Audio     Electronics > Circuits > Audio
	Analog Devices Audio Circuits Application Notes	Introduction
Classic and Vintage Audio Circuits Page	Introduction
Analog Music Zone Guitar Effects Schematics	Introduction
Andrea's projects	Introduction
Audio Electronic Design	Introduction
automatic translation to English	Introduction
ESP Audio Projects	Introduction
ESP Audio Pages	Introduction
Pro Audio Equipment Schematics Page	Introduction
The Do-It-Yourself Audio Corner	Introduction
1.5V AF Amplifier	Introduction
22 Watt Audio Amplifier	Introduction
2 Watt Amplifier	Introduction
3 Transistor Audio Amp (50 milliwatt)	Introduction
8 Watt Audio Amp	Introduction
A HIFI class D audio power amplifier	Introduction
Amplification audiophile et DIY	Introduction
automatic translation to English	Introduction
Cheap thingies to help you make some racket	Introduction
DIY Class-A Audio Amp	Introduction
Emitter-follower-power-amplifier	Introduction
Lidström Improved ZEN i	Introduction
Low distortion audio amplifier	Introduction
Low Power Audio Amplifier	Introduction
Power amplifier has transient rail-to-rail swing	Introduction
Quick and Dirty Audio Amplifiers	Introduction
Sanken Hybrid Audio Power Amplifier Data	Introduction
Simple Class A Amplifiers	Introduction
The 2-Channel Power Amplifier: Design and Testing	Introduction
The Pass Zen Amplifier	Introduction
100W RMS Amplifier	Introduction
120 Watt Vertärker	Introduction
50 Watt Amplifier	Introduction
60 Watt Into 8 Ohms Power Amplifier	Introduction
75W Power Amplifier	Introduction
Ampli MOSFET	Introduction
Ampli MOSFET 360W	Introduction
Bridge/Parallel Amplifier (BPA-200) Documentation	Introduction
Cheap thingies to help you make some racket	Introduction
El-Cheapo - A Really Simple 60W Power Amplifier	Introduction
Korkeallatuinen stereovahvistin 2 x 220W	Introduction
M250: A 250W stereo power amplifier	Introduction
P400 hi-fi high end audio power amplifier	Introduction
Pass Laboratories DIY Projects	Introduction
SDS Labs Schematics	Introduction
Single Chip 50 Watt / 8 Ohm Power Amplifier	Introduction
The Leach Amp	Introduction
The Leach SuperAmp	Introduction
The LM12	Introduction
Vahvistin National Semiconductorin LM3886 piirillä	Introduction
Brystom Power Amplifiers Circuit Diagrams	Introduction
Crest Audio LT Series LT100, LT1500 and LT2000 Schematic Set	Introduction
PHONIC Technical Bulletin	Introduction
Professional Sound Systems	Introduction
technical pages	Introduction
QSC Audio	Introduction
service manuals and circuit diagrams	Introduction
QSC Audio Service Manuals and Schematics	Introduction
Renkus-Heinz Schematics	Introduction
A conceptually new high-frequency switched-mode power amplifier technique eliminates current ripple	Introduction
Point to Point Versus PCB Amps - What's the difference?	Introduction
Star Grounding in Tube Amplifiers	Introduction
The Class-A Amplifier Site	Introduction
20 Watt Power Amplifier	Introduction
Car amplifier information and schematics	Introduction
Car Amplifier Schematic	Introduction
Car Audio Schematics	Introduction
Car tube pre amplifier	Introduction
Do It Yourself Car Amplifier	Introduction
article by Mr. T. Giesberts	Introduction
A DC Fault Protection Circuit for Audio Amplifiers	Introduction
Bridging Adaptor For Power Amplifiers	Introduction
DIY Massive Heatsink Case	Introduction
Loudspeaker Protection and Muting	Introduction
Loudspeaker Protection circuit	Introduction
Power Amplifier Clipping Indicator	Introduction
