The new amp add-on, NanoSound MiniAmps, 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 MiniAmps) to be powered by one single microUSB cable (individually if you choose to). It's surprisingly loud and is enough to power a large room or a small lounge as demonstrated.
- Switch On/Off via onboard bottons on the NanoSound DAC
- Onboard relay rated up to 2A
- Powered by single microusb or individually
- 4 layered PCB designed to eliminate internal interference from Pi
Headphone Amp
- Input Voltage: 5V
- Output Power: 24mW @20Ω, 22mw @32Ω
- Signal-To-Noise Ratio (SNR): 100db @20mW
- Total Harmonic Distortion + Noise (THD+N): 0.01% @25mW
Speaker Amp
- Input Voltage: 5V
- Output Power: 5W @2Ω, 3W @4Ω
- Efficiency: 90% @8Ω , 85% @4Ω, 80% @2Ω
- Signal-To-Noise Ratio (SNR): 90db
- Total Harmonic Distortion + Noise (THD+N): 0.15%