Supplementary Material


Supplemental Material (previously available on CD): Loudspeaker Design Cookbook
 
Issue Article Author File(s)
2024      
03/24 The AVM-100True-RMS Voltmeter George Ntanavaras Ntanavaras-AX-March2024
02/24 Duetta: A Modest-Cost, Transmission-Line Speaker Paul Kittinger Kittinger-AX-February2024
2023      
12/23 JFETs in the Variable-Resistance Mode and Their Application in Audio Circuits Dimitri Danyuk Danyuk-AX-December2023
10/23 Build the Popping Ps Filter Ethan Winer Winer-AX-October2023
10/23 Building a Minimally Baffled Dipole Speaker Charlie Laub Laub-AX-October2023
09/23 Bass Reflex Performance Envelope Gary Gesellchen Gesellchen-AX-September2023
05/23 Myths in Tube Circuit Designs Peter Dieleman Dieleman-AX-May2023
05/23 Vintage Op-Amp Noise Simulation Burkhard Vogel Vogel-AX-April2023
04/23 Vintage Op-Amp Noise Simulation Burkhard Vogel Vogel-AX-April2023
02/23 The Pre-5: A High-Performance Tube Hybrid Preamp James Skov Skov-AX-February2023
2022      
12/22 The LNA-100: A Low Noise Amplifier with Filters and a RMS Voltmeter George Ntanavaras Ntanavaras-AX-December22
10/22 Making a DC Power Supply with Audible Benefits (Part 1) Frans de Wit deWit-AX-October2022
08/22 Build a Guitar-Controlled Synthesizer: VCA & VCF Ethan Winer Winer-AX-August2022
07/22 Build a Guitar-Controlled Synthesizer: Input Section & Pick Detector Ethan Winer Winer-AX-July2022
06/22 Build a Guitar-Controlled Synthesizer: LFO and ADSR Ethan Winer Winer-AX-June2022
05/22 Build a Guitar-Controlled Synthesizer: Frequency to Volts and Back Ethan Winer Winer-AX-May2022
04/22 Build a Guitar-Controlled Synthesizer: The Sample & Hold Time Machine Ethan Winer Winer-AX-Apr2022v2
01/22 Build a Current Feedback Headphone Amplifier Brian Bylenok Bylenok-AX-Jan2022
2021      
12/21 Thinking About DC Power Supplies Frans de Wit deWit-AX-Dec2021
12/21 Simple Xtal-Based Motor Control for Turntables Michel Nieuwenhuizen Nieuwenhuizen-AX-Dec2021
10/21 Ultra-Linear:Why It Works And When It Will Not Morgan Jones Jones-AX-Aug2021
10/21 The Tetrahedral Test Chamber Story Geoff Hill Hill-AX-Aug2021
08/21 The DH-220C MOSFET Power Amplifier Bob Cordell and Rick Savas Cordell-AX-Aug2021
05/21 Noise Is Everywhere - Even in MC Input Transformers Burkhard Vogel Vogel-AX-May2021
02/21 X-Altra Moving Coil/Moving Magnet RIAA EQ Preamplifier  Andrew C. Russell Russell-XAltra-AX-Feb2021
01/21 Getting Started with Automotive Audio Bus Brewster LaMacchia LaMacchia-AX-Jan2021
01/21 Live-Edge Dipoles Perry Marshall Marshall-AX-Jan2021
01/21 Four Digital Stylus Force Gauges Gary Galo Galo-AX-Jan2021
2020      
12/20 Article Update: Comparing IMD (and THD) Measurements Burkhard Vogel Vogel-AX-Dec2020
09/20 Loudspeaker Measurements at Home: A Guide for Building Your Own Test Chamber Geoff Hill Hill-AX-July2020
07/20 Build a Fully Balanced Transconductance Preamplifier Dimitri Danyuk Danyuk-AX-June2020
05/20 Build This MoFo! Mike Rothacher Rothacher-AX-May2020
05/20 Stop Worrying About Coupling Capacitors! Ethan Winer Winer-AX-May2020
2019      
06/19 Searching for a Unicorn Brian Lowe Lowe-AX-June2019
03/19 Attenuators for Measurement Jonathan Novick Novick-AX-Mar2019
02/19 An Experimental Cutterhead for Phonograph Disc Recording Jim Wood Wood-AX-Feb2019
02/19 DPA d:vote 4099 Instrument Microphone Stuart Yaniger Yaniger-AX-Feb2019
01/19 The PR-3: A High-Quality Stereo Preamplifier George Ntanavaras Ntanavaras-AX-Jan2019
2018      
11/18 The Incredible Egg Thomas Perazella Perazella-AX-Oct2018
09/18 Energy-Efficient Multi-Level Amplifier Solutions Ward Maas Maas-AX-Sept2018
06/18 The TSM-100:A Turntable Speed Measurement Device George Ntanavaras Ntanavaras-AX-June2018
06/18 Exploring Master Quality Authenticated (Part 2) Ron Tipton Tipton-AX-June2018
05/18 Exploring Master Quaility Authenticated (Part 1) Ron Tipton Tipton-AX-May2018
04/18 A DIY HRTF Binaural Microphone Head  Ron Tipton Tipton-AX-Apr2018
03/18 IK Multimedia ARC 2.5 Advanced Room Correction System Ron Tipton Tipton-AX-Mar2018
02/18 Realistic Stereo from Headphones Ron Tipton Tipton-AX-Feb2018
01/18 Music Streaming Services with Volume Normalization Ron Tipton Tipton-AX-Jan2018
01/18 The 6922 Project Robert Nance Dee Dee-AX-Jan2018
01/18 Reparing Switching Mode Power Supplies Scott Dorsey Dorsey-AX-Jan2018
2017      
12/17 Vinyl vs. CD (Part 3): Exploring Effects Ron Tipton Tipton-AX-Dec2017
11/17 Vinyl vs. CD (Part 2): Repeated Measurements Ron Tipton Tipton-AX-Nov2017
10/17 Build the Mojo Maestro Ethan Winer Winer-AX-Oct2017
10/17 Vinyl vs. CD (Part 1): Measuring the Sound Difference Ron Tipton Tipton-AX-Oct2017
1017 The Denali Voltage Reference Christopher Paul Paul-AX-Oct2017
10/17 Modern JFETs in Audio Circuits Dimitri Danyuk Danyuk-AX-Oct2017
9/17 True Bass in a Large Space Don Keele, Jr. Keele-AX-Sep2017
9/17 Hybrid Electrostatic Loudspeaker with Tailored Dispersion Charlie Mimbs Mimbs-AX-Sep2017
8/17 Early Reflections Ethan Winer Winer-AX-Aug2017
8/17 Loudness Revisited (Part 3): Software Tools Ron Tipton Tipton-AX-Aug2017
7/17 Hypex Electronics: Class-D High-Fidelity Ward Maas Maas-AX-July2017
7/17 Cherry Bomb—A VFET SET Amplifier (Part 2): Construction and Listening Tests Thomas Perazella Perazella-AX-July2017
7/17 Loudness Revisited (Part 2): Varying Methods of Loudness Measurement Ron Tipton Tipton-AX-July2017
06/17 Cherry Bomb—A VFET SET Amplifier (Part 1): The Concept, the Design, and the Plan Modifications Thomas Perazella Perazella-AX-June2017
06/17 A Sources 101 Update Walt Jung Jung-AX-June2017
06/17 Head Space: A Binaural Recording Session Neville Roberts
Roberts-AX-June2017
 