Soft Power On Tester for Amplifiers	Introduction
Speaker protector	Introduction
A DIY Headphone-Amplifier with Natural Crossfeed	Introduction
An Enhanced-Bass Natural Crossfeed Filter	Introduction
project addenum	Introduction
An Acoustic Simulator for Headphone Amplifiers	Introduction
Build These Noise-Canceling Headphones	Introduction
Designing an Opamp Headphone Amplifier	Introduction
HeadBanger Headphone Amp Construction Kit	Introduction
Headphone Amplifier	Introduction
Headphone Amplifier from SDS Labs	Introduction
HeadWize Projects	Introduction
Kumisa Mk. II	Introduction
Mapletree Audio Designs (MAD) Ear+ Stereo Headphone Amplifier Kit	Introduction
SDS Labs Headphone Amp	Introduction
Top-Level OTL Tube Headphone Amplifier	Introduction
HJ-4P Professional headphone distribution box	Introduction
HJ-6 Standard headphone distribution box	Introduction
100W Guitar Amplifier	Introduction
Cool Schematics	Introduction
ALL-FET MC phono preamp	Introduction
Borbely Audio	Introduction
A Pocket Headphone Amplifier	Introduction
Audio Preamp	Introduction
Fender Pre-amp with Horizonal Tube Mounting	Introduction
Hi-Fi Preamplifier	Introduction
High-Performance Audio Applications of The LM833	Introduction
Mic-Pre Pan Pot Circuit	Introduction
Simple Car Preamplifier and Artificial Earth	Introduction
Simple Guitar Preamplifier	Introduction
Vanhat vinyylilevyt CD-levyiksi tai MP3-kapetiksi RIAA-korjaimen avulla	Introduction
Power Amplifier Design Guidelines	Introduction
Cool Audio	Introduction
LM12CL	Introduction
25L6 Amp	Introduction
A hybrid amplifier using a 5687 tube and Magnatec PowerMosFets	Introduction
Ampage	Introduction
Aren's Attic Tube amplifiers	Introduction
Bob's Music/Vacuum Tube Audio / Electronics page	Introduction
Car tube pre amplifier	Introduction
Klaus Schiffer's audio web site	Introduction
Les projets en cours	Introduction
Musical Instrument Tube Amp Building, Maintaining and Modifying FAQ	Introduction
Pure A class	Introduction
SDS Labs Schematics	Introduction
Sheldon's Audio Designs	Introduction
Tube Guitar Amp	Introduction
Tube Buffer for CD Player	Introduction
Tube Microphone Preamplifiers V72 (Telefunken/Siemens/Maihak/TAB)	Introduction
Vintage Quad equipment circuit diagrams	Introduction
Phantom Power Supply Circuit	Introduction
Regulated 12 Volts DC Power Supply for Vacuum Tube Heaters	Introduction
Regulated Vacuum Tube Power Supply	Introduction
6 Input Mixer	Introduction
Advanced Mixer Design	Introduction
Noise & Headroom in Mixers	Introduction
An Automatic Microphone Mixer	Introduction
DACS (distributed audio control system)	Introduction
High Quality Sound Mixer	Introduction
Microphone Mixer	Introduction
Rane MP 24 Mixer Service Manual	Introduction
Simple audio mixer for two signal sources	Introduction
Single capacitor powers audio mixer	Introduction
Stage and Recording Mixer	Introduction
Stereo Mixer	Introduction
A Two-Channel Noise Gate	Introduction
An Unbalanced Mute Circuit For Audio Mixing Channels	Introduction
A New Balanced Audio Input Circuit for Maximum Common-Mode Rejection in Real World Environments	Introduction
Audio Transformers	Introduction
Additional RFI Protection for Line Input Circuits	Introduction
External Isolation Transformer Box for Mackie (and other) Mixers Eliminates RFI Problems	Introduction
High CMRR Balanced Interface for Crystal 18 or 20 Bit A/D Converters	Introduction
Internal Modification to Mic Inputs of the Mackie 1604 Mixer Eliminates RFI Problems	Introduction
