DIY speaker building information
Last updated: 04:25 AM Friday, April 15, 2011
DIY Loudspeaker Driver Selection Guide is a vast resource for information on recommended drivers compiled by Bob Stout. There is data on driver materials, enclosure types, suggestions on kits, an extensive list of drivers, vendors and more.
JPO's Speaker Building Link List is one of the largest lists of links related to speaker building that you will find anywhere.
Rane Professional Audio Reference is a complete list and dictionary of just about every audio term you can think of.
Madisound Discussion Forum
Parts Express Technical Discussions
Speakerbuilder.net Discussion Board
The Subwoofer DIY Page
Audio Corner Discussion Forum
WinISD is freeware speaker design software by Juha Hartikainen that can be used to design sealed, vented and bandpass enclosures.
FRD Consortium is a group of guys who all have written tools for use in the design and development of loudspeaker systems.
Unified Box Model is an Excel spreadsheet developed by Kristian Ougaard. It uses a driver's T/S parameters to model closed, vented and passive radiator enclosures, including frequency response and cone excursion graphs. This terrific little utility is free.
Speaker Workshop by Audua, Inc. is a program that can be used to assist the user in designing and building loudspeaker systems. Program features include measurement of driver impedance and frequency response, passive components and harmonic distortion. Crossovers can be designed and optimized. FFT and inverse FFT analysis can also be performed. Best of all, the program is free.
Harris Technologies are the creators of BassBox Pro and Xover Pro speaker enclosure and crossover design software programs. These programs include a database with the parameters of over 6000 drivers.
True Audio produces the WinSpeakerz and MacSpeakers box modeling programs. The programs also include vent and crossover calculators and an extensive driver database.
LspCAD, developed by Ingemar Johansson, is a Windows program for the design of loudspeaker enclosures as well as passive and active crossovers. Measurement info can be imported from several of the major measurement programs and used with simulated data. Room response can be modeled. An add on program, justMLS, can be used to do frequency response and impedance measurement if you do not have a separate measurment system. Very powerful program. The LspCAD discussion group can be found at http://groups.yahoo.com/group/lspcad-users.
Praxis, by Liberty Instruments, is a measurement and analysis system that uses your soundcard in conjunction with a USB "AudPod" device. It will measure frequency response, impedance, harmonic and intermodulation distortion, T/S parameters and much more. Powerful scripting capabilities are also included. The free demo will measure T/S parameters and do dual channel RTA spectrum analysis. The AudPod is required for the other more robust features of the program. Praxis and the older Liberty Audiosuite measurement tools can be discussed at the LAUD discussion group which can be found at http://groups.yahoo.com/group/lauduserslist.
SoundEasy, by Bodzio Software, is a very powerful program for the design of loudspeakers. It will import impedance and SPL measurement data from various programs and model up to 5-way speaker systems. It will model both passive and active crossovers, do crossover optimization and model passive radiator and transmission line systems. The SoundEasy discussion group can be found at http://groups.yahoo.com/group/SoundEasyuserslist.
CLIO, by Audiomatica of Italy, is a combination software/hardware PC-based measurement system. Available in Lite and Standard versions, CLIO can measure Thiele/Small parameters, frequency and phase response, impedance, THD and more. It runs under DOS, however, a new Windows version of the software will be available soon.
LinearX Systems are the developers of the LEAP enclosure analysis and LMS measurement programs. These programs are very powerful but are suited to the semi-pro designer due to their cost and complexity.
The Esquire is a two-way minimonitor designed by Scott Blaier using the highly regarded Vifa D27TG-45-06 tweeter and P13WH-00-08 mid-bass drivers. These speakers should be relatively easy and inexpensive to build.
The Ariel and ME2 loudspeakers are designed by Lynn Olson, Editor, Valve & Tube News and Associate Editor, Positive Feedback Magazine. These speakers use the Scan-Speak D2905/9000 series tweeters and Vifa P13WH-00-08 midrange drivers in an MTM arrangement in a TL enclosure. This site gives detailed information on building these speakers as well as other information of interest to the DIYer. Note: these speakers are NOT recommended as a first-time project.
The Bang! by Avatar Audio was originally designed as an entry in a $100/pair loudspeaker design contest. Built around inexpensive drivers available from MCM Electronics. Also available is The Pop!, a small shielded two-way speaker also based on inexpensive MCM drivers.
The Dayton III is a 2-way MTM loudspeaker designed by Wayne Jaeschke of SpeakerBuilder.net. It's built around modestly priced Dayton drivers and components available from Parts Express.
The A/V-1 loudspeaker by GR Research is a two-way mini-monitor sized speaker based on GR-T1 soft dome tweeter and M-130 mid/bass unit with a series crossover. Available in a shielded version for use near CRTs.
The Audax Designer Series Home Theater kit uses the Audax Micro Series™ tweeter and HD-A polymer chassis drivers in a complete 5.1 system designed by Dr. Joseph D'Appolito. System is comprised of MTM front left and right main speakers, TM mini monitor surround speakers, a three way center with TM surrounded by two mid-bass units and a 12" subwoofer. Though many ppl choose not to build the subwoofer included with the kit (substituting instead an Adire Shiva or Dayton Titanic subwoofer), the other speakers have been highly praised.
OnlineConversion.com can be used to convert from almost anything to anything else.
The Jasper Circle jig is a great tool used with your plunge router and a 1/4" spiral bit to cut circles from 2 1/4" to 18 3/16" in 1/16" increments. Great for flush mounting speaker drivers. Frequently on sale at Parts Express.
The Eric Wallin/Jason Neal mic preamp is a terrific little DIY Speaker Testing Microphone Preamp. Eric developed the mic preamp around a Panasonic electret mic element and parts readily available at your local Radio Shack. Jason designed a PC board and parts kit, including upgraded opamps. Note: Jason seems to have disappeared, however Eric has info about the improved mic preamp at his web site. See http://mysite.verizon.net/tammie_eric/audio/preamp2/preamp2.html
Panasonic makes electret microphone capsules used in the above projects and other mic designs found on the net. Calibrated mics increase the accuracy of your measurements. Calibrated Panasonic mic capsules are available from Kim Girardin at Wadenhome Sound
The Active Crossover Kit by John Pohman is an inexpensive DIY kit that can be used to build either 4th order LR or 1st order Butterworth filters with a wide range of crossover frequencies.
The 24 dB/Octave 2/3-Way Linkwitz-Riley Electronic Crossover by Rod Elliot of Elliot Sound Products is an extremely flexible active crossover that can be set at any desired frequency. Printed circuit boards are available for the croosover. There are several other very good projects as well as informative aritcles available at Rod's site. Definitely worth checking out.