Since SUB 550 reaches very low, it features a Boundary Gain Compensation
switch, which further helps to keep a flat frequency response, as BGC
compensates for the room influence at low frequencies.
The level control is placed on the front of the subwoofer, elegantly integrated
in the design, with a soft blue light indicating the volume setting.

SUB 650

The SUB 650 incorporates a 12” subwoofer driver and an amplifier capable of
producing 650 Watts of peak power. This subwoofer works in a closed cabinet,
and even if there is no bass reflex port to contribute to a high SPL, it delivers
110 dB sound pressure level.
The advantages of a closed cabinet is absolutely absence of port noise and an
even better timing resulting in a musical fidelity that is even more accurate and
exact than conventional ported systems.
The SUB 650 is
intended for
high
performance
bookshelf and
floorstanding
speaker systems.
The SUB 650 is
capable of
reaching down
to 24 Hz which is
why we have here incorporated the continuously variable Boundary Gain
Compensation for optimum integration into the home environment.
The level control is placed on the front of the subwoofer, elegantly integrated
in the design, with a soft blue light indicating the volume setting.