Onkyo TX-8140 2 Channel Network Stereo Receiver 80 W/Ch (8 ohms, 20 Hz20 kHz, 0.1% THD, 2 channels Driven, FTC) with Hi-Current amp design; Built-in Bluetooth & Wi-Fi, with built-in Pandora, