PreSonus StudioLive Series III SE 24R 40-Channel Digital Rack Mixer

The StudioLive® SE 24R is PreSonus's rackmount response to large–format live mixing and monitoring demands. This 40–channel digital mixer occupies just two rack spaces whilst delivering 24 onboard XMAX–R recallable preamps, 16 FlexMixes, and four dedicated subgroups. Milan–certified AVB networking integrates seamlessly with StudioLive Series III consoles and stageboxes, making it equally suited to monitor world rigs, broadcast studios, or installed venue systems requiring networked audio distribution and control.

The signal path runs on 32–bit floating–point internal processing, with each of the 24 microphone preamps delivering 94 dB signal–to–noise (referenced at +4 dBu, 20 kHz bandwidth, A–weighted) and total harmonic distortion below 0.005% at +4 dBu across the 20–20 kHz spectrum. Line outputs hit +18 dBu into 100 Ohm balanced 1/4” TRS connectors; preamps offer 0–60 dB gain with 65 dB common–mode rejection at 1 kHz. Onboard connectivity spans 64×64 USB 2.0 recording, stereo SD capture (up to 32 GB SDHC), and per–channel source switching across analogue, USB, SD, and AVB streams. Universal Control and QMix–UC enable wireless remote mixing and monitor feeds; the unit also operates standalone or as an auxiliary stagebox.

Capture software integration with Virtual Soundcheck streamlines rehearsal and multitrack documentation workflows without breaking mixer control flow. The SE 24R draws just 35 W continuous power and weighs 4.9 kg, fitting portable touring rigs despite its 24 DCA groups and four dedicated FX mixes. Phantom power supply (+48 VDC ±2 VDC) services condenser microphones; headphone output reaches 100 mW per channel into 60 Ohm loads with 96 dB signal–to noise and 0.01% THD, enabling accurate monitor mixing during live performances.

Features

• 40–channel digital mixer with 24 XMAX–R recallable preamps
• 16 FlexMixes configurable as auxiliary, subgroup, or matrix outputs
• 24 DCA groups for advanced fader control and recall
• 64×64 USB 2.0 audio interface plus onboard stereo SD recording
• Milan–certified AVB networking for StudioLive Series III integration
• Per–channel source switching: analogue, USB, SD, and AVB inputs
• 32–bit floating–point processing; 94 dB mic preamp signal–to–noise ratio
• Universal Control remote mixing and QMix–UC personal monitor application