Both TRS jack and binding posts are connected to the same taps on the output transformers. To update this thread, one person did try the S.E.X. 2.1 amp set to 32 ohms with LCD-2s at the last Seattle Head Fi meet and seemed pretty happy with the result, feeling it had more than enough power. Another LCD-2 owner liked the Smack with his, set to the 128 ohm tap.