Phantom Power

Adastra ML432 Stereo Mixer

SKU: 953.024

£113.05 + VAT    £135.66 incl. VAT

7 and 8 channel microphone and music mixers

In stock




Adastra ML432 stereo mixer

Rack-mountable 1U mixer with 4 mic inputs and 3 auxiliary inputs. Mic channel 1 has 20V phantom power and adjustable voice-over muting of auxiliary channels. An additional priority input can be connected to a line level input or an external 100V line PA system for emergency paging. Output connections are stereo jack with master bass and treble tone controls. Designed as a master or extension mixer for installed sound systems.

  • 4 balanced microphone inputs
  • +20V phantom power on priority mic input
  • 3 stereo aux inputs
  • Can tap from an existing 100V PA system
  • 24Vdc power option
  • Power supply: 100-240Vac, 50/60Hz (IEC) or 24Vdc (terminals)
  • Fuse: T1AL 250V (mains) or F500mA (24Vdc)
  • Phantom power: +20Vdc (mic1 XLR input only)
  • Inputs : mic: 4 x balanced 6.3mm jack (+XLR for mic1)
  • Inputs : aux: 3 x L+R RCA
  • Inputs : priority: Line level (6.3mm jack), 100V (terminals)
  • Outputs: Left + Right 6.3mm jack (unbalanced)
  • Controls: 4 x Mic level, 3 x Aux level, Treble, Bass, L+R output
  • Rear panel controls: Aux muting level, priority input level
  • Input impedance: 2.2k Ohms (mic/line), 10k Ohms (aux)
  • Frequency response : mic: 130Hz – 21kHz
  • Frequency response : line: 120Hz – 26kHz
  • Frequency response : aux: 50Hz – 35kHz
  • Input sensitivity : mic: -50dBV
  • Input sensitivity : line: -19dBV
  • Input sensitivity : aux: -12dBV
  • Signal to noise ratio : mic: 54dB
  • Signal to noise ratio : aux/line: 58dB
  • THD: 0.05%
  • Dimensions: 482 x 130 x 44mm
  • Weight: 1.43kg

See the ‘User Manuals’ tab on the left of this page – as manufacturers are making instruction sheets and user manuals available for download only and your purchase may not include a printed version.

Additional information

Weight1.43 kg
Dimensions13 × 48.2 × 4.4 cm

4 mic, 3 aux


3 Pin XLR (Female), 6.3mm Jack, RCA Phono, Screw Terminals







Adastra was founded in 1949 and has earned a reputation for high quality public address sound products. Meeting the needs of the commercial PA sector for over 60 years the Adastra name is known for quality and value. Adastra is the choice for 100v line PA sound, zone paging PA and induction loop equipment. The Adastra range includes mixer & slave amplifiers, ceiling, cabinet & horn loudspeakers, desk paging & handheld microphones, equipment racks, cables, stands and accessories. Our professional and commercial sound products, wireless microphones and induction loops are carefully chosen for sale on our website by Sound Services – not everything from every manufacturer is there. Based on feedback, customer reviews and our own observations we list items that are popular, reliable and good value for money. If there are products not shown on our website that you feel we may be able to quote for, please just ask!

User Manuals

What's in the Box?

  • ML series mixer
  • IEC power lead(s)


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