Description:

1. 15W+15W Audio Amplifier Board

(1) Parameters:

--- Working voltage: DC8-26V, can be operated by DC 12V 24V

--- Output power: 15W stereo (24V 8ohm)/ 10W stereo (12V 8 ohm), if connect 4-ohm or 2-ohm speaker, the power will be automatically limited to 15W

--- Input methods: single-ended (default), difference (to choose by the jumper)

--- Efficiency: >90%

--- THD (total harmonic distortion)&noise: <0.2%

--- Low quiescent current

--- Noise suppression

--- Size: 75.69*41.96mm

--- Materials: high-grade pure black immersion gold circuit board, import WIMA red sound capacitor, each channel large capacity filter capacitor. Special customized pure black copper terminals, gold-plated audio input terminals.

--- Protective functions: input reverse protection, short-circuit protection, over-current protection, over-heat protection, over-voltage protection, low-voltage protection, EMI.

(2) Other functions:

External mute function (MUTE: High level mute, factory default low level)

External turn-off function (SD: Low-level chip turn-off, factory default high level)

To use the mute/sd function, just remove the resistance next to the MUTE welding spot and add a switch between the welding spot under the resistance and the welding spot next to MUTE/SD.

2. Stereo Speaker

(1) Parameters:

Rated power: 15W

Impedance: 4Ω

Sensitivity: 90dB

Effective Frequency: 108Hz-20kHz

Equivalent capacity: 2.5L

Outer diameter: 78mm

Height: 52mm

Hole diameter: 71mm

(2) Power Adapter

Output voltage: DC 12V

Features:

• AMPLIFIER BOARD --- working voltage DC 8-26V; output power 15W stereo, efficiency over 90%; general harmonic distortion noise less than 0.2%.
• BOARD FEATURES --- multi-protections (input reverse connection protection, short circuit protection, over-heat, over-current, over-voltage, under-voltage; EMI is allowed to pass); artificial material (noble black immersion gold circuit board, PAM8620 chip, KEMET speaker capacitor, large-capacity filter capacitor, black copper terminal, gold-plated audio input terminal blocks).
• AUDIO SPEAKER --- rated power 15W; impedance 4 ohm; effective frequency 108Hz~20kHz; sensitivity 90dB; outer diameter 78mm; height 52mm; hole diameter 71mm.
• SPEAKER FEATURES --- anti-magnetic design; blended bomb wave, strong fatigue resistance; high-quality rubber edge.

Package Included:

1x Audio Amplifier Board

2x 15W+15W Speaker

1x 12V Power Adapter

2x Male DC Connector