JT-6110K-B at Input Stage for Crystal A to D Converters	Introduction
JT-11P-1 Balanced Tube Line Input Stage	Introduction
JT-11SSP-6M as Input Transformer for Crystal CS5367 A/D Converter	Introduction
JT-16-A Improves Performance of SSM2015 Mic Preamp IC	Introduction
JT-16-A Improves Performance of SSM2017 Mic Preamp IC	Introduction
JT-MB-C in Low Noise, High Isolation Line Receiver for Low-Z Sources	Introduction
JP-11P-1 Input transformer improvement for electronically balanced input	Introduction
Jensen Transformers Application Schematics	Introduction
JT-MB-C Isolates both Mic and Line Inputs of Inexpensive Mixer	Introduction
JT-MB-C Mic Input Isolation for Mackie Mixers	Introduction
JT-MB-C Real Mic Inputs & Phantom Power for Sony DAT	Introduction
Making Differential Probes	Introduction
Subtleties count in wide-dynamic-range analog interfaces	Introduction
article from EDN magazine	Introduction
12 dB Amplifier and High Current Line Driver with DC Servo	Introduction
20 dB Amplifier and High Current Balanced Line Driver	Introduction
Driving a balanced line, and getting 3 signals down 2 lines!	Introduction
High Output Line Driver for Single Ended Power Supply	Introduction
JT-11-BM High Level Differential IC Output Stage with DC Servo	Introduction
JT-11-BM High Level High Current Differential Output Stage with DC Servo	Introduction
JT-123-S Line Driver with Feedback Around the Transformer	Introduction
JT-123-BL High Level Low Impedance Differential Output Stage with DC Servo	Introduction
Low Noise version of High Level Output Stage in 1031	Introduction
Mixed feedback drive circuits for audio output transformers	Introduction
Simple 0 to 24 dB Gain Amplifier and Balanced Line Driver	Introduction
Balancing Acts	Introduction
Balanced Line Driver & Receiver	Introduction
Balanced Line Inputs/Outputs for Silicon Graphics Workstations	Introduction
Balanced Line Technology	Introduction
Bridging Line Amplifier	Introduction
Transfomers for audio interfacing	Introduction
Line-level transformers in High-End Audio	Introduction
Grounding and shielding in balanced inputs and outputs which are transformer coupled	Introduction
JT-11-YZPC in Unbalanced Long Line Driver/Isolator	Introduction
Long Lines Driver	Introduction
The Allen & Heath GL2 - in anger	Introduction
A Direct Box can be inDIspensible	Introduction
AV-1 Tech Sheet (Direct box,)	Introduction
AV-1PV Tech Sheet	Introduction
CB-1 Direct Box	Introduction
DB-1 Direct Box	Introduction
DB-4 Direct Box	Introduction
Direct Injection Box for Recording & PA Systems	Introduction
Jensen Direct Box Transformers	Introduction
JT-DB-E Standard Musical Instrument or Synthesizer Direct Box	Introduction
JT-10KB-D Isolates and Converts Speaker Drive to Line Level	Introduction
JT-11-FL provides Isolated Line Output from Guitar Amplifier	Introduction
JT-11-FL Isolates & Converts Guitar Amp Speaker Out to Line Output	Introduction
JT-11P-1 Conversion of Unbalanced Input to Balanced	Introduction
JT-DB-E Full-featured Direct Box Application Schematic	Introduction
JT-DB-E Direct Box for Very High Level Signals	Introduction
JT-DB-E Standard Musical Instrument or Synthesizer Direct Box	Introduction
Tillverka din egen DI-box	Introduction
Direct Injection Box for Recording & PA Systems	Introduction
Electric Crayons, Anyone? (A Vacuum Tube Microphone Preamp / Direct Box Project)	Introduction
Mike Pads and Other Small Gadgets	Introduction
JT-11B-1 + Phantom Buffer Provide Balanced Guitar Output	Introduction
