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Read the Post in new Window Read the Post in Threaded view  Post #3: Opinions on simple mid-bass horn for Altec 515 by RonyWeissman on 2008-02-08 
Browse the content of the threads in new Window  Thread: A right midbass solution for Altec 515G. in Horn-Loaded Speakers  21 Replies 
Can I have some opinions on a potential mid-bass driver for my Altec 515s, as pictured in the attachement?  What are the obvious or potential problems I should address?see attached photo: 120 Hz - @800 Hz.For the Altec 515 such a horn should be ...

Read the Post in new Window Read the Post in Threaded view  Post #5: Altec 515-G mid-bass horn follow-up by RonyWeissman on 2008-02-18 
Browse the content of the threads in new Window  Thread: A right midbass solution for Altec 515G. in Horn-Loaded Speakers  21 Replies 
Hi romy,  mine are the 515-G drivers.  I will be x-ing over at 600hz to Vitavox S2's (2nd order, yipes!).  The S2s are in 320hz LeCleach horns.  I was kind of hoping for just a general reply like when you guys look at a pictu...

Read the Post in new Window Read the Post in Threaded view  Post #1: 60hz, GPA-515-8ghp horn... by chaos on 2008-07-01 
Browse the content of the threads in new Window  Thread: 60hz, GPA-515-8ghp horn... in Horn-Loaded Speakers  32 Replies 
first post, hi everybody!plan to build a midbass horn around the gpa 515-8ghp, throat 9,9", mouth 24" x 39,37".945something sq inches.(excuse the strange numbers, metric units in europe)crossed at 500, s2 alu diaphr.(is it normal for the metals to ha...

Read the Post in new Window Read the Post in Threaded view  Post #4: A horn for Altec 515-8G by Romy the Cat on 2009-12-26 
Browse the content of the threads in new Window  Thread: X-mas list in Audio Discussions  16 Replies 
[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...

Read the Post in new Window Read the Post in Threaded view  Post #43: 515-G/Cyrille Audio by Marc HENRY on 2010-07-01 
Browse the content of the threads in new Window  Thread: The European Triode Festival’s horns in Horn-Loaded Speakers  57 Replies 
Of course i used the 515-G. this famous speaker suited very well to our bass horn...as any other bass horn ! the only problem with the 515-G was a upper end a bit...noisy with our 6db crossover.When we started with Cyrille-audio a project of a 15" fo...

Read the Post in new Window Read the Post in Threaded view  Post #44: Altec 515 hf 'noise' by skushino on 2010-07-01 
Browse the content of the threads in new Window  Thread: The European Triode Festival’s horns in Horn-Loaded Speakers  57 Replies 
Interesting experience - thanks for sharing.Just yesterday I posted about this topic:http://goodsoundclub.com/Forums/ShowPost.aspx?postID=13892#13892I will first use a 6dB/octave crossover, but may need to go to a higher order slope instead.  I'm cro...

Read the Post in new Window Read the Post in Threaded view  Post #43: 515-G/Cyrille Audio by Marc HENRY on 2010-07-01 
Browse the content of the threads in new Window  Thread: The European Triode Festival’s horns in Horn-Loaded Speakers  57 Replies 
Of course i used the 515-G. this famous speaker suited very well to our bass horn...as any other bass horn ! the only problem with the 515-G was a upper end a bit...noisy with our 6db crossover.When we started with Cyrille-audio a project of a 15" fo...

Read the Post in new Window Read the Post in Threaded view  Post #6: Melquiades & high cost as a limiting factor of design. by Romy the Cat on 2007-02-03 
Browse the content of the threads in new Window  Thread: I do not know what else are you looking. in Audio Discussions  12 Replies 
[quote user="RonyWeissman"] It will drive  either my Tannoy Gold's full-range, or my 3-way system (Altec 515/Vitavox S2/EV T-350 or JBL 2450).  I could also use it just to drive the Altec 515 and use my current 300B to drive the MF/HF of my...

Read the Post in new Window Read the Post in Threaded view  Post #2: Basshorn vs. non-Basshorn, further talk. by Romy the Cat on 2008-02-12 
Browse the content of the threads in new Window  Thread: About bass horns by Johan Dreyer in Horn-Loaded Speakers  5 Replies 
In the linked there above “Barn Conversion - James' Project” I have expressed my attitude toward low frequency bass. I certainly not “against” bass horn it but have “concerns”. The “open bottom” concept that I invented for myself is always make me to...

Read the Post in new Window Read the Post in Threaded view  Post #42: Upper bass driver by skushino on 2010-07-01 
Browse the content of the threads in new Window  Thread: The European Triode Festival’s horns in Horn-Loaded Speakers  57 Replies 
Marc Henry-In the 6moons write-up, you mentioned the Altec 515 re-issue not being satisfactory for your purposes on the Grande Castine horn.  I presume the specific 515 variant you used was the 'g' type (designed for horn loading) rather than 515'b' ...

