If you don't require the balance control or the tape loop your LS11 provides, you may want to consider the following very law-abiding model, costing $450 new:
http://www.divertech.com/asllineone.html
Spec-wise it appears to be a fine match for your Classic 60 amp. And you could have some fun rolling its single 12AU7 tube.
Some years ago I temporarily used its predecessor model, the Line One, in my main system while my main preamp was down. It sounded remarkably good, even with its stock tube, which I attribute mainly to the simplicity of its circuitry.
Good luck. Regards,
-- Al
http://www.divertech.com/asllineone.html
Spec-wise it appears to be a fine match for your Classic 60 amp. And you could have some fun rolling its single 12AU7 tube.
Some years ago I temporarily used its predecessor model, the Line One, in my main system while my main preamp was down. It sounded remarkably good, even with its stock tube, which I attribute mainly to the simplicity of its circuitry.
Good luck. Regards,
-- Al