store audiospares

Signal Processing for Active Control sets out the signal processing and automatic control techniques that are used in the analysis and implementation of active systems for the control of sound and vibration. After reviewing the performance limitations introduced by physical aspects of active control, Stephen Elliott presents the calculation of the optimal performance and the implementation of adaptive real time controllers for a wide variety of active control systems.Active sound and vibration control are technologically important problems with many applications. 'Active control' means controlling disturbance by superimposing a second disturbance on the original source of disturbance. Put simply, initial noise + other specially- generated noise or vibration = silence [or controlled... Less

The Antari WIFI-800 is the same fogger as the popular Z-800MKII but with a built-in WIFI network. This makes it possible to control the fogger with your iPhone in combination with the Fog 800 app, available at the app store. With this app you have on/off and timer control. Besides the WIFI control it also has a button on the grip to control it manually. Connection between your iPhone and the WIFI-800 is easily made with the unique WIFI code that is supplied with the fogger. To see how it works please check our online product video. Specifications: Power: AC240V, 50Hz, Output: 3,000 cu. ft/min, (85m³/min), Tank Capacity: 0,8 L, Fluid type: Fog Fluid, Fluid Consumption Rate: 37 Min./0,8 L(100% Output), DMX: No, WIFI network: built-in, Heater: 800W, Weight: 3,5 kg, Dimensions (LxWxH): 315 x... Less

The need for controlling interference and limiting noise problems in wireless communications systems starts at the most fundamental levels of circuit design. When efficient approaches for noise control are implemented at the circuit level, it helps significantly to ensure the effective noise control for the overall system design. This book is a practical reference for engineers who are particularly interested in practical case studies covering how to avoid undesired interference and noise problems in their designs. It covers a significant number of chapters dedicated to different aspects of digital, analog, and mixed mode analog/digital design which are directly affected by noise and interference issues. Each of the three Wireless Communications Design Handbook volumes addresses theory... Less

B-Stock, Digitech JamMan Delay FX Pedal - looper/phrase sampler and stereo delay, stores over 35 minutes of stereo CD quality loops in 99 internal memories, optional 16GB or higher SDHC card can store more than 16 hours of CD-quality audio in 99 additional memories (198 memories total), 44.1 kHz sampling rate (CD quality), USB port (downloadable JamManager librarian for PC and Mac archives and organizes your loops over USB), record rhythm loops and solo over them on the fly, completely hands-free, aux input, 8 heavy-duty metal footswitches for looping - loop selection and delay control, 3 stop modes (Stop, Finish, and Fade), slow down or speed up any loop without changing pitch, reverse loop playback, 16 seconds of true stereo delay, 3 fully programmable delay presets, 8 unique delay... Less

The need for controlling interference and limiting noise problems in wireless communications systems starts at the most fundamental levels of circuit design. When efficient approaches for noise control are implemented at the circuit level, it helps significantly to ensure the effective noise control for the overall system design. This book is a practical reference for engineers who are particularly interested in practical case studies covering how to avoid undesired interference and noise problems in their designs. It covers a significant number of chapters dedicated to different aspects of digital, analog, and mixed mode analog/digital design which are directly affected by noise and interference issues. Each of the three Wireless Communications Design Handbook volumes addresses theory... Less

Enttec DMX Playback Mk2, DMX Playback Mk2. The ultimate DMX512 show recorder.General Description: With this unit, you can record and store a light show, then let the unit playback the show for as long as you like. The DMXPlayBack MK2 is perfect for unattended light shows or demonstrations that run continuously. The unit can store up to 500 static scenes per show., A show can be programmed to start: when the unit is powered, external trigger .... You could even control the PlayBack from any RS232 capable device: show control system, Hyper Terminal, basic stamp ... (check the communication protocol in the download section for a complete set of commands). Clients have also used the DMXPlayBack MK2 with a more sophisticated control systems such as AMX? systems, where multiple DMXPlayBacks... Less

Full flight utility case for equipment stands, cables, par cans etc9mm vinyl laminated plywoodHinged lidRecessed handles and butterfly latchesRecessed wheelsDimensions: 1206 x 316 x 316mm

