Talkback

The talkback mic input is on the rear connector panel.

The level of the talkback mic signal is controlled by the LEVEL pot (35). The signal is the fed to all groups, aux 1-2, aux 3-4, aux 5-6 and aux 7-8 using the appropriate buttons (36).

Stereo Returns

There are two stereo return channels. The connectors are 1/4” jacks on the rear connector panel.

Each has its own level control (37), and each may be routed to the L-R main mix or to groups 1- 2 for Stereo Return 1 or to groups 3-4 for Stereo Return 2 via the appropriate switches (38).

PSU Monitor LEDs

These LEDS (39) confirm the presence of the correct voltage on the +8V and the +/-17V power rails in the console.

Rear Connector Panel

INS

INS

INS

INS

T/B MIC

R MNTR

L

MIX C

MIX L

GRP 3

GRP 1

 

 

 

 

L

L

 

INS

INS

INS

 

 

 

 

 

L

 

 

 

REC/ALT

2 TRK IN

OUT

R

RR

MIX R

GRP 4

GRP 2

MTX4

MTX3

MTX2

MTX1

AUX4

AUX3

AUX2

AUX1

R STE RTN2 L

R STE RTN1 L

AUX8

AUX7

AUX6

AUX5

T/B MIC (3-pin female XLR)

Pin 1 Ground

Pin 2 Signal Hot

Pin 3 Signal Cold

MIX L, R & C OUTPUTS (3-pin male XLRs)

Pin 1 Chassis

Pin 2 Signal Hot

Pin 3 Gnd

GB4 User Guide

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Image 33
Harman-Kardon GB4 manual Rear Connector Panel, Talkback, Stereo Returns, PSU Monitor LEDs

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.