xDuoo TA-05 Review – Can This Hybrid Head-Amp Win Your Heart?
xDuoo TA-05 is an affordable hybrid headphone amplifier that aims to bring the benefits of both tubes and solid-state solutions in one package.
AIYIMA T5 6K4 Tube preamp review
AIYIMA T5 is a small preamp with integrated DAC, analog inputs, headphone output and a Bluetooth connection in an affordable package.
FX-AUDIO TUBE 06 – preamp that won’t empty your pockets
TUBE 06 is a tube preamp with both digital and analog inputs. It’s very affordable too and in this review you can read all about it.