B-Stock, Digitech JamMan Looper/Phrase Sampler - stereo FX pedal. Store over 35 minutes of mono, CD-quality loops in 99 internal memories, optional SDHC card can store over 16 hours (with optional 8GB or higher SDHC memory card) of CD-quality audio in 99 additional memories (198 total), 44.1kHz sampling rate (CD quality), USB port, record rhythm loops and solo over them on the fly, aux input, reverse playback, 4x heavy-duty metal footswitches for looping and loop selection, 3x stop modes (stop, finish and fade), slow down or speed up any loop without changing pitch, balanced XLR mic input, metronome with multiple rhythm sounds and time signatures, automatic recording, includes power supply., B-Stock with full warranty, may have slight traces of use Guitars, Basses, Amps / Floor Effects

Power amplifiers and their performance lie at the heart of audio engineering and provide some challenging problems for the engineer. Ben Duncan's experience, as an audio consultant, analog electronics designer and author, give him an unique insight into this difficult but rewarding field. Linking analog electronics, acoustics, heat and music technology; high-end hi-fi and professional PA and recording studio use; theory, modelling and real-world practice; design and repair; the old and the new, the mainstream and the specialised, this comprehensive guide to power amps is a core reference for anyone in the industry, and any interested onlookers. Ben Duncan is well known to many users of audio power amplifiers around the world, both professional and domestic, through his articles, reviews... Less

In-depth coverage of modern digital implementations of frequency synthesis architectures Numerous design examples drawn from actual engineering projects The accompanying CD includes digital frequency synthesis design tools and an electronic version of the bookDigital frequency synthesis is used in modern wireless and communications technologies such as radar, cellular telephony, satellite communications, electronic imaging, and spectroscopy. This is book is a comprehensive overview of digital frequency synthesis theory and applications, with a particular emphasis on the latest approaches using fractional-N phase-locked loop technology. The design tools in the accompany CD allow readers to work through the examples in this book for a realistic simulation of actual design using digital... Less

Power amplifiers and their performance lie at the heart of audio engineering and provide some challenging problems for the engineer. Ben Duncan's experience, as an audio consultant, analog electronics designer and author, give him an unique insight into this difficult but rewarding field. Linking analog electronics, acoustics, heat and music technology; high-end hi-fi and professional PA and recording studio use; theory, modelling and real-world practice; design and repair; the old and the new, the mainstream and the specialised, this comprehensive guide to power amps is a core reference for anyone in the industry, and any interested onlookers. Ben Duncan is well known to many users of audio power amplifiers around the world, both professional and domestic, through his articles, reviews... Less

A professional quality case designed and constructed to safely transport, protect and store valuable disco equipment. The case comprises 3 different sized sections, 3U for a CD control unit, 4U for a mixer and 2U for a CD main unit. Constructed using vinyl laminated 9mm plywood and aluminium location strips to provide rigidity to the case Fitted with heavy duty flip handles, steel ball corners, butterfly catches with facility for padlocks and large rubber feet Rear hinged access panel with circular cut-out for power leads Detachable cover 2U blanking plate across top of front section Supplied with M6 captive nuts, bolts and plastic washers for installing equipment Dimensions 510 x 540 x 400mm Weight 13kg

A vast range of audio and audio-associated ICs are readily available for use by design engineers and technicians. This handbook is a comprehensive guide to the most popular and useful of these devices, including about 370 circuits with diagrams. It deals with ICs such as low frequency linear amplifiers, dual pre-amplifiers, audio power amplifiers, charge coupled device delay lines, bar-graph display drivers, and power supply regulators. It shows how to use these devices in circuits ranging from simple signal conditioners and filters to complex graphic equalisers, stereo amplifier systems, and echo/reverb delay line systems. Not only does this Handbook contain a huge collection of circuits using state-of-the-art and readily available ICs, but also it gives a thorough grounding in... Less

A professional quality case designed and constructed to safely transport, protect and store valuable disco equipment. The case comprises 3 different sized sections, 2U for a CD control unit, 6U for a mixer and 2U for a CD main unit. Constructed using vinyl laminated 9mm plywood and aluminium location strips to provide rigidity to the case Fitted with heavy duty flip handles, steel ball corners, butterfly catches with facility for padlocks and large rubber feet Rear hinged access panel with circular cut-out for power leads Detachable cover 2U blanking plate across top of front section Supplied with M6 captive nuts, bolts and plastic washers for installing equipment Dimensions 570 x 540 x 385mm Weight 13.5kg

