vintage Hi-Fi:Acoustic Research,Advent,Yamaha NS-250E,Dynaco

andreitentean · Conectat la: 15 Mar 2010 Mesaje: 87 Locatie: Bucuresti

Vand urmatoarele perechi de boxe vintage hi-fi :
1. Yamaha NS-250E --> 850 RON
2. Advent Large --> 3500 RON 4 buc (duoble stacked)
3. Acoustic Research 2ax --> 850 Euro
4. Dynaca A-10 bookshelf --> 600 RON
5. Dynaco A-25 bookshelf mediu --> 950 RON
6. KLH model 32 --> 430 RON
7. Unitra-Tonsil nou restaurate, totul nou --> 3500 RON
8. EPI 100 made in USA 1991 --> 700 RON
9. HERTZ Energy, sistem pe 2 cai in incinte Sony bookshelf --> 750 RON

1. O pereche de YAMAHA NS-250E , renumitele boxe "ureche" - pret 850 ron
NS - Loudspeaker
the most revolutionary novelty in the area of the building of loudspeakers of the last fifty years. With extremely low dead weight a
substantially better impulse behavior is reached by the asymmetrical building method and the use of foam material diaphragms, whereby the sound
is radiated evenly, spherically and direction-independent from the entire surface. : particularly large magnets are manufactured in one of Yamaha
developed special methods (zone floating process) and guarantee 30-40% a higher achievement than conventional types. The result: the first
loudspeakers of the world, which are built for music.

Perechea de vanzare este in stare f buna atat estetic cat si tehnic.
Sunetul este unic, medii clare si unice, puternice, joase reci, prezente si extrem de precise.
Ns-250E reprezinta un moment f important in istoria audiophila, efortul inginerilor Yahama de a produce prima boxa cu pretentii hi-fi a nascut un difuzor cu un timbru unic.

Model: NS 250E
Impedance: 8 0hm
periodic resonance: 40 cycles per second.
Frequency range: 40-18000Hz,
assembly: 38×51 cm woofer, 6 cm tweeter
59×42x19cm, 10kg

2. O pereche dubla de LARGE ADVENT , adica 4 difuzoare pentru a fi folosite in modul double stacked - pret 3500 ron
New Large ADVENT fabrricat in 1969 in SUA.
Acest "large Advent" este consider a fi unul dintre cele mai bune difuzoare vintage,
este o configuratie pe 2 cai in suspensie acustica.

J. Gordon holt de la revista Stereophile le descrie ca fiind singure difuzoare fara caracter, fara un timbru propriu asupra inregistrarii redate. :
"Our first reaction was Ho-Hum! They didn't send us. They seemed to have no character at all. But is that bad? Well, no, as a matter of fact.
A speaker shouldn't have character. And indeed, the Advents did prove to be about as uncolored as anything we had ever heard.
No squawk, honk or hollowness, no papery or metallic flavor from disc surface noise, no flabby mid-bass boom. The extreme low end was very deep,
evidently good to at least 35Hz, and the highs were extremely smooth, sweet and detailed."
http://www.stereophile.com/content/advent-loudspeaker

review-ul revistei The Absolute Sound :
"the double advent system sounds more like good electrostatics than any other cone-type speaker we have ever heard."
"I found myself mightily impressed by the Large Advent sound."
http://www.classicspeakerpages.net/IP.Board/index.php?app=core&module=attach&section=attach&attach_rel_module=post&attach_id=5305
http://www.classicspeakerpages.net/IP.Board/index.php?app=core&module=attach&section=attach&attach_rel_module=post&attach_id=5307

Acest pachet este alcatuit din 2 perechi de cate 2 difuzoare Large Adevnt, in total 4.
Conditie estetica 8/10.
Conditie tehnica 10/10.
Suspensiile au fost inlocuite in SUA dupa cumparare.
Au fost folosite doar cu amplificare clasa A, nu sunt rebobinate.

3. Acoustic Research 2ax
O pereche de boxe de mare fidelitate de la producatorul american Acoustic Research si inventatorul compresiei acustice , model - 2ax.
Sunt foarte apreciate de catre cunoscatorii fenomenului vintage, review-uri pot fi gasite foarte usor pe net.
Au un sunet cald si o coborare in frecventa impresionanta. Bi-amp.
Fabricate in USA .

"These are really great speakers. You will really enjoy them. They are a classic
speaker and are historically significant."

"With the ARs, I have to admit I got the best of both worlds. Acoustic
instruments (guitars and mandolins) had more definition than through the A-25s,
approaching the Cambridge Soundworks Towers in this area. And vocal harmonies
were really present without sounding etched or harsh. I DID jump up, grab my
guitar, and play along with "The End of the Road," my favorite track on that CD.
If you're an acoustic musician, you might enjoy AR-2axs. "

"The Acoustic Research AR-2ax is one of my favorite vintage loudspeakers. It has
an almost ideal combination of detail and warmth, and presents the emotion of
various kinds of music without calling attention to itself. It goes deeper in
the bass than Dynaco A-25s, but doesn't exaggerate mid-bass to the extent that
original Large Advents do."

4. Dynaco A10 sunt considerate a fi unele dintre cele mai bune bookshelf-uri ale anilor 1970.
Sunt mici, incap cam in orice raft, sunt carismatice cu grilele de in si finisajul de furnir natural muscat de timp.
Suna surprinzator pentru dimensiunile lor, corect, fara zone concave sau conveze in liniaritatea reproducerii, au o spatialitate buna, chiar surprinzator de buna.

