621
Item nr.


Maxxter ACT-SPK-107A Mini amplifier

How to build your mini amplifier.

Data for Maxxter ACT-SPK-107A
ProductionChina, 2026.
Semi-
conductors
2x 8002A, 4 rect diodes.
CabinetPlastic. Size 10cm high.
Power230V, 3.5W.

The Design

The Maxxter speakers are a small laptop accessoire. You can also use them with a smartphone, though most people would prefer a wireless (bluetooth) option there.

The 8002A amplifier is supposed to deliver up to 2W in a 4 Omh load, but in this unit, that does not happen. The power consumption is about 3.5W with no signal, and 3.6W at full volume. This speaker set is hardly more than a headphone without the connection bar.


Obtained1/2026 from Kringloop Driebergen.
Condition8.
Value (est.)1€.

This Object

To construct a nice mini amplifier, open the set and make the loudspeaker wire external. Inside is just a small power transformer (size 3cm), a PCB with two 8002A amplifiers, and a 5cm speaker. Voltage across the capacitor (under the board) is 5.8V. I made the leads to the speaker (the one internal and the other in the second cabinet) external, so a larger speaker can be connected. In most PC speaker sets, the sound quality is limited mainly by the small and poor cabinet, and the internal amplifier is quite reasonnable. But in this set, the amplifier is also of quite poor quality, and connecting larger speakers results in a disappointing sound quality.

Part of Gerard's Radio Corner.
Generated by SiteBuilder on 22/1/2026 by Gerard