Jagnje u vučjoj koži

[stein]

Dakle, dolazimo do sustine priče...Nas nekoliko govorimo o podizanju nivoa kvaliteta sa osrednjeg na bolji (dakle kompromis), ti govori

[zbotic]

Niti sam ja neki elektro-audio znalac niti imam ambicija to biti.Ali, mogu i radim slijedeće:1. Ako modificiram neki uređaj uzmem datasheet od najboljeg (od te firme ili sa sličnom koncepcijom) i proučavam u kojem smjeru su njihovi eksperti radili unapređenja. (npr. svi skupi Maranzi imaju stabilizirani clock, bolje regulirana napajanja, odvojene grounde, itd........)2. Uzmem datasheet od sastavnih dijelova playera i pročitam sve po 20 puta da bih shvatio sto je tu bitno, a sto nije (uglavnom tamo sve pise, ali malo tko to čita, pa se nakon desetak godina "otkriva topla voda"). 3. Pratim iskustva po Internetu i selekcioniram prema onima koji to rade tek da prčkaju i onima koji znaju objasniti tematiku. (npr. javljaju se i ljudi koji su vrlo stručno analizirali audio digitaliju tj. CD playere (u mom slučaju bitstream) pa i projektirali, kao Malcom Hawksford, John Westlake itd.

[stein]

Ali, mogu i radim slijedeće:

1...2...3...

Blago vremenskim milijunasima... Jedino da vam zavidim...

(iz ove se koze slabo gdje moze osim u ... )

[SHAVIJA]

"Isti qrac" - bar mi nemamo na ovom forumu zabranjene recikao kurac....ja sam i da ostane tako ipak smo mi majstori svi,nismo kao ona "gospoda" sa onog jebenog foruma

hahaha, upravo tako, radost je osloboditi se tiranije tih umobolnika ja bi to licno ovako na sred terazija

[Zen Mod]

neka njih tamo ...... i mi smo ipak nekad bili "njih"

[sir Oliver]

Pozdravio vas Ljuba:http://www.hifi-forumi.com/forum/viewtopic.php?f=17&t=17455&p=254631&sid=7db7ac2e51e342132aff307677528867#p254631

[Zen Mod]

prenesi pozdrave nazad ;Vuletu posebno od ZM-a .

[sir Oliver]

Jel iz loge?

[BlueSky]

"Isti qrac" - bar mi nemamo na ovom forumu zabranjene recikao kurac....ja sam i da ostane tako ipak smo mi majstori svi,nismo kao ona "gospoda" sa onog jebenog foruma

ha ha ha ovo mi je promaklo ranije

[sir Oliver]

Opet McIntosh i opet PHILIPS. Ovaj put legendarni visokotonac T8 sa Mekovom maskom.

1" Dome Tweeter 036-068 This soft fabric dome tweeter is made by Philips and is similar to the round Philips AD 0141HE-T8 but is custom made for McIntosh. The rectangular shape is custom made for Mcintosh. This allows closer spacing of the tweeters then used in multiples for the column systems.

The black plastic front plate has a phasing disc in the center that smoothes the response, improves directionality and also protects the dome from being damaged. A recessed area near the bottom is for an aluminum silk-screened decal with the McIntosh name in gold lettering.

The soft dome, voice coil, tinsel leads and terminals are one subassembly called a "butterfly." The tinsel leads are brought out to terminals on either end of the subassembly. Some versions had solid wire instead of tinsel wire. A red mark can be seen on the upper left part of the assembly that indicates the positive terminal. The fabric of the dome and surround has a black colored coating to seal the interstices of the material. A second custom coating under the dome was made only for McIntosh. This completely damps out the fundamental resonance.

Two holes in the butterfly locate with pins on the magnet structure. These assemblies are interchangeable and a damaged butterfly assembly can be easily replaced by removing three screws from the front plate and adding the new one. The rainbow colors are from the plating process.

The magnet assembly is made of three parts. The back plate and pole piece is made from one piece of cold formed steel. The magnet is barrium ferrite. The front plate is stamped steel. The two locating pins and three screw holes can be seen in the picture. The center of the pole piece is recessed for an increased air volume behind the dome.

We sampled a version using Ferrofluid in the magnetic gap. This raised the resonant frequency and limited the useful low frequency response of the tweeter and that was not acceptable. Later, we found that the ferrofluid had dissolved the adhesive that held the voice coil to the dome assembly. The problem was said to have been corrected by Philips in later production.

Ferrofluid is a mixture of finely ground magnetic particles suspended in a viscous fluid. It is kept in place by the magnetic field in the gap. It is used to keep the voice coil temperature down and transfer the heat to the magnet structure. It was not used with this tweeter or any other tweeter until 1993, starting with the 036-095.

A McIntosh part number label is added to the tweeter after is has been tested. The tweeter is 3-11/16" X 3-1/8" and 1" deep. Weight is 262 grams or about 9.2 ounces. It is used in the XRT18 and XR290. This tweeter was no longer used for designs made after 1992.

[sir Oliver]

Evo lepse slike

[Ја sam sam]

 За те звучнике се већ распитивао један Хи- Фи-ста, и тражио моје  мишљење .Ево шта ми је послао :  http://www.roger-russell.com/driverst.htm

[sir Oliver]

I sta si mu rek'o?

[Ја sam sam]

I sta si mu rek'o?

Шта друго,  "Канта"   .Ма давеж   .

[Zvu]

Ja mislim da u tim kutijama nema dovoljno drajvera

[Ја sam sam]

Ja mislim da u tim kutijama nema dovoljno drajvera  

Да знаш, позади нема ни један  .

[sir Oliver]

Ozbiljno, ima li ko da iznese iskustva sa Philips T8 driverom?

[Zvu]

Postoji dve vrste T8 visokotonaca. Jedan je sa providnom kalotom od neke vrste termootporne folije i ima mrežicu sa istim phase plug diskom ispred.

Drugi je ovaj koji ima kalotu od neke vrste tkanine (nije svila) i phase plug kao na slici.

Meni mnogo lepše svira onaj prvi s tm što je jako lako zapaliti ga jer mu je kalem namotan na papiru koji je impregniran lakom. Vrlo brzo provri kalem.

Namotao sam ih se tušta i tma. Zvuk superiorniji... Skretnicom se može upropastiti koliko i napraviti da bude sjajan. Skoro sam našao neki review na internetu gde su napljuvali najcrnje Philipsov T8 i to od strane velikih imena ali se meni i dalje sviđa zvuk sa njega.

Ako je trebalo da pišem o baršunastim svilenim visokima, taj deo priče bih zaobišao. Rekao bih jeftin, a dobar visokotonac...

[sir Oliver]

Ja mislim da u tim kutijama nema dovoljno drajvera

Ovde sigurno ima dovoljno

[Zvu]

24 visokotonca po kutiji. To prosto ne može da svira kako treba. Nije ni čudo što Mc nije postao neki reper za ozbiljne kutije... Možda za skupe ali to je sve...

[sir Oliver]

To su zvali Isoplanar tehnologija, ako se ne varam. Bilo je dosta slicnih resenja.

[Zvu]

Video sam na nekim Grundig i Thorens kutijama po kupujem/prodajem. Sve cenjene marke zvučnika, nema šta. I to ih prodaju za ogromne novce misleći da se neko i dalje loži na 100 drajvera po kutiji ili šta već...