06/17 Loudness Revisited (Part 1): It All Started with Volume Control Ron Tipton Tipton-AX-June2017
05/17 High-Quality Hi-Fi Circlotron Power Amplifiers Gerhard Haas Haas-AX-May2017
05/17 Kismet 5: The 20th Anniversary Edition Fabio Camorani Camorani-AX-May2017
05/17 Streaming Music Experiences (Part 5): Streaming from Sonos and Deezer Ron Tipton Tipton-AX-May2017
04/17
  Streaming Music Experiences (Part 4): Streaming from Spotify
Ron Tipton Tipton-AX-April2017
04/17 DIM-100—A Device for Interfacing and Measuring with Sound Cards (Part 2): Assembly and Testing George Ntanavaras Ntanavaras-AX-April2017
04/17 Use 6C33 Tubes to Build a Push-Pull AB Amplifier Gerhard Haas Haas-AX-April2017
03/17 Build a TM50x Power Module Tester Chuck Hansen Hansen-AX-March2017
03/17 Streaming Music Experiences (Part 3): Streaming from TIDAL HiFi  Ron Tipton Tipton-AX-March2017
02/17 Streaming Music Experiences (Part 2): Streaming Multichannel Audio from Apple TV Ron Tipton Tipton-AX-February2017
01/17 Streaming Music Experiences (Part 1): Streaming Direct Stream Digital Audio Ron Tipton Tipton-AX-January17
01/17 Kii Three: The Next Step in Loudspeaker Evolution Jan Didden and Paul Wilke Didden-Wilke-AX-January2017

