5 speakers amp in comparison

No noise is generated even at maximum power output via engineers spending a lot of time and effort to optimize the circuit.

ENJOY HIGH-QUALITY AUDIO Dual channel stereo amplifier receiver is perfect for your karaoke, home theater, acoustic sound system, and monitor headphones. Provide you with enough powerful power amplification, which can accommodate 2 sets of speakers

Computer sound card function it can output a signal with better sound quality than the computer to connect to the speaker to play.

High efficiency 90%, 4W load and 5V power supply, 3W (left channel) + 3W (right channel) output power. The efficiency of Class A and Class B power amplifiers is only about 30%, and Class D power is highly regarded under the current green trend.

The BL20A amplifier features 2 Texas Instruments TPA3116 power amplifier chips in its digital power stage, capable of driving speakers up to 100W at 2 in mono channel, with a maximum power output of 200W. The TPA3116 chips come with comprehensive fault protection, including short-circuit, thermal, overvoltage, undervoltage, and DC protection. Faults are reported to the processor to prevent damage during overload conditions, allowing the PCB to be utilized at various power levels.

The potentiometer adjusts the volume with a switch for easy control of the volume, making it ideal for DIY speakers.With a filter inductor, the sound is round and clear.It adopts copper DC connector and fence type terminal. It can withstand large current, no heat, no damage to the wire, good wiring and short circuit.

300w Power Stereo Receivers AK45 digital audio amplifier is fully upgraded design, 300W+300W peak power and 40W+40W rated power, perfect for 4-16 inch passive speakers. This small BT amplifier is perfect for karaoke, home theater and sound system. It is perfect for small apartments, bedrooms, offices, basements and garages. Its compact size design can be easily put into your bookshelf or A V cabinet.

It will work well for home audio-visual equipment and other HiFi speakers, suitable for Amazon echo.

3High efficiency 90% High efficiency 90%, can provide 3W (left channel)+3W (right channel) when using 4 load and 5V power supply.

Adopt imported TPA3116D2 chips, with excellent power amplifier effect.

Friendly Design Includes a Digital LED Display, Bass and Treble Knobs Allow Precise Audio Adjustments, The Compact Amplifier Home Audio Design is Lightweight and Fits into like Bookshelves or Home Stereo System Setups

Good Performance This 5 band EQ preamp equalizer uses a full aluminium alloy case and aluminium knurled knobs with good shielding performance, and all I O interfaces are gold plated to ensure sleek transmission of the original sound and minimise loss.