Yes . Its on the left side of the amplifier. I am using it for the HE6 and the lCD 2.2. I wont use it for the hd800 as its very powerful and the hd800 sound terrific on the single ended jack with he switch on high. Jack did a fantastic job with this design. Wei Wu been building tube amplifiers for over 40 years.
oh u can use LCD-2 on there as well?