Used Sony PHA-3 Headphone Amp for $656

The Sony PHA-3 Headphone Amp is currently available in “Used – Good” condition for $656, and “Used – Very Good” for $678 by Amazon Warehouse Deals. As usual with used items, both supplies and prices can change more often than usual, so there’s a YMMV component (no pun intended) depending on when you read this.