This product has been discontinued.

The Networkable, Rack-mount Mixing and Recording Solution.

Equally at home in churches, schools, live venues, and tours, the StudioLive® RML32AI 32-channel, 25-bus, rack-mount Active Integration digital mixer is a versatile and flexible solution.

The RML32AI mixers offers 24 mic inputs, 8 combo mic/line inputs and is expandable up to 64 channels. Flawlessly integrated with state-of-the-art software, it boasts an integrated 52 x 34-channel recording interface, wired or wireless control via advanced AVB or Dante networking, and multiple control options.

Versatile and Flexible for Live and Recorded Sound.

The RML32AI delivers more DSP power than any other mixer in its class, with no limitations or shared resources, The unique Fat Channel provides compressor, limiter, expander/gate, and parametric EQ on every channel and bus; a highpass filter on each channel; preset library; and and processor settings save/recall and A/B comparison. Four effects processors each have their own dedicated mix bus; included are 15 dedicated 31-band graphic EQs and up to 500 ms of variable delay on the last four mix outputs.

Control the StudioLive RML32AI wirelessly from anywhere in the venue using free Mac®, Windows®, and iOS® software. Control the aux mixes with free software for iOS and Android™ devices. Network it to a StudioLive AI-series front-of-house console, using the rack-mount mixer as a stage box and monitor mixer. Or get hands-on control with our CS18AI control surface.

For complete details and specifications, visit

Key features:

  • 24 locking XLR mic inputs and 8 combo locking XLR mic-¼” TRS line inputs, each with recallable XMAX Class A analog mic preamps (+48v phantom power)
  • 32 internal channels,16 aux/subgroup mix buses, 3 main mix buses (left, right, mono/center), stereo solo bus, four 32-bit floating point FX buses (2 reverb, 2 delay)
  • Dual Fat Channel signal processing on all channels and buses with variable highpass filter, variable lowpass filter on mono/center bus, 4-band parametric EQ, compressor, gate with sidechain and limiter
  • 15 31-band graphic EQs
  • 4 32-bit floating-point effects processors (2 reverb, 2 delay)
  • StudioLive CS18AI AVB control surface available separately
  • Continuously bidirectional, 52-in/34-out, FireWire 800 direct recording interface (24-bit, 44.1​/48/88.2/96 kHz)
  • Stereo tape input (RCA jacks)
  • S/PDIF digital output on removable option card
  • 2 FireWire s800 ports and 1 Ethernet control port with AVB networking on removable option card
  • SL-Dante-Mix option card available separately
  • Use AVB to cascade two RM/RML-series mixers to create up to 64 channels or to connect the RML mixer to a StudioLive ® AI-series front-of-house console
  • UC Surface live mix control software features more than ​30 Filter DCAs, 8 Mute Groups, scene Store and Recall
  • Includes Capture™ one-click recording and Studio One® Artist DAW for Mac® and Windows® and and QMix®-UC aux-control software for iOS® and Android™

Technical Specifications

Computer system requirements:

Below are the minimum computer-system requirements for UC Surface, QMix®-UC, and Studio One®.


  • Mac® OS X 10.8.5 64-bit or later
  • Intel® Core™ 2 Duo processor (Intel Core i3 or faster recommended)
  • 4 GB RAM (8 GB or more recommended)


  • Windows® 7 x64/x86 SP1 + platform update, Windows 8.1 x64/x86, Windows 10 x64/x86
  • Intel Core 2 Duo or AMD Athlon™ X2 processor (Intel Core i3 or Athlon X4 or faster recommended)
  • 4 GB RAM (8 GB or more recommended)

Mac and Windows Systems

  • FireWire 800 port or Thunderbolt port and Thunderbolt-to-FireWire 800 adapter
  • Internet connection
  • Internal or external 7200 RPM storage drive highly recommended
  • 30 GB hard disk space
  • Monitor with 1366x768 resolution


  • iOS 9.3 or later
  • iPad Pro, iPad Air 2, iPad Air, iPad mini 4, iPad mini with Retina display, iPad (4th generation), iPad mini, iPad (3rd generation), iPad 2

Android (QMix-UC)

  • Android 5.0 (Lollipop) or later
  • Android™ smartphone or tablet
Note: The minimum system requirements may differ for DAWs other than Studio One. Please check the requirements for your DAW of choice with its manufacturer.
Note that the speed of your processor, amount of RAM and size and speed of your hard drive will greatly affect the overall performance of your recording system. Also, a more powerful system (faster processor with more RAM) will allow for lower latency (signal delay) than you might experience while monitoring audio signals.

