Here is the ALLO PIANO 2.1 HIFI DAC , a converter using 2 DAC PCM5142 with integrated DSP and processing signals up to 32Bit / 384kHz . The circuit is designed and programmed in mode 2.1, with the possibility of connecting a subwoofer. It is part of the range operating with the ALLO Sparky SBC universe .
The digital part and the analog part have been properly separated. The analog side uses an LDO LT3042 with an ultra low noise and a very high PSRR. Specifically, each circuit has 4 LDOs (2 per DAC).
It is directly compatible with the ALLO VOLT AMP amplifier . These two devices are compatible with the SBC ALLO Sparky or the Raspberry Pi 2 and Pi 3. You can therefore use the DAC PIANO 2.1 HIFI on Raspberry Pi 2 and Pi 3.
In case you want to use it on a Raspberry Pi, remember to switch the button on the PCB (RPI COMPATABILITY) to "ON".
The output of the Subwoofer is adjustable from 60 to 200Hz, only on Max 2 Play .
This DAC PIANO 2.1 HIFI is HAT format and is therefore compatible Raspberry Pi.
It is also compatible with Sparky SBC.
RPI + Mounting Tutorial ALLO KALI + ALLO PIANO 2.1
The DAC ALLO PIANO 2.1 is fully supported by the streamer application Volumio 2
(supported subwoofer filtering) click here:
A technical manual is available in PDF in the download tab.
- 2x DAC PCM5142: 32Bit / 384kHz (Data sheet in attached file below)
- Outputs: 4x RCA
- Signal to noise ratio: 112dB
- THD + N: 93dB
- Output Level: 2.1Vrms
- Dynamic range: 112dB
- Sampling frequency: 8kHz to 384kHz
- Voltage Regulator (Ultra Low Noise)
- Built-in EEPROM for automatic configuration (with write protection)
- Operating Temperature Range: 0 to 70 ° C
- Dimensions: 68.7x65x22.2mm
- Weight: 30g
This product does not come with the black spacers
Example of mounting on a RASPBERRY PI 3 (Sold separately) - GPIO plugged in
Example of installation withc ALLO VOLT AMP, KALI RECLOCKER and SBC SPARKY (+ MULTIPLE CAPACITY) -Sold Separately
Example of installation with ALLO VOLT AMP, KALI RECLOCKER and SBC Raspberry Pi 3 -Sold Separately
Mounting example with ALLO VOLT AMP, KALI RECLOCKER
and SBC SPARKY (+ MULTIPLE CAPACITY)and acrylic box Sparky -Sold Separately