Subwoofer – QUAD L2 Series User Manual

Page 13

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L

2

-Subwoofer

Technology

The

A revolutionary drive unit material
is only the start of the technological
innovations that make this new Quad
subwoofer a fine addition to any
surround or stereo system.

The ‘tri-lam’ cone is a composite
construction

comprising

of

a

hydraulically moulded and thermoset
lamination of three materials. The inner
layer is bi-directional weave carbon
fibre, the two outer layers are bi-
directional weave glass fibre. The outer
rim of the cone incorporates
rim-edge stiffening within the design. The
resulting cone is extremely rigid and
lightweight, ensuring very low energy
losses, even at extremes of volume,
and without the delays associated with
high-mass paper pulp or plastic cones
commonly used in subwoofer drivers.

Further innovations include a powerful
300WRMS amplifier module coupled
with a brand new filter stage. A
microprocessor controlled filter
section has been developed adjustable
between 35 and 85Hz in 10Hz steps
– each having a discrete path for the
cleanest signal possible.

A full function remote control allows
the user to calibrate the subwoofer
(crossover, volume and phase) from
the listening position and store up to
four settings in the memory, which can
be recalled at the touch of a button.
Finished in the same choice of high
quality piano lacquered veneers as
the existing L-series models, the L

2

-

subwoofer is as attractive a piece of
furniture as it is accomplished as a
reference subwoofer.

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