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The SRXS 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.

JBL Professional by Harman: A component subwooofer to alter the frequency balance of an audio signal. Equalizers may be graphic, parametric, or a combination of both. A gradual increase in audio, i.

JBL SRX718S 18″ High Power PA Subwoofer

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

Feedback is positive when it’s in phase with the input and negative when it’s out of phase. The number of cycles vibrations per second. In audio, audible frequencies commonly range from 20 to 20, cycles per second Hz. In video, frequency is used to define the image resolution. Low-frequency video images depict large objects or images. Higher frequencies depict smaller objects finer details.

A measure of what frequencies can be reproduced and how accurately they are reproduced. 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 speaker designed to reproduce the full range 20 Hz to 20 kHz of audio frequencies. Increase in level or amplitude.

This refers to amicrophone with a flexible neck that is most frequently attached to a podium or lectern. It is designed to allow the speaker to raise or lower the microphone to a suitable height. A type of equalizer with sliding controls that creates a pattern representing a graph of the frequency-response changes. Raising sliders boosts the affected frequencies; lowering sliders cuts attenuates the affected frequencies. A filter that passes high frequencies, and attenuates low frequencies.

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Same as low cut. Hertz or cycles per second. Something that repeats a cycle once each second moves at a rate of 1 Hz. These words all refer to the initial few seconds of audio signifying the beginning of the production. A measure of the impediment to the flow of alternating current, measured in ohms at a given frequency. Larger numbers mean higher resistance to current flow. Kilohertz or one thousand Hz. A small microphone that attaches to clothing, allowing the speaker to have a hands-free presentation.

A Line Array is perfect for medium to large audiences. The middle of the bass part of the frequency range, from approximately 50 to Hz upper bass would be from to Hz. Also used as a term for loudspeaker drivers designed to reproduce both bass and midrange frequencies. The middle of the audio frequency range. Also used as a term for loudspeaker drivers designed to reproduce this range. This is the unit in which audio signals are directed from.

A mixer provides for both mic and line input combinations while allowing you to control one or more outputs.

Compression scheme used to transfer audio files via the Internet and store in portable players and digital audio servers. The nonverbal audio that occurs in a non-studio setting. NATS can be used to help characterize the setting. An unwanted portion of a signal such as hiss, hum, whine, static, or buzzing.

A passive crossover uses no external power and results in insertion loss.

A passive speaker is one without internal amplification. Time relationship between signals; it’s all relative. A measure, usually in watts, of how much energy is modulated by a component. A control and switching component that may include equalization functions. The preamp comes in the signal chain before the amplifiers. Anything that processes an incoming signal in some way. Surround processors, for example, can decode a Dolby Digital signal to send to an amp so you can hear it. PCM a way to convert sound or analog information to binary information 0s and 1s by taking samples of the sound and record the resulting number as binary information.

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It can sometimes be found on DVD-Video.

JBL SRX718S Used, Second hand

Television signals are modulated onto RF signals and are then demodulated by your television’s tuner. VCRs and DBS receivers often include channel 3 or 4 modulators, allowing the output signal to be tuned by the television on those channels. Also, laser discs used an RF signal for modulating Dolby Digital 5. This requires an RF demodulator usually referred to as an AC3-RF subwoofrr before or in the surround processor to decode the signal. Root Mean Square or the square root of the arithmetic mean average of the square’s set of values.

A reasonably accurate method of describing an amplifier’s power output. A comparison of the signal level relative to the noise level.

Used, Second hand JBL SRX S 18″ Subwoofer

Larger numbers are better. This system allows attendees to hear the meeting in their own language. The total acoustical characteristics of a space, such as ambience; number, timing, and relative level of reflections; ratio of direct to reflected sound; Sx718s time; etc.

A component that converts electrical energy into acoustical energy. A speaker designed to reproduce very low bass frequencies, usually those below about 80 Hz. Certification program for home theater equipment. Uses some proprietary features, but mostly assures a base quality level for a given room size. Is compatible with any and all soundtrack subwoofeer. Stands for either Tom Holman’s eXperiment, after the engineer who drafted the original standard, or is named subwoover the company’s founder George Lucas’ first movie, THX Nobody agrees on which.

Last items in stock! Large port area for reduced distortion.