Procella P18 produces awesome low-frequencies

The P18 is the only subwoofer for those seeking the aural immersion of the reference cinema and live concert experience. (READ MORE)

Procella Audio V Steinway Lyngdorf - Gecko Home Cinema

Subwoofer / Low Frequency Optimization, Page 4

Procella audio DA08-DSP Power Amplifier User Manual

Nyheter - Sida 10 av 17 - NSHT

The Official Procella Audio Speakers Owners thread, Page 7

Procella P18 produces awesome low-frequencies

Procella Audio V18 Dual 18 Inch Subwoofer Preview

Nyheter - Sida 10 av 17 - NSHT

JBL 2269H - ported or passive? Need a little help

Procella Audio Launches The V18 Bass Engine: New Flagship Dual 18 Inch Subwoofer - ISP Audio Light Magazine

Procella P18 produces awesome low-frequencies

Procella V18 subwoofer low frequency performance to 11Hz.

Procella audio DA08-DSP Power Amplifier User Manual