PreSonus Studio 68cchat_bubble_outlineFrom real comments

Preamps and loopback stand out as the interface's biggest strengths. Commenters repeatedly highlight the 68c's preamp quality, comparing it favorably to the Focusrite Scarlett line and noting a wide gain range from -15 to +65 dB that handles both passive and active pickups. The loopback function draws particular praise, with multiple users saying it solved routing problems they'd struggled with for over a year using workarounds like Voicemeeter or buggy OBS plugins. Phantom power across all four inputs is also called strong enough to run a Shure SM7B without needing a separate cloudlifter, reinforcing the impression of solid analog performance.

Output routing and channel behavior confuse several users. A number of owners report trouble with the interface's four outputs, finding that outputs 3 and 4 don't reproduce sound through mixers or headphone amps the way outputs 1 and 2 do. Others ask whether channels work independently or get mixed together, and one user found Universal Control only recognizing two channels instead of four. Combined with questions about connecting multiple keyboards or drum mics, this suggests the routing setup isn't always intuitive without deeper research into the software's assignment options.

MIDI recognition and setup friction are recurring pain points. Several users report that MIDI keyboards aren't detected in DAWs like Reaper, forcing them to fall back on older PreSonus interfaces like the AudioBox iTwo that worked fine for MIDI. Separately, buyers describe driver conflicts with Cubase, PC freezes during recording, and confusion registering the unit and its bundled Studio One software, especially when purchased secondhand. One user also noticed noise coming from the included Analog Lab V plugin during playback, adding to a pattern of setup-related frustrations.