S3-W6 FS = 58 Hz Efficiency (SPL) = 88 dB Qts = 0,54 Vas = 11,92 L Impedance = 4 Ohm Frequency response = 40 Hz – 5 kHz Power recommendation = 40-180W Power RMS = 100W Outer diameter: 165 mm Mounting diameter: 145 mm Mounting depth: 67 mm S3-T27 FS = 850 Hz Efficiency (SPL) = 91 dB Qts = n/a Vas = n/a Impedance = 4 Ohm Frequency response = 2,5 – 25 kHz Power recommendation = 20-120W Power RMS = 80W Outer diameter: 55 mm Mounting diameter: 48 mm Mounting depth: 26 mm.