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Adastra ML432 4-Mic 1U Rack Mixer

£18999
The RRP is the manufacturer's recommended retail price of the item.
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Description

The Adastra ML432 is a 1U rack-mountable mixer built for installed sound systems. It gives you four balanced microphone inputs on 6.3mm jacks, with an XLR fitted to mic 1 that also carries +20V phantom power for a condenser paging or voice-over mic. Alongside these you get three stereo auxiliary line inputs on L+R RCA connectors, so you can bring in background music sources or other line-level equipment without running short on channels.

Mic channel 1 doubles as a priority input with adjustable voice-over muting, ducking the auxiliary channels when someone speaks. There is a separate priority input too, which accepts either a line-level signal on a 6.3mm jack or a connection from an existing 100V line PA system for emergency paging. That makes the ML432 useful either as a master mixer in its own right or as an extension mixer feeding a larger setup. Outputs are stereo on 6.3mm jacks, with master bass and treble tone controls to shape the overall sound.

Front-panel controls cover the four mic levels, three aux levels, treble, bass and the left and right output. Aux muting level and priority input level sit on the rear panel where they can be set and left alone. The mixer runs from 100-240Vac mains via IEC, or from a 24Vdc supply on terminals for battery-backed or vehicle use. It measures 482 x 130 x 44mm and weighs 1.43kg, so it fits a standard 19-inch rack with room to spare behind it.

Specification
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 482mm x 130mm x 44mm
Weight 1.43KG
Downloads

Product Manual

Frequently Asked

How many inputs does the ML432 have?

Four balanced microphone inputs and three stereo auxiliary line inputs, plus a separate priority input for line level or 100V paging.

Which input has phantom power?

Only mic 1, via its XLR connector, provides +20V phantom power. The other three mic channels use 6.3mm jacks without phantom power.

Can it work with a 100V line PA system?

Yes. The priority input has 100V terminals so you can tap from an existing 100V line PA system for emergency paging.

What are the output connections?

Left and right 6.3mm jack outputs, unbalanced, with master bass and treble tone controls on the front panel.

Can it run without mains power?

Yes. As well as 100-240Vac mains through the IEC socket, it accepts a 24Vdc supply on terminals for backup or off-grid use.

Will it fit a standard rack?

It is a 1U unit measuring 482 x 130 x 44mm, so it mounts in any standard 19-inch rack.

Shipping & Returns

Delivery UK delivery is £14.99, and delivery is free on all orders of £99 or more, in the UK and internationally.

Returns If you change your mind, you have 14 days from delivery to tell us, and a further 14 days to send the goods back. Return postage for a change-of-mind return is paid by you. Change-of-mind returns are subject to an inspection and handling deduction. See our full returns policy.

To arrange a return, call us on 020 8149 5199 or use our contact page.

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    Description

    The Adastra ML432 is a 1U rack-mountable mixer built for installed sound systems. It gives you four balanced microphone inputs on 6.3mm jacks, with an XLR fitted to mic 1 that also carries +20V phantom power for a condenser paging or voice-over mic. Alongside these you get three stereo auxiliary line inputs on L+R RCA connectors, so you can bring in background music sources or other line-level equipment without running short on channels.

    Mic channel 1 doubles as a priority input with adjustable voice-over muting, ducking the auxiliary channels when someone speaks. There is a separate priority input too, which accepts either a line-level signal on a 6.3mm jack or a connection from an existing 100V line PA system for emergency paging. That makes the ML432 useful either as a master mixer in its own right or as an extension mixer feeding a larger setup. Outputs are stereo on 6.3mm jacks, with master bass and treble tone controls to shape the overall sound.

    Front-panel controls cover the four mic levels, three aux levels, treble, bass and the left and right output. Aux muting level and priority input level sit on the rear panel where they can be set and left alone. The mixer runs from 100-240Vac mains via IEC, or from a 24Vdc supply on terminals for battery-backed or vehicle use. It measures 482 x 130 x 44mm and weighs 1.43kg, so it fits a standard 19-inch rack with room to spare behind it.

    Specification
    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 482mm x 130mm x 44mm
    Weight 1.43KG
    Downloads

    Product Manual

    Frequently Asked

    How many inputs does the ML432 have?

    Four balanced microphone inputs and three stereo auxiliary line inputs, plus a separate priority input for line level or 100V paging.

    Which input has phantom power?

    Only mic 1, via its XLR connector, provides +20V phantom power. The other three mic channels use 6.3mm jacks without phantom power.

    Can it work with a 100V line PA system?

    Yes. The priority input has 100V terminals so you can tap from an existing 100V line PA system for emergency paging.

    What are the output connections?

    Left and right 6.3mm jack outputs, unbalanced, with master bass and treble tone controls on the front panel.

    Can it run without mains power?

    Yes. As well as 100-240Vac mains through the IEC socket, it accepts a 24Vdc supply on terminals for backup or off-grid use.

    Will it fit a standard rack?

    It is a 1U unit measuring 482 x 130 x 44mm, so it mounts in any standard 19-inch rack.

    Shipping & Returns

    Delivery UK delivery is £14.99, and delivery is free on all orders of £99 or more, in the UK and internationally.

    Returns If you change your mind, you have 14 days from delivery to tell us, and a further 14 days to send the goods back. Return postage for a change-of-mind return is paid by you. Change-of-mind returns are subject to an inspection and handling deduction. See our full returns policy.

    To arrange a return, call us on 020 8149 5199 or use our contact page.