Leben Hi-Fi Stereo Co. CS-600

$4850 includes PayPal fees and FedEx CONUS shipping.
This is a Leben CS600 integrated amplifier.  I'm the original owner, purchased in July 2010 from an Authorized Leben Dealer in Phoenix, AZ. The CS600 comes with three sets of tubes, the original set (missed the pictures), the installed set of 4 x Shuguang Treasure Black Bottle 6CA7-Z (EL34) with 4 x Tung-Sol 6CS7, and the third set include 4 x Tung-Sol EL34 with 4 x Raytheon 6CS7.  The unit also ships with the Sablon Audio - Gran Corona power cable and the Acoustic Revive RCC-24 Ground Conditioner - can you tell I read Jeff Day. 
The unit is in excellent condition. It's been my office unit with very light use.  I'm selling because I haven't used the amp, or played any speakers for that matter, but a handful of times in the last three years - this amplifier deserves to be played.
Thanks for looking.