This is a follow up to the review of the Amazon Basics 80 Watt Class D amplifier. As promised, here is a quick teardown of the unit:
I must say it is much cleaner construction and layout than I imagined. Wiring is nice and neat. Larger components are glued down. There is no manual re-work in sight.
Architecture is simple. The board on the left is a switching power supply which in addition to low voltages, produces + and - 32 volts for the amplifier output stage. Can't see the main silicon that performs the amplification but seems to be a "chip amp" mounted underneath to take advantage of the chassis for cooling. This is much smarter than desktop chip amps which just use a small vertical heatsink instead of using the chassis. In use, the bottom of the unit barely got warm where the chip amp is located.
Electrolytic capacitors are all Yuscon brand. I am not familiar with them but I suspect they are third-tier company.
Overall, this is better than its performance.
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As always, questions, comments, recommendations, etc. are welcome.
Any donations are much appreciated using: https://www.audiosciencereview.com/forum/index.php?threads/how-to-support-audio-science-review.8150/
I must say it is much cleaner construction and layout than I imagined. Wiring is nice and neat. Larger components are glued down. There is no manual re-work in sight.
Architecture is simple. The board on the left is a switching power supply which in addition to low voltages, produces + and - 32 volts for the amplifier output stage. Can't see the main silicon that performs the amplification but seems to be a "chip amp" mounted underneath to take advantage of the chassis for cooling. This is much smarter than desktop chip amps which just use a small vertical heatsink instead of using the chassis. In use, the bottom of the unit barely got warm where the chip amp is located.
Electrolytic capacitors are all Yuscon brand. I am not familiar with them but I suspect they are third-tier company.
Overall, this is better than its performance.
------------
As always, questions, comments, recommendations, etc. are welcome.
Any donations are much appreciated using: https://www.audiosciencereview.com/forum/index.php?threads/how-to-support-audio-science-review.8150/