Fidelia is a reference playback system for people who own their music: a complete, inspectable signal path from your files to your DAC, your headphones, or your whole multichannel rig. One purchase, no subscription, no account, no cloud.
Four mastering-grade processors are built in: a ten-band equalizer with direct import of AutoEQ headphone-correction profiles, HeadSpace frequency-dependent crossfeed for natural headphone listening, psychoacoustic dither, and reference sample-rate conversion. Three Audio Unit slots host your own EQ, convolution, or room-correction plugins on a bus up to sixteen channels wide, and bit-perfect exclusive mode bypasses everything for an untouched path to the DAC. The Mac app plays multichannel and surround; formats run from FLAC, ALAC, WAV, and AIFF through native DSD.
Fidelia speaks your network in both directions. It browses Lyrion (Squeezebox), MinimServer, Universal Media Server and other UPnP servers, with the server's library appearing beside your local files — one search, one player. It also plays to any UPnP/DLNA streamer — WiiM, Naim, Denon, FiiO, even HQPlayer's renderer input — bit-perfect or with the full DSP chain applied, gapless.
Fidelia for iPhone and iPad carries the same engine on the go, with CarPlay in the car and Bridge syncing your Mac's library — albums, playlists, presets and settings — over your own Wi-Fi, nothing in a cloud. A free Remote app controls the Mac from the couch.
Both apps are free to try for fourteen days, full-featured, then a one-time unlock. Network playback is a separate one-time unlock; browsing your server is always free. Fidelia first shipped in 2011 and is in active development.
Audiofile Engineering, LLC 
