The replaceable 6K4 vacuum tubes design can optimize the circuit. With a wide applied range and practicability, this preamplifier can fit the majority of active speakers and power amplifiers in the market.
eBay
ZK-502MT Bluetooth 5.0 2x50W Stereo Amplifier Board. Powerful and compact subwoofer amplifier with stable Bluetooth 5.0 connectivity, high output power, and wide, dynamic sound. ✅ 1 × Bluetooth Audio Amplifier Module.
eBay
eBay
Pertanto, non sono richiesti costi aggiuntivi. Quelli che supportano solo 100V dovrebbero essere utilizzati in un ambiente a 100V, utilizzando un trasformatore se necessario. Vendiamo anche trasformatori, quindi non esitare a informarti.
eBay
1x Amplifier Module. Input Interface: 3.5mm Audio input. Also note that monitor settings may vary from computer to computer and may distort actual colors. Output Power: 0.1W-5W ;4-32 Ohms. hope you could understand.
eBay
Inputport:2×AudioRCA; 1×AUX; 1×HDMI-compatible. Power amplifier type:HIFI. Amplifier channel:2.1. Frequency Response:20Hz-20KHz. Harmonic distortion:<1KHz 0.05%4W.
eBay
DIY 30W 2 Mini bluetooth4.0 amplifier Wireless amplifier for phone/tablet/TV/Computer, Audio OUT bluetooth receiver. - Adaopt TPA3110 amplifier chip for each channel. - Bluetooth standard protocal: Bluetooth 3.0+EDR.
eBay
Portable speakers are often used for audio amplification for devices like your phone, tablet, laptop, iPhone or portable radio. This little speaker plugs directly into your device and is feather light in weight making it very simple to use.
eBay