Most commercial power amplifiers are optimised for 2-channeloperation. People perceive spaciousness by the delay between the arrival of direct and reflected sound larger spaces cause longer delays. Main to sub-wooferdelays Reference settings The following table shows system delays to align various combinations of W8L Series main and sub-woofersystem. A digital sound recording format, originally developed for theatrical film soundtracks, starting with Jurassic Park. Power reserve Most power amplifier specifications are based on bench measurements made using stable, high current mains supplies and well defined loads. Phase: Time relationship between signals; it's all relative. Subject to change without notice.
A Line Array is perfect for medium to large audiences. A reasonably accurate method of describing an amplifier's power output. Crossover Frequency: The frequency at which an audio signal is divided. Balanced Input: A connection with three conductors: two identical signal conductors that are 180 degrees out of phase with each other, and one ground. Diffusion: In audio, the scattering of sound waves, reducing the sense of localization. Diaphragm: The part of a dynamic loudspeaker attached to the voice coil that produces sound.
A solid floor can act as an acoustic mirror, doubling the effective array size. Useful for long distances in low-roofedvenues with raked seating up to the height of the stack. Analytics cookies help us improve our website and share anonymised data with third party platforms. Corroded or damaged pins and sockets can cause severe distortion or loss of signal. Adds improved decoding for two-channel, non-encoded soundtracks and music. Myriad applications are served to the highest standards from the awesome power demanded by top touring acts to the enthralling theatre of classical ballet or the intimacy of a small theme bar. Lavaliere: A small microphone that attaches to clothing, allowing the speaker to have a hands-free presentation.
Vertical Boundary effects As mentioned before, a solid floor will act as a reflector. Fade: A gradual increase in audio, i. Decibel dB : A logarithmic measurement unit that describes a sound's relative loudness, though it can also be used to describe the relative difference between two power levels. Frequencies below 80 Hz are sent to the subwoofer; signals above 80 Hz are sent to the main speakers. A passive crossover uses no external power and results in insertion loss. Something that repeats a cycle once each second moves at a rate of 1 Hz. Subject to change without notice.
To allow for this sag, manufacturers set their rails high so that they still meet their quoted output into specified loads. Martin Audio products will withstand this potential doubling of instantaneous power - with suitably set controller limiters - but further, long-termincreases caused by oversized amplifiers should be avoided. A passive crossover uses no external power supply and may be used either at line level or, more commonly, at speaker level to divide the signal after amplification and send the low frequencies to the woofer and the high frequencies to the tweeter. The sixth channel is matrixed from the left and right surround channels. Amplifier load tolerance An efficient subwoofer system in live concert conditions can act as a surprisingly dynamic and complex load. Real-world off-axislobe amplitudes and shapes would vary considerably depending on boundary loading, echoes, reverberation and other audio sources affecting the same space. Useful for long, narrow venues Use narrow arrays for short, wide shots Horizontal Boundary effects A solid wall near an array will act as a reflector.
Subject to change without notice. Impedance: A measure of the impediment to the flow of alternating current, measured in ohms at a given frequency. Simultaneous Interpretation: This system allows attendees to hear the meeting in their own language. Today, Martin Audio enjoys an international reputation for supplying superb performance ready systems across the spectrum of sound reinforcement applications. It usually has the shape of a cone or dome. Subject to change without notice. Most include the processing to make the files, and all have the ability to play them back.
In video, it's listed as the contrast ratio. If systems have to be physically misaligned, extra delay may be employed to compensate for the differing arrival times. This type of connection is very resistant to line noise. Q: Where is your main market 9 A: Our main customers are from North America and Europe and other countries,etc. A 1dB difference over a broad frequency range is noticeable to most people, while a 0.
Bandwidth: In audio, the range of frequencies a device operates within. Higher frequencies depict smaller objects finer details. Also used as a term for loudspeaker drivers designed to reproduce this range. Feedback: 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. A fully qualified technican should check mains safety and phase voltage before the system is patched. Equalizer: A component designed to alter the frequency balance of an audio signal.
Dynamic Range: The difference between the lowest and the highest levels; in audio, it's often expressed in decibels. Subject to change without notice. Asingle, ultralong-excursion, 18-inch 460mm driver with a 4-inch 100mm voice coil is front-loaded via a hyperbolic horn. Subject to change without notice. Midbass: The middle of the bass part of the frequency range, from approximately 50 to 100 Hz upper bass would be from 100 to 200 Hz.
Channel: In components and systems, a channel is a separate signal path. Our aim is for every member of the audience to enjoy an exceptional sonic experience. They are a good starting point for further time alignment. This will cause a vertical stack to perform as if it were double the length, giving a useful low frequency boost and a narrower vertical polar response. Use short stacks for short, wide vertical shots.