GLOSSARY OF AUDIO TERMS

AC. Abbreviation for alternating current.

Active crossover. Uses active devices (transistors, ICs, tubes) and some form of power supply to operate.

Amplitude. The extreme range of a signal. Usually measured from the average to the extreme.

Arc. The visible sparks generated by an electrical discharge.

ATF. The abbreviation for advanced thin film.

Bass. The lowest frequencies of sound.

Bi-Amplification. Uses an electronic crossover, or line- level passive crossover, and separate power amplifiers for the high and low frequency loudspeaker drivers.

Capacitance. That property of a capacitor which determines how much charge can be stored in it for a given potential difference between its terminals, measured in farads, by the ratio of the charge stored to the potential difference.

Capacitor. A device consisting of two or more conducting plates separated from one another by an insulating material and used for storing an electrical charge. Sometimes called a condenser.

Clipping. Distortion of a signal by its being chopped off. An overload problem caused by pushing an amplifier beyond its capabilities. The flat-topped signal has high levels of harmonic distortion which creates heat in a loudspeaker and is the major cause of loudspeaker component failure.

CLS. The abbreviation for curvilinear linesource.

Crossover. An electrical circuit that divides a full bandwidth signal into the desired frequency bands for the loudspeaker components.

dB (decibel). A numerical expression of the relative loudness of a sound. The difference in decibels between two sounds is ten times the Base 10 logarithm of the ratio of their power levels.

DC. Abbreviation for direct current.

Diffraction. The breaking up of a sound wave caused by some type of mechanical interference such as a cabinet edge, grill frame or other similar object.

Diaphragm. A thin flexible membrane or cone that vibrates in response to electrical signals to produce sound waves.

Distortion. Usually referred to in terms of total harmonic distortion (THD) which is the percentage of unwanted harmonics of the drive signal present with the wanted signal. Generally used to mean any unwanted change introduced by the device under question.

Driver. See transducer.

Dynamic Range. The range between the quietest and the loudest sounds a device can handle (often quoted in dB).

Efficiency. The acoustic power delivered for a given electrical input. Often expressed as decibels/watt/meter (dB/w/m).

ESL. The abbreviation for electrostatic loudspeaker.

Headroom. The difference, in decibels, between the peak and RMS levels in program material.

Hybrid. A product created by the marriage of two different technologies. Meant here as the combination of a dynamic woofer with an electrostatic or ATF transducer.

Hz (Hertz). Unit of frequency equivalent to the number of cycles per second.

Imaging. To make a representation or imitation of the original sonic event.

Impedance. The total opposition offered by an electric circuit to the flow of an alternating current of a single frequency. It is a combination of resistance and reactance and is measured in ohms. Remember that a speaker’s impedance changes with frequency, it is not a constant value.

18 Glossary of Audio Terms

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Fresco Speaker user manual Glossary of Audio Terms
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Speaker specifications

The Fresco Speaker is a remarkable innovation in the world of audio technology, designed to deliver a premium listening experience while integrating seamlessly into any lifestyle. This well-crafted speaker combines advanced features, a sleek aesthetic, and cutting-edge technology to stand out in a crowded market.

One of the main characteristics of the Fresco Speaker is its immersive sound quality. It employs a unique multi-driver configuration that ensures a balanced audio output across all frequencies. With dedicated woofers, mid-range drivers, and tweeters, listening to music, podcasts, or watching movies transforms into a captivating experience. The speaker also supports high-resolution audio formats, allowing audiophiles to enjoy their favorite tracks in the best possible quality.

The Fresco Speaker utilizes Bluetooth 5.0 technology for wireless connectivity, making it easy to stream music from smartphones, tablets, or laptops. The extended range ensures a stable connection, while low latency enhances synchronization with video content. Moreover, the speaker supports multiple pairing options, allowing users to connect two or more Fresco Speakers for a richer soundstage in larger spaces.

Another standout feature of the Fresco Speaker is its integrated voice assistant compatibility. Users can easily control the speaker with voice commands, whether it's adjusting the volume, changing tracks, or accessing information. This hands-free operation is particularly convenient for multitasking or when the phone is out of reach.

Battery life is another area where the Fresco Speaker excels. With an impressive playtime of up to 20 hours on a single charge, it caters to both indoor listening and outdoor adventures. Its robust build ensures it can withstand various environments without compromising on performance.

Aesthetically, the Fresco Speaker is designed with style in mind. Its modern design incorporates premium materials, providing an elegant touch that complements any decor. Available in multiple colors, users can choose a variant that suits their personal style.

In conclusion, the Fresco Speaker combines high-quality audio performance with advanced technologies and stylish design. With its multi-driver configuration, Bluetooth 5.0 connectivity, voice assistant compatibility, and exceptional battery life, it delivers an unparalleled audio experience that both casual listeners and serious audiophiles will appreciate. Whether at home, in the office, or on the go, the Fresco Speaker is a versatile and sophisticated choice for all music lovers.
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