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Tascam MZ-123BT compact 1U multi-channel, three zone audio mixer for professional installation.

Offering versatile routing, mixing and distribution of up to three channels of music and announcements for a wide range of commercial applications.

There are two mono / stereo (switchable) line inputs on the rear of the unit and a 3.5mm stereo input on the front. This third input can be switched to Bluetooth instead for wireless connectivity.

Each input can be directed to any combination of outputs using the selection buttons on the front, along with individual attenuation for each channel.

Two mic inputs (with switchable phantom power) are provided on the rear with the option of connecting mic 1 via the XLR/TRS input on the front. 

The microphone talkover function lowers the volume of music during an announcment and restores gradually afterwards. The threshold and release time can be adjusted as required.

Headphone monitoring is also avaialble for each input via the headphone socket and selection switches.

Main Features at a Glance

  • Slim rackmount mixer that can flexibly assign background music and mic announcements to three different output zones
  • Built-in Bluetooth receiver for wireless audio playback from smartphones or tablets
  • Bluetooth antenna installed on the front panel ensures a stable wireless connection within the specified range
  • Three stereo line inputs
    • Two RCA unbalanced line inputs on rear panel
    • Bluetooth/Aux input on front panel
    • Gain controls on rear panel
  • Two mic inputs for announcements or moderation
    • Connection via Euroblock connectors on the rear panel
    • Mic 1 can also be connected via the front-panel XLR/TRS combo connector (input level switchable HIGH/LOW)
    • Talkover function automatically lowers background music volume according to mic volume (with rear-panel controls for threshold, time and on/off)
    • PAD, high-pass filter and 48-volt phantom power on each mic input (switchable on/off on the rear panel)
    • Rear-panel controls for gain and three-band EQ
  • Level controls and zone selection buttons on each mic and stereo line input
  • Signal and peak indicators on each mic and stereo line input
  • Three zone outputs with level controls, signal and peak indicators and monitor selection buttons
  • Headphones output with level control for monitoring the zone outputs
  • Compact 1U rackmount size

Additional Information

Equivalent input noise

≤–125 dB(A)

Frequency response

20 Hz – 20 kHz, ±0.5/–1 dB

S/N ratio

≥90 dB



Crosstalk attenuation

≥80 dB

Minimum mic input level

-65 dBu

Maximum output level

+24 dBu


v4.2, A2DP, SBC, AAC, aptX™

Overall dimensions (W x H x D, w/o antenna)

483 mm x 45 mm x 275 mm


3 kg

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