The following topics are based on my personal experience with audio, various equipment and music in both analog and digital formats for more than 30 years. There will also be space for links to interesting articles published in hifi magazines and/or other sources. Planned is also to put some white papers / project information on tube amplifiers and loudspeakers, written by two friends and highly qualified Austrian engineers  - Josef Aigner & David Haigner - on this site in the near future. Click here to see some of the gear they have built.   Latest: November 2012 - Lenco Magic My long overdue article about my Lenco L75 project...   April 2012 - Gammas in Orbit My friend Alexander shares his audio adventures with us...   January 2012 - The Haigner Gamma Horn Loudspeakers My personal listening impressions of a true masterpiece...   December 2011 - Does Digital Finally Rock? Read about my comparison of three musical DACs, a fun project ...   October 2011 - The Magic of Having Audio Gear Pimped A story about Martin Küng, the Austrian audio tuning profi   July 2011 - Auditioning the Haigner Designs Tau It's more than time to introduce a true artist in loudspeaker design...   August 2010 -  The Vienna Vibes Audio Fest Finally, here is the full report about our first DIY audio festival of early July in beautiful Vienna...   May 2010 -  A Musical Weekend in Munich A wonderful trip to Munich with many hours of musical pleasure and a surprise at the High End. An important read...   October 2009 - Update on Joe's home brew audio dream system / Improvements since May 2007 Joe describes the upgrades he incorporated into his impressive system within the last two years...   September 2009 - Listening to Tube Amp Magic from Thomas Mayer, Germany You are interested in excellent and affordable tube amps and love to assemble them yourself. Here is something for you from one of the leading DIY tube amp aficionados...   August 2009 - Report about the Berlin 'School of Sound' Audio Fest, May 2009 A great festival, so please read on ...   January 2009 - Report about the 2nd "Schall & Rauch" - Festival, October 2008 in Munich A little bit delayed, but worth a read ... March / April 2008 - Building TentLabs' Musical DIY CD Player Here is the long promised report about my experience with this highly praised DIY CD player, please read on ...   November 2007 - Report about the 1st "Schall & Rauch" - Festival in Munich A must read for every tube audio lover...   May 2007 - Follow up on Joe's Dream Loudspeaker System - Improvements since January 2006 Joe was so kind to write a bit about the improvements he made to his super speaker system in the meantime May 07: After some listening possibilities, I can wholeheartedly agree that the audible improvements achieved in comparison with the start version of Joe's project a bit over a year ago are quite dramatic! Another great speaker system. Enjoy the report :-)   March 2007 - Haigner Alpha and Beta Horn Systems Another must read for every horn speaker aficionado ;-) April 07 / Sept. 07: More listening impressions on the incredible Alpha Horns added to this article   March 2007 - The Making of GOTO Horn Speakers a la Haigner      A must read for every horn speaker aficionado ;-) If you want to read more about these outstanding speakers, the German audio magazine 'image hifi' has run an enthusiastic report by Cai Brockmann in their Feb. 2007 issue (No. 74, page 130, x-kursion) under the title "Fairway To Heaven; Die Anlage von Herrn W. aus S." (German only!) (As soon as I'll have the chance to listen to these Haigner creations, I will report in detail about their musical qualities on this site. So, watch out!)          December 2006 - The Making of the First Triode?       ETF 2006, this year in the Netherlands - at the Beukenhof in               Biezenmortel - was a blast as all ETF's so far. But our Dutch hosts (Emile Sprenger and Guido Tent) had a special surprise for us. A video called "The Making of the First Triode". This video is honoring the centennial of the Audion, Le De Forest's invention of the first triode. The cool thing about the video: It shows the making of the ETF06 Triode, a copy of De Forest's Audion.        Enjoy this video, which our Dutch friends uploaded to www.youtube.com          November 2006 - A Lead Free World? (A link to Geoff Husband's interview with Graham Slee for TNT-Audio, July 2006; a must read about ROHS - the new EU directive - and it's effect on our beloved audio hobby)   June 2006 -Euphonic Distortion: Naughty but Nice (A link to Keith Howard's article for Stereophile, April 2006) This is an excellent article, my only reservation: Mr Howard's distortion test method didn't take into account distortion products decreasing as the acoustic level decreases, a phenomenon which single-ended class A amplification's distortion characteristics display (see Single-Ended Class A by Nelson Pass). August 2007: Mr. Howard and I have been in email contact regarding my reservation above, because apparently his distortion test method takes into account 'distortion products decreasing as the acoustic level decreases'. Those interested can visit his excellent website and download his AddDistortion utility used for the tests and experiment for themselves. (I hope to download the software soon and learn about the effects for myself.)     May 2006 - Lynn Olson on Different Amp Designs (A link to his presentation for ETF 2004 - highly informative)        Jan. 2006 - Joe's Loudspeaker Dream Comes True          Nov. 2005 - The Beauty of Single-Ended 2A3 Amps   Planned topics to follow: Building DIY Hifi-Supply's WE 91 300B SE Monoblock Power Amps Step-Up Transformer vs Phono Pre Pre (or is there a way to listen to our beloved records without expensive low output MCs and step-up devices?) Graham Slee's phenomenal Revelation phono stage   ©The Audio Eagle 2005-2011• All Rights Reserved • Disclaimer