The Micro BL is no longer produced, but I bagged a new one at around half price of original. I also have the Dac Signature stack/Gryphon/ RME ADI 2FS. The BL will drive anything I have, and of course has the xbass /xspace, providing a subtle but significant sound change, and a good depth/wide soundstage These will in my opinion, are worth every penny, and excellent value. If you have never had one, give it a try. Portable?. barely!. Have attached mine to a phone, and I think it's heavier than a brick!. Recommended
Extremely well made , genuinely portable or very discrete on a desktop. As much power as you will ever need and a warm sound signature . Not the last word in definition but a very enjoyable listen with any headphones available even the hardest to drive LCD4 and HE6 . Very versatile piece of kit and a very easy choice at discounted prices and best for money if you need portability .