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technical information
technical information

... Tripath amplifiers generally have a higher switching frequency than PWM implementations allowing the use of higher cutoff frequency filters, reducing the load dependent peaking/drooping in the 20kHz audio band. This is especially important for applications where the user may attach any speaker to th ...
Untitled
Untitled

... Xtant optional accessory modules are easily and quickly installed by your Authorized Xtant Dealer. The upgrade modules snap into place on the amplifiers PC board when the top of the unit is removed. These accessories enhance your entire system, expanding and customizing performance for your unique a ...
Quick Setup Guide
Quick Setup Guide

... with a Bluetooth device. If your Bluetooth device has a display, the SoundBase appears as “ZVOX”. The SoundBase display stops flashing when it pairs with the Bluetooth device. ...
SNG
SNG

Measuring Output - Transformer Performance
Measuring Output - Transformer Performance

... This distortion phenomenon was researched by Partridge.4 Figure 10 shows an example of his measurement results with cores made of 3.5% silicon steel.5 On the vertical axis the current distortion ID is shown in percentages, while the horizontal axis gives the amplitude of the magnetic flux density Bm ...
1 Introduction and Bioamplifier Requirements Full
1 Introduction and Bioamplifier Requirements Full

2 5 1 The power converter derives the heater, line blanking and EHT
2 5 1 The power converter derives the heater, line blanking and EHT

MAX9715 2.8W, Low-EMI, Stereo, Filterless Class D Audio Amplifier General Description
MAX9715 2.8W, Low-EMI, Stereo, Filterless Class D Audio Amplifier General Description

Final Report
Final Report

... be sent, through a serial connection, to a DAC. The Bluetooth chip will need to communicate with the device it is pairing with in order to carry out the action of pairing before audio may be transmitted from the device to the system. The DAC will be required to process the incoming serial stream fro ...
as a PDF
as a PDF

1⁄4-inch Preamps. Types 26AA, -AB, -AC, -AL
1⁄4-inch Preamps. Types 26AA, -AB, -AC, -AL

Breaking the Myth of the Audiopile - Encompass
Breaking the Myth of the Audiopile - Encompass

... discontinuous expression. Digital technology breaks up the sound in a way that can often be picked up by the ear as broken or choppy. Analog amps on the other hand produce a warm and full sound quality that is due in part to keeping almost all of the original data present at the beginning of the amp ...
Sound Score Playback Options: Part Two [doc format]
Sound Score Playback Options: Part Two [doc format]

EET-223(1)-ANALOG ELECTRONICS
EET-223(1)-ANALOG ELECTRONICS

... Output devices conduct for 180 degrees (1/2 of input cycle) for audio, two output devices in "push-pull" must be used (see Class-AB) • Class-AB: Halfway (or partway) between the above two examples (181 to 200 degrees typical) - also requires push-pull operation for audio. The conduction for each out ...
SA-S70, SA-S90 - P84502
SA-S70, SA-S90 - P84502

Model ZAC-40 - Fire Alarm Resources
Model ZAC-40 - Fire Alarm Resources

... Setting the low frequency cutoff Low frequency cutoff can be set for 240Hz or 85Hz. This setting acts on both: local audio input and on all digital channels. Setting for 240 Hz protects small speakers from being overload with bass impulses. Speech intelligibility may be improved. This setting is not ...
AN-583 APPLICATION NOTE
AN-583 APPLICATION NOTE

Systems Integration Amplifier®
Systems Integration Amplifier®

... Constant - The auto turn-on circuitry is off. The front panel master power switch operates the amplifier. In is “On”, out is “Off”. Audio Sense - The master switch on the front panel must be in the “On” position. The amplifier is off when there is no audio signal present at either the left or the ri ...
Grounding and Shielding Considerations
Grounding and Shielding Considerations

... degree. Instrument engineers typically design systems that make the measured signal much larger than the noise that accompanies it, whatever that source of noise may be. They specify this parameter as signal-to-noise ratio SNR and typically measure it in dB. In terms of voltage, dB = 20 log (V2/V1), ...
TEMPORARY THRESHOLD SHIFT (TTS): CAUSES, EFFECTS AND
TEMPORARY THRESHOLD SHIFT (TTS): CAUSES, EFFECTS AND

... ...
HRTF Measurements and Filter Design for a Headphone
HRTF Measurements and Filter Design for a Headphone

... The term binaural literally means relating to or used with both ears. In 1948, Jeffress proposed the first binaural concept, a technique to detect inter-aural time differences (ITD), one of the most important cues for localization of sound sources. Since then binaural models have attracted the atten ...
Chapter 1 - Introduction to Electronics
Chapter 1 - Introduction to Electronics

... Figure 1.19 (a) Small-signal circuit model for a bipolar junction transistor (BJT). (b) The BJT connected as an amplifier with the emitter as a common terminal between input and output (called a common-emitter amplifier). (c) An alternative small-signal circuit model for the BJT. ...
Systems Integration Amplifier®
Systems Integration Amplifier®

... stereo amplifier you hear only half the music. The solution would be to connect that room’s speakers to a monophonic amplifier. However, if you make one room mono with conventional systems, all of the other rooms in the system are mono as well. For the first time, the SI-1230’s BusMatrix enables you ...
Chapter 7
Chapter 7

Anti-Heckler - The Random Information Bureau
Anti-Heckler - The Random Information Bureau

... The “Anti-Heckler” is a new proposal for a microphone pre-amplifier, giving a line level output intended for use with power amplifiers like the “Discotomax”. It also incorporates a number of other features designed to assist the user in setting up a public address system. ...
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Sound reinforcement system



A sound reinforcement system is the combination of microphones, signal processors, amplifiers, and loudspeakers that makes live or pre-recorded sounds louder and may also distribute those sounds to a larger or more distant audience. In some situations, a sound reinforcement system is also used to enhance the sound of the sources on the stage, as opposed to simply amplifying the sources unaltered.A sound reinforcement system may be very complex, including hundreds of microphones, complex audio mixing and signal processing systems, tens of thousands of watts of amplifier power, and multiple loudspeaker arrays, all overseen by a team of audio engineers and technicians. On the other hand, a sound reinforcement system can be as simple as a small public address (PA) system, consisting of a single microphone connected to an amplified loudspeaker for a singer-guitarist playing in a coffeehouse. In both cases, these systems reinforce sound to make it louder or distribute it to a wider audience.Some audio engineers and others in the professional audio industry disagree over whether these audio systems should be called sound reinforcement (SR) systems or PA systems. Distinguishing between the two terms by technology and capability is common, while others distinguish by intended use (e.g., SR systems are for live event support and PA systems are for reproduction of speech and recorded music in buildings and institutions). In some regions or markets, the distinction between the two terms is important, though the terms are considered interchangeable in many professional circles.
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