Why there are 4 T8 with same price around 8.000 usd?
Which are the difference in sound of these 4 cartridges with same price and very similar weight and output?
There are a lot of models it's true. As a distributor it certainly adds a challenge. In some ways you should focus on the top version of each model series, although I like the Morion presented here because the price ($3,500) is quite reachable. In some instances a system optimized already for ultra-low output carts might also choose lower output. A few comments:
There are three fundamental architectures; the Splash/ART, the Y-12/Y-12S and the T-8.
Each step up in a given design usually comes with higher output and subtle changes in metallurgy in the motor; Roman Lebedev is quite focused on metallurgy to achieve his ideal sound across his designs and he doesn't talk about all the secret details. You notice the mention of Meteoritic iron on the website for the Voices M? The lower cost ART, for example, has three versions. The least costly uses MuMetal for the core, the middle Permalloy and the top Permendur. AS you go higher up Roman has more guarded choices . Mostly the MicroHD stylus shape is used but also the 0.3x0.7 line contact on some.
The Sensitive Sound 'sound' is in my experience quite consistent across these seemingly diverse designs; very wide bandwidth with excellent true low bass weight. Midrange presentation is deep, not as pushed forward as some, really nice sense of space very natural.
The new owner of the Y-12 mentioned above sent me a few comments now the cart has a little time on it:
"... it has settled in greatly, and the sound is fantastic. The Y-12 seems to be able to produce deeper lower end notes than any I have heard, but it’s not overbearing, it just seems to go to lower octaves than most others. The ability of the Y-12 to produce vocals, female and male, is also very pleasing. Holly Cole, Nat King Cole, Harry Belafonte, Led Zeppelin, Miles, Monk, no matter what I throw at it, it just seems to extract the music from the Lp’s. Yet it is still very quiet and sensitive on stuff like the Cowboy Junkies, Allison Krauss, Rickie Lee and Chris Whitley’s solo LP. A very good mate for the Audio Origami tone arm (finally). All and all, love it…"
This lowest octave performance is one of the really neat attributes of Sensitive Sound.