Cary Audio CAD-300SEI 300B tube integrated. Stereophile recommended! $5,700 MSRP

Selling for $2,495.00

Stereophile recommended.



A 300B amplifier is not for everyone. With just 15W on tap, they work better with high efficiency speakers like horns or full range driver based speakers. When in use with such setups, the 11W is just a paper number. The watts from a 300B tube are just pure musical magic and bliss. Unlike other tubes, the 300B don’t just reproduce music, it draws you (especially with the right speakers) in and adds this 3D dimension to the music. Vocals were particularly stellar through the Cary. If it were up to us, a 300B amp and a pair of high efficiency speaker system would be our top choice for enjoying music. But, enjoying music is never the same for everyone so if you are looking at this amp, make sure you have the right speakers for them. And start enjoying it. Unit has been upgraded with Mundorf and Solen caps, Sylvania 6SN7 and Gold Lion PX300B tubes at Cary Audio by the previous owner who spent nearly $1,200 for it. 300B tubes have only 10 hours of use on them.

Cosmetically, the unit is in pretty good shape. Minor scuff marks from use but nothing major. Remote, manual and BIAS meter included. Unit will be securely packed for safe shipping.

Additional information

Weight 52 lbs
Dimensions 20 × 20 × 16 in

Manufacturer Website



Minor scuff marks




Tube Integrated