening room, because the frequency response of a closed room has a 12dB/oct rise in ...
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Ronny, it is funny because I was juts about to carve my further observations about the Sound of my monitors. Last night I was listening Rigoletto by Callas and Gobbi on my monitor. I come to an interesting observation that I would like Monitors...
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.…as everything was discussed here before.[quote user="chaos"] …when i tried your recommendation with s2 and 3uF cap my "basshorn" refused to roll of;-) [/quote]
This is normal, I have written about it many times. Those large bass drivers have a lot...
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We have a nice storm in New England, in Boston we call it Nor'easter. The snow is falling ~ 2 inches per hour and they promise 2 feet before the end of the show. My town is under snow emergency, the wind up to 50m/h – the whole shabam!
I am ...
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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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I have order 4cu feet sealed enclosure for two 15 drivers. It
is relatively small box but I need to hit minus 6-8 dB at 50Hz. The collection
of the drivers I have would be following: Vitavox AK51 and 15/40, Altec 416B
and 515B. I like Vitavox tone...
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