Greetings Speedy:
The JPS Digital AC is highly recommended & comparatively inexpensive, so the cost-effectiveness factor is high. Many users have reported highly satisfactory results using this cord on their digital equipment. I have one among my large-ish collection of cords and in fact it's been in use for several years (on my EAD U2000 cdp). I have tried many other cords on that player but eventually I've always reverted to the JPS. As cheap as they are, why even bother to try mimicking a proven formula, with questionable results. Filtration isn't the only thing responsible; their aluminum conductor approach reportedly factors as well.