JT-11P-1 in 4-Way Active Guitar Splitter	Introduction
JT-10B-D Used in Line Level 2-Way Splitter/Isolator	Introduction
JT-11P-1 in 2-Way Passive Guitar Splitter	Introduction
MS-2 Mic Splitter	Introduction
MS-82P Microphone Splitter with Phantom Power Buss	Introduction
Theory and Construction of Mic Splitters	Introduction
IT-1 Inline 600/600 ohm line transformer	Introduction
IT-4 four channel isolation transformer unit	Introduction
JT-11P-1 Unbalanced Automotive or Consumer Application	Introduction
JT-11P-1 Conversion of Unbalanced Input to Balanced	Introduction
JS-11SSP-6M 150 ohm line to 600 ohm load application	Introduction
JT-11SSP-6M 600 Ohm Line Isolation Application	Introduction
JS-11SPP-6M 600 ohm line isolator with line termination switch	Introduction
JT-11SSP-6M Universal Patchbay Isolation Application	Introduction
Dual JT-MB-C Microphone Combining Circuit	Introduction
JT-11SSP-6M Passive Stereo Matrix for M-S Mic Technique	Introduction
MC-2 Microphone Combiner	Introduction
Simple line mixer	Introduction
Simple two line output combiner	Introduction
Stereo to Mono Combiner for Balanced Systems	Introduction
Interconnection of Balanced and Unbalanced Equipment	Introduction
JT-10KB-D & JT-DB-E Provide J-Box Consumer to Studio Interfaces	Introduction
JT-10KB-D & JT-6110K-B Pro to Consumer Interfaces	Introduction
Audio Transformer: The Ultimate Noise Killers	Introduction
Grounding and Shielding	Introduction
Internal Modification to Mic Inputs of the Mackie 1604 Mixer Eliminates RFI Problems	Introduction
Jensen Transformers Application Schematics	Introduction
JT-11P-1 as Phase Splitter with Symmetrical Outputs	Introduction
JT-10KB-D Isolates and Converts Speaker Drive to Line Level	Introduction
JT-11P-1 used as Unbalanced Polarity Inverter	Introduction
JT-11-DM Converts Unbalanced Output to Balanced	Introduction
JT-11SSP-6M Bi-directional Lo-Z Long Line Application	Introduction
JT-6110K-B Isolates 70 Volt Line and Converts to Line Level	Introduction
JT-DB-E Converts Consumer Stereo Inputs to Mono Balanced Mic Output	Introduction
JT-MB-C Isolates both Mic and Line Inputs of Inexpensive Mixer	Introduction
JT-MB-C Real Mic Inputs & Phantom Power for Sony DAT	Introduction
JT-MB-C Mic Input Isolation for Mackie Mixers	Introduction
JT-MB-D Converts 600 Ohm Unbalanced Mic to 150 Ohm Balanced Mic Line	Introduction
Mixed feedback drive circuits for audio output transformers	Introduction
Lundahl Transformers	Introduction
2-wire Remot Microphone Amplifier	Introduction
Opamp Labs	Introduction
A High Performance Transformer-Coupled Microphone Preamplifier	Introduction
A Low Noise Microphone Preamp with Phantom Power Option	Introduction
Amplified Ear	Introduction
A Vacuum Tube Microphone Preamp / Direct Box Project	Introduction
phantom power supply	Introduction
Balanced Microphone Preamp Project	Introduction
Balanced Low Noise Microphone Preamplifier Design	Introduction
Condenser microphone hookup	Introduction
DIY Speaker Testing Microphone Preamp	Introduction
Dual Phantom Power Microphone Preamplifier	Introduction
PAiA Electronics	Introduction
ECM Mic Preamplifier	Introduction
Electric Crayons, Anyone? (A Vacuum Tube Microphone Preamp / Direct Box Project)	Introduction
IC mic preamp uses Jensen Twin-Servo topology	Introduction
Intercom preamp	Introduction
Jensen Transformers Application Schematics	Introduction
JT-13K6-C in Simple One IC Stage Mic Preamp	Introduction
Kondensaattorimikrofonin esivahvistin	Introduction
