Trafomatic Experienece One

[zek]

Naših ruku delo

Prvi utisci, pre zvaniÄnog testa:

http://www.6moons.com/audioreviews/traf ... ience.html

[cheda]

Au sto je ljep:)

ali zar nije to high end?

[neskor]

Gde to moze da se poslusa i kupi?

[anubisgrau]

po ceni nije, ali navodno svira fenomenalno, po recima onih koji su ga culi.

zanima me jel taj trafo cija je slika prilozena u ovom pojacalu ili nije? nesto mi ovi okrugli oklopi mirisu na toruse, a sad da li je to OK staviti u SET, napisace neko ko zna o tome vise od mene.

[paja959]

Izgleda super

jel slusao ko to? ima li soft start/stop?

[anubisgrau]

OK, nasao

With single-ended output transformers commonly of the EI type or double C cores, the apparent toroids on deck of the Experience might raise question marks. So I asked Mr. Darko Sasic to outline the design criteria of the project. But first, a quickie in geographics. Serbia of late used to be central Yugoslavia until the dissolution of that Socialist Federal Republic in 1990. When Montenegro left the union with Serbia last year, Serbia became its own country once more and, starting in the West proceeding clockwise, is surrounded today by Croatia, Hungary, Romania, Bulgaria, Macedonia, Kosovo, Montenegro, Bosnia & Herzegovina. Yugoslavia of course was home to the Elektronska Industrija factory in

Niš and produced the famous EI tubes under Philips license as early as 1951. Ei has now temporarily suspended operations and is said to be restructuring, "with all quality controls, specs and materials being re-assessed to bring you a better product." Slovakia as the home of JJ Electronics meanwhile sits north of Hungary and, clockwise again, is surrounded by the Czech Republic, Poland and the Ukraine. The Czech Republic meanwhile recalls Riccardo Kron's KR Audio and the Tesla valve factory. Eastern Europe and vacuum tubes go way back then. Against such history, it's fitting to see Trafomatic author its own valve integrated outfitted with JJ output glass. Now to Mr. Darko's technical descriptions:

"Underneath the canisters we have dual C core output transformers and a toroidal power transformer. The amplifier circuit is a simple two-stage design with coupling capacitor and no feedback. In the first stage, we have an ECC81/12AT7 whose two halves are connected in parallel. The amplifier was initially tested with Telefunken ECC81s but our goal was that it should work fine with current production tubes. Tube rolling with expensive small signal NOS variants is of course possible. The coupling capacitor is by Mundorf, the volume pot by Alps, the electrolytics are by Nippon Nichicon, Siemens and other quality brands. The 5U4G tube rectifier circuit is simple and well oversized for the job. The 2A3 heaters use a DC supply for better S/N.

"Important: It is strongly recommended to use only new production 2A3s (JJ, Svetlana, various Chinese) because our anode dissipation is set to 18 watts. Old, rare and expensive tubes can be damaged or experience shortened life with reduced performance. The power supply is 230/115V, 50/60Hz but should be changed only by an experienced technician because it'll require rewiring the amplifier. Input sensitivity is 1Vrms, power output 2 x 4 watts into 4/8 ohms. Frequency response is 10Hz - 35kHz (-3dB), S/N at 1-watt output 64dB. Distortion is 0.9% at 1 watt, 5% at 4.4 watts.

[cheda]

Menno Vanderveen bi se zagrcnuo da su torusi u pitanju.

A i pojacalo bi debelo uslo high end (i po ceni i svakako drugacije)

Poz

Mada bas bih voleo kada bi neka nasa firma sutra izbacila SE torus

[C B]

Svaka cast, eto kako se dokazuje pamet!!!

Profi napravljen uredjaj (pogotovo obzirom na domace uslove), odlicno marketinski propracen (super sajt za nase uslove i odlicne fotke) i na kraju test u vrlo uticajnom mediju!!!

Zaista mnogo toga u jako malo vremena!

[Petronius]

Svaka cast, eto kako se dokazuje pamet!!!

Profi napravljen uredjaj (pogotovo obzirom na domace uslove), odlicno marketinski propracen (super sajt za nase uslove i odlicne fotke) i na kraju test u vrlo uticajnom mediju!!!

KonaÄno da je neko ovde poradio i po marketingu (Å¡to je na zapadu glavna stvar koja prodaje ureÄ‘aje)

[Stefan123]

Stvarno izgleda....Svaka cast !

[stefaca]

mislim da se polako srbija otvara a da svet kapira da imamo sta da ponudimo.

[Willi Studer]

Experience One je proveo kod mene u kući poslednjih mesec dana, pogađajte zašto. Nisu torusi u izlazu, to su dupla C jezgra.

[neskor]

I kakvi su utisci?

Koliko to kosta kod nas?

[paja959]

Experience One je proveo kod mene u kući poslednjih mesec dana

[Willi Studer]

Ne, nema soft start. Ova snaga ne može da zatalasa membranu ali se čuje hladna emisija. Ima vrlo nizak šum i brum (oko 15 mV) za direktno grejane cevi.

[paja959]

Ne, nema soft start. Ova snaga ne može da zatalasa membranu ali se čuje hladna emisija.

[Willi Studer]

Male za ovo pojacalo, 90 dB.

[Ljuba]

Vratimo se na Trafomatic.

Pozdrav iz Berlina

[micke1]

Veorvatno bi dobro radili sa nekim Avantgarde modelima (DUO?),video sam uparene na nekom sajtu, ali cena Avantgarde je malo visoka.

[zflazar]

Ima i nastavak testa na 6moons-u.

http://www.6moons.com/audioreviews/traf ... nce_2.html

Nisu baš sve lovorike, sudeći po poslednjem pasusu, ali i to treba shvatiti relativno... i naravno, pohvaliti trud i entuzijazam konstruktora iz Srbije!