2016

     
12/16 Room Correction Revisited (Part 6) Ron Tipton Tipton-AX-December2016
12/16 Optocouplers in a MOSFET Power Amplifier Design Richard K. Mains Mains-AX-December2016
12/16 Retro-Style High-Fidelity Preamplifier Bill Christie Christie-AX-December2016
11/16
  Room Correction Revisited (Part 5)
Ron Tipton Tipton-AX-November2016
11/16 Fairchild 275 Restoration Bruce Brown Brown-AX-November2016
11/16 KEMET's Electrolytic Capacitors: The PEG124 Series Scott Dorsey Dorsey-AX-November2016
10/16 Room Correction Revisited (Part 4) Ron Tipton Tipton-AX-October2016
10/16 Reggie-Phil Chris Paul Paul-AX-October2016
9/16 Room Correction Revisited (Part 3) Ron Tipton Tipton-AX-Sept2016
9/16 Eliminating Room Reflections in Woofer Measurements (Part 2) Richard K. Mains Mains-AX-Sept2016
8/16 Room Correction Revisited (Part 2) Ron Tipton Tipton-AX-Aug2016.zip
8/16 Eliminating Room Reflections in Woofer Measurements (Part 1) Richard K. Mains Mains-AX-Aug2016.zip
7/16 Room Correction Revisited (Part 1) Ron Tipton Tipton-July2016.zip
7/16 The D70 Stereo Tube Amplifier Mark Driedger Driedger-July2016.zip
6/16 An Ecological Power Supply for Power Amplifiers Vincent Thiernesse Thiernesse-AX-June2016
5/16 Universal Tube Power Amplifier System Gerhard Haas Haas-AX-May16.zip
5/16 Higher Order Ambisonics (Part 2) Ron Tipton Tipton-AX-May16.zip
04/16 Higher Order Ambisonics (Part 1) Ron Tipton Tipton-AX-April16.zip
04/16 A 3.1 Channel System Bill Christie Christie-AX-April-16.zip
04/16 TERESA de Luxe Harald Frank Frank-AX-April16.zip
03/16 Build an Audio Headroom Meter James. B. Wood Wood-Mar-2016
03/16 Playing with Room Correction Ron Tipton Tipton-AX-March16.zip
02/16 Willow Revisited: A Design Celebrating the Enthusiasm and the Creativity of the Bulder Robert Nance Dee Dee-AX-Feb16.zip
02/16 Three-Way Loudspeakers with Active Crossovers Ron Tipton Tipton-3-Way-AX-Feb-16.zip
02/16 Immersive Sound (Part 2): Experiments with Dolby Atmos Ron Tipton Tipton-AX-Feb-16.zip
01/16 The iSEMic 725TR Measurement and Recording Microphone Stuart Yaniger Yaniger-AX-Jan16.zip

