Vintage DENON DA-S1 Digital to Analog Converter DAC230 Volt Audio Classics, Ltd. . Original MSRP: $8000.00 Unit is 230 Volt. Will need inexpensive Step-Down Transformer to operate in the US. (unit only draws 28 watts) Heavy duty construction weighing in at 45 lbs. Tested and fully functional. A few scratches on the top. With original box and manual. We found this information on-line: The ALPHA processor (Adaptive Line Pattern Harmonized Algorithm) is used in the D/A converter, and digital data is stored based on digital data so that it approaches the analog waveform existing in nature. It also functions as the worlds first adaptive digital filter (Automatic Low Pass filter Harmonic Adjustment) that automatically adjusts the cutoff band based on the input signal even when a CD with a different recording method is applied. Equipped with five types of digital interface, it supports ST-Link, Tos-Link, balanced line (AES/EBU balanced transmission) XLR, unbalanced line (two wire coaxial unbalanced transmission) RCA and BNC. When used with the DP-S1, synchronous drive by ST Gen-Lock is also possible. The master clock of the D/A converter operates the IC of the CD transport side at the same timing, eliminating clock jitter caused by digital transmission. Thanks for looking. Model / Serial DA-S1 / 3041500045Insured shipping for this item with signature will be $100.00 Please submit all inquiries regarding this item through the Ebay messaging system and ask All questions before committing to purchase. We will only ship to your Ebay/Paypal/Credit-Card Verified or Confirmed shipping address. We will not under-value this item or otherwise falsify our invoices or shipping documents for any reason.This item is available for sale only through Ebay.________________________________________________________________________________________________________