Something's (hopefully) coming soon. Seems really promising with nearly every single feature ticking the boxes for a winner DAP.
Have a look at the Features & Specifications :
- ESP32-based, with a WM8523 DAC and an INA1620 amplifier
- 3.5-mm audio output with support for 200 mW at 32 ohms
- Current support for 16-bit audio at 44.1 or 48 kHz (DAC maxes out at 24 bits and 192-kHz )
- Bluetooth audio support (SBC codec only)
- Firmware supports MP3, FLAC, Opus, and Vorbis codecs
- USB Type-C charging and firmware updates. Data transfer (via SAMD21 + tinyusb) in development
- 2200-mAh battery with a standard, 3-pin JST connector
- 4-mA standby current and ~120 mA active current, depending on the headphones and the volume
- 1.8-inch, 160x128 full-color TFT display
- Two hardware buttons and a flexible, capacitive 'clickwheel'
- An ERM haptic motor
- Uses a standard, SDXC card for storage. Available up to 2 TB
- Firmware based on ESP-IDF, written in C++17
- A pretty cool retro transparent enclosure
But most importantly :
Open SourceThe Software, Firmware, and Hardware design files will be available.
Possibly the best DAP for the next 10 years.
More info here :
https://www.crowdsupply.com/cool-tech-zone/tangara