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Upgrades to Cary 308t CD player

I will appreciate any opinions concerning any upgrades of/tube replacement in Cary CD-308t CD player.

The stock 12AU7 tubes contain a GE logo/sign and bear a legend "JAN, made in USA". While they are obviously modern production tubes, they seem quite decent - very transparent and dynamic.

I also tried NOS Mullard CV-4003 and NOS GE 5814A/12AU7 Grey Plate with 3 mica. The latter two have different sound, and GE 5814A is much more colored than others, though very dynamic and detailed.

Best regards,
Alexander
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Showing 1 response by creativepart

creativepart's avatar
creativepart
155 posts
 
JAN stands for "Joint Army Navy" and it means the the tube has been built to Military spec and can be sold to the military. Believe it or not there are lots of military items that still use tubes. Heck, even some pretty high tech fighter jets use gear with tubes.

JAN tubes are rugged, but not always quiet.

Paul Green
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