2015

     
12/15 Immersive Sound: A Look at Auro-3D Ron Tipton Tipton-AX-Dec15.zip
12/15 A Single-Ended Type-A Monobloc Amplifier: Obtain 25 W with Two KT 88 Vacuum Tubes Gerhard Haas Haas-AX-Dec15.zip
11/15 Binaural Sound from Two Loudspeakers (Part 2): Software Options and Afforable Solutions Ron Tipton Tipton-AX-Nov15.zip
11/15 Build the PhaseBuster! James Wood Wood-AX-Nov15-USE.zip
10/15 Binaural Sound from Two Loudspeakers (Part 1): Crosstalk Cancellation and Spectral Compensation Ron Tipton Tipton-AX-Oct15.zip
9/15 Enhanced Stereo (Part 3) Adding Realism to Sound Files Ron Tipton Tipton-Sept-2015.zip
8/15 Enhanced Stereo (Part2): Exploring Enhanced Stereo Solutions Ron Tipton Tipton-Aug-2015
8/15 The Right Filter (Part 3): Phase Corrector 2 Brings Us Closer to the Ideal Crossover Vincent Thiernesse Thiernesse-AX-August15.zip
7/15 The Right Filter (Part 2): Crossover Frequency Tuning Vincent Thiernesse Thiernesse-AX-July15.zip
7/15 Enhanced Stereo (Part 1): The Basics Ron Tipton Tiption-July2015.zip
6/15 Classical Binaural Experiences Ron Tipton Tipton-AX-June15.zip
6/15 The Right Filter Vincent Thiernesse Thiernesse-AX-June15.zip
6/15 Construct a PIC-Based Audio DDS Device Larry Cicchinelli Cicchinelli-AX-June15.zip
5/15 Signal Dynamic and Loudness Ron Tipton Tiption-May2015.zip
5/15 Extending the Arduino-Based Tube Power Amplifier Controller Mark Driedger Driedger-AX-May15-Controller.zip
4/15 Playing with Ambisonics Ron Tipton Tipton_April15
4/15 Construct a Wall Wart Power Supply Larry Cicchinelli Cicchinelli-AX-April15.zip
4/15 Benchmark AHB2 Stereo
Power Amplifier
Gary Galo Galo-AX-April15-Benchmark.zip
3/15 The 5.1 Alternative from Digital Theater Systems Ron Tipton Tipton-AX-Mar15-A
Tipton-AX-Mar15-B
Tipton-AX-Mar15-C
Tipton-AX-Mar15-D
Tipton-AX-Mar15-E
2/15 Surround Sound—The Next Generation: Dolby Laboratories Ron Tipton Tipton-AX-Feb15
2/15 Arduino-Based Tube Power
Amplifier Controller
Mark Driedger Driedger-AX-Feb15
1/15 Quadraphonic Ron Tipton Tipton-AX-Jan15.zip
1/15 MOD 102 Guitar Tube Amplifier Kit: Ready-to-Build Tube Sound Elektor.Labs http://youtu.be/zxkaCPehrtQ

2014

     
12/14 The Continuing Quest for Realistic Recorded Sound Reproduction Ron Tipton Tipton-AXDec14.zip
11/14 Build a Powerful Tube Amplifier Gerhard Haas Haas-AXNov14.zip
8/14 Audio Spectrum Display Design Larry Cicchinelli Cicchinelli-AXAug14.zip
6/14 Build an FM-Stereo Generator George Adamidis Adamidis-AXJune14.zip

2012

     
8/12 A 50-W BJT Stereo Amplifier Sam Dulaney Dulaney-AXAug12.zip
8/12 "PI" Design - A DIY Pre-Amplifier Interface Robert Nance Dee Dee-AXAug12.zip
5/12 An Audiophile's Battery Tube Amp - supplemental information Robert Nance Dee Dee-AXMay12.zip
4/12 Hybrid Electrostatic Loudspeakers Constructed with a Twist Charlie Mimbs Mimbs-AXApril12.zip
2/12 The 5002 Project - supplemental information Robert Nance Dee Dee-AXFeb12.zip

2011

     
12/11 Correction to Figure 5 (p. 30): "The Willow Preamp" Robert Nance Dee gain_stage__rev3.pdf
11/11 Class D Technology for Home Use Table: "The Abletec Class D Amplifier" Wim de Haan ClassD_Tech_4_home_use-TABLE.pdf
9/11 Additional information: “Impedance Matching Transformers for Ribbon Speakers" Angel Rivera Impedance Angel Rivera - Rivera_Updates_AX_9-11.pdf
ImpedanceMatchingExamples.zip
8/11 ECC99 Excel spreadsheet too: "Designing Amps for Maximum Linearity with the ECC99" Rudy Godmaire ecc99designer.xls

2010

     
9/10 Clean Sound from the Drainpipe 8 from Popular Electronics, June 1962 David Weems Weems Drainpip 8.pdf
8/10 Additional Figures: "The Metz Preamp" Reinhard Metz Main board layout.jpg
Control and switch board.jpg
LED board.jpg
Preamp firmware high-level flowchart.jpg
6/10 PCB patters used to contruct the crossover filters, and parts placement: "A Three-Way Tri-Amp Center-Channel System" Andreas Schilloff Schilloff PCB files.zip
3/10 XLS files: "A Power Supply Spreadsheet" Paul J. Stamler PowerSupply60Hz.xls
PowerSupply50Hz.xls

