Welcome to ESP, the home of DIY audio articles, projects and shortform kits. Audio is a wonderful hobby, and with DIY there is a huge scope to get the very best performance for a lot less money than otherwise. DIY audio is fun and educational, and by building your own audio equipment, you get to learn electronics as well as build equipment that would cost a great deal more in the shops. ESP is committed to providing high quality projects that are known to work, printed circuit boards (PCBs) for the most popular projects, and to assist you if necessary to complete or debug your project. There is a very wide range of power amplifiers, preamps, guitar/ bass amplifiers, studio equipment, effects, and other projects to build, including loudspeakers, subwoofers, and many others. Purchase PCBs to gain access to even more information.

IMPORTANT:  Please see the disclaimer for information about these pages.

	Feature Articles
	Lamps	The worldwide 'incandescent lamp ban' debate - exit CFLs, enter LEDs !	23Sep09
	External PSUs	Hot on the heels of the CFL fiasco, now the leglislators want to ban external transformer supplies	05 May
	Hall of Shame	People regularly steal material from my site - this is what will happen ...	07 Oct
	Heatsink	ESP now has a custom heatsink extrusion available for purchase.
	Navigation		Update
	Site Map	Complete index of all available pages on this site
	Search	Search the ESP pages to find what you are looking for
	Forum	Discuss ESP projects and articles with other readers on the ESP Forum.
	Products & Services
	Price List	Complete Pricelist for all Products	19Jul09
	Purchase	Project Printed Circuit Boards and other ESP merchandise	24 Jan
	Articles	Amplifier and power supply design, loudspeakers, basic theory, etc.	17Sep09
	Projects	Complete designs and ideas, with schematics and construction details	15Oct09
	Valves	Valve (vacuum tube) amplifiers, information and analysis (NEW SECTION)	06Nov09
	App. Notes	Application notes, covering a wide range of different applications, not necessarily audio related	23Jul09
	Education	Customised projects for schools, technical colleges and universities	2003
	Consulting	ESP also offers custom design and consulting services	2002
	Privacy, Ethics & Security
	Privacy	ESP's privacy and ethics policy	2002
	Disclaimer	The fine print. Please make sure that you read it thoroughly.	2002
	Spam/Scams/Security	Some things for you to consider, regarding the threats posed by the Internet	28Jul09
	General Information
	Contribute	If you have an article or project you would like published, let me know	Jun 05
	Downloads	Various useful programs and spreadsheets to make your life easier	Dec 04
	FAQs	Frequently Asked Questions. Check here first	07 Oct
	Links	to my favourite sites (plus additional and miscellaneous links)	Apr 05
	Clocks	There is great synergy between my life-long career and my hobby - see why here.	27Sep09
	Useful & Miscellanous	Various things that don't seem to have a real home anywhere else	03 Jun
	Why DIY?	There are many reasons that people DIY, and there are also many benefits.	04 May
	Contact	Send e-mail to ESP

projects and articles are free for personal use only.  Any commercial use is strictly prohibited by international copyright laws without the express written consent of Rod Elliott.  Images and text are copyright © 1999-2009 Rod Elliott, unless otherwise stated.  Web and all graphics design by Rod Elliott except for specific (non ESP) logos where used, whose copyright is the property of the respective owner(s). Links - Anyone wishing to link to my pages may do so freely, but please make the main index page (sound.au.com) the sole link.  Do not link to individual pages or image files without asking first. This ensures that visitors get to see all that the site has to offer, and not just a part of it.   Anyone wishing to do so may use this image for linking to the ESP site.

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