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Another advantage of the 7-foot line source is that the vertical spectral
content of music is virtually the same throughout the length of the line
source. Hence, the seating height does not matter with this speaker;
unlike point source speakers where it is important for the ears to be
aligned with the tweeter.
A third important advantage is that it attenuates at –3dB with a
doubling of distance from the loudspeaker, whereas a point source
attenuates at –6dB with a doubling of distance.
For example, with a sensitivity of 91dB/watt at 1m, the G1.2 is about
average for large loudspeakers. At 2m, the G1.2 line source can
deliver 89dB/watt, at 4m 86dB/watt, and at 8m 83dB/watt. For the
equivalent point source loudspeaker, it will be 85dB/watt at 2m,
79dB/watt at 4m, and 73dB/watt at 8m.
Hence, for a minimum listening distance of 4m (about 12 ft) the line
source will appear to be more than twice as loud as a point source
loudspeaker. This is the great advantage that a line source
loudspeaker will have over a point source loudspeaker in a large
room. The larger the distance, the greater the advantage the line
source loudspeaker has over the point source loudspeaker.
The fourth great advantage of the line source over the point source is
that the change in loudness is much less over a small change in
distance. Hence, it results in a much larger sweet spot as small side to
side changes in seating position result in less of a sonic change than
with the point source loudspeaker.
The G1.2 is also a dipole radiator. The midrange and tweeter drivers
are mounted on a rigid Corian™ baffle with no enclosure. This has
two advantages: firstly, it eliminates any enclosure or boxy colorations
caused by cabinet vibrations or resonance.
Secondly, the dipole creates a cardioid pattern (like a figure-eight),
which has its maximum output at the listening position and behind the
speaker itself, and minimum output to the sides in the plane of the
loudspeakers. This very effectively eliminates the bounce from the
sidewalls. Hence, in conjunction with the line source, the G1.2 has no
first reflection from the floor, ceiling or sidewalls. The net result is that
there are far fewer detail-robbing room reflections from the room than
other types of loudspeakers. With fewer spurious reflections to
confuse your hearing, the program source emerges more clearly.
Imaging is deeper, yet more focused.
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Audio Specifications
Weight and Dimensions
