Partying at Feastrex Japan (DIY Phono cartridges and DSD) - diyAudio
Go Back   Home > Forums > Commercial Sector > Manufacturers > Feastrex

Feastrex Hand crafted speakers

Reply
 
Thread Tools Search this Thread
Old 18th July 2012, 04:52 AM   #1
fulken is offline fulken  United States
diyAudio Member
 
Join Date: Jun 2008
Location: Nashville, TN
Default Partying at Feastrex Japan (DIY Phono cartridges and DSD)

July 7th 2012

July 7th is Tanabata Festival in Japan, 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

straight tonearm for Decca
Click the image to open in full size.

Decca tonearm detail (fluid damping)
Click the image to open in full size.

Decca on EMT950
Click the image to open in full size.

Mono cartridge
Click the image to open in full size.

Mono cartridge
Click the image to open in full size.

Mono cartridge on pivot head shell
Click the image to open in full size.

magnetic tracking force adjustment
Click the image to open in full size.

(no magnetic force)
Click the image to open in full size.

Phono stage
Click the image to open in full size.

​They are MC cartridges, and coils are located VERY 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!

Stereo cartridge on pivot head shell
Click the image to open in full size.

Click the image to open in full size.

Click the image to open in full size.

Click the image to open in full size.


How many people had a chance to listen metal master disk?? Yes, I have

There are couple of reasons why we cannot! The sound was very close to the live music. I mean lacquer master is far better than most LP, but the metal master is SUPER fast! Problem is that stylus does not last. It died after we played a side!!

Playing Metal Master Disk
Click the image to open in full size.

Playing Lacquer Master Disk
Click the image to open in full size.

Click the image to open in full size.

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 is many SACDs that recorded as 3 channel, stereo plus center channel. We tried how it sounds on all field coil 3 channel system!
Click the image to open in full size.

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 had only one sweet spot (a chair). All other location had double image.

Stereo speakers (De9 Type-III) have 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. Teramoto-san has Studer C37 (and many others), and there was DSD ADC.
Click the image to open in full size.

Click the image to open in full size.

Why not making own DSD256 files?? We compared original sound from C37 and DSD DAC. DSD64 sounded ok, DSD128 was better, and DSD256 was wonderful!

Do I have their DSD files? Why not!
__________________
Audio Feast
Premium Audio Components
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
News from Feastrex Japan fulken Feastrex 39 12th July 2014 09:05 AM
Feastrex Visit (Ymanashi Japan) fulken Full Range 14 22nd June 2008 12:50 AM
a little help with phono preamps/cartridges bonsai171 Analogue Source 3 24th April 2004 03:53 PM
Phono cartridges in India ashwin Analogue Source 2 1st December 2003 01:27 AM


New To Site? Need Help?

All times are GMT. The time now is 09:54 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2