It doesn’t take long to realize that this amp is nowhere near as good as its namesake. To start off with, the product description includes such gems as “Class D is better than Class T”….which is patently impossible considering Class-T is a subset of Class-D.
This amp has less than half of the raw power of the 2020A+. The 2020A at 100% volume both on the input signal and the amp is just loud enough to be uncomfortable with the HPMs, but even at that volume the sound doesn’t “fill” a 15’x15’ room. It sounds thin, far away, fake. The real Tripath drives the HPMs to fill the room with rich sound at comfortable listening levels and even at background levels you can talk over. For raw power, the real Tripath amps get well into “hearing protection required” territory well before maxing out either the input signal or amp volume. It’s like the difference between sitting right in front of the band in a small venue (the real Tripath) or being in the parking lot outside a concert hall (this thing).
Looking under the hood, it’s a completely different board than its namesake. The main chip is a YAMAHA YDA138 that has been rebadged as LP2020-A 1501. They even went as far as putting Lepy branded covers over the output filter inductors.
Googling around, some folks claim that the Yamaha chip used here actually does a good job if you setup its supporting circuitry correctly. If I ever care enough if the future maybe I’ll play with swapping components, but for the moment, I’m going with the idea that the amp should perform well as shipped.
|Amplifier Chip||YAMAHA YDA138|
|Availability||~$25 on Amazon|
|Face Text||Lepy Stereo Class-D Digital Audio Amplifier|
|Board Text||Lepy LP-2020A 170504PCB MADE IN BUKANG|
|Right Channel||Top / Red Jack|
|Left Channel||Bottom / White Jack|
|Input Power Label||DC12V3A|
|Included Power Supply||BK-40W-13.5Us1130905 13.5V/3A|