ZONE 624 - Mixer LD Systems - Free user manual and instructions
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| Product type | 4-zone zone mixer |
| Brand | LD Systems |
| Model | ZONE 624 |
| Category | Mixing console |
| Dimensions (W x H x D) | 485 x 132 x 210 mm |
| Weight | 4.66 kg |
| Power supply | 220-250 V AC, 50 Hz |
| Power consumption | 25 W max |
| Fuse | T 500 mAL / 250 V |
| Number of input channels | 8 (2 mic, 6 line) |
| Microphone inputs | 2 (XLR/jack combo + 6.35 mm jack, 12 V phantom power) |
| Line inputs | 6 (RCA, 3.5 mm mini jack, 6.35 mm jack) |
| Line outputs | Master (stereo XLR, RCA, Euroblock), 3 Zones (mono XLR, Euroblock), Record (RCA) |
| Headphone output | 1 x 6.35 mm stereo jack |
| Microphone equalizer | 3-band (Hi, Mid, Low) |
| Master equalizer | 3-band (Hi, Mid, Low) |
| Zone equalizer | 2-band (Hi, Low) with screwdriver adjustment |
| Special functions | Talkover, Cue, Emergency input, Music mute, 100 Hz high-pass filter |
| USB interface | USB 1.1 (2.0 compatible) for 16-bit stereo audio |
| Indicators | LED Signal/Clipping, LED Cue, Master Level (10 segments), Zone Level (5 segments), Power LED |
| Included accessories | Euroblock connectors, power cable, user manual |
| Cleaning | Dry cloth |
| Safety | Follow precautions, do not open, repair by qualified personnel |
| Warranty | Limited manufacturer warranty (duration varies by country) |
| Manufacturer | Adam Hall GmbH |
Frequently Asked Questions - ZONE 624 LD Systems
How to connect a microphone to the ZONE 624?
Use the MIC 1 or MIC 2 inputs on the front or rear panel. The Combo connectors (XLR/6.35 mm jack) on the front accept balanced microphones. Activate the input by pressing the ON button (red LED on). Adjust GAIN and equalizer if necessary.
How to use the Talkover function?
Press the TALKOVER ON button (blue LED). The microphone signal then attenuates other sources. Adjust T/O DAMPING (rear) for attenuation and T/O SENSITIVITY for sensitivity. This function is useful for announcements.
What to do if the Peak LED stays on?
The Peak (PK) LED indicates excessive level. Reduce the GAIN of the corresponding input or the LEVEL of the zone/master. If the LED stays on, lower the volume to avoid distortion.
Can I connect a turntable to this mixer?
Yes, on inputs INPUT 2 and INPUT 5. Press the corresponding PHONO/LINE button to activate the phono preamp. Connect the turntable to the RCA jacks and connect the ground to the ground terminal (55).
How to use the Emergency Input?
Connect an alert system to the EMERGENCY INPUT (Euroblock). When a signal is detected, all other inputs are muted and the signal is sent directly to the Master and Zone outputs, bypassing volume settings. Adjust the level with the LEVEL EMERGENCY INPUT potentiometer (screwdriver).
How to connect the device to a computer via USB?
Connect a USB cable between the USB port (53) of the mixer and your computer. The mixer appears as USB Audio CODEC. To play audio from the computer, select the USB source for INPUT 3 via the USB/LINE button (54).
How to adjust the zone equalizer?
The zone equalizers are located on the rear panel. Use a screwdriver to adjust the EQ HI and EQ LOW potentiometers. In the center (notched) position, the equalizer is inactive. Turn left to decrease, right to increase.
What to do if the fuse blows?
Unplug the device. Replace the fuse only with a fuse of the same type and rating (T 500 mAL / 250 V). If the fuse blows again, consult an authorized repair center.
Can I use the mixer without connecting to mains power?
No, the ZONE 624 requires a mains power supply of 220-250 V AC, 50 Hz. It does not operate on battery. Ensure the power cord is properly connected.
How to clean the device?
Use a dry cloth to clean the casing. Do not use liquids or abrasive products. Unplug the device before cleaning. Avoid liquids entering the interior.
User questions about ZONE 624 LD Systems
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