ALTO TRUEMIX 500

ALTO TRUEMIX 500 Passive Mixer

The Alto Professional TrueMix 500 is a portable mixer with a built-in stereo USB audio interface, designed for home recording, livestreaming, podcasting, and live performance. It features five analog inputs with high-headroom circuitry to ensure minimal noise and distortion.

Channel 1 includes an XLR microphone input for dynamic microphones and a balanced ¼” line input for instruments or other line-level sources. In addition, there are two stereo input channels, each equipped with dual balanced ¼” TRS inputs.

All channels feature a two-band EQ (High and Low) with color-coded control knobs for easy operation. The USB Type-B connection provides fast plug-and-play compatibility with Windows and macOS. The TrueMix 500 is a compact and reliable solution for straightforward audio mixing and recording.

TECHNICAL INFORMATION

Frequency Response

All inputs: 20 Hz – 22 kHz (±1 dB)

THD+N (Total Harmonic Distortion + Noise)

All inputs: < 0.005% (@ 4 dBu, 1 kHz)

Gain Range

Mic input (Channel 1): 0 – 44 dB

Line input (Channel 1): 12 – 30 dBu

Line inputs (Channels 2/3): 0 dBu

Maximum Voltage Gain

74 dB (Mic → Main Out and 2TK Out)

80 dB (Mic → Phones Out)

30 dB (Line → Main Out)

Signal-to-Noise Ratio (SNR)

All inputs: > 110 dBu

Impedance

Mic inputs: 3.9 kΩ

Other inputs: > 10 kΩ

2TK output: 1 kΩ

Other outputs: 120 Ω

Crosstalk

Adjacent inputs: < -80 dB @ 1 kHz

Input to output: < -75 dB @ 1 kHz

Equalization

High: ±15 dB @ 12 kHz

Low: ±15 dB @ 80 Hz

Connections

(2) 1/4” (6.35 mm) TRS outputs

(2) 1/4” (6.35 mm) TRS stereo L/R inputs

(1) 1/4” TRS headphone output

(1) 1/4” TRS mono input

(1) XLR input

(1) Stereo RCA L/R input

(1) Stereo RCA L/R output

(1) USB Type-B

(1) DC power input

Power

18V, 500 mA

Power consumption: 9 W

Dimensions

159.5 × 193 × 66 mm

Weight

0.9 kg