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Allen & Heath ZED-420 16-Channel Analog USB Mixer

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$600 (21%)

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This member from Allen & Heath's ZED 4 BUS roster is the ZED-420, ideal for bands, houses of worship, theatres or AV applications and other live sound and recording uses. The ZED-420 is graced with a truly professional feature set, which will fit any sound reinforcement application and professional PA hire stock. ZED-420 has Configurable USB audio in/out makes it easy to capture stereo recordings, 16 mic or line inputs plus 2 dual stereo inputs, 4-band EQ with MusiQ, 4 sub-groups, 6 auxiliary sends and a 7×2 matrix.

The USB audio flexibility means no clumsy efforts with soundcard inputs, only to find that the levels are all wrong and noisy. Just plug in a USB lead to your ZED, select the USB routing on the mixer and the device on your computer and that’s it! CD quality audio to and from your PC or Mac. The ZED-420 has a tuned 4-band EQ taken from the acclaimed A&H GL2200 mixer, utilizing MusiQ – with optimised slope (or Q factor) for equalising individual instruments.

And based on the proven pre-amps from the hugely successful PA series, ZED-420 has DuoPre pre-amps, which use a two stage design, with carefully controlled amounts of gain in each stage. When amplifying the signal from the XLR input, the gain range is huge – 69dB of range to be exact – and is very evenly distributed around the gain control, meaning better control of signal level.


  • 16 mono channels
  • 2 dual stereo inputs with 4-band EQ
  • Neutrik mic XLR
  • Neutrik 1/4 inch jacks
  • Channel insert
  • Super wide gain ‘DuoPre’ mic line input
  • 4-band EQ with 2 swept mids and in/out switch
  • Illuminated mute
  • Sound image pan
  • Illuminated PFL & peak warning indicator
  • ALPS 100mm faders
  • 6 auxiliary sends (2 pre, 2 post, 2 pre/post)
  • 4 sub groups fed from each channel
  • All inputs with level control
  • 12 bar meters


  • Inputs:
    • Mono channel (XLR) Input +6 to -63dBu for nominal (+17dBu in max)
    • Mono channel Line Input (Jack socket) +10 to -26dBu (+30dBu maximum)
    • Insert point (TRS Jack socket) 0dBu nominal +21dBu maximum)
    • Stereo Input (Jack sockets) 0dBu nominal (control =Offto +10dB)
    • Stereo Input (phono sockets) 0dBu nominal (control =Off to +10dB)
    • 2 Track Input (phono sockets) 0dBu nominal +21dBu maximum
  • Outputs:
    • L, R & Mono Outputs (XLR) +4dBu nominal. +27dBu maximum
    • L, R & M Insert (TRS Jack socket) -2dBu nominal +21dBu maximum
    • Group Outputs (Jack sockets) +4dBu nominal. +27dBu maximum
    • GroupInsert (TRS Jack socket) -2dBu nominal +21dBu maximum
    • Aux Outputs (Jack sockets) -2dBu nominal +21dBu maximum (Bal Option +4)
    • Matrix Outputs (TRS Jack socket) -2dBu nominal. +21dBu maximum. (Bal Option +4)
    • 2 Track Output (phono sockets) 0dBu nominal. +21dBu maximum.
    • Direct Out (TRS Jack socket) 0dBu nominal. +21dBu maximum.
  • Frequency Response:
    • Mic in to Mix L/R Out, 30dB gain +0.5/-1dB 20Hz to 20kHz
    • Line in to Mix L/R Out 0dB gain +0.5/-1dB 10Hz to 30kHz
    • Stereo in to Mix L/R Out +0.5/-1dB 10Hz to 30kHz
  • THD+N:
    • Mic in to Mix L/R Out, 0dB gain 1kHz +10dBu out 0.004%
    • Mic into Mix L/R Out, 30dB gain 1kHz 0.014%
    • Line in to Mix L/R Out 0dB gain 0dBu 1kHz 0.005%
    • Stereo in to Mix L/R Out 0dB gain +10dBu 1kHz 0.003%
  • Headroom:
    • Analogue Headroom from nominal (0Vu) 21dB
    • USB in & out headroom from nominal (0Vu) 14dB
    • USB Audio CODEC (Coder/Decoder)
    • USB Audio In/Out USB 1.1 compliant 16-bit
    • Sample Rate 32, 44.1 or 48kHz
  • Noise:
    • Mix Noise, LR out, 16 channels routed, Ref +4dBu, 22-22kHz -90dB (-86dBu)
    • Mix Noise, LR out, 24 channels routed, Ref +4dBu, 22-22kHz -89dB (-85dBu)
    • Mix Noise, LR out, 32 channels routed, Ref +4dBu, 22-22kHz -88dB (-84dBu)
    • Mic Pre EIN @ max gain 150R input Z 22-22kHz -127dBu
  • Dimensions (HxWxD): 5.08" x 28.2" x 22.1"
  • Weight: 31 lbs

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