"Imaging is quite good with the Dynaco A-10s. Because they're small, they act
almost like mini-monitors when placed on stands. Much of the music occurs behind
the plane of the speakers, and the musicians are well-spread about the
soundstage. The dynamics are also good. Individual notes start and stop quickly.
If anything, micro-dynamics (very subtle dynamic contrasts within the music)
might be a bit better than with the A-25s, perhaps due to the smaller woofer."

5. Dynaco A-25
Dynaco also distributed the famous SEAS 'A-Series' of bookshelf loudspeakers that were manufactured in Denmark, using input from Dynaco's David Hafler and Seas' Ragnar Lian. The A-Series were marketed between from 1970 until Dynaco's demise in the 1980s. The Dynaco A-25 model proved to be extremely successful, selling over 600,000 units. A modified aperiodic bass reflex design in a handsome wood cabinet, it combined quality sound reproduction with a budget price (under $100), making it highly competitive with much more expensive loudspeakers. The patented aperiodic (essentially non-resonant) woofer design utilized a highly-damped vent instead of a reflex port, whose acoustic resistance is very carefully controlled. The resistant venting action lowered the "Q" of the system and reduced impedance variation near resonance in the A-Series speakers.

Boxe pe 2 cai foarte muzicale

6. KLH Model 32
KLH is an audio company founded in 1957 as KLH Research and Development Corporation in Cambridge, Massachusetts, United States, by Henry Kloss, Malcolm S. Low, and J. Anton Hoffman originally to produce loudspeakers.[1] KLH had sales of $17 million, employed over 500 people and sold over 30,000 speakers a year before it was sold to Singer Corp in 1964.[2] Later it was bought by Electro Audio Dynamics Inc. and moved to California in 1980.[2].
KLH was then acquired by Kyocera Ltd, a Japanese conglomerate, and production was shifted overseas. Kyocera decided to stop manufacturing audio products in 1989, and sought a buyer for the KLH brand. The company is now known as KLH Audio Systems located in Santa Ynez, California. Formerly known as Wald Sound and Verit Industries.
Modelul propus pentru vanzare este un bookshelf bland cu un sunet cald si un bass prezent. Functioneaza foarte bine.
Estetic se prezinta bine, boxele au fost recent verificate pentru etanseitate, conectica a fost schimbata cu una moderna calitativa.
Mastile originale acoperite cu panza de in sunt disponibile.
Culoare neagra.

7. UNITRA 140W
Restaurate complet in 2010, toate cele 6 difuzoare sunt noi, Tonsil, s-a folosit acelas cod/part number precum echiparea originala.
Incinta tratata in 4 strturi pentru cresterea rezistentei si antifonare.
Filtre noi produse de AudioAlchemy dupa studiul difuzoarelor si pozitia lor pe fata incintei, 140 euro per bucata !
Conectica aurita la interior si cabluri de cupru pur.
Finisaj piano black deosebit.
Boxele vin cu mastile originale care au fost si ele restaurate, cu strech acustic nou.
Nu ma intereseaza schimburi.
Suna cald si foarte bine, au fost rodate si folosite doar cu amplificare clasa A.

8. EPI 100
EPI was founded in 1970 by Winslow Burhoe, to manufacture speakers based on
the "module" he had designed. This module consisted of an eight inch woofer and
a one inch tweeter. Many different speakers were built using various
combinations of this module, and a six inch version of the woofer. They were
wonderful speakers and are still usually prized by their owners, who will
frequently go to great lengths to repair them properly when they (rarely)
develop problems.
As time went by market forces demanded "new and improved" product lines and
more a "modern" look to the product (and the promotional literature...) and so
what I call the "intermediate" line was rolled out. Some of these speakers were
essentially the same as previous models, but they all had an updated look. These
speakers carried an "A" prefix to their model numbers, all that is except the
venerable 100, which had the new look but not the new name. The A300 and A500
were introduced, and were actually quite different from previous EPI speakers.
"I bought my first EPI 100s in 1982 and now have a few pairs and some other EPI
100s. I have compared them to several other vintage and modern speaker systems
and I am always impressed by their clarity and musical nature. Their bass is
good in both quality and quantity but it is the tweeter that leaves its
competition in the dust. I have always found that violins, piano, brass, and the
female voice that will give fits to speakers. EPI 100s handle these with grace
and ease. Not the best speaker I have ever listened to but easily the best
speaker for the money. "

9. Sitem pe 2 cai cu filtru separat HERTZ ENERGY in incinte SONY
Boxe bookshelf pe 2 cai cu sistem Hertz Energy ESK 165 .
Putere 200W peak , 100W continuous.
Impedanta 4 ohm , sensibilitate 93dB, filtru Hertz CX 200 , conectica banana .
Date despre sistemul hertz Energy folosit in aceste incinte gasiti aici :
http://www.hertzaudiovideo.com/default_en.htm
Detalii tehnice despre Hertz ESK 165 :
http://www.hertzaudiovideo.com/Doc/pdf_esk165.pdf
Rezultatul este un sunet precis si foarte clar, vocile suna superb prin aceste boxe, bass-ul este decent pentru dimensiunea difuzoarelor iar distorsiunile apar foarte tarziu in cresterea volumului.