2009

     
11/09 Color Figures (Fig. 4-6): "Distortion Meter" Ed Simon Simon3126_fig4.jpg
Simon3126_fig5.jpg
Simon3126_fig6.jpg
11/09 Audio tracks: "The Essex Echo: Audio According to Hawksford, Pt. 1" Jan Didden Hawksford Jitter Tracks.zip
10/09 Datasheet: "paX Protection System, Part 3" Jan Didden Didden3123 Datashhet.pdf
9/09 paX Amplifier Construction Guide: "paX, Part 2" Jan Didden Didden3038 Guide.pdf
8/09 Circuit boards: "Maintaining Your Balance, Part 2" Thomas M. Perazella Perazella3083 Figure 2.pdf
Perazella3083 Figure 3.pdf
Perazella3083 Figure 4.pdf Perazella3083 Figure 5.pdf
7/09 Rebuilding a Cheap Chinese EL84 Amp Merlin Blencowe Blencowe2996.pdf
7/09 Feedback loop set up: "Setting Feedback On the Mullard 20" Pierre Touzelet Feedback loop set up on the Mullard 20 W.doc
6/09 Design and Measurement Of a Dipole Microphone Mark Williamsen Williamson3063.pdf Measurement Tips
5/09 ezDAC Claudio Negro Negro3051.pdf
4/09 Modding the Music Hall CD25.2 CD Player Kit Ryan Ryan3050.pdf
3/09 Excel application for calculation of Vg1T/U : "Vg1 Correlations" Rudy Godmaire Vg1 Correlations.xls
2/09 A De-Emphasis Test CD Gary Galo Galo3025.pdf
2/09 Noise Measurements of the LSK389B Dual JFET Dennis Colin Colin2993.pdf
1/09 Tri-Way PC boards and parts list: "Tri-Way Low Voltage Supply Part 1" Paul J. Stamler stamler3006_fig4a.pdf
stamler3006_fig4b.pdf
Tri Way Worked Examples Parts lists.xls
1/09 Show Reports: The Munich Hi-End Show 2008, The Rocky Mountain Audio Fest, Burning Amplifier 2008 Jan Didden Didden_Munich.pdf
Didden_RMAF.pdf
Didden_BAF.pdf

2008

     
12/08 Printed circuit boards: "An Automated Level Control" J.R. Laughlin PCB_1.pdf
PCB_2.pdf
PCB_3.pdf
PCB_4.pdf
10/08 Figures 3 & 4: "A Beginner 6BQ5 SE Amp" Rick Spencer Spencer2957_fig3.pdf
Spencer2957_fig4.pdf
10/08 An Isolation Transformer, Part 3 Ed Simon Simon2945.pdf
10/08 Testing Loudspeaker: Which Measurements Matter, Part 1 Joseph D’Appolito D'Appolito2960.pdf
9/08 Testing Loudspeakers: Which Measurements Matter, Part 1 Joseph D’Appolito D'Appolito2959.pdf
9/08 More Box, Less Sawdust Mark Rumreich Rumreich2964.pdf
9/08 A Line-Cleaning Filter, Part 2 Ed Simon Simon2944.pdf
8/08 An On-Peak Power Supply, Part 1 Ed Simon Simon2943.pdf
7/08 A Belt-Drive Turntable Upgrade Gary Galo Galo2931.pdf
7/08 A Graphical Evaluation of Harmonic Distortion in Valves Pierre Touzelet Touzelet2917.pdf
6/08 A Multiple "Wall-Wart" Power Supply Ron Tipton Tipton2926.pdf
6/08 Is SACD Doomed? Gary Galo Galo2941.pdf
5/08 Valve (Tube) Regulated Power Supplies Terry Bicknell Bicknell2890.pdf
5/08 The Sidewoofer Line Array Ken Bird Bird2483.pdf
5/08 The Mighty Midget Pete Millet Millet2903.pdf
4/08 Horn Theory: An Introduction, Part 2 Bjørn Kolbrek Kolbrek2885.pdf
4/08 Everything You Wanted to Know About SPL Meters Ethan Winer Winer2901.pdf
3/08 Soldering: A Tutorial Ed Simon Simon2894.pdf
3/08 Horn Theory: An Introduction, Part 1 Bjørn Kolbrek Kolbrek2884.pdf
3/08 Figure 12: "The Noise (Analysis) Machine" Jack Walton Walton2905_fig12.pdf
3/08 Circuit Board Basics: "Amp6" J.R. Laughlin Laughlin2887cb.pdf
2/08 AES Multi-Tracks in New York 2007, Part 1 David J. Weinberg Weinberg2906.pdf
1/08 In Praise of Wall Warts Paul J. Stamler Stamler2874.pdf
1/08 A Hybrid High-Fidelity Power Amplifier Bill Christie Christie_fig4.pdf
Christie_fig5.pdf
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