Low impedance microphone amplifier	Introduction
Low Noise Balanced Microphone Preamp	Introduction
Low Noise Microphone Preamplifier	Introduction
Mic-Pre Pan Pot Circuit	Introduction
Microphone preamp	Introduction
Mu Stage Tube Mic Pre	Introduction
PAiA Tube Mic Preamp	Introduction
Preamp for low-Z microphones	Introduction
Rane MS 1b microphone preamplifier circuit diagram	Introduction
Simple microphone preamplifier	Introduction
Standard Microphone Preamplifier Input Circuitry	Introduction
Taos Amp Solid State Mic Preamp	Introduction
Vintage Neve Class A Circuit Information	Introduction
Boundary-layer dish microphone	Introduction
Build a Microphone plug	Introduction
Build a pair of binaural microphones	Introduction
Build These Noise-Canceling Headphones	Introduction
Computer Microphone	Introduction
DAT-Heads Digest #195	Introduction
DIY microphone for Sony MD R35 minidisc recorder	Introduction
Electret MIC Apps	Introduction
Electret microphone connection	Introduction
Electret microphone powering circuits	Introduction
Homemade Binaural Mics	Introduction
Inductive pickup	Introduction
Interfacing Microphones to Computer Sound Cards	Introduction
JT-MB-D Passive Stereo Matrix for M-S Mic Technique	Introduction
JT-MB-C Used to Phantom Power the Realistic PZM Mic	Introduction
Making a rugged, connectorized microphone from a Panasonic microphone capsule	Introduction
Microphone uses phantom power	Introduction
Radio Shack Pressure Zone Microphone (PZM) Modifications	Introduction
Schematics of old tube mics	Introduction
Sony C-37A Condenser Microphone	Introduction
Speaker Microphone	Introduction
Taos Amp Stereo Bar	Introduction
Telefunken (Neumann) U47 FET Retrofit	Introduction
To use a Speaker as a Mike	Introduction
Couch Drop: Momentary on/off floor switch for microphones	Introduction
Cough Drop Momentary Muting Switch	Introduction
Phantom Power Supply Circuit	Introduction
Pop free Microphone on/off switch	Introduction
Hi-Fi Preamplifier	Introduction
Phono Preamp	Introduction
Phono Preamps For All	Introduction
QSX Mark II - The extreme phono (RIAA) amplifier	Introduction
RIAA Compensated Stereo Preamp	Introduction
Three High Accuracy, RIAA/IEC, MC and MM Phono Pre-Amplifiers	Introduction
Pre-Amp Head Cassette dengan LM 387	Introduction
The ampage schematic collection	Introduction
A Better Volume Control	Introduction
Audio level control with resistive optocouplers	Introduction
Audio switching applications for resistive optocouplers	Introduction
CMOS IC makes low-cost digital potentiometer	Introduction
Constant Power PAN Control Circuit for Microphone for Microphone Audio Mixing	Introduction
Construction of a diy motorized volume control	Introduction
Convert voltage to potentiometer-wiper setting	Introduction
Digitally control gain over a ±40-dB range	Introduction
Digital stereo potentiometer	Introduction
Digital Volume Control	Introduction
Elektroninrn potentiometri	Introduction
Fixed Attenuators	Introduction
Gain Control	Introduction
Inexpensive relays form digital potentiometer	Introduction
Improve FET-based gain control	Introduction
Linear potentiometer implements logarithmic gain control	Introduction
Nine Ways to Adjust Signal Level	Introduction
Op amp linearizes attenuator control response	Introduction
Op amp linearizes response of FET VCA	Introduction
Printer port activates CMOS switches	Introduction
Programmable-gain amplifier is low-cost	Introduction
Single stage gives logarithmic gain steps	Introduction
Single switch controls digital potentiometer	Introduction
Single switch controls digital potentiometer	Introduction
Tack a log taper onto a digital potentiometer	Introduction
Technical Secrets of the Crossfader	Introduction
Variable-gain stage uses voltage-output DAC	Introduction
VISW 8 x 4 Stereo audio/video router	Introduction
Voice-Over Circuit	Introduction
Voltage controlled amplifier	Introduction
Voltage Controlled Audio Panner	Introduction
3 KHz low pass filter plus audio amplifier	Introduction
Adjustable 60Hz Filter	Introduction
A Weighting Filter For Audio Measurements	Introduction
Closing the loop deepens notches	Introduction
Design of Passive Crossovers	Introduction
Five Band Mono Graphic Equaliser	Introduction
Active Filters	Introduction
Audio Graphic Equaliser	Introduction
Designing A Pocket Equalizer For Headphone Listening	Introduction
Filters	Introduction
Have Ya Ever Been Too High??	Introduction
LMC835	Introduction
application note	Introduction
Multiple Feedback Bandpass Filter	Introduction
Musical Instrument (Expandable) Graphic Equaliser	Introduction
Notch Filter	Introduction
Parametric And Sub-Woofer Equaliser	Introduction
Passive filters fill the bill at audio frequencies	Introduction
Simple, Easy Parametric and Graphic EQ's, Plus Peaks and Notches	Introduction
Subwoofer Equaliser Using The Linkwitz Transform Circuit	Introduction
spreadsheet calculator	Introduction
Tone Control Circuit	Introduction
Tone Control	Introduction
PCB design	Introduction
notes	Introduction
24db/octave Linkwitz-Riley	Introduction
A 2nd Order All-Pass 80Hz Active Crossover	Introduction
High-Performance Audio Applications of The LM833	Introduction
Passive filters fill the bill at audio frequencies	Introduction
Passive Line-Level Crossover	Introduction
Renkus-Heinz Schematics	Introduction
Schematics Of Various Tubed Crossovers	Introduction
Subwoofer-jakosuodin(Subwoofer Crossover)	Introduction
A Two Channel Noise Gate	Introduction
Audio Amp Output Power Limiter	Introduction
Audio compressor	Introduction
Audio Limiting Circuits	Introduction
Audio level control device	Introduction
Compressor applications for resistive optocouplers	Introduction
Compressor using photoresistor	Introduction
Designing A Limiter For Headphone Amplifiers	Introduction
HeadWize	Introduction
Dynamic Range Processor	Introduction
Dynamiikan laajennin/kavennin	Introduction
Effective AGC Amplifier Can Be Built At A Nominal Cost	Introduction
Electro-Optical Audio AGC Circuit	Introduction
Fast Audio Peak Limiter	Introduction
Q&D Compressor 2	Introduction
Stereo Compressor	Introduction
Teletronix LA-2A Leveling Amplifier	Introduction
The Morgan Compressor/Limiter	Introduction
Ultra Simple Bass Guitar Compressor	Introduction
What Compressor Page	Introduction
Analog Music Zone Guitar Effects Schematics	Introduction
Digital Echo Unit	Introduction
Distortion Effect (for guitars)	Introduction
Effect Rack Unit	Introduction
Effectronics Schematics	Introduction
Guitar Amplifiers	Introduction
Guitar Amplifiers Overdrive & Distortion Effect Circuits	Introduction
Guitar Effects Boxes	Introduction
Guitar Effec Circuits	Introduction
Guitar Fuzz Effect	Introduction
Guitar Reverb Pedal	Introduction
Guitar-related Circuits	Introduction
Guitar Vibrato Unit	Introduction
Harmony Central	Introduction
Humbucking & Noise-Reducing Electronics for guitars	Introduction
Improving a guitar	Introduction
Musical Instrument (Expandable) Graphic Equaliser	Introduction
