The Alto Professional TrueMix 500 is a portable mixer with a built-in stereo USB audio interface that delivers all the essential features you need for home recording, live streaming, podcasting, or performing. There are five analog inputs with high-headroom circuitry for minimal noise and clipping in your signal. The Mic Input Channel offers an XLR input that’s great for connecting a dynamic mic. This channel also has a balanced ¼” line input for connecting instruments and other line-level signals. There are also two Stereo Input Channels, each with dual balanced ¼” TRS inputs. These inputs are perfect for your line-level audio sources. All channels feature a two-band EQ with color coded knobs that make it easy to dial in your perfect sound when operating in low-light situations. Connecting the TrueMix 500 to your computer is also lightning fast, with plug-and-play connectivity on Windows and macOS. The TrueMix 500 is your perfect companion for no-nonsense audio mixing and recording on the go.

Key Features

• USB I/O for audio playback and stereo recording
• 1/4” Main, Tape, and Headphone outputs
• Mic input channel with 18v phantom power and balanced line input
• Two stereo input channels with balanced 1/4” TRS jacks
• Two-band EQ on all channels
• 2-track inputs w/ assignable routing: Main Mix or Headphone Out
• Extra knob caps included in the box for added customization

General Specifications

• Frequency Response: 20 Hz – 22 kHz (±1 dB)
• THD+N (Total Harmonic Distortion) All inputs: < 0.005% (@ 4 dBu, 1 kHz)
• Gain Range
  • Mic inputs (Channel 1): 0 – 44 dB
  • Line input (Channel 1): 12 – 30 dBu
  • Line inputs (Channels 2/3): 0 dBu
• Max Voltage Gain
  • 74 dB (Mic Input to Main Out and 2TK Output)
  • 80 dB (Mic Input to Phones Output)
  • 30 dB (Line Input to Main Out)
• SNR (Signal-to-Noise ratio) All inputs: > 110 dBu
• Impedance
  • Mic inputs: 3.9 kΩ
  • All other inputs: > 10 kΩ
  • 2TK output: 1 kΩ
  • All other outputs: 120 Ω
• Crosstalk
  • Adjacent inputs: < -80 dB @ 1 kHz
  • Inputs to outputs: < -75 dB @ 1 kHz (stereo L/R, Channel 1, panned hard left or right)
• Equalization
  • High: ±15 dB @ 12 kHz
  • Low: ±15 dB @ 80 Hz
• Connectors
  • (2) 1/4” (6.35 mm) TRS outputs
  • (2) 1/4” (6.35 mm) TRS stereo L/R inputs
  • (1) 1/4″ (6.35 mm) TRS headphone output
  • (1) 1/4″ (6.35 mm) TRS mono input
  • (1) XLR input
  • (1) Stereo RCA L/R input
  • (1) Stereo RCA L/R output
  • (1) USB type-B input
  • (1) DC power input
• Controls
  • (1) Power switch
  • (6) Volume control knobs (1 per input and output)
  • (3) Gain control knobs (1 per channel)
  • (3) EQ Hi control knobs (1 per channel)
  • (3) EQ Low control knobs (1 per channel)
  • (3) Stereo pan control Knobs (1 per channel)
  • (2) Locking switch buttons
• Indicators: (1) Power LED, (3) Peak LEDs, (8) Main Out meter LEDs
• Main Mix
  • Main output: (2) 1/4″ (6.35 mm) balanced TRS, +22 dBu max output
  • 2TK output: (2) unbalanced RCA, 0 dBu max output
  • Headphone output: (1) stereo 1/4″ (6.35 mm) TRS, 160 mW @ 32 Ω
• Power
  • Connection: DC
  • Voltage: 18V, 500 mA
  • Consumption: 9 W
• Dimensions (WxDxH): 159.5mm x 193mm x 66mm / 6.3″ x 7.6″ x 2.6″
• Weight: 0.9kgs / 2lbs