The FF-V2 5070, (formerly FF-V2.4) loudspeaker pairs use shaded line array technology with precision ribbon high frequency drivers to extend sound projection in longer rooms. Their frequency response (120 Hz – 20kHZ 3 dB) has been optimized for speech intelligibility. Flex Focus loudspeakers can be used in combination with an Innovox Micro-Sub Series sub-woofer to extend low frequency response to support full-range music program.