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A measure of what frequencies can be reproduced and how accurately they are reproduced. A measure, usually in watts, of how much energy is modulated by a component. A comparison of the signal level relative to the noise level. A passive crossover uses no external power and results in insertion loss. The middle of the bass part of the frequency range, from approximately 50 to Hz upper bass would be from to Hz. The total acoustical characteristics of a space, such as ambience; number, timing, and relative level of reflections; ratio of direct to reflected sound; RT time; etc.

In video, frequency is used to define the image resolution. Larger numbers are better. Same as low cut. A component designed to alter the frequency balance of an audio signal. Also used as a term for loudspeaker drivers designed to reproduce both bass and midrange frequencies. A Line Array is perfect for medium to large audiences. A component that converts electrical energy into acoustical energy. Increase in level or amplitude.

A speaker designed to reproduce the full range 20 Hz to 20 kHz of audio frequencies. The number of cycles vibrations per second. A measurement of 20 to 20, Hz, 3dB means those frequencies between 20 and 20, Hz can be reproduced no more than 3 dB above or below a reference frequency level.


A passive speaker is one without internal amplification.

JBL SRXS 18″ W Front-Firing Subwoofer SRXS B&H

This requires an RF demodulator usually referred to as an AC3-RF demodulator before or in the surround processor to decode the signal. A gradual increase in audio, i. Be the first to review this item. The SRXS 18″ W Front-Firing Subwoofer from JBL is a compact subwoofer that delivers powerful bass performance, ideal for low-frequency support alongside full-range speakers, or as part of a subwoofer array.

The transmission of current or voltage from the output of a device back to the input, where it jjbl with the input signal to modify operation of the device.

The minimum purchase order quantity for the product is 1. Higher frequencies depict smaller objects finer details. Speaker Pole and Wheels Sold Separately.

JBL SRX718S 18″ High Power PA Subwoofer

The preamp sr718s in the signal chain before the amplifiers. Kilohertz or one thousand Hz. A small microphone that attaches to clothing, allowing the speaker to have a hands-free presentation.

PCM a way to convert sound or analog srd718s to binary information 0s and 1s by taking samples of the sound and record the resulting number as stx718s information.

The subwoofer has a peak power rating of W to provide a powerful bass performance with very low distortion. The Mbl subwoofer’s compact design is equally at home as a small, high-performance satellite subwoofer system or as a building block for larger subwoofer arrays. Compression scheme used to transfer audio files via the Internet and store in portable players and digital audio servers.

JBL Professional by Harman: A mixer provides for both mic and line input combinations while allowing you to control one or more outputs. VCRs and DBS receivers often include channel 3 or 4 modulators, allowing the output signal to be tuned by the television on those channels. This refers to amicrophone with a flexible neck that is most frequently attached to a podium or lectern.


This is the unit in which audio signals are directed from. Uses some proprietary features, but mostly assures a base quality level for a given room size. Time relationship between signals; it’s all relative. These words all refer to the initial few seconds of audio signifying the beginning of the production. Is compatible with any and all soundtrack formats. A control and switching component that may include equalization functions. The sub has a strong ply birch enclosure that is internally braced for durability and exceptional sonic performance.

Integrated handles provide convenient transportation, and threaded insert points on the bottom allow you to attach an optional wheel kit sold separately for additional mobility. Stands for either Tom Holman’s eXperiment, after the engineer who drafted the original standard, or is named after the company’s founder George Lucas’ first movie, THX It can sometimes be found on DVD-Video.

Also used as a term for loudspeaker drivers designed to reproduce this range. Anything that processes an incoming signal in some way. A type of equalizer jnl sliding controls that creates a pattern representing a graph of the frequency-response changes.

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This system allows attendees to hear the meeting in their own language. Enter new zip code to refresh estimated delivery time. Something that repeats a cycle once each second moves at a rate of 1 Hz.

Television signals are modulated onto RF signals and are then demodulated by your television’s tuner. A filter that passes high frequencies, and attenuates low frequencies. Certification program for home theater equipment. Jb is designed to allow the speaker to raise or lower the microphone to a suitable height.