Not Just Another Headphone Amp	Introduction
Slew Rate Control	Introduction
Spring Reverb Unit For Guitar	Introduction
The GEO-Fex collection of vintage and new-design effects and musical related DIY	Introduction
The Guitar Effects Oriented Web Page	Introduction
The Guitar Effects Oriented Web Page	Introduction
The Technology of the Tube Screamer	Introduction
The Technology of Wah Pedals	Introduction
Vox AC30 Guitar Amplifier Simulator	Introduction
CD Buddy - Karioke device	Introduction
The Truth About Vocal Eliminators	Introduction
Build A Stereo Synthesizer	Introduction
Burwen audio processor documentation	Introduction
Digitally Control Phase Shift	Introduction
Dynamic Linear Expender	Introduction
Mixed feedback drive circuits for audio output transformers	Introduction
Lundahl Transformers	Introduction
Square wave to sine wave converter circuit	Introduction
Stereo Width Controllers	Introduction
Synthfool	Introduction
Simple Surround Sound Decoder	Introduction
Surround Sound Decoder MK1	Introduction
Surround Sound Decoder Mk2	Introduction
Andrew's S/PDIF Stuff	Introduction
CD-ROM to MD	Introduction
Cheap TOSLINK Transmitter	Introduction
Coax Digital Out to MD	Introduction
Coaxial S/P-DIF output for the DTC790	Introduction
Optical output for Creative Infra CD-ROM	Introduction
SPDIF Circuits	Introduction
SPDIF RCA to (Optical + RCA) Adapter	Introduction
A SCMS killer circuit	Introduction
ftp://ftp.cs.ruu.nl/pub/MIDI/DOC/pbscms.html	Introduction
Copybit deleter	Introduction
Defeat SCMS page	Introduction
SDS Labs DAC Page	Introduction
CS8420 is asynchronous sample rate converter chip datasheet	Introduction
evaluation board circuit	Introduction
AC-3 for the CLD-1090 and CLD-XXXX	Introduction
CDplayer's Project	Introduction
Common AC-3 RF Circuit Designs	Introduction
DIY Dolby Digital Modification Page	Introduction
The d-box in a better look	Introduction
120 Second Voice Recorder	Introduction
ISD25120	Introduction
Velleman K8030 Electronic Recording/Playback Module	Introduction
Digital Delay Unit For Surround Sound	Introduction
Passive circuit monitors AES data	Introduction
-30dBm to +30dBm Audio Level Meter	Introduction
Opamp Labs	Introduction
Audio LED VU meter	Introduction
Audio Millivoltmeter	Introduction
Audio Output Level Meter	Introduction
High-resolution volume-unit meter simplifies CD recording	Introduction
LED Audio VU Meter	Introduction
LM3916N bar graph driver	Introduction
Peak Reading Audio Level Meter	Introduction
Simple circuit forms peak/clipping indicator	Introduction
Sound Level Meter	Introduction
Stereo VU Meter	Introduction
The Allen & Heath GL2 - in anger	Introduction
Three-Level Audio Power Indicator	Introduction
Understanding Peak-Reading Meters	Introduction
VU And PPM Audio Metering	Introduction
VU Meter	Introduction
VU Meter Amplifier	Introduction
VU Stereo Meter	Introduction
Room Noise Detector	Introduction
A-weighting filter	Introduction
A Weighting Filter For Audio Measurements	Introduction
Build a Microphone Polarity Tester	Introduction
Building the L-R Test Set	Introduction
Linkwitz Cosine Burst Generator	Introduction
Microphone Circuit Test Oscillator	Introduction
The ESP SIM (Sound Impairment Monitor)	Introduction
Distortion Analyser	Introduction
Power Amplifier Clipping Indicator	Introduction
Pre-Distortion Techniques: Build a Tape Linearizer and a Distortion Analyzer	Introduction
Self Oscillating Amplifier for Distortion Testing	Introduction
1 kHz Audio Oscillator	Introduction
