|
|
|
|
|
|
|
AMERICAN POWER AND LIGHT, INC., has been building the ORIGINAL LINEAR
TRANSMISSION LINE LOUDSPEAKER, ( the LT2), since 1988,
with many
revisions and improvements since the beginning. The original intention,
and design brief of the loudspeaker has not changed at all however: the
system is still primarily intended for the user who wants a superlative,
pure, two channel MUSIC system first, to which may be added additional
channels, and a subwoofer, with the original musical heart remaining.
The LT 2 was specifically designed around high quality transistor
British Integrated amplifiers, and lower powered vacuum tube Integrated
amplifiers, although it is fully useable with the highest quality units
available, tube or transistor.
The LT 2 is a room boundary pressure zone transducer, it is intended for
mounting on a room boundary wall. From this position it radiates into a
half space from a co-planar wall, for a much reduced room reflection
problem. Since the LT 2 is very thin, at 3 inches, it is essentially
co-incident with the wall itself, and has no reflected back wave as
would any transducer mounted away from the room perimeter. Thus, the LT
2 is radiating into a much simplified listening room, one whole
Euclidean class of additive room reflections, present with conventional
transducers is missing, and, however interesting the playback room
acoustic may be, it is most emphatically NOT the acoustic of the
original recording. For a sense of pure, holographic space, the
elimination , or reduction, of the playback room acoustic is essential,
so that the recording venue acoustic may shine through without spurious
reflections from the 'second venue' playback room.
The LT 2 is 25 inches high, 14 inches wide, three inches thick, and
weighs 28 pounds. It uses cross linked foam carbon fibre piston bass and
midrange drivers, with a poly re-inforced linear, line source tweeter
array. Dispersion, from a horizontal axis perspective is more than 160
degrees, leading one magazine reviewer, Dayna B, to comment, that it
had the widest sweet spot of any speaker she had ever heard, (at about 5
feet wide, in a normal room, 12 to 16 feet distant from the wall mounted
array).
The LT 2 is available with a wide array of custom outer decorative
frames, from Medieval Monastery Oak, to Renaissance Florentine
Intaglio Carvings, or modern multicolour gilt finishes. Frames are instantly
changeable, as are the custom grille cloths. Custom silk fabrics are
available, from Mendocino Art Center original silk screens, to Lyon
boucle weaves, and pure Chinese Shantung silks. All of these fabrics
weaves and textures have been fully TESTED and documented for sound
transmission and attenuation on a 40 thousand dollar Hewlitt Packard
SPECTRUM ANALYZER. A full catalogue of classic silks and other fabrics
is available from AMERICAN POWER AND LIGHT, INC., which we will soon
post here on the World Wide Web as well.
The LT 2 is intended to be not only a superlative musical instrument,
but also a superlatively beautiful musical instrument as well.
|
