Low-Frequency Reproducer Woofer for two-way speech & music systems High excursion for low-frequency clarity & punch TIR & FDD reduce distortion keep voice coil cool & smooth frequency Resp, 400 watts long-term power capacity 101-dB sensitivity Thermally efficient magnet assembly for high reliability PROTEF coating helps protect woofer from excessive power peaks Usable Axial Frequency Resp, in Typical Enclosure (4, 0 ft1 tuned to 40 Hz) Swept One-Third-octave Pink Noise 4 Volts @ 10 Feet Anechoic Environment Normalized for 1 Watt/1 Meter (see Figure 1): 45-3 000 Hz Power Handling (see Power-Handling Test section) Per ANSI/EIA RS-426-A 1980: 400 watts; Per AES2-1984/ANSI S4, 26-1984; 50-500 Hz: 400 watts; 100-1 000 Hz: 500 watts Sensitivity (SPL @ 1 m 1 watt input power nominal impedance) 200- to 3 000-Hz Average: 101 dB 100- to 800-Hz Average: 98 dB SKU: TBAL2346