Piano can work as a 2.0 (all frequencies are passed to LR) as a 2.2 (xover frequency is chosen in GUI) and subwoofer has 2 outputs or as a 2.1 (same as 2.2 but subwoofer is mono).
We are using 2 DAC Ic’s PCM5142 with integrated DSP. The PurePath software from TI is available for download (registration required) and can be used to create specific filters and other audio functions.
The board will come pre-programed as a 2.1 output (but you can create your own custom design and load it the board and can access the xover frequency directly from linux (we made a small app).
Hardware wise, we have split the digital and analog side with LDOs and we feed the analog side using an extremely capable LDO LT3042 which is having ultra low noise and ultra high PSRR.. Basically each board has 4 LDO (2 for each DAC ic) (note that digital side uses cheaper LDOs).
Of course, on the analog side we used only thin film resistors and poly caps in audiopath.
Features
- Piano 2.1 is a Slave DAC (Slave DACs are compatible with Sparky or Kali)
- Dedicated two No’s of 384 kHz/32bit high-quality DAC PCM5142 for best sound quality
- Available with different output connectors: 4 x RCA
- DAC SNR is 112dB
- DAC THD+N @ – 1dBFS are –93dB
- Full Scale Output of DAC is 2.1Vrms
- Dynamic Range of DAC is 112dB
- Sampling Frequency ranges from 8 kHz to 384 kHz
- Ultra-low-noise voltage regulators for optimal audio performance
- Integrated EEPROM for automatic configuration (with write-protection)
Technical Specifications
| Operating Temperature | 0C to 70C |
|---|---|
| Board Size | LWH = 68.7mm * 65mm * 22.2mm |
| Board Weight | 30g |
- Download Product Brochure
- Piano 2.1 Tech Manual
- Purepath Process Flow for Allo Piano 2.1
- Preferred Setup Values For Piano 2.1
- Vana Tech Manual
- Download the DSP Firmware files for Piano DAC Plus (2.1) from https://github.com/allocom/piano-firmware.git
- Images, Drivers & Resources
All Allo products are FINAL SALE. We are not able to provide support on these items. For support, please visit Allo’s customer support forum.
Fast Shipping with Professional Packaging
Due to our longstanding partnership with UPS FedEx DHL as well as other major international carriers, we are able to provide a range of shipping options. Our warehouse staff is highly trained to package your goods exactly according to the specifications we provide. Your items will go through a thorough examination and will be safely packaged prior to being sent out. We deliver to thousands of customers every day from all over the world. The fact that we are determined to become the largest online retailer in the world is obvious. Warehouses and distribution centres can be located in Europe as well as in the USA.
It is important to note that orders with multiple items are subject to a processing period that is based to the particular item.
Prior to shipping, our team will perform an extensive inspection of the products you have ordered. Most orders today are shipped in 48 hours. The expected delivery time will be between 3 and 7 days.
Returns
Due to the multiple parties involved such as the factory and the warehouse, we cannot completely manage our stock. The actual levels of stock can change at any moment. It's possible that you may not receive your order once the order has been made.
Our policy is for 30 days. If 30 days have gone without a trace since the purchase however, we're unable to give you a return or exchange.
You are able to return a product in the event that it is not used and still in the same state as when you first received it. The item must be returned in its original packaging.
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