The versatile ZED-420 12-Channel Mixer from Allen & Heath gives you the professionalism and quality you crave, whether you need excellent sound for a live concert, house of worship, theater, sound reinforcement, or other AV application. Delivering the tools you need to take your audio project to the next level, this mixer boasts 4-band EQ, Duopre amps, as well as 16 mic or line inputs plus 2 dual stereo inputs, 4 sub-groups, 6 auxiliary sends, and a 7×2 matrix.
Built into the ZED-420 is a responsive 4-band, swept mid-frequency EQ design at uses MusiQ. Its optimized slope (Q factor) allows you to precision-equalize individual instruments in your band.
The ZED-420 comes with DuoPre pre-amplifiers that use a 2-stage design and carefully controlled gain in each stage. These preamps boast a gain range of 69dB and reliably-even gain control when amplifying a signal from the mixer’s XLR input. Most of the gain comes from the first stage, which keeps unwanted noise to a minimum. Plug line level signals into the preamp’s second stage using the line input jack socket, which results in less noise when using line input or when matching a higher input impedance.
The ZED-420 comes with configurable USB audio inputs and outputs. No need to install external soundcards—just plug in a USB lead and select USB routing on the mixer to get started right away at your recording. This feature gives you CD-quality audio to and from your Mac or PC, while switches and connections via the mixer’s jack socket terminals offer a variety of send/return options. Rounding out the ZED-420’s connectivity options are 2 stereo inputs for MP3/CD players or keyboards, as well as professional XLR stereo outputs and a versatile monitoring section that lets you plug in headphones and/or speakers.
Allen & Heath ZED-420 Features
- 16 mono channels
- 2 dual stereo inputs with 4-band EQ
- Neutrik mic XLR
- Neutrik ¼ 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
- L, R and M main mix outputs
- 2 matrix sections available; can send output to USB
- Individual channel 48V phantom power
- Direct output on every mono channel
- Peak and signal indication on every channel
- Configurable USB stereo audio in/out
- Master level controls on all outputs
- Easy to use layout - all connections and controls on top surface
- ZED-420 12-channel mixer1
- Mains lead1
- Type A-B USB Lead1
- One Year Limited Manufacturer Warranty1
- Operating Levels
- 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
- Inputs
- 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 in to 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
- Analog 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 16bit
- 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
