LD Systems ZONE 423

The ZONE 423 is a full featured zone mixer with 4 line and 2 microphone channels, that can be assigned to a master and a zone output, as well as inputs for an external emergency announcement system and remote-controlled switching mute. Through versatile connectivity, the compact 2U rack device is the perfect control centre for PA systems in food outlets, clubs, hotels, fitness centres, and is also excellent for presentations and DJs.

In addition to the two balanced microphone inputs with variable Gain and Talkover level,12V-phantom power, and a shared 3-Band-EQ, the ZONE 423 offers Line, Phono-, and Aux-stereo connections in RCA format, a FOH-input with balanced stereo jack plugs as well as a USB and 3.5mm mini jack. The USB-port is used as a stereo input and output and allows the mixer to be used as an external audio interface. The four input channels have individual gain controls with signal and peak value display, 45 mm faders for adjusting the volume and cue buttons.

The master and zone sections each have their own EQ, balanced XLR and unbalanced RCA outputs: the master output via terminal block connectors and the zone output using a mono sum switch, and 100 Hz high-pass filter. The stereo level indication can be set to master or zone, and the maximum output level can be preset for both on the back of the mixer. In addition to an adjustable headphone connection for pre-listening, the ZONE 423 also has a recording output.

• Product type Mixers
• Weight 3,3 kg
• Height 89 mm
• Width 483 mm
• Depth 210 mm
• Frequency response 20 - 40000 Hz
• Type stereo
• Accessories (included) Power cord, terminal blocks
• Operating voltage 220 - 250 V AC, 50 Hz
• Power consumption 22 W
• Headphones ouput 1
• Mains connector IEC power connector
• Fuse T 500 mAL / 250 V
• Line input connectors input 4: 4 x RCA + 2 x 6.3 mm jack, Input 1: 2 x RCA + 3.5 mm stereo jack + USB, input 2 + 3: 4 x RCA
• Line outputs 3 (Master - Stereo, Zone - Stereo/Mono, Rec - Stereo)
• Total Input Channels 6 (2x Mic, 1x Line/Aux, 2x Line/Phono, 1x Line/FOH)
• Number of Zones 2 (Master, Zone)
• Installation Height 2 U
• Additional Display Elements power LED
• Microphone channels 2 (with phantom power 12 V)
• Microphone Channel Connections 6.3 mm stereo jack (balanced), XLR
• Microphone channel controls 1 x EQ Hi, 1 x EQ Low, 1 x Talkover, 1 x Talkover Level, Gain, On / Off
• Microphone Channels Display Elements On-LED
• Microphone Channels Input Impedance 4 kOhm
• Microphone Channels Input Sensitivity 8 mV
• Microphone Channels THD 0.07%
• Line Channels 4 (Input 1: USB/Line, Input 2 + 3: Line/Phono/CD, Input 4: Line/FOH)
• Line Channel Controls Cue, Enable FOH, Gain, level, Source
• Line Channel Display Elements Cue-LED, Signal/0 dB-LED
• Line Channel Input Impedance (Phono) 60 kOhm, 6 kOhm
• Line Channels Input Sensitivity (Phono) 10m V, 1 V
• Line Channels THD (Phono) 0.05%, 0.03%
• input sensitivity AUX/Line 3 V
• Output Connectors Master 2 x XLR (balanced), RCA (x2), terminal block
• Master Controls EQ Hi, EQ Low, EQ Mid, level, Max. Level
• Master Display Elements 2 x 10 segment level meter (switchable Master/Zone)
• Master Output Levels (balanced) 21 dBu, (unbalanced) 18 dBu
• Zone Output Connections 2 x XLR (balanced), RCA (x2), terminal block
• Zone Controls 100 Hz High Pass, EQ Hi, EQ Low, level, Max. Level, mono, Source Input 2 - 4/Mix
• Zone Display Elements 2 x 10 segment level meter (switchable Master/Zone)
• Zone Output Levels (balanced) 21 dBu, (unbalanced) 18 dBu
• Output Connections Rec 2 x RCA
• Headphone Out Port 6.3 mm TRS
• Headphone Output Controls Cue Volume
• Headphone Output Voltage (@ 32 Ohm) 1.2 V
• Additional Inputs 2 (Emergency Input, Output Mute)
• Connections Additional Inputs terminal block
• Additional Input Controls Level Emergency Input
• Input Sensitivity Emergency Input 5 V
• Additional Controls power switch