Next Level Acoustics is already shipping its new in-wall subwoofer for 2×4 construction called the CI-IW10RS-PRO. This subwoofer is able to deliver “deep, rich, impactful bass to standard 2×4 construction applications (e.g., living rooms, home theaters).” Next Level Acoustics says the CI-IW10RS-PRO hits down to 18Hz with max SPL of 118dB @ 1m — and […]