[Armaegis]

Here's another review, done by Headphone Guru for the Natayo OTL amp.

Just dumping the review link here since it's invisible in the post:

http://headphone.guru/wolf-ear-audio-natayo-otl-vacuum-tube-amplifier-new-kid-block/

I'm listening to the amp now. Sounds really good. I just got it a few hours ago, and I've only been able to spend 30 minutes listening. I will have more time later in the week.

One question. Can you talk a little about the balanced output vs single-ended? Any Makoyi related advantage to use one over the other?

The amp is single ended. The XLR4 is simply a convenience feature. Technically it would be possible to float the transformers to have a "balanced" output, but then you wouldn't be able to have the TRS jack.