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The design of active crossovers

Active crossovers are used by almost every sound reinforcement system and every recording studio monitoring set-up; but the use of active crossovers is rapidly expanding. This new edition, presents all the updates to loudspeaker technology and crossover design. The edition expands on loudspeaker con...

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Bibliographic Details
Main Author: Self, Douglas
Format: eBook
Language:English
Published: New York Routledge 2018
Edition:Second edition
Subjects:
Electric Filters, Active / Design And Construction / Fast
Electric Filters, Active / Design And Construction
Technology & Engineering / Mechanical / Bisacsh
Bridge Circuits / Design And Construction
Online Access:
Collection: O'Reilly - Collection details see MPG.ReNa
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245 0 0 |a The design of active crossovers  |c Douglas Self 
250 |a Second edition 
260 |a New York  |b Routledge  |c 2018 
300 |a 672 pages  |b illustrations 
505 0 |a Cover -- Title -- Copyright -- Dedication -- Contents -- Acknowledgments -- Preface -- Chapter 1: Crossover Basics -- What a Crossover Does -- Why a Crossover Is Necessary -- Beaming and Lobing -- Passive Crossovers -- Active Crossover Applications -- Bi-Amping and Bi-Wiring -- Loudspeaker Cables -- The Advantages and Disadvantages of Active Crossovers -- The Advantages of Active Crossovers -- Some Illusory Advantages of Active Crossovers -- The Disadvantages of Active Crossovers -- The Next Step in Hi-Fi -- Active Crossover Systems -- Matching Crossovers and Loudspeakers -- A Modest Proposal: Popularising Active Crossovers -- Multi-Way Connectors -- Subjectivism -- Chapter 2: How Loudspeakers Work -- Sealed-Box Loudspeakers -- Reflex (Ported) Loudspeakers -- Auxiliary Bass Radiator (ABR) Loudspeakers -- Transmission Line Loudspeakers -- Horn Loudspeakers -- Electrostatic Loudspeakers -- Ribbon Loudspeakers -- Electromagnetic Planar Loudspeakers -- Air-Motion Transformers -- Plasma Arc Loudspeakers -- The Rotary Woofer -- MTM Tweeter-Mid Configurations (d'Appolito) -- Vertical Line Arrays -- Line Array Amplitude Tapering -- Line Array Frequency Tapering -- CBT Line Arrays -- Diffraction -- Sound Absorption in Air -- Modulation Distortion -- Drive Unit Distortion -- Doppler Distortion -- Further Reading on Loudspeaker Design -- Chapter 3: Crossover Requirements -- General Crossover Requirements -- 1 Adequate Flatness of Summed Amplitude/Frequency Response On-Axis -- 2 Sufficiently Steep Roll-Off Slopes Between the Filter Outputs -- 3 Acceptable Polar Response -- 4 Acceptable Phase Response -- 5 Acceptable Group Delay Behaviour -- Further Requirements for Active Crossovers -- 1 Negligible Extra Noise -- 2 Negligible Impairment of System Headroom -- 3 Negligible Extra Distortion -- 4 Negligible Impairment of Frequency Response 
505 0 |a Includes bibliographical references and index 
505 0 |a Sallen &amp -- Key 6th-Order Highpass: Three Stages -- Sallen &amp -- Key 6th-Order Highpass: Single Stage -- Sallen &amp -- Key Highpass: Input Impedance -- Bandwidth Definition Filters -- Bandwidth Definition: Subsonic Filters -- Bandwidth Definition: Combined Ultrasonic and Subsonic Filters -- Variable-Frequency Highpass Filters: Sallen &amp -- Key -- Chapter 10: Other Lowpass and Highpass Filters -- Designing Filters -- Multiple-Feedback Filters -- Multiple-Feedback 2nd-Order Lowpass Filters -- Multiple-Feedback 2nd-Order Highpass Filters -- Multiple-Feedback 3rd-Order Filters -- Multiple-Feedback 3rd-Order Lowpass Filters -- Multiple-Feedback 3rd-Order Highpass Filters -- Biquad Filters -- Akerberg-Mossberg Lowpass Filter -- Akerberg-Mossberg Highpass Filters -- Tow-Thomas Biquad Lowpass and Bandpass Filter -- Tow-Thomas Biquad Notch and Allpass Responses -- Tow-Thomas Biquad Highpass Filter -- State-Variable Filters -- Variable-Frequency Filters: State-Variable 2nd Order -- Variable-Frequency Filters: State-Variable 4th-Order -- Variable-Frequency Filters: Other Orders of State-Variable -- Other Filters -- Chapter 11: Lowpass and Highpass Filter Performance -- Aspects of Filter Performance: Noise and Distortion -- Distortion in Active Filters -- Distortion in Sallen &amp -- Key Filters: The Distortion Aggravation Factor -- Distortion in Sallen &amp -- Key Filters: Looking for DAF -- Distortion in Sallen &amp -- Key Filters: 2nd-Order Lowpass -- Distortion in Sallen &amp -- Key Filters: 2nd-Order Highpass -- Mixed Capacitors in Low-Distortion 2nd-Order Sallen &amp -- Key Filters -- Distortion in Sallen &amp -- Key Filters: 3rd-Order Lowpass Single Stage -- Distortion in Sallen &amp -- Key Filters: 3rd-Order Highpass Single Stage -- Distortion in Sallen &amp -- Key Filters: 4th-Order Lowpass Single Stage -- Distortion in Sallen &amp 
505 0 |a 5 Negligible Impairment of Reliability -- Linear Phase -- Minimum Phase -- Absolute Phase -- Phase Perception -- Target Functions -- Chapter 4: Crossover Types -- All-Pole and Non-All-Pole Crossovers -- Symmetric and Asymmetric Crossovers -- Allpass and Constant-Power Crossovers -- Constant-Voltage Crossovers -- First-Order Crossovers -- First-Order Solen Split Crossover -- First-Order Crossovers: 3-Way -- Second-Order Crossovers -- Second-Order Butterworth Crossover -- Second-Order Linkwitz-Riley Crossover -- Second-Order Bessel Crossover -- Second-Order 1.0 dB-Chebyshev Crossover -- Third-Order Crossovers -- Third-Order Butterworth Crossover -- Third-Order Linkwitz-Riley Crossover -- Third-Order Bessel Crossover -- Third-Order 1.0 dB-Chebyshev Crossover -- Fourth-Order Crossovers -- Fourth-Order Butterworth Crossover -- Fourth-Order Linkwitz-Riley Crossover -- Fourth-Order Bessel Crossover -- Fourth-Order 1.0 dB-Chebyshev Crossover -- Fourth-Order Linear-Phase Crossover -- Fourth-Order Gaussian Crossover -- Fourth-Order Legendre Crossover -- Higher-Order Crossovers -- Determining Frequency Offsets -- Filler-Driver Crossovers -- The Duelund Crossover -- Crossover Topology -- Crossover Conclusions -- Chapter 5: Notch Crossovers -- Elliptical Filter Crossovers -- Neville Thiele MethodTM (NTM) Crossovers -- Chapter 6: Subtractive Crossovers -- Subtractive Crossovers -- First-Order Subtractive Crossovers -- Second-Order Butterworth Subtractive Crossovers -- Third-Order Butterworth Subtractive Crossovers -- Fourth-Order Butterworth Subtractive Crossovers -- Subtractive Crossovers With Time Delays -- Performing the Subtraction -- Chapter 7: Lowpass and Highpass Filter Characteristics -- Active Filters -- Lowpass Filters -- Highpass Filters -- Bandpass Filters -- Notch Filters -- Allpass Filters -- All-Stop Filters -- Brickwall Filters 
505 0 |a Key 4th-Order Lowpass: Single-Stage Butterworth -- Sallen &amp -- Key 4th-Order Lowpass: Single-Stage Linkwitz-Riley -- Sallen &amp -- Key 4th-Order Lowpass: Single Stage With Non-Equal Resistors -- Sallen &amp -- Key 4th-Order Lowpass: Single Stage With Other Filter Characteristics -- Sallen &amp -- Key 5th-Order Lowpass: Three Stages -- Sallen &amp -- Key 5th-Order Lowpass: Two Stages -- Sallen &amp -- Key 5th-Order Lowpass: Single Stage -- Sallen &amp -- Key 6th-Order Lowpass: Three Stages -- Sallen &amp -- Key 6th-Order Lowpass: Single Stage -- Sallen &amp -- Key Lowpass: Input Impedance -- Linkwitz-Riley Lowpass With Sallen &amp -- Key