- High-precision HD Equalizer (16,384 discrete bands, Linear-phase FIR Filter)
- 64-bit HD Equalizing mode
- Auto Up-sampling
- Cross-fade Playback
- Display Album Artwork and Lyrics
- Repeat Play (within the current Playlist)
- Resume Play
- Shuffle Play (within the current Playlist)
- Easy to add songs to a Playlist and the βUp Nextβ waiting list
- Combining songs in the HD Library and the iPod Library into single Playlist
- Real-time DSD Conversion
- Wireless Hi-Res Audio Data Transmission via AirDrop
- Supported Formats (Connection with TEAC DACs, or Paid version with non-TEAC DACs): DSF/DIFF, FLAC/ALAC/WAV/AIFF, Ogg Vorbis
- Requires iPhone 4s or late, iPod touch 5th generation of later, iPad 2, iPad mini or later, and iOS 6 or later
- Compatible with HA-P90SD, HA-P5, HA-P50SE, HA-P50 (as of March 2016)
- In-App payment is accessible in the App
- iOS 7 or later is required. If you use the App with an iOS device alone, Hi-Res Audio data 88.2kHz or higher will be converted to 44.1kHz, and delivers analog audio signal from Earphone jack on the iOS device
- High-speed processing is required during the HD equalizing mode. Interrupts may occur on iPhone 4 or older device
- Equalizing and Cross-fade settings are disabled when DoP output mode is selected
- Supported on Paid version. A 64-bit CPU-based iOS device such as iPhone 5s or later is required
- This feature is restricted for some models. Please check our website for more information
- MP3 is accessible via standard iPod Library in iOS devices
- DSD 11.2MHz playback is supported on iPhone 5s or later.