+ Putting the T6 Pro Tube Preamp to the Test 123toid, January 25, 2021January 25, 2021, Reviews, aiyima, review, T6 pro, test, tested, tube preamp, tube preamplifier, tube t6 pro, 0 Check out the Aiyima Tube T6 pro preamp. How does it perform? Is it worth buying? ...