Read the Post in new Window Read the Post in Threaded view  Post #3: Alnico vs. Ferrite vs. throat vs. whatever. by Romy the Cat on 2008-07-01 
Browse the content of the threads in new Window  Thread: 60hz, GPA-515-8ghp horn... in Horn-Loaded Speakers  32 Replies 
Klaus, The 515-8GPH were in same scale as the 515G with slightly above 35Hz resonance frequency and 103 sensitivity -  a very good candidate for 60Hz horn. The 10” throat? No bolls to go for 9”, how about 8”?  I’m just kidding. The throat ...

Read the Post in new Window Read the Post in Threaded view  Post #1: 60hz, GPA-515-8ghp horn... by chaos on 2008-07-01 
Browse the content of the threads in new Window  Thread: 60hz, GPA-515-8ghp horn... in Horn-Loaded Speakers  32 Replies 
first post, hi everybody!plan to build a midbass horn around the gpa 515-8ghp, throat 9,9", mouth 24" x 39,37".945something sq inches.(excuse the strange numbers, metric units in europe)crossed at 500, s2 alu diaphr.(is it normal for the metals to ha...

Read the Post in new Window Read the Post in Threaded view  Post #3: Opinions on simple mid-bass horn for Altec 515 by RonyWeissman on 2008-02-08 
Browse the content of the threads in new Window  Thread: A right midbass solution for Altec 515G. in Horn-Loaded Speakers  21 Replies 
Can I have some opinions on a potential mid-bass driver for my Altec 515s, as pictured in the attachement?  What are the obvious or potential problems I should address?see attached photo: 120 Hz - @800 Hz.For the Altec 515 such a horn should be ...

Read the Post in new Window Read the Post in Threaded view  Post #15: Horn math... by chaos on 2008-07-04 
Browse the content of the threads in new Window  Thread: 60hz, GPA-515-8ghp horn... in Horn-Loaded Speakers  32 Replies 
it would be nice if somebody who knows a thing or two about mathlab and pspice would develop a accurate model. in pspice one could include the crossover in the simulations....when i tried your recommendation with s2 and 3uF cap my "basshorn" ref...

Read the Post in new Window Read the Post in Threaded view  Post #1: Vintage Altec drivers / horns lingo. by Romy the Cat on 2005-04-24 
Browse the content of the threads in new Window  Thread: Vintage Altec drivers / horns lingo. in Horn-Loaded Speakers  0 Replies 
LOW FREQUENCY DIRECT RADIATOR DRIVERS 411A –18Hz, 93dB, sealed box414A - 99dB, 30Hz, Alnico, cloth416B – Alnico, 97dB, 25Hz, cloth416C – 16” version of above with Ferrite416Z - 12" version417C – 100dB, 69Hz, Alnico, 1.3T, 12”418B – 100dB, 55Hz, Alni...

Read the Post in new Window Read the Post in Threaded view  Post #4: ok, me too. by RonyWeissman on 2007-02-03 
Browse the content of the threads in new Window  Thread: I do not know what else are you looking. in Audio Discussions  12 Replies 
I'm going to try and build a Melquiades type amplifier (with some help from friends) following the advice given above  to make it as simple as possible.  I could spend more money for "different" transformer, but I will ask you for advice on...

Read the Post in new Window Read the Post in Threaded view  Post #4: S2 dia. alnico.. by chaos on 2008-07-01 
Browse the content of the threads in new Window  Thread: 60hz, GPA-515-8ghp horn... in Horn-Loaded Speakers  32 Replies 
[quote user="Romy the Cat"]Hi Romy! The 515-8GPH were in same scale as the 515G with slightly above 35Hz resonance frequency and 103 sensitivity -  a very good candidate for 60Hz horn. The 10” throat? No bolls to go for 9”, how about 8”?  ...

Read the Post in new Window Read the Post in Threaded view  Post #17: The Big Throat Approach and the Wide Horns by Romy the Cat on 2008-06-16 
Browse the content of the threads in new Window  Thread: The European Triode Festival’s horns in Horn-Loaded Speakers  57 Replies 
[quote user="nl"] Within that horn-loaded range, the 210/515 type combo does reasonably well, and produces rather more inspirational midbass than most direct-radiator type strategies. There is a reason why these designs persisted for roughly forty ye...

Read the Post in new Window Read the Post in Threaded view  Post #4: How the given implementation might or might not ... by Romy the Cat on 2008-02-09 
Browse the content of the threads in new Window  Thread: A right midbass solution for Altec 515G. in Horn-Loaded Speakers  21 Replies 
Rony, I am not exactly understand what you are trying to do and what kind of cabinet are you trying to attach in the back of that horn. Perhaps I misread you. There are two types of Altecs 515: the G-like and B-like – they are very different type o...

