Audio Feast
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Premium Audio Components
Audio Feast Gallery Having Fun with Feastrex
When I go to Japan, I usualy spend couple of days at Feastrex Skunk Works with all kinds of Feastrex supporters and friends.
If you have are going to Japan, don't be shy! Please send me an email, I will help you making arrangement for your visit!
July 7th 2012
July 7th is Tanabata Festival in Japan (please Google for detail), and we decided to have Tanabata Audio Fest @ Nirasaki
Part 1. Hand crafted Phono Cartridge and Tonearm by Osawa-san.
Osawa-san is VERY well know Audio DIYer in Japan. He makes everything, Phono cartridges, Tonearms, Phono stage, preamplifier, amplifier, and speaker drivers...
In this time, I had a chance to listen:
straight tonearm for Decca
straight tonearm with magnetic tracking force adjustment (we can adjust tracking force while playing)
various stereo phono cartridges and a mono cartridge
They are MC cartridges, and coils are located vely close to the stylus tip. He said making stereo cartridge is very difficult, and he needs to make 5 to 10 of them to get one good one!
How many people had a chance to listen metal master disk?? I had. It was the sound very close to the live music. Problem is that stylus does not last. It died after we played a side!!
It was my lucky day. He told me that he is going to send me a mono cartridge!
Part 2. 3ch DSD Play back
McAudi used to manufacture proffecional audio equipments for Sony. The first all descrete DSD AD/DA converter was their design. You may own a SACD that used their AD converter!
We auditioned their latest DSD transporter which is modified Oppo multidisk player, and DSD DAC.
There many SACD that is recorded as 3 channel, stereo plus center channel. We tried with:
De9 Type-III pair for two channel (CV4055pp amp)
NF5-PIP for center channel (prototype 300B SET amp)
We were very surprised with the result. Long story short, 3ch DSD is not practical with speakers that have good three dimensional image.
It has only one sweet spot (a chair). All other location has double image.
Stereo speakers (De9 Type-III) has its own depth, and center channel speaker (NF5-PIP) add its depth. Untill I moved to the tiny sweet spot, my brain was very confused.
Part 3. Studer meets DSD
McAudi owns many reel to reel tapes that they recorded live. They use their tapes and Studer C37 as a source, and create DSD file. They can compare original sound from C37 and DSD DAC. This is their development process.
Do I have their DSD files? Why not!
