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Julian Evetts

Julian Evetts

I think the original idea for the ‘wall amp’ was to present the A-75 as an ‘instrument,’ something that looked… More...
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JH You

JH You

I have built your ZEN using IRFP150 and BRIDE OF ZEN (BOZ) with IRF530. ZEN has the negative feedback line… More...

Amp Camp Project — Pass DIY / 2016

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The Kleinhorn Part 2 — Nelson Pass / 2004

If you saw part one of this project (AudioXpress, January 2005), you know that the KleinHorn is a big toy, and you can imagine that it’s hard to resist playing with it further. When Chris and Matt built the horns last year, they made different driver chambers and replaceable front baffles, so that it would be easy to try different loudspeaker drivers. In this part we will first briefly explore some of the effects experienced with different amounts of absorbent stuffing in the horn as presented in Part 1. Then I will describe the effort to add scary deep bottom… More...

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