2.0 INTRODUCTION AND FEATURES

Quiet Cooling

The S7150 utilizes a fan to cool the amplifier channels, ensuring long-term reliability. To reduce fan noise to an absolute minimum, a thermal sensing and control circuit has been incorporated in the Synthesis S7150 that senses increases in temperature within the amplifier and powers a fan at a speed proportional to that temperature increase. When the S7150 is "loafing", the fan turns very slowly – and quietly. At high listening levels (and the higher operating temperatures this creates within any amplifier), the sensing circuitry causes the fan to turn faster, producing increased cooling. As a result, the fan is never turning faster than necessary, and most of the noise that is generated is masked by the program being listened to.

Comprehensive and Isolated Circuit Protection The S7150 amplifier employs a sophisticated protective circuit (one for each channel) that senses many possible

2INTRODUCTION.0 AND FEATURES

fault conditions, such as shorted loudspeaker wires or excess power demand, and turns the affected channel(s) and their blue front panel indicators off until the fault condition is removed, at which time normal operation is automatically restored. While protection of this sort is not uncommon in today’s well-designed amplifiers, a remarkable feature of the Synthesis S7150’s protective circuits is that they are optically-coupled to the signal circuit; there is no direct electrical connection between the signal path and the protective circuitry.

As a result, there can be no coloration of the music, no interaction between protection and amplification, until certain thresholds are exceeded, at which point the channel(s) turn off completely.

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JBL S7150 user manual Quiet Cooling
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S7150 specifications

The JBL S7150 is a powerful and innovative floor-standing loudspeaker that caters to audiophiles and music enthusiasts alike. This speaker offers a premium audio experience thanks to its cutting-edge technologies, stylish design, and exceptional performance.

One of the most notable features of the JBL S7150 is its advanced driver technology. The speaker is equipped with a large 8-inch low-frequency driver that delivers deep, resonant bass without distortion, allowing users to feel the full impact of their favorite music or movies. Complementing this is a sophisticated 5-inch midrange driver that ensures a smooth transition of sound frequencies, making vocals and instruments sound natural and lifelike. The high-frequency performance is managed by a 1-inch tweeter, which provides crystal-clear highs, ensuring that every detail in a track is heard.

In addition to its high-quality drivers, the JBL S7150 incorporates patented technologies that enhance audio performance. The speaker features Optimized Waveguide Technology that broadens the sweet spot for listening, allowing for a more immersive experience regardless of where the listener is sitting. This technology also minimizes distortion and enhances clarity at higher volumes, making the S7150 an excellent choice for larger rooms or home theater setups.

Connectivity options are another strength of the JBL S7150. It supports both wired and wireless connections, making it easy to pair with various devices. Users can connect via Bluetooth, allowing them to stream music directly from their smartphones or tablets. Additionally, the speaker has standard audio inputs that accommodate traditional audio sources such as CD players and turntables.

The design of the JBL S7150 is sleek and modern, making it an elegant addition to any home. It features a durable cabinet construction that reduces resonance, and the premium finish gives it a sophisticated look that complements various interior styles. The speaker also comes with adjustable feet, ensuring stability and optimal placement in any room.

Overall, the JBL S7150 stands out in the market for its impressive sound quality, advanced technology, and aesthetic appeal. Whether one is listening to music, watching movies, or playing video games, the S7150 delivers an outstanding audio experience that is sure to impress even the most discerning listeners.
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