Projects for building HiFi loudspeakers and general articles on commercial speakers tweaking and upgrading.

Section devoted to DIY and tweaking. Free online projects of amplifiers, loudspeakers, cables, accessories plus articles on easy upgrades for commercial components. All the designs are FREE and NOT ...

Section devoted to listening tests: amplifiers, preamps, power amps, compact disc players, separate DACs, analogue gear, cables and various accessories, loudspeakers.

TNT-Audio - weekly updated online HiFi magazine, free and truly independent (no advertising). TNT-Audio features listening tests, DIY tips and free projects, interviews, reportages, factory tours, a ...

Part I of this two-part series was an overview of the Edison cylinder player in general. Now it's time to look at some specifics. If you're familiar with Leica cameras, you probably have seen that ...

Miracles do occasionally happen. Consider cylinder records and phonographs. Both disappeared from the market in 1929, by which point the players were yesterday's technology and much of the music ...

It may sound odd to review - in 2010 - a test CD which dates back to 1992 but there are several reasons why it might make sense. First of all, basic and useful test signals aren't changed much during ...

Talent has a way of running in families; for example, when we say "Bach," we usually mean Johann Sebastian, but at one time, in the region that one day would become what we know as Germany, so many ...

What's this then, since when is TNT doing tuners? It isn't actually, it's just me being controversial again. Actually, I must confess - I'm a radio freak. When I was in the first grade, way back in ...

MIT Terminator.5 - This is a cable for which the manufacturer claims two essential properties. One is a much more even top to bottom energy transfer (i.e. greater linearity), and the other is relative ...

I've said it before, but boy are we 300b valve addicts lucky. 30 years ago you'd be one of an obsessive minority hunting down NOS valves, and paying exorbitant amounts for ancient Western Electric ...

The above schematic comprises almost anything you can put around the ubiquitous LM317 positive 3-pin regulator (LM337 for negative voltages, 117 and 137 military versions). The basic circuit dispenses ...