||We say "Lowther for Life". We mean that once Lowther Loudspeakers
are used, audio and hi-fi perfectionists stay with them for life. The sound
reproduction is the most life-like available, and gives the feeling of being in
the concert hall.
||Pale yellow paper cone, along with huge magnet
structures and that black "nose" of a phase plug
sticking out from the center of the dual wound balanced voice
coil. For decades these drivers have attracted thousands of
audio enthusiasts all over the world.
What makes Lowther driver so unique?
1) Twin Paper Cone
The basic Lowther design features a 20cm twin
cone driver made of long fiber paper. This very light hand made paper cone with an exceptionally strong
magnet and a very light cone enables the driver to reproduce the full spectrum
of audible sound and beyond.
2) Strong Magnet
In order to produce strong magnetic fields
for their drivers Lowther uses very advanced techniques in magnet and pole piece
construction. Magnet type includes Feroba, Alcomax, 'Hi-Ferric'™ Rare Earth,
and 'Hi-Ferric'™ Rare Earth Neodymium. For example their strongest magnetic
assembly, that of the Lowther PM4A, has an enormous energy density and produces a gap
flux of 2.4 Tesla (24000 Gauss). The PM4A is weighted 10Kg each!
3) Full Range
In theory, no crossover provide flat
amplitude response and flat phase response at the same time. When you get good
amplitude, you must trade off in phase response, result in poor imaging.
Lowther is truly a single, full range
typical frequency range is 30 Hz to 20 KHz. (22.5 KHz max). No more
crossovers are needed. Say goodbye to phase errors, the main cause of
poor imaging. Lowther drivers are very revealing, very coherent, and very
musical. Lowther puts you much closer to real music! Only one Lowther driver is
used per cabinet. Imaging is wonderful.
4) Highest Sensitivity
Lowther are extremely efficient. The Lowther EX4
gives you 99.5db @1m/1kHz/1watt (may extend up to 107db depends on cabinet
design). A 3 watt 2A3 tube is enough to drive the speakers beautifully. Due to its high
sensitivity characteristic nature, you can hear lots more details that are
missing from other speakers. There is a recent trend in audiophiles to go with
the combination of high sensitivity speakers and low power amplifiers.
5) Horn Loaded Design
Lowther drivers are high pressure low excursion device, hence
they are not suited for typical bass reflex boxes. In order to produce the
lowest frequencies, they need to be attached to a horn. They are much like
a compression driver in this respect. A rear horn allows the driver to
transform its small excursions into large volumes of moved air thereby
increasing bass efficiency to match high-frequency efficiency. Horn bass
has a purity of tone that is unrivaled. There's no boom, and no such thing
as 'one note' bass. The bass from a Lowther horn has an articulation
unlike any other speaker. see complete
speaker systems The horn path is precisely calculated according
to law of physics. The longer the path, the deeper the bass. see
the biggest horn in the world
of horn loaded design.
here to see recommended reading on horn loaded speakers.