FX115 Professional passive 2-way Crossover of high-quality construction and materials. Power 350Watt RMS / 700Watt Max at 4 or 8Ω. Equipped with a transistor for horn protection from overdrive. Cut-off frequency 2.5 kHz – 12dB/Oct. Suitable for driving a Woofer and a Tweeter/Horn. Ideal for internal installation in the speaker and for separating frequencies from the amplifier to the woofer and the horn.