Filters: Loading Effects -- Lowpass Filters With Attenuation -- Bandwidth Definition Filters -- Bandwidth Definition: Butterworth Versus Bessel -- Variable-Frequency Lowpass Filters: Sallen &amp -- Key -- Chapter 9: Designing Highpass Filters -- First-Order Highpass Filters -- Sallen &amp -- Key 2nd-Order Filters -- Sallen &amp -- Key 2nd-Order Highpass Filters -- Sallen &amp -- Key Highpass Filter Components -- Sallen &amp -- Key 2nd-Order Highpass: Unity Gain -- Sallen &amp -- Key 2nd-Order Highpass: Equal Resistors -- Sallen &amp -- Key 2nd-Order Butterworth Highpass: Defined Gains -- Sallen &amp -- Key 2nd-Order Highpass: Non-Equal Capacitors -- Sallen &amp -- Key 3rd-Order Highpass: Two Stages -- Sallen &amp -- Key 3rd-Order Highpass in a Single Stage -- Sallen &amp -- Key 4th-Order Highpass: Two Stages -- Sallen &amp -- Key 4th-Order Highpass: Butterworth in a Single Stage -- Sallen &amp -- Key 4th-Order Highpass: Linkwitz-Riley in a Single Stage -- Sallen &amp -- Key 4th-Order Highpass: Single-Stage With Other Filter Characteristics -- Sallen &amp -- Key 5th-Order Highpass: Three Stages -- Sallen &amp -- Key 5th-Order Butterworth Filter: Two Stages -- Sallen &amp -- Key 5th-Order Highpass: Single Stage 
505 0 |a The Order of a Filter -- Filter Cutoff Frequencies and Characteristic Frequencies -- First-Order Filters -- Second-Order and Higher-Order Filters -- Filter Characteristics -- Amplitude Peaking and Q -- Butterworth Filters -- Linkwitz-Riley Filters -- Bessel Filters -- Chebyshev Filters -- 1 dB-Chebyshev Lowpass Filter -- 3 dB-Chebyshev Lowpass Filter -- Higher-Order Filters -- Butterworth Filters up to 8th-Order -- Linkwitz-Riley Filters up to 8th-Order -- Bessel Filters up to 8th-Order -- Chebyshev Filters up to 8th-Order -- More Complex Filters-Adding Zeros -- Inverse Chebyshev Filters (Chebyshev Type II) -- Elliptical Filters (Cauer Filters) -- Some Lesser-Known Filter Characteristics -- Transitional Filters -- Linear-Phase Filters -- Gaussian Filters -- Legendre-Papoulis Filters -- Laguerre Filters -- Synchronous Filters -- Other Filter Characteristics -- Chapter 8: Designing Lowpass Filters: Sallen &amp -- Key -- Designing Real Filters -- Component Sensitivity -- First-Order Lowpass Filters -- Second-Order Filters -- Sallen &amp -- Key 2nd-Order Lowpass Filters -- Sallen &amp -- Key Lowpass Filter Components -- Sallen &amp -- Key 2nd-Order Lowpass: Unity Gain -- Sallen &amp -- Key 2nd-Order Lowpass Unity Gain: Component Sensitivity -- Filter Frequency Scaling -- Sallen &amp -- Key 2nd-Order Lowpass: Equal Capacitor -- Sallen &amp -- Key 2nd-Order Lowpass Equal-C: Component Sensitivity -- Sallen &amp -- Key 2nd-Order Butterworth Lowpass: Defined Gains -- Sallen &amp -- Key 2nd-Order Lowpass: Non-Equal Resistors -- Sallen &amp -- Key 2nd-Order Lowpass: Optimisation -- Sallen &amp -- Key 3rd-Order Lowpass: Two Stages -- Sallen &amp -- Key 3rd-Order Lowpass: Single Stage -- Sallen &amp -- Key 3rd-Order Lowpass in a Single Stage: Non-Equal Resistors -- Sallen &amp -- Key 4th-Order Lowpass: Two Stages -- Sallen &amp 
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520 |a Active crossovers are used by almost every sound reinforcement system and every recording studio monitoring set-up; but the use of active crossovers is rapidly expanding. This new edition, presents all the updates to loudspeaker technology and crossover design. The edition expands on loudspeaker configurations and design issues, sound reinforcement issues, more on lowpass and highpass filters, and may other filters. This new edition is a must read for anyone wanting comprehensive practical knowledge 

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