Allen & Heath ZED-428 24-Channel Analog USB Mixer

The ZED-428 from Allen & Heath is a 4 Bus Mixer for Live Sound and Recording making it suitable for bands, houses of worship, theatres or AV applications. With its professional feature set, the ZED-428 will fit any sound reinforcement application or professional PA hire stock. ZED-428 comes with a configurable USB audio in/out, making it easy to capture stereo recordings, plus 24 mic/line inputs, 2 dual stereo inputs, 4-band EQ with MusiQ, 4 sub-groups, 6 auxiliary sends and a 7×2 matrix.

The included 4-band EQ is taken from the acclaimed Allen & Heath GL2200 mixer, utilizing MusiQ – with optimised slope (or Q factor) for equalising individual instruments. Another highlight are the 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.

And getting audio to and from a computer easily is now a common requirement for live sound and music production. The way this has been implemented on ZED is super-flexible and super-easy! No longer do you need to fiddle around the back of your PC to get to the soundcard inputs, only to find that the levels are all wrong and noisy. Now you 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!

Features

• 24 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

Specifications

• 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 = Off to+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
  • Group Insert (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 0dBu1kHz 0.005%
  • Stereo in to Mix L/R Out 0dB gain +10dBu 1kHz 0.003%
• Headroom:
  • Analog Headroom from nominal (0Vu) 21dB
  • USB in & out headroom from nominal (0Vu) 14dB
  • USB Audio CODEC (Coder/Decoder)
  • USBAudio 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: 5.08" H x 36.6" W x 22.1" D
• Weight: 40 lbs