Looking at picking up the Niles AXP-1 through OneCall for $81 to switch between my Little Dot I+ and HK 3390 receiver. Based on what I have read, seems like this is good unit for the price that doesn't add in interference to the signal.
However, I would not mind spending less if there's something with similar audio quality. Probably prefer a switch with at least three inputs in case I want to add another headphone amplifier later.
What do you guys use?