Hi I purchased the Cayin 300B mk2 off the used market so it's fair condition is from a scratch on the inner sides of the amp and power supply. I only see it when the amps are apart.
Besides that the amp is excellent working condition.

Selling as I have Woo Audio WA5 LE 300b amp.

All factory tubes and power included comes with tube protection cage. Amp will be shipped in original container.

Pm with questions
Thanks

For listing of features and specs visit Cayin website. https://en.cayin.cn/features/7/59/574.html