WA-1822 / WA-1822C The portable meeting amplifier shall function as a fully self-contained PA system with wired or wireless microphone options. The unit shall be simple to setup and operate. Wireless transmitter options shall include handheld, lapel or headset. The unit shall accept up to two wireless UHF diversity, 16 channel frequency-agile receiver modules. The enclosure shall include a retractable handle with 7.87” (20 cm) full range speaker and piezo tweeter coupled to a CD horn. Frequency response shall be 70 - 10k Hz (+/- 3 dB). Distortion shall be less than 10% (rated output) and S/N ratio shall be better than 70 dB (rated output). Features shall include a wired microphone input (-48 dBV, 600 ohms, unbalanced, 1/4”phone jack), auxiliary input (-20 dBV,10k ohms, unbalanced, RCA pin jack x 2), line output for external PA system connection (-10 dBV,1k ohms, 1/4”phone jack) and external speaker output (8 to 16 ohm, minimum 20 W). An optional version with auto-reverse cassette player/recorder (WA- 1822C) shall be available. The unit power source shall be both 120 VAC 50/60 Hz or batteries (8 "D" Cells). Power consumption shall be AC: 46 W (rated output). Rated output shall be AC: 20 W (Max.40 W with EXT SP.) or DC: 8 W. Battery life shall be a minimum of six hours. Operation temperature shall be AC: 14º F to 122º F (-10º C to +50º C) or DC: 32º F to 104º F (0º C to +40º C). The finish shall be ABS resin with light gray color. Dimensions (W x H x D) shall be 11.92" x 18.4" x 8" (298 x 460 x 200 mm) and weight shall be WA-1822: 13.3 lbs. (6 kg); WA-1822C: 14.8 lbs.(6.7 kg). The modular wireless meeting amplifier shall be TOA model WA-1822. The modular wireless meeting amplifier w/cassette shall be TOA model WA-1822C.