Installation and Connections

Speaker Selection

No matter which type or brand of speakers is used, the same model or brand of speaker should be used for the front-left, center and front-right speakers. This creates a seamless front soundstage and eliminates the possibility of distracting sonic disturbances that occur when a sound moves across mismatched front-channel speakers.

Speaker Placement

The placement of speakers in a multichannel home-theater system can have a noticeable impact on the quality of sound reproduced.

Depending on the type of center-channel speaker in use and your viewing device, place the center speaker either directly above or below your TV, or in the center behind a perforated front-projection screen.

Once the center-channel speaker is installed, position the left-front and right-front speakers so that they are as far away from one another as the center-channel speaker is from the preferred listening position. Ideally, the front-channel speakers should be placed so that their tweeters are no more than 60cm above or below the tweeter in the center-channel speaker.

They should also be at least 0.5 meter from your TV set unless the speakers are magnetically shielded to avoid colourings on the TV screen. Note that most speakers are not shielded, even with complete surround sets only the Center speaker may be.

Depending on the specifics of your room acoustics and the type of speakers in use, you may find that imaging is improved by moving the front-left and front-right speakers slightly forward of the center-channel speaker. If possible, adjust all front loudspeakers so that they are aimed at ear height when you are seated in the listening position.

Using these guidelines, you’ll find that it takes some experimentation to find the correct location for the front speakers in your particular installation. Don’t be afraid to move things around until the system sounds correct. Optimize your speakers so that audio transitions across the front of the room sound smooth.

When the AVR is used in 5.1-channel operation, the preferred location for surround speakers is on the side walls of the room, at or slightly behind the listening position. In a 6.1-channel system, a back surround speaker is required, ide- ally placed at the center of the room's rear wall, pointing directly towards the front center chan- nel speaker. The center of the speaker should face you (see below).

As with the side speakers, rear surround speakers should be located so that the bottom of the cabinet is at least two feet higher than the listeners’ ears. The speakers should be no more than six feet behind the rear of the seating area.

Subwoofers produce largely nondirectional sound, so they may be placed almost anywhere in a room. Actual placement should be based on room size and shape and the type of subwoofer used. One method of finding the optimal location for a subwoofer is to begin by placing it in the front of the room, about 15cm from a wall, or near the front corner of the room. Another method is to temporarily place the subwoofer in the spot where you will normally sit, and then walk around the room until you find a spot where the subwoofer sounds best. Place the subwoofer in that spot. You should also follow the instructions of the subwoofer’s manufacturer, or you may wish to experiment with the best location for a subwoofer in your listening room.

A)Front Channel Speaker Installation with Direct-View TV Sets or Rear-Screen Projectors

5.1-Channel System

6.1-Channel System

At least 15 cm from celling

At least 60 cm

INSTALLATION AND CONNECTIONS 15

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JBL AVR 140 owner manual Speaker Selection, Speaker Placement
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AVR 140 specifications

The JBL AVR 140 is an audio receiver that brings the excitement of a cinematic experience right into your living room. Designed with a sleek and modern aesthetic, this receiver combines advanced technology with user-friendly features, making it an excellent choice for both audiophiles and casual users.

One of the standout features of the AVR 140 is its impressive power output. This receiver delivers an impressive 100 watts per channel at 8 ohms, ensuring that it can easily drive large speakers and fill any room with high-quality sound. Its ability to reproduce audio with clarity and depth makes it a popular choice for home theater setups.

The AVR 140 is equipped with a range of audio formats that cater to various listening preferences. It supports Dolby Digital, DTS, and Pro Logic II, allowing users to immerse themselves in multi-dimensional soundscapes. This versatility ensures that whether you're watching movies, listening to music, or playing video games, the audio experience remains engaging.

Connectivity options are abundant with the JBL AVR 140. It features multiple HDMI inputs, allowing you to connect several devices such as Blu-ray players, gaming consoles, and streaming devices all at once. Additionally, it includes composite and component video inputs, ensuring compatibility with a wide variety of devices. The built-in AM/FM tuner also allows users to enjoy radio broadcasts without the need for additional equipment.

The AVR 140 incorporates advanced technologies that enhance the overall audio experience. One notable feature is the Audyssey setup, which calibrates the receiver based on your room's acoustics. This automatic calibration process optimizes speaker placement and ensures balanced sound across all channels.

With a user-friendly interface and an easy-to-navigate remote control, operating the JBL AVR 140 is straightforward. Its on-screen display helps guide users through various settings and configurations, making it accessible even for those who may not be technologically inclined.

In summary, the JBL AVR 140 is a versatile and powerful audio receiver that features a robust power output, support for multiple audio formats, extensive connectivity options, and advanced calibration technologies. Whether for movies, music, or gaming, it delivers an exceptional audio experience that elevates your entertainment setup to new heights. With its combination of quality, performance, and user-friendliness, the JBL AVR 140 stands out as a fantastic choice for anyone seeking to enhance their home audio experience.
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