Microphone Preamp

Input Type24 locking XLR Female, balanced; 8 combo locking XLR mic-¼” TRS line
Frequency Response to Direct Output (at unity gain)20-40 kHz, ±0.5 dBu
Frequency Response to Main Output (at unity gain)20-20 kHz, ±0.5 dBu
Input Impedance1 kΩ
THD to Main Output (1 kHz at unity gain)0.005%, +4 dBu, 20-20 kHz, unity gain, unwtd
S/N Ratio to Main Output (Ref = +4 dB, 20 kHz BW, unity gain, A-wtd)94 dB
Common Mode Rejection Ratio (1 kHz at unity gain)65 dB
Gain Control Range (±1 dB)0 dB to +65 dB
Maximum Input Level (unity gain)+22 dBu
Phantom Power (±2 VDC)48 VDC, switchable per channel

Line Inputs

Type¼” TRS Female (via Combo), Balanced
Maximum Input Level (min. gain, 1 kHz@0.5% THD+N)+ 18 dBu, ±0.5 dB
Frequency Response (A-D)20 Hz to 20 kHz, ±0.2 dB
Dynamic Range (min. gain, A-wtd)> 114 dB
Dynamic Range (mid. gain, unwtd)> 105 dB
THD+N (1 kHz, -1 dBFS, A-wtd)< 0.005%
Input Impedance10 kΩ

Tape Inputs

TypeRCA Female, unbalanced (stereo pair)
Maximum Input Level+12 dBu

Main Outputs

TypeXLR Male, balanced
Rated Output Level+24 dBu
Output Impedance100Ω

Mix Outputs

TypeXLR Male, balanced
Rated Output Level+24 dBu
Output Impedance100Ω

Headphone Output

Type¼” TRS Female, active stereo
Maximum Output100 mW/ch. @ 60Ω load
Frequency Response20 Hz – 20 kHz (± 0.5 dB)
THD+N0.01%, 1 kHz, max gain, 20 Hz BW, unwtd
S/N Ratio96 dB, 1 kHz, max gain, 20 Hz BW, unwtd

System Crosstalk

Input to Output-90 dB (Ref = +4 dBu, 1 kHz, unwtd)
Adjacent Channels-87 dB (Ref = +4 dBu, 1 kHz, unwtd)

Noise Gate / Expander

Threshold Range-84 dB to 0 dB
Attack Time0.02s to 500 ms / 0.5 ms
Release Time0.05s to 2s
Expander Attenuation Range2:1 (fixed)
Noise Gate Attenuation Range-84 to 0 dB
Key Filter2nd-order, resonant bypass; Q=0.7
Key ListenOff, 40 Hz to 16 kHz


Threshold Range-56 dB to 0 dB
Ratio1:1 to 14:1
Attack Time0.2 ms to 150 ms
Release Time40 ms to 1,000 ms
Auto Attack and ReleaseAttack = 10 ms, Release = 150 ms
Curve Typeshard and soft knee


Threshold-56 dB to 0 dB / -28 dBFS
Attack20 ms
Hold10 ms
Release20 ms

Parametric EQ

Type2nd-order shelving filter
Low (Lowpass or Bandpass)36 to 465 Hz, ±15 dB
Low Mid (Bandpass)90 Hz to 1.2 kHz, ±15 dB
High Mid (Bandpass)380 Hz to 5 kHz, ±15 dB
High (Highpass or Bandpass)1.4 kHz to 18 kHz, ±15 dB
Q (sweepable for each band)0.1 to 4 / Low Q= 0.55, Hi Q=2.0

Graphic EQ

31-Band 1/3-Octave ControlsCenter frequencies (Hz): 20, 25, 32, 40, 50, 63, 80, 100, 125, 160, 200, 250, 320, 400, 500, 640, 800, 1k, 1.3k, 1.6k, 2k, 2.5k, 3.2k, 4k, 5k, 6.4k, 8k, 10k, 13k, 16k, 20k. Each band has a constant Q.
Gain/Attenuation±15 dB

Digital Audio

ADC Dynamic Range118 dB (A-wtd, 48 kHz)
DAC Dynamic Range118 dB (A-wtd, 48 kHz)
FireWireS800, 800 Mb/s
S/PDIF OutputRCA Female
Internal Processing32-bit, floating point
Sampling Rate44.1, 48, 88.2, 96 kHz
A/D/A Bit Depth24
Reference Level for 0 dBFS+18 dBu


Jitter<20 ps RMS (20 Hz - 20 kHz)
Jitter Attenuation>60 dB (1 ns in, 1 ps out)


Input-Voltage Range90 to 240 VAC
Power Requirements (continuous)200W
Recommended Ambient Operating Temperature0° to 40° Celsius / 32° to 104° Fahrenheit


Height7” (17.78 cm)
Width19” (48.26 cm)
Depth10.5” (26.67 cm)
Weight22 lbs. (8.62 kg)

As a commitment to constant improvement, PreSonus® Audio Electronics, Inc., reserves the right to change any specification stated herein, at any time, without notification.