Premier Guitar Reviews PJB Bighead

“Bighead
Designed for low enders, this amp features a 2-band EQ, has a runtime of eight hours on its rechargeable lithium-ion battery, and functions as an interface or analog preamp as well.
$249 street”

Follow this link to read the full article:

https://www.premierguitar.com/articles/25995-tools-for-the-task-headphone-amps?page=3