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