California Audio Labs Alpha DAC the desirable version

Hello for sale my nice and becoming more rare California Audio Labs Alpha DAC with two NOS 1950s Sylvania 12ax7 tubes that cost me $150 back in June 2016 have the original bill for proof, this Alpha dac is the original 18-bit 44.1/48KHz the more desirable version than the 24/96 version. Digital inputs AES/EBU (XLR), Coaxial (RCA), Optical (toslink) and AT&T optical (ST) and for output Analog RCA output only. This wonderful dac is part of my collection for while now perform outstanding with my ML 31.5 transport, Yamaha CDX910 via coaxial very nice! combo and one time my rare Barclay Cabernet CD Transport via ST what a sweet sound that was :) any way everything works great! the condition is 8/10 with few small marks here and there but nothing major please take a look at the pictures for the nice condition. Shipping via USPS Priority Mail or FedEx Home Delivery. Any questions please feel free to ask before you commit to buy. Stay safe and Thank you, Bernie

NOTE: good news found the original manual, power cord also comes with the original bill receipt from the original owner but no original box. Will included two more tubes that came with the Alpha when originally was purchased by me at that time these are two RCA 12AX7 don't know how many hours on them. Thanks!

ALPHA specs: Made: July 1993 ☆ RCA line output : 3.5v ☆ Voltage: 115v ☆ Tubes: Two 12AX7  ☆ Digital inputs:AES/EBU (XLR), Coaxial (RCA), Optical (toslink) and AT&T optical (ST)