Review on 2x3WT class D stereo audio amplifier module GF1002 PAM8403 chip with DC 2.5-5V volume control by Micha Micha ᠌

Name: 2x3WT class D stereo audio amplifier module GF1002 PAM8403 chip with DC 2.5-5V volume control
Item: 2x3WT class D stereo audio amplifier module GF1002 PAM8403 chip with DC 2.5-5V volume control
Rating: 5

April 27, 2023

A really necessary purchase, Im glad I found this product.

Assembled, works, satisfied. I use with self-made 4 ohm speakers with car full-range speakers in 8 inches. I do not like separate acoustics, because of dips at some frequencies due to phase shift. Bass is tight, precise, high-definition jazz goes well. I love chamber and organ music, in the first case, separate basses by channels play an important role (because of this, I don’t use the complete 2.1 acoustics with a subwoofer, the sound image is lost), in the second case, you need a very serious margin in terms of speaker power, with five watts per amplifier channel I have about 100 watts per channel in the speaker system.

Pros

Doesn't overheat, works reliably on a five-volt USB charger for a cell phone, which are sold with a built-in voltage regulator, even with mediocre quality in the budget price category, and therefore there is practically no noise. The volume is more than enough for a Hong Kong apartment. "Steps" are not audible, a pair of preamplifier - ADC matched perfectly. It does not heat up, it is reliable, there are no "drying" oxide electrolytic capacitors in the circuit.

Cons

It would be possible to solder the connectors directly on the board, I had to work with a soldering iron and invent something like a case. But these are the requests of a lazy perfectionist.

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