User Manual

Sub20 Sub24 Sub2100
Sub20 / Sub24
The Sub20 and Sub24 are very powerful subwoofers designed for
medium sized or larger control rooms in which powerful and yet
accurate extra deep bass monitoring is required.
The Sub20 is equipped with two long throw 10” drivers which are
meant to reproduce LFE or other low frequency signals down to
25Hz. The Sub24, housing two long throw 12” drivers, extends down
to 22Hz.
The power of two subwoofers
The Sub20 and Sub24 each have two drivers, which are mounted in
chambers at opposite sides of the cabinet. Due to this alignment, the
forces applied to the cabinet oppose each other and consequently
compensate themselves, so that the cabinet stays much quieter
than with conventional arrays. Distortion is drastically reduced in
this manner, resulting in improved signal clarity, especially at higher
levels.
There are two down firing bass reflex tubes that, because of their size
and construction, successfully avoid ventilation noise.
PWM amplifers
The amplifier section has two units, each capable of delivering 200W
continuous or 300W peak power to their corresponding drive units.
Both power supply and amplifier section use PWM technology (Pulse
Width Modulation, see p. 38), meaning very high efficiency (≥90%)
and cool operation in even the most critical phases of operation.
An additional output allows daisy-chaining as many Sub20s /
Sub24s as desired.
Sub2100 - The ultimate subwoofer
For the special requirements of large control rooms and studios,
ADAM has developed a unique subwoofer. The Sub2100 combines
an enormous 21.5” woofer and an amplifier capable of 1000W
continuous power housed in a bass-reflex enclosure tuned for
reproducing frequencies down to 18Hz. The massive power and the
extremely high efficiency (99dB/W/m) enable this system to produce
linear SPL peaks of ≥128dB without any significant compression.
The biggest voice coil in the world
Essential to the volume of this woofer is the gigantic voice coil, with its
6” (the largest worldwide). So, the Sub2100 reaches high SPL in the
lowest frequencies perceivable by the human ear. This means nothing
less but a new subwoofer benchmark.
Challenged by nature’s thunder only…
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