Proel S12A

Like the other subs in the S series, ... This hybrid bandpass subwoofer generates a continuous output of 600W at a maximum SPL of 127dB, covering a frequency range of 43-160Hz .... The Proel S12A is one of the mid-sized members of the S series - a new range of compact and powerful subwoofers that have been developed to complement the brand's wideband speakers.

The lightweight and yet robust plywood construction comes with a particularly durable polyurethane finish. The subwoofer is fitted with Proel's new Class D amplifier module with Switch Mode Power Supply, and is capable of generating enormous power in an enclosure specifically designed to be compact and easy to transport.

Phase reversal can be useful (or even necessary) when the acoustic signals generated by the woofer need to be adjusted to suit a specific room and speaker configuration, eliminating the need to change the position of the speakers entirely, which is virtually impossible in day-to-day operation.

Fortunately, phase switching is an integral part of the design of the Proel S12A active HBP subwoofer, as is the case for all models in the series. The Proel S12A is equipped with a high-excursion woofer housed in a hybrid bandpass (HBP) configuration: This innovative design ensures greater efficiency compared to directly radiating subwoofers, as well as improving the acoustic coupling of the tuning channels with the air outside the unit.