check out this old article

[Loheswaran]

Have a read of this article quite interesting:
http://www.thevintageknob.org/MISCELLANEOUS/SS1980TT/SS1980TT.html

Lohan

 

[awsmone]

Have a read of this article quite interesting:
http://www.thevintageknob.org/MISCELLANEOUS/SS1980TT/SS1980TT.html

Lohan

the Sony PSX9 was recently reviewed and remeasured as have the AF1 etc
in HFN review March 2019 issue ; pg 118

-0.0925% Speed accuracy

0.02% wow
0.04% flutter
through spindle rumble -74db !
empty groove rumble - 68db using original mat from 1977 lol

Noise -62.8 dB!

AF1 measured same way

+0.02% Speed accuracy

0.01 % W
0.02 % F
-74.5 dB rumble
-74 dB groove rumble (-70dB w/o vacuum)

Noise - 55.1dB

 

[ddk]

Have a read of this article quite interesting:
http://www.thevintageknob.org/MISCELLANEOUS/SS1980TT/SS1980TT.html

Lohan

Had most of those players at some point, not sure what the tests mean in sonic terms if anything at all but I'm surprised that the EMT 930 was their overall winner, one would think that the DDs should have done better than a 60's idler design...
david

 

[Loheswaran]

I get the impression that it was done by a test records and specs as opposed to an 'ear' test - sadly my Japanese ain't that good

 

[ddk]

I get the impression that it was done by a test records and specs as opposed to an 'ear' test - sadly my Japanese ain't that good

Seems to be a rumble test. My Japanese is nonexistent I only look at the picts !

david

 

[Loheswaran]

Love it

That said if it were a rumble test alone the 930 won't do that well.

If it were a sound quality test then it would be interesting indeed.

 

[ddk]

Love it

That said if it were a rumble test alone the 930 won't do that well.

If it were a sound quality test then it would be interesting indeed.

Maybe but one of those numbers is for rumble and it scored highest along with the P3.

david

 

[microstrip]

the Sony PSX9 was recently reviewed and remeasured as have the AF1 etc
in HFN review March 2019 issue ; pg 118

-0.0925% Speed accuracy

0.02% wow
0.04% flutter
through spindle rumble -74db !
empty groove rumble - 68db using original mat from 1977 lol

Noise -62.8 dB!

AF1 measured same way

+0.02% Speed accuracy

0.01 % W
0.02 % F
-74.5 dB rumble
-74 dB groove rumble (-70dB w/o vacuum)

Noise - 55.1dB

How is "noise" measured? Sorry, I do not want to wait two years before knowing.