ION SERIES LOUDSPEAKERS
The Ion Series loudspeakers were
designed with one all-encompassing goal: to bring true and accurate musical
reproduction to music lovers at reasonable price points. However, not everyone
perceives perfection in the same way. This series of loudspeakers
was designed to be of a fairly high efficiency, but not overly high.
This gives the listener the flexibility to use Ion loudspeakers with either
tube or solid state amplifiers (below 100 watts) to suit their own personal
preference. The Ion Series offers the benefits of horn
designs at an affordable price.
Point Source
The ideal loudspeaker acts as a
single point source for accurate musical reproduction. In a live
performance, the music that approaches us comes in the form of a huge soundwave
originating from a single source. This is a very demanding task for
a multi-driver unit to do because the music is originating from more than
one driver, and all the drivers have different transient response characteristics.
The closest one can come to reproducing the sound dispersion characteristics
of a live performance is by using a single full-range driver. Drivers
that are capable of reproducing the full frequency spectrum tend to be
very costly. Also, their enclosures tend to be very large.
Ambience
The Ion Series of loudspeakers use
a full range driver and, when required, a tweeter added for ambience.
The only form of bypass that is used is a single high quality capacitor
on the tweeter. These loudspeakers are effectively single drive units
and this allows for accurate, coherent music reproduction. As in
our flagship Stamm Series,
the full-range drivers are made of paper. The drivers are treated
to withstand harsh tropical conditions.
Home Theater
To extend the pleasure of high quality
and accurate musical reproduction to more than just two-channel audio use,
the Ion Series loudspeakers are internally shielded to allow them to be
used in home theater systems. There are several different permutations
possible with the Loth-X Ion Series, and two of the best are as follows:
The Ion Series available finishes
are rosewood, cherry, or black ash laminate, while home theater systems
are finished in black ash laminate.
Loth-X Ion 1

The basic requirements of an entry-level
bookshelf loudspeaker are that it has to be compact and not overly costly.
Our solution to these challenges is the Ion 1. The Ion 1 is a bass reflex
two driver bookshelf speaker system.
The cut-off point for the main driver
is set such that most of the music spectrum is created by the main driver
and the sole function of the tweeter is to add ambience
to the music. The only crossover system employed is a single high quality
capacitor on the tweeter. This arrangement of drivers and crossover point
is the closest we can get to mimicking the sound dispersion characteristics
of a single full range driver, without the high cost.
Ion 1 Specifications
| Frequency Response |
55-20,000 Hz |
| Impedance |
8 Ohms |
| Efficiency |
94dB / 2.83 V/m |
| Dimensions |
8" x 11.5" x 18" (WxDxH) |
| Weight |
35 lbs. each |
| Warranty |
2 years |
Loth-X Ion 2
The Ion 2 is the elder sibling
of the Ion 1. The Ion 2 is a transmission line two
driver floor-standing loudspeaker system.
Similar to the Ion 1, the cut-off
point for the main driver is set such that most of the music spectrum is
created by the main driver and the sole function of the tweeter is to add
ambience to the music. The only crossover system
employed is a single hgh quality capacitor on the tweeter. The arrangement
of drivers and crossover point is the closest we can get to mimicking the
sound disperson characteristics of a single full range driver, without
the high cost.
Ion 2 Specifications
| Frequency Response |
40-20,000 Hz |
| Impedance |
8 Ohms |
| Efficiency |
94dB / 2.83 V/m |
| Dimensions |
8.5" x 10" x 35.5" (WxDxH) |
| Weight |
41 lbs. each |
| Warranty |
2 years |
Loth-X Ion 3

The Ion 3 is a combination transmission
line / back
loaded horn bookshelf loudspeaker using our single six inch tri-axial
full range driver. It is the first full-range single driver loudspeaker
unit in the Loth-X product range and the first stage transition to the
Stamm Series.
The high quality tri-axial driver
allows us to depart from traditional multi-driver designs and move towards
true single driver point source loudspeaker
designs. Absolutely no form of crossover is used in the Ion 3. A phase
plug is used in conjunction with the smallest cone on the driver to enhance
the dispersion of the higher frequencies so as to create an open and wide
soundstage.
Ion 3 Specifications
| Frequency Response |
55-19,000 Hz |
| Impedance |
8 Ohms |
| Efficiency |
96dB / 2.83 V/m |
| Dimensions |
9.5" x 12" x 23.5" (WxDxH) |
| Weight |
35 lbs. each |
| Warranty |
2 years |
Loth-X Ion 4

The Ion 4 is a true back loaded
horn floor-standing loudspeaker using our single six inch tri-axial full
range driver. It is the second full range single driver loudspeaker unit
in the Loth-X product range and the bridging design to the Stamm
Series. The Ion 4 allows the listener to enjoy the pure tonal characteristics
of a true back loaded horn speaker in a small room.
The high quality tri-axial driver
allows us to depart from traditional multi-driver designs and move towards
true single-driver point source loudspeaker
designs. Absolutely no form of crossover is used in the Ion 4. A phase
plug is used in conjunction with the smallest cone on the driver to enhance
the dispersion of the higher frequencies so as to create an open and wide
soundstage.
Ion 4 Specifications
| Frequency Response |
40-19,000 Hz |
| Impedance |
8 Ohms |
| Efficiency |
96 dB / 2.83 V/m |
| Dimensions |
14" x 14" x 45" (WxDxH) |
| Weight |
85 lbs. each |
| Warranty |
2 years |
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