The SMSL HO100 is the newest budget headphone amplifier from SMSL. It can output up to 1.5W into 32ohm and it's priced at $149.
JDS Labs has made a name for itself rather quickly, thanks to their idea of a product that underpromises and over-delivers. It’s cheap, it’s made in the USA and it kicks butts. Now, it has a „+” in its name. The Price is set at $208 for the combo, let's go!
XI Audio Broadway S is a really interesting transportable headphone amplifier that is battery powered and it runs a pure analog discrete class A. It is priced at $1599.