Read the Post in new Window Read the Post in Threaded view  Post #106: Orientation... by chaos on 2008-07-28 
Browse the content of the threads in new Window  Thread: Jessie Dazzle Project in Horn-Loaded Speakers  172 Replies 
hi jezzie!i was planning to to make most of the fibers 90° to the axis of the horn, have some time to decide(but not too much, the 515´s arrived at vienna-airport:-)what to you think of using biaxial inlays(fabric visible, then -45°/+45° and the...

Read the Post in new Window Read the Post in Threaded view  Post #81: CH Audio Design by skushino on 2009-08-29 
Browse the content of the threads in new Window  Thread: Midbass Horns and Real Estate. in Horn-Loaded Speakers  247 Replies 
From a company called CH Audio Design in Florida:http://chaudioroom.com/Sculpture.htmlCH Audio Design Sculptures Loudspeakers, with Altec 288 high frequency and 515 low frequency drivers.A fully horn loaded two way system. Using the ceiling and adjac...

Read the Post in new Window Read the Post in Threaded view  Post #1: X-mas list by RonyWeissman on 2009-12-24 
Browse the content of the threads in new Window  Thread: X-mas list in Audio Discussions  16 Replies 
Wish list;A mid-bass horn for my Altec 515-8G drivers operating from 100-600hz (it seems only Santa can make this for me)a new CD-player as my STuder A730 is kapputa collection of bruckner LPs (i don't have any!)a new listening chair to replace my IK...

Read the Post in new Window Read the Post in Threaded view  Post #26: R-2R DAC by LogicAudio on 2016-06-01 
Browse the content of the threads in new Window  Thread: Really Expensive DACs? in Didital Things  29 Replies 
[quote user="xandcg"]Paul S,Seems most of Lampizator models has "R2R Ladder" as a option now, as used to be on the Level 6: http://lampizator.eu/Fikus/PRODUCTS.html[/quote]I've heard better sound from R-2R converters than Delta Sigma. Audio-GD Master...

Read the Post in new Window Read the Post in Threaded view  Post #6: Wood horn finishing by RonyWeissman on 2010-04-04 
Browse the content of the threads in new Window  Thread: A right midbass solution for Altec 515G. in Horn-Loaded Speakers  21 Replies 
Hi Romy,If you have a moment between setting up your gear in new room, can you point me to the thread where you discuss suggested wood horn finishing techniques? I can't find it.I am hopefully on verge of placing order for my first mid-bass horn for ...

Read the Post in new Window Read the Post in Threaded view  Post #1: 4-sale items by RonyWeissman on 2012-05-29 
Browse the content of the threads in new Window  Thread: 4-sale items in Horn-Loaded Speakers  2 Replies 
Hi,If anyone is interested I am selling :- Vitavox S-2 pair, excellent condition, Professional cleaned and magnets recharged- Altec 515-8G pair, also good condition- EV T-350 pair 8ohm, good condition alsoShoot me an e-mail for pictures and prices.  ...

Read the Post in new Window Read the Post in Threaded view  Post #44: GU81M by haralanov on 2011-04-16 
Browse the content of the threads in new Window  Thread: How to get a LOT of SET power. in Audio Discussions  106 Replies 
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...

Read the Post in new Window Read the Post in Threaded view  Post #11: AK150 vs. 151, and the Voice of God by Paul S on 2011-07-01 
Browse the content of the threads in new Window  Thread: "O Vitavox, Vitavox! Wherefore art thou Vitavox?" in Horn-Loaded Speakers  22 Replies 
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...

Read the Post in new Window Read the Post in Threaded view  Post #111: Over/Under on X/O by Paul S on 2021-11-25 
Browse the content of the threads in new Window  Thread: Remedies the Beauty in Playback Listening  293 Replies 
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...

Read the Post in new Window Read the Post in Threaded view  Post #82: I do not understand what CH Audio does. by Romy the Cat on 2009-08-29 
Browse the content of the threads in new Window  Thread: Midbass Horns and Real Estate. in Horn-Loaded Speakers  247 Replies 
Skushino, Thanks for pointing it out. Unfortunately with all my desire to understand what CH Audio did turn to fiasco and I absolutely do not understand this LF section. Is it a duplex of 515 drivers with one loaded in this front shallow front horn a...

Read the Post in new Window Read the Post in Threaded view  Post #7: I'll see if tribute guy replies by RonyWeissman on 2007-02-04 
Browse the content of the threads in new Window  Thread: I do not know what else are you looking. in Audio Discussions  12 Replies 
 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 2205 (200w/channel). Otherwise I am a...
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