The new amp add-on board for NanoSound DAC, NanoSound Amp^2 (Pronounced as "Amp Square"), include both a headphone amplifier as well as a very efficient 5W speaker amplifier! It runs very cool due to its up to 90% efficiency allowing the whole unit (Raspberry Pi + NanoSound DAC + NanoSound Amp^2) to be powered by one single microUSB power supply (individually if you choose to). It's surprisingly loud, and is enough to power a large room or a small lounge. Specifications: * Switch On/Off via onboard bottons on the NanoSound DAC * Onboard relay rated up to 2A * Powered by single microusb or individually Headphone Amp * Input Voltage: 5V * Output Power: 24mW @20?, 22mw @32? * Signal-To-Noise Ratio (SNR): 100db @20mW * Total Harmonic Distortion + Noise (THD+N): 0.01% @25mW Speaker Amp * Input Voltage: 5V * Output Power: 5W @2?, 3W @4? * Efficiency: 90% @8? , 85% @4?, 80% @2? * Signal-To-Noise Ratio (SNR): 90db * Total Harmonic Distortion + Noise (THD+N): 0.15% Downloads NanoSounds Amp^2 Information Installation Guide https://elecena.pl/product/22717158/nanomesher-nanosound-amp-2-discontinued 2023-03-07 https://elecena.pl/product/22717158/nanomesher-nanosound-amp-2-discontinued 2023-03-17 https://elecena.pl/product/22717158/nanomesher-nanosound-amp-2-discontinued 2023-12-27 https://elecena.pl/product/22717158/nanomesher-nanosound-amp-2-discontinued 2024-09-19