Note - I do have one remaining and as it is discontinued reduced the price
The new M19H Headphone Amplifier from Gieseler a flexible entry level unit that that still packs a punch.
The unit is built with solid designwork and high quality components specifically designed for high-quality audio equipment.
Balanced XLR output
Unbalanced 6.3mm headphone jack output
High/low gain setting
9v + 9v external transformer
Automatic shutdown/startup muting
Basic pre-amplifier functionality