Ordered the Big Blue Bluetooth amp on sale. Not interested in the Bluetooth aspect. It is also a dac (up to 32/384) and portable amplifier. Not really expecting it to compare to the PonoPlayer, but it should be a huge upgrade for the computer. Can't wait to give it a listen with the M&J. Probably use the GL2SE 1st since the MJ2 are set up with balanced cables.