The Kingrex T20U amplifier with the TA2020 chipset has some additional power which allows for more flexibility when choosing loudspeakers. You can easily reach acceptable volume levels comparable to live performances in medium spaces with loudspeaker sensitivity as low as 86db. Sound is very well articulated and the sound stage is wide, representing a lot of space around the instruments and vocals. The frequency range is also very precise from the right down to the lows. The excellent build quality, finish of the amp and PSU is immediately apparant as well.
The T20U includes an integrated DAC for USB input that uses the Burr-Brown OPA2604AP for low pass filter and Texas Instruments' low-noise JFET-input TL072CP as a DC servo . The op-amps are socketed which makes them easy to swap out or replace.
Included is an AC/DC universal auto-switching type adapter that adapts to worldwide voltages (100 to 240v). DC output ranges from 12.17v to to 12.37v.
Also included is a User Guide & Manufacturer's 1-year Limited Warranty.
6m/m thickness aluminum face plate and aluminum button switch using audio capacitance.
W/ USB INPUT
This power supply unit features a 48VA toroidal transformer coupled to a full fledged regulatory circuit with eight audio grade aluminum electrolytic capacitors: 5 x 2200uF at AC input stage and 3 x 4700uF at DC output stage.
The PSU provides an abundant reserve to meet the demand when low frequency transients draw on high-current voltage. 6moons had the following observations about the PSU:
“When the PSUs were added to the pot musicality thickened. There was more warm air illing up a more expansive soundstage. Bass got deeper the midrange turned proportionally more pronounced to make the overall harmonics even richer.”
Hi Fi World magazine: "Consequently, I felt this was as good a time as any to switch to the upgrade PSU, which ad been sat beside the T20 on the shelf quietly warming up, and this improved things by quite a decent margin. A proper image appeared with depth, a good scale and nice sense of atmosphere."