A professional quality case designed and constructed to safely transport, protect and store valuable disco equipment. The case comprises 3 different sized sections, 2U for a CD control unit, 4U for a mixer and 2U for a CD main unit. Constructed using vinyl laminated 9mm plywood and aluminium location strips to provide rigidity to the case Fitted with heavy duty flip handles, steel ball corners, butterfly catches with facility for padlocks and large rubber feet Rear hinged access panel with circular cut-out for power leads Detachable cover 2U blanking plate across top of front section Supplied with M6 captive nuts, bolts and plastic washers for installing equipment Dimensions 495 x 540 x 355mm Weight 12kg

A professional quality case designed and constructed to safely transport, protect and store valuable disco equipment. The case comprises 3 different sized sections, 3U for a CD control unit, 6U for a mixer and 2U for a CD main unit. Constructed using vinyl laminated 9mm plywood and aluminium location strips to provide rigidity to the case Fitted with heavy duty flip handles, steel ball corners, butterfly catches with facility for padlocks and large rubber feet Rear hinged access panel with circular cut-out for power leads Detachable cover 2U blanking plate across top of front section Supplied with M6 captive nuts, bolts and plastic washers for installing equipment Dimensions 600 x 540 x 420mm Weight 14.2kg

Arriba Cases AT-300 3,0m Truss Bag, Arriba Cases AT Truss Series protective cases are designed to securely transport and store stage trussing. Arriba Truss Cases keep your truss clean and protect against nicks and scratches. Fits 0,5-meter square or triangular straight truss segments with a width and height of 11 7/16 (290mm), Ridged bottom and ends to secure truss and protect truss from ripping bag, Pouch to conveniently store connection hardware. Case size: 3100x305x305mm Lighting / Lighting Accessories

The audio amplifier is at the heart of audio design. Its performance determines largely the performance of any audio system. John Linsley Hood is widely regarded as the finest audio designer around, and pioneered design in the post-valve era. His mastery of audio technology extends from valves to the latest techniques. This is John Linsley Hood's greatest work yet, describing the milestones that have marked the development of audio amplifiers since the earliest days to the latest systems. Including classic amps with valves at their heart and exciting new designs using the latest components, this book is the complete world guide to audio amp design.John Linsley Hood is responsible for numerous amplifier designs that have led the way to better sound, and has also kept up a commentary on... Less

This book uses an analytical approach, backed up with numerous experimental exercises and worked examples. It is designed to deliver the core content of a three year degree course in a single volume, which makes it an ideal core adoption text, and an essential reference text for a wide range of students A comprehensive analog electronics text for first degrees and conversion coursesDr Wilmshurst has drawn on his experience running an MSc conversion and other courses to produce this single volume text which covers all the analog electronics needed in a wide range of higher education programmes: first degrees in electronic engineering, experimental science courses, MSc electronics and electronics units for HNDs.The chapter on audio amplifiers includes an invaluable example of the... Less

Passive Components for Circuit Design is a unique introduction to this key area of analog electronics designed for technician engineers and anyone involved in circuit design. The coverage encompasses all component types capable of power amplification: resistors, capacitors, transformers, solenoids, motors and transducers. The behaviour of the components is explored along with the different types available and the principles of circuit design. Tolerances, stability, variation with temperature, reliability and manufacturing standards are all covered.Reading this book will improve your skills in component selection and analog circuit design. These are essential skills not only for the analog designer, but for all circuit designers, professional or amateur.

Passive Components for Circuit Design is a unique introduction to this key area of analog electronics designed for technician engineers and anyone involved in circuit design. The coverage encompasses all component types capable of power amplification: resistors, capacitors, transformers, solenoids, motors and transducers. The behaviour of the components is explored along with the different types available and the principles of circuit design. Tolerances, stability, variation with temperature, reliability and manufacturing standards are all covered.Reading this book will improve your skills in component selection and analog circuit design. These are essential skills not only for the analog designer, but for all circuit designers, professional or amateur.

This book uses an analytical approach, backed up with numerous experimental exercises and worked examples. It is designed to deliver the core content of a three year degree course in a single volume, which makes it an ideal core adoption text, and an essential reference text for a wide range of students A comprehensive analog electronics text for first degrees and conversion coursesDr Wilmshurst has drawn on his experience running an MSc conversion and other courses to produce this single volume text which covers all the analog electronics needed in a wide range of higher education programmes: first degrees in electronic engineering, experimental science courses, MSc electronics and electronics units for HNDs.The chapter on audio amplifiers includes an invaluable example of the... Less

