For sale is a Decware CSP3 Two-Channel Single Ended Triode OTL Tube Headphone Amplifier/Preamplifier. Less than a year old -- purchased in August 2015. Most of that time it has been in storage (climate controlled, no pets or smoking).
You can read all about this preamplifier/headphone amplifier at
https://www.decware.com/newsite/CSP3.html.
This unit has the following add-ons:
Base Style: Natural Oak $50
Volume Control: Stepped Attenuator $150
Output Jack Configuration: Dual Stereo $50
Signal Capacitors: Cryo Beeswax $275
Headphone Jack Type: 1/4 inch + 4 pin XLR $75
Knob: Gold Knob (the only choice with stepped attenuator)
I replaced the three (3) output tubes with audiophile Telefunken E88CC/6922 cryogenically treated and matched tubes that I purchased from Upscale Audio. I doubt I have put more than twenty (20) hours on this unit. The tubes are not even fully broken in.
Over $2000 invested. Will sacrifice for $1100 with professional packing & shipping. Any questions, just ask.