3 Channel Spectrum Analyzer	Introduction
DIY Speaker Testing Microphone Preamp	Introduction
Measuring Input and Output Impedance	Introduction
Simplified Measurement of Output Impedance	Introduction
Spectrum Analyzer and Equalizer Designs	Introduction
Burwen TNE7000 Transient Noise Eliminator	Introduction
Burwen DNF1201A Dynamic Noise Filter	Introduction
Infrared Head Phones	Introduction
Laser Link Communicator	Introduction
A Better Volume Control	Introduction
Amplifier Thermal Protection and Shutdown Circuit	Introduction
Amplifier Timer	Introduction
Ask the Applications Engineer	Introduction
Analogue Devices	Introduction
Audio Auto Shutoff	Introduction
Circuit combines power supply and audio amplifier	Introduction
Class A Amplifier Design	Introduction
Class D audio-power amplifiers: Interactive simulations assess device and filter performance	Introduction
Class-T Digital Audio Amplifier Evaluation Board using Digital Power Processing Technology EB-TA2020 from Tripath Technology	Introduction
Designing With Opamps	Introduction
DIY class A amplifier chassis & massive heatsink	Introduction
EDN ears-on project: Listening to Class D	Introduction
George Krilov audio schematics page	Introduction
Guitar Effects FAQ	Introduction
Jensen Transformers Application Schematics	Introduction
JT-115K-E90 Sync Conversion for Magna-Tech 69C Repro Amplifier	Introduction
Load Sensing Automatic Switch	Introduction
Loudspeaker Protection and Muting	Introduction
Main principles of amplifier wiring	Introduction
Mixed feedback drive circuits dor audio output transformers	Introduction
Mosfet Power Amplifiers	Introduction
NE555 drives a speakes: Pulse Width Modulation Amplifier	Introduction
Optocoupler Application Guide	Introduction
Philips SAA1099 Sound Generator	Introduction
Proper Grounding Inside Equipment Avoids Ground Noise Coupling (aka Pin 1 Problems)	Introduction
Pushing the Limits of Audio Power Amplifiers	Introduction
Removing the DC Thump from Audio Circuits	Introduction
Signal Detecting Auto Power-On Unit	Introduction
Sheldon's Audio Designs	Introduction
Simplest Ever Amplifier Bridging	Introduction
Simulation Electronique SPICE	Introduction
Soft-Start Circuit For Power Amps	Introduction
Subtleties count in wide-dynamic-range analog interfaces	Introduction
The ALTMANN SPLIF Amplifier Topology	Introduction
Thermo-Fan To Keep Your Amp Cool	Introduction
Using Current Sources, Sinks & Mirrors In Audio	Introduction
Variable Amplifier Impedance	Introduction
Andrea Ciuffoli Document Page	Introduction
Anti-RIAA Equalizer for Line to Mag Phono Converter	Introduction
JT-11P-1 used as Unbalanced Polarity Inverter	Introduction
JT-11P-1 Unbalanced Automotive or Consumer Application	Introduction
Model Train Diesel & Horn Sound Module	Introduction
Cirrus Logic Consumer & Professional Audio ICs	Introduction
Cirrus Logic CS4334/35/36/37/38/39: 8-Pin, 24-Bit, 96 kHz Stereo D/A Converters	Introduction
TDA1387T; Stereo Continuous Calibration DAC (CC-DAC)	Introduction
CS3310: Stereo Digital Volume Control	Introduction
Cirrus Logic	Introduction
DS1267 Dual Digital Potentiometer	Introduction
Dallas Semicondictor	Introduction
Analog record and playback IC's	Introduction
Sanyo Semiconductor Product Database	Introduction
JT-11-DM Basic Hum Stopper Transformer isolation box	Introduction
Basic Active Filter Circuit Blocks	Introduction
A Basic Introduction to Filters	Introduction
Guitar Amplifier Basics	Introduction
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