The purpose of this book is to describe the theory of Digital Power Electronics and its applications. The authors apply digital control theory to power electronics in a manner thoroughly different from the traditional, analog control scheme. In order to apply digital control theory to power electronics, the authors define a number of new parameters, including the energy factor, pumping energy, stored energy, time constant, and damping time constant. These parameters differ from traditional parameters such as the power factor, power transfer efficiency, ripple factor, and total harmonic distortion. These new parameters result in the definition of new mathematical modeling: A zero-order-hold (ZOH) is used to simulate all AC/DC rectifiers. A first-order-hold (FOH) is used to simulate all... Less

ProStage XDS-4, looper system for 4 stompboxes, simple programming of the loops using the 4 switches and the store button, Hard Bypass (send your signal only to the stompboxes you’re using), gold plated relays, ClickFree switching technology (crackle-free switching), 6 completely isolated power supplys (4-9V DC adjustable; 9V,12V,18V DC; 9V,12V AC), StageWire technology (connection to the foot controller via the microphone cable), all features of the XTMpro, weight: ca. 4,4 Kg, installaion depth: 38,5 cm, 19, 3 U, inner dimensions (h x w x d): 82 x 428 x 375 mm, 220/240V, incl. cable set for the stomp boxes, incl. 1m Velcro Guitars, Basses, Amps / Misc. Acessories

Enttec DMXPlayBack Remote Mk2, DMXPlayBack Remote Mk2. General Description: The DMXPlayBackRemote is an add-on for the DMXPlayBack. It acts as a remote control to start on of the 12 shows stored in the DMXPlayBack. The remote has 6 switches and 1 shift key, 6 opto isolated screw terminal switch inputs on the rear of the rack and can be controled using any infra-red remote. The remote is connected to the DMXPlayBack using a single DB9 cable, no power supply is needed, this cable can be up to 5 meters long. Applications: Shop fronts, program the required numebr of shows and let the shop owner run what he wants. Bars, let the bar man change the mood (light show) when he wants without needing to fiddle with a console., The DMXPlayBackRemote is a fool-proof interface to the DMXPlayBack... Less

ProStage XDS 4-4, Loop & Switch system with 4 loops and 4 relay outputs, for stompboxes, and 4 switching outputs, 4 relays outputs to switch amp-functions (channel, boost, ...), simple programming of the loops using the 8 switches and the store button, Hard Bypass (send your signal only to the stompboxes you’re using), gold plated relays, ClickFree switching technology (crackle-free switching), 6 completely isolated power supplys (4-9V DC adjustable; 9V,12V,18V DC; 9V,12V AC), StageWire technology (connection to the foot controller via the microphone cable), all features of the XTMpro, weight: ca. 4,4 Kg, installaion depth: 38,5 cm, 19, 3 U, inner dimensions (h x w x d): 82 x 428 x 375 mm, 220/240V, incl. cable set for the stomp boxes, incl. 1m Velcro Guitars, Basses, Amps / Misc... Less

Arriba Cases AT-200 2,0m Truss Bag, AT-200 2,0 Meter Truss Bag. Arriba Cases AT Truss Series protective cases are designed to securely transport and store stage trussing. Arriba Truss Cases keep your truss clean and protect against nicks and scratches. Fits 0,5-meter square or triangular straight truss segments with a width and height of 11 7/16 (290mm), Ridged bottom and ends to secure truss and protect truss from ripping bag, Pouch to conveniently store connection hardware. Case size: 2100x305x305mm Lighting / Lighting Accessories

Arriba Cases AT-250 2,5m Truss Bag, Arriba Cases AT Truss Series protective cases are designed to securely transport and store stage trussing. Arriba Truss Cases keep your truss clean and protect against nicks and scratches. Fits 0,5-meter square or triangular straight truss segments with a width and height of 11 7/16 (290mm), Ridged bottom and ends to secure truss and protect truss from ripping bag, Pouch to conveniently store connection hardware. Case size: 2600x305x305mm Lighting / Lighting Accessories

This book gives the fundamental principles and device design techniques for surface acoustic wave filters. It covers the devices in widespread use today: bandpass and pulse compression filters, correlators and non-linear convolvers and resonators. The newest technologies for low bandpass filters are fully covered such as unidirectional transducers, resonators in impedance element filters, resonators in double-mode surface acoustic wave filters and transverse- coupled resonators using waveguides. The book covers the theory of acoustic wave physics, the piezoelectric effect, electrostatics at a surface, effective permittivity, piezoelectric SAW excitation and reception, and the SAW element factor. These are the main requirements for developing quasi-static theory, which gives a basis for... Less