Description

ZED-428 is excellent for bands, houses of worship, theatres or AV applications. It has a truly professional feature set, which will fit any sound reinforcement application or professional PA hire stock. ZED-428 has 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.

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
    • 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

Specifications

Mixer
Number of Analog Input Channels 28
Number of Mic Preamps 24
Analog Output Channels 1 x Stereo Master Output
1 x Mono Master Output
4 x Mono Bus/Subgroup Output
6 x Mono Aux Send Output
2 x Mono Matrix Output
1 x Stereo Tape/Record Output
1 x Stereo Headphone Output
Faders & Level Adjustment 3.9″ / 100 mm Channel Fader
Meters Main Meter:
2 x 12-Segment LED
Bus Meter:
4-Segment LED
Channel Meter:
2-Segment LED
Signal Processing
Gain/Trim Range Mic Input:
-6 dB to +63 dB
Line Input:
-10 dB to +26 dB
Stereo Input:
-∞ to +10 dB
Fader:
-∞ to +10 dB
Return:
-∞ to +10 dB
Aux:
-∞ to +10 dB
Matrix:
-∞ to +6 dB
EQ Parameters Mono Channels:
High: ±15 dB at 12 kHz (Shelving)
Hi-Mid: ±15 dB at 500 Hz to 15 kHz (Notch/Peak)
Lo-Mid: ±15 dB at 35 Hz to 1 kHz (Notch/Peak)
Low: ±15 dB at 80 Hz (Shelving)
Stereo Channels:
High: ±15 dB at 12 kHz (Shelving)
Hi-Mid: ±15 dB at 2.5 kHz (Notch/Peak)
Lo-Mid: ±15 dB at 250 Hz (Notch/Peak)
Low: ±15 dB at 80 Hz (Shelving)
Mono Channels:
High: ±15 dB at 12 kHz (Shelving)
Hi-Mid: ±15 dB at 500 Hz to 15 kHz (Semi-Parametric)
Lo-Mid: ±15 dB at 35 Hz to 1 kHz (Semi-Parametric)
Low: ±15 dB at 80 Hz (Shelving)
Stereo Channels:
High: ±15 dB at 12 kHz (Shelving)
Hi-Mid: ±15 dB at 2.5 kHz (Notch/Peak)
Lo-Mid: ±15 dB at 250 Hz (Notch/Peak)
Low: ±15 dB at 80 Hz (Shelving)
Filters High-Pass: 100 Hz, 12 dB/Octave
Solo/Mute Mute, PFL per Input Channel
Mute, Solo-in-Place/AFL per Bus
Mute per Master
Built-In Effects None
Digital Audio
Sample Rates 32 / 44.1 / 48 kHz
Bit Depth 16-Bit
Performance
Headroom Analog: +21 dB
USB I/O: +14 dB
Frequency Response Mic Input to Main Output:
20 Hz to 20 kHz +0.5/-1 dB (30 dB Gain)
Line Input to Main Output:
10 Hz to 30 kHz +0.5/-1 dB (Unity Gain)
Stereo Input to Main Output:
10 Hz to 30 kHz +0.5/-1 dB
Max Input Level Mic Input:
+17 dBu
Line Input:
+30 dBu (Mono)
Insert Return:
+21 dBu
Output Level XLR Main Output:
+4 dBu (Nominal)
+27 dBu at Max Gain
Group Output:
+4 dBu (Nominal)
+27 dBu at Max Gain
Aux Output:
-2 dBu (Nominal)
+21 dBu at Max Gain
Matrix Output:
-2 dBu (Nominal)
+21 dBu at Max Gain
Insert Send:
-2 dBu (Nominal)
+21 dBu at Max Gain
Tape/Record Output:
0 dBu (Nominal)
+21 dBu at Max Gain
Direct Output:
0 dBu (Nominal)
+21 dBu at Max Gain
EIN -127 dBu at Max Gain (150-Ohm Input)
Noise Floor Main Output:
-89 dB (24 Channels Routed, Ref +4 dBu, 22 Hz to 22 kHz)
-85 dBu (24 Channels Routed, Ref +4 dBu, 22 Hz to 22 kHz)
THD+N Mic Input to Main Output:
0.004% at Unity Gain (+10 dBu, 1 kHz)
Mic Input to Main Output:
0.014% at +30 dB Gain (1 kHz)
Line Input to Main Output:
0.005% at Unity Gain (0 dBu, 1 kHz)
Stereo Line Input to Main Output:
0.003% at Unity Gain (+10 dBu, 1 kHz)
Connectivity
Analog Inputs 1 x Stereo RCA Coaxial 2-Track Input
1 x XLR 3-Pin Balanced Talkback Input
2 x Stereo RCA Coaxial Unbalanced Aux/Line Input
24 x 1/4″ TRS Unbalanced Channel Insert
4 x 1/4″ TRS Unbalanced Subgroup Insert
2 x 1/4″ TRS Unbalanced Stereo Main Insert
1 x 1/4″ TRS Unbalanced Main Insert
24 x XLR 3-Pin Balanced Mic Input
24 x 1/4″ TRS Balanced/Unbalanced Line Input
4 x 1/4″ TRS Balanced/Unbalanced Line Input (2 Stereo Pairs)
Analog Outputs 1 x 1/4″ TRS Headphone Output
1 x 1/8″ / 3.5 mm TRS Headphone Output
1 x Stereo RCA Coaxial Unbalanced 2-Track Output
24 x 1/4″ TRS Balanced Direct Output
3 x XLR 3-Pin Balanced Main Output
4 x 1/4″ TRS Balanced Subgroup Output
2 x 1/4″ TRS Balanced Matrix Output
6 x 1/4″ TRS Balanced Mono Aux Send
Phantom Power +48 V (Selectable on Individual Inputs)
USB 1 x USB-B 1.1()
USB I/O Capacity 2 x Input / 2 x Output
Power
AC Input Power 100 to 240 VAC, 50 / 60 Hz
Power Consumption 60 W (Maximum)
Physical
Rack Mountable No
Dimensions 36.6 x 5.1 x 22.1″ / 93 x 12.9 x 56 cm
Weight 40 lb / 18.1 kg
Packaging Info
Package Weight 62 lb
Box Dimensions (LxWxH) 42 x 22 x 10.8″

 

Additional information
Brand

Allen & Heath

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