As Presented, this Ultra-LD 100W
per channel stereo amp-lifier can be the basis of a very fine "no-frills"
stereo sound system.
You can plug in a CD player, tuner or tape deck and the
selected program source is switched straight through to the volume control and
then to the power amplifiers. This is equivalent to the "CD-Direct" mode on some
The Ultra-LD stereo amplifier takes the purist approach – no
preamplifiers, no tone controls, no balance control or anything else to affect
the signal quality before it goes to the power amplifiers. The result is the
cleanest possible sound quality, rivalling that of the very best commercial
amplifiers, regardless of price.
In the "Publisher’s Letter" for the March 2000 issue we
indicated our intention of building the new stereo amplifier into a computer
case. In fact, we mentioned that we intended using a "clam-shell" desk-top
Well, when we came to do the job we decided that the selected
case looked a bit tatty and so we purchased a brand new ATX tower case for the
princely sum of $66. This actually came with a power supply which is not needed
for this project but which will be pressed into service elsewhere.