Harman-Kardon GB4 manual Setting Up & Troubleshooting, Initial set-up

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Setting Up & Troubleshooting

Initial set-up

Once you have connected up your system (see the sections on connection and wiring earlier in this manual for guidance) you are ready to set initial positions for the controls on your mixer.

Set up individual input channel as follows:

Connect your sources (microphone, keyboard etc.) to the required inputs and release the MUTE switches. Note: Phantom powered mics should be connected before the 48V is switched on.

Set Master faders at 0, input faders at 0, route the channels to MIX and set power amplifier level to suit the application.

Provide a typical performance level signal and press the PFL button on the first channel, monitoring the level on the bargraph meters.

Adjust the input gain until the meter display is in the amber section, with occasional peaks to the first red LED at a typical maximum source level. This allows sufficient headroom to accommodate peaks and establishes the maximum level for normal operation (but see note below).

Repeat this procedure on other channels as required.

Listen carefully for the characteristic sound of `feedback’. If you cannot achieve satisfactory input level setting without feedback, check microphone and speaker placement and repeat the exercise. If feedback persists, it may be necessary to use a Graphic Equaliser to reduce the system response at particular resonant frequencies.

Note: The initial settings should only be regarded as a starting point for your mix. It is important to remember that many factors affect the sound during a live performance, for instance the channel EQ settings or even the size of the audience!

You are now ready to start building the mix and this should be done progressively, listening carefully for each component in the mix and watching the meters for any hint of overload. If this occurs, back off the appropriate Channel Fader slightly until the level is out of the red segments, or adjust the Mix Master Faders. This procedure will ensure that the mixer is set up correctly, with adequate headroom. If more amplification is needed, adjust the power amplifier level controls.

Troubleshooting

No Power

Is the mains supply present?

Is the mains lead firmly connected?

Check the mains fusing

If only one of the power indicators is illuminated, consult your Soundcraft dealer

Condenser Mic Not Working

Is the 48V turned on?

Is the mic plugged into the Mic input?

Is the mic cable a balanced 3-wire type?

GB4 User Guide

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Contents GB4 User Guide GB4 User GuideGB4 User Guide Contents GB4 User Guide Introduction Key Features Equipment means the equipment supplied with this manual WarrantyGB4 User Guide Safety Symbol Guide InstallationImportant Safety Warnings GB4 User Guide General Wiring Procedures Mains InstallationGeneral Precautions Power CableInitial Wiring Considerations Audio WiringShielding Points to Remember Working Safely with SoundSetting Up & Troubleshooting TroubleshootingInitial set-up Meters not showing any signal Optional External Power SupplyAudio Connector Pinouts Dimensions Block Diagrams Mono Input Stereo Input Talkback and Stereo Returns Group/Aux/Matrix Outputs Master Section Using The Console MID Insert 1/4 TRS Jack Rear ConnectorsSTE1 Pin Ground Signal Hot GB4 Groups Master Mutes C OutputsREC/ALT Outputs Monitoring & PFLPSU Monitor LEDs Rear Connector PanelTalkback Stereo ReturnsJack Typical Specifications GB4 User Guide Mark-up Sheets MIC Gain STE1 STE2 GB4 User Guide

GB4 specifications

The Harman-Kardon GB4 is a sophisticated outdoor speaker designed to enhance audio experiences in outdoor settings. It stands out for its combination of style, durability, and rich sound quality, making it suitable for both casual listening and more intense audio demands during outdoor gatherings.

One of the key features of the GB4 is its rugged design. Built to withstand the elements, it boasts an IP67 rating, which makes it dust-tight and water-resistant. This means you can confidently use the speaker in various outdoor environments, whether it’s a sunny day at the beach or a rainy evening on the patio. The robust construction is complemented by a sleek exterior, allowing it to blend seamlessly into outdoor decor while also making a statement of elegance.

The sound quality of the Harman-Kardon GB4 is another highlight. With advanced audio technologies, including the use of dual passive radiators, the speaker produces a rich and balanced sound that fills outdoor spaces beautifully. Whether listening to music, podcasts, or enjoying a movie night under the stars, users can expect clear highs, pronounced mids, and deep lows. The speaker's 360-degree sound projection ensures that the audio experience is immersive from every angle.

Connectivity is also a strong point of the GB4. Equipped with Bluetooth technology, it allows for easy pairing with a range of devices, including smartphones, tablets, and laptops. The connection is stable, which means you can roam freely while enjoying your favorite tunes without interruption. Additionally, the GB4 supports voice assistants, making it easy to control your music or access information hands-free.

Another innovative feature is its long battery life. The GB4 can provide hours of uninterrupted playback, making it a great companion for all-day picnics or evening gatherings. When it’s time to recharge, the process is quick and efficient, ensuring you won't be away from your music for long.

Overall, the Harman-Kardon GB4 encapsulates the perfect blend of durability, high-quality sound, and modern connectivity. It adds a touch of sophistication to any outdoor setting while delivering audio performance that meets the demands of music lovers and casual listeners alike. With its stylish design and advanced features, the GB4 represents a significant advancement in portable outdoor speakers, ensuring that wherever you go, your sound follows.
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