Below are excerpts from the review:
As we’ve been getting used, ddHIFI once again provides endless fun for music lovers, and TC44a has excellent value, it is priced very low for the kind of detail, driving power, dynamics andpunchiness it offers with all the IEMs in my collection. It allows you to use your better 4.4mm balanced cables, and despite being single ended itself, it has a better sound than some other balanced sources, making it a 10/10 purchase for any music lover looking for a trusty companion.
From: Audiophile Heaven