MartinV56

Diseño JBL 4550 BLR [img]http://img128.imageshack.us/img128/9594/4530ath4.jpg[/img]

Estoy pensando en probar en los bajos un Folded Horn o un Back Rear Load Horn, estoy mirando los Klipsch, Frazier Dixieland como opciones de Folded Horn y el JBL 4530 como BLR horn, hay mucha tela para cortar, ustedes que opinan sobre el particular, bienvenidas sus sugerencias, experiencias con ambos sitemas, tengo unos BLR fostex 126E pero debo integar el bass horn que adopte con el tractrix horn de medios. De ahí las dudas. Actualmente uso sealed enclosure con un Tru-sonic de 15" y medido esta en 30Hz

Creo que el punto es porqué muchos diseñadores no les gusta UL en la configuración PP Cita de Bob Carver sobre el particular [color="#CACACA"][size="2"][color="black"][font="Arial"][size="2"]It was a hot mid-summer's night and I was in Chicago at the consumer electronics show.[/size][/font][/color][font="Arial"] [/font][color="black"][font="Arial"][size="2"]I was in my booth pitching my wares, a new amp and preamp, and it was hot inside. Not the amplifier, but the convention floor, and I was getting thirsty. I wanted something cold to drink, so I decided to sneak away from my booth for a moment to get a coke. As I was sneaking, a colleague happened to walk by and said, " Hey Bob, have you seen Stu Hegeman's new preamp?"[/size][/font][/color][font="Arial"] [/font][color="black"][font="Arial"][size="2"]I found myself getting excited, as Stewart Hegeman, the master designer of so many classic vacuum tube amplifiers and my very own hero, was here! Stu Hegeman was a true genius, having designed the Citation I, II, probably the III and countless other amplifiers for Sidney Harmon and forLafayette.[/size][/font][/color] [color="black"][font="Arial"][size="2"]I found him in his booth; we began talking about preamps and amplifiers, ultimately leading to a quiet corner in a close-by restaurant. Very close, as it was part of the convention itself. I finally got my coke. I could not believe I was in the presence of THE Stewart Hegeman, and he was talking to ME! We talked and talked about big solid state amps, tube preamps, solid state preamps, loudspeakers, ionic tweeters, recording lathes and finally tube power amps. And what a scientific talk it was! As the hours went by, he admitted to having been caught up in the ultra-linear fad of his day, that it was the biggest blunder of his career, and he did it only once and would NEVER design an amp with an ultra-linear output stage ever again. [/size][/font][/color][font="Arial"] [/font][color="black"][font="Arial"][size="2"]And he didn't. The Citation V was pure pentode, as was the subsequent Lafayette 550 and everything else he designed from then on. I asked why. He explained that when the plate pulls the top of the output transformer winding towards ground, the ultra-linear tap pushes the screen grid so low that it renders the tube unable to drive difficult loads. In addition, he pointed out that the normal idle potential on the screen grid regularly exceeded a safe voltage, often causing output tubes to blow up. The tube manufacturers hated it, but had to go along or lose market share, and so changed the specification for screen voltage in order to allow ultra-linear output stages. I can’t help but wonder if they REALLY changed the tube design, or simply changed the screen voltage specification. This conversation led to me confessing that I had always wanted to build a big tube amp that was painted the same color as my first car, a '49 metallic burgundy Mercury automobile. So I started on it. And here it is![/size][/font][/color][/size][/color] [font="Arial"] [/font] [font="Arial"][size="2"]Y esto [/size][/font][font="Arial"][size="2"]dice la gente de Audionote frente al UL triodo.[/size][/font] [font="Arial"] [/font] [url="http://www.audionotekits.com/agrove_l4el34pp.html"]http://www.audionote...e_l4el34pp.html[/url] Saquen sus conclusiones [font="Arial"] [/font]

[quote name='Stereo Vintage' date='25 October 2011 - 08:29 PM' timestamp='1319592545' post='92963'] Ahh la belleza de otros tiempos no creo que quepan o se le saquen provecho en un modesto living de DFL 2 quedo con la duda si Piden mucho estos parlantes, que Ohms necesita, 2 [/quote] [url="http://www.lansingheritage.org/images/jbl/catalogs/1969-home/page05.jpg"]http://www.lansingheritage.org/images/jbl/catalogs/1969-home/page05.jpg[/url] [url="http://www.lansingheritage.org/images/jbl/catalogs/1969-home/page31.jpg"]http://www.lansingheritage.org/images/jbl/catalogs/1969-home/page31.jpg[/url] [url="http://www.lansingheritage.org/images/jbl/catalogs/1969-home/page24.jpg"]http://www.lansingheritage.org/images/jbl/catalogs/1969-home/page24.jpg[/url] [url="http://www.lansingheritage.org/images/jbl/catalogs/1969-home/page26.jpg"]http://www.lansingheritage.org/images/jbl/catalogs/1969-home/page26.jpg[/url]

y aquí unas JBL Hartsfield [url="http://www.hifichile.cl/index.php?/topic/1765-jbl-hartsfield/page__p__33325__hl__hartsfield__fromsearch__1#entry33325"]http://www.hifichile.cl/index.php?/topic/1765-jbl-hartsfield/page__p__33325__hl__hartsfield__fromsearch__1#entry33325[/url] audiófilos bogotanos, fans de JBL, las Apollo despertaron este post

[img]http://img11.imageshack.us/img11/967/p1030599j.jpg[/img] Unas hermosas JBL C38 con el woofer D130

[quote name='Voh Poh' date='25 October 2011 - 05:49 PM' timestamp='1319582955' post='92940'] Sobre el precio ni idea, pero sí puedo decir que las escuché (No me acuerdo si fue con el Philips o el Revox, puede que los dos) y son realmente filete filete, suenan La Raja. Son un exponente de lo que es Vintage con mayúscula. [/quote] Vintage No, ALTA FIDELIDAD

OK, gracias,

Las Están vendiendo [url="http://articulo.mercadolibre.cl/MLC-37387602-una-vez-en-la-vida-jbl-apollo-s7-c51-inmaculadas-_JM"]http://articulo.mercadolibre.cl/MLC-37387602-una-vez-en-la-vida-jbl-apollo-s7-c51-inmaculadas-_JM[/url] [media]http://www.youtube.com/watch?v=AblGbdCaCgc[/media]

Me iría por este [url="http://articulo.mercadolibre.cl/MLC-37093796-receiver-sansui-9090db-125-watt-rms-lo-mejor-de-sansui-_JM"]http://articulo.mercadolibre.cl/MLC-37093796-receiver-sansui-9090db-125-watt-rms-lo-mejor-de-sansui-_JM[/url]

Bienvenido! Jensen [url="http://www.usspeaker.com/jensen%20index-1.htm"]http://www.usspeaker.com/jensen%20index-1.htm[/url] Eminence [url="http://www.eminence.com/"]http://www.eminence.com/[/url] Celestion [url="http://professional.celestion.com/guitar/"]http://professional.celestion.com/guitar/[/url]

http://www.bobsamerica.com/bozakcompanyhistory.html http://en.wikipedia.org/wiki/Rudy_Bozak Paul W Klipsch y Rudy Bozak http://www.bobsamerica.com/bozak.html http://itishifi.blogspot.com/2010/03/rudy-bozak-loudspeakers-1963-1979.html Otro de los grandes

y los cortes precisos, suerte

La experiencia me indica que lo mejor en tri-amplificación es no mezclar, me explico, si es clase A todo clase A si es AB, todo AB, y ponerle atención a las potencias, si tenés 20 watts en el bajo, los medios serán de la mitad 10o menos y los altos 5 watts o menos , suerte con el proyecto.

Y cómo piensas tri-amplificar?

[quote name='Robert de Saint-Loup' date='24 October 2011 - 12:52 PM' timestamp='1319478768' post='92678'] Qué horny! [/quote] Buen apunte, RSL, por suerte Tannoy es referente en el tema Horns

Cuando vea configuraciones como esta en las revistas creeré en las mismas [img]http://img17.imageshack.us/img17/8059/vyl7rb.jpg[/img]

http://www.ring-audio.com/products/horn-loudspeaker/

Para Lag

[quote name='pacifyer' date='24 October 2011 - 09:24 AM' timestamp='1319466264' post='92614'] Yo creo que si es posible comprarse un equipo de audio vintage QUE ERA HI END CUANDO ERA NUEVO, pero a un precio rebajado por el tiempo, y por tanto accesible, la cosa funciona, y es competidor serio, luca contra luca, de equipos más nuevos. Pero cuidado, que a veces lo que se venden son equipos antiguos que eran "de serie", que nunca fueron hi end. Y esos no valen nada... [/quote] Completamente de acuerdo con este comentario y agrego frente a equipos entry level vintage o de serie como dijó Lag frente a entry level o serie actual sólo basta ver el diseño, circuito material y componentes utilizados en el amplificador vintage frente a los nuevos no hay punto de comparación, estaban hechos bajo la idea que eran para toda la vida.

http://test.audioher...tory_Frame.html http://test.audioher...s/EY_Frame.html http://test.audioher...g/LM_Frame.html http://test.audioher...g/AL_Frame.html http://test.audioher...L/FJ_Frame.html http://test.audioher.../JT1_Frame.html http://test.audioher...n/TM_Frame.html http://test.audioher...face_Frame.html http://test.audioher...g/JL_Frame.html