Disclaimer: I am a Xindak dealer.
Nick...Make sure to look into the Xindak SCD-2 also, which has a volume control.
You can view more info on the SCD-2 here:
http://www.xindakaudio.com/en/products/productinfo.asp?id=SACD
Please do not hesitate to let me know if you have any questions.
Best Regards...Mike - Father & Son Audio