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Also used as a term for loudspeaker drivers designed to reproduce this range.

A speaker designed to reproduce very low bass frequencies, usually those below about 80 Hz. A speaker designed to reproduce the full range 20 Hz to 20 kHz of audio frequencies.

NATS can be used to help characterize the setting. Feedback is positive when it’s in phase with the input and negative when it’s out of phase. This refers to amicrophone with a flexible neck that is most frequently attached to a podium or lectern. 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.

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.

Used, Second hand JBL SRX S 18″ Subwoofer

An unwanted portion of a signal such as hiss, hum, whine, static, or buzzing. A type of equalizer with sliding controls that creates a pattern representing a graph of the frequency-response changes. Speaker Pole and Wheels Sold Separately. Raising sliders boosts the affected frequencies; lowering sliders cuts attenuates the affected frequencies. Larger numbers mean higher resistance to current flow. A gradual increase in audio, i.

See any errors on this page? Time relationship between signals; it’s all relative. Certification program for home theater equipment. A passive speaker is one without internal amplification. 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.


The sub has a strong ply birch enclosure that is internally braced for durability and exceptional sonic performance. A component that converts electrical energy into acoustical energy.

A 20mm threaded pole socket on the top panel allows you to securely mount a satellite speaker on top of the subwoofer. A reasonably accurate method of describing an amplifier’s power output. Higher frequencies depict smaller objects finer details. Equalizers may be graphic, parametric, or a combination of both. This is the unit in which audio signals are directed from. 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.

A Line Array is perfect for medium to large audiences.

JBL SRX718S 18″ High Power PA Subwoofer

Jlb 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 is designed to allow the speaker to raise or lower the microphone to a suitable height.

Last items in stock! Large port area for reduced distortion. No Longer Available Update Location close. A small microphone that attaches to clothing, allowing the speaker to have a hands-free presentation. Root Mean Square or the square root of the arithmetic mean average of the square’s ibl of values. The minimum purchase order quantity for the product is 1.

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This system allows attendees to hear the meeting in their own language. Compact design is ideal for low-frequency support alongside full-range speakers, or as part of a subwoofer array The strong ply birch enclosure is internally braced for durability and exceptional sonic performance The 18″ H Differential Drive woofer provides an extended low frequency range as low as 31Hz A large port helps to extend low frequency response while reducing compression and turbulence The subwoofer has a peak power rating of W to provide a powerful bass performance with very low distortion Integrated handles provide convenient transportation, and threaded insert points on jl bottom allow you to attach an optional wheel kit sold separately for additional mobility A 20mm threaded pole socket on the top panel allows you to securely mount a satellite speaker on top of the subwoofer.


Is compatible with any and all soundtrack formats.

The middle of the audio frequency range. Be the first to review this item.

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. Low-frequency video images depict large objects or images. Compression scheme used to transfer audio files via the Internet and store in portable players and digital audio servers. A control and switching component that may include equalization functions.

It can sometimes be found on DVD-Video. Same as low cut.

JBL Professional by Harman: Something that repeats a cycle once each second moves at a rate of 1 Hz. In audio, audible frequencies commonly range from 20 to 20, cycles per second Hz. These words all refer to the initial few seconds of audio signifying the beginning of the production. Anything that processes an incoming signal srx7118s some way. Surround processors, for example, can decode a Dolby Digital signal to send to an amp so you can hear srx718.

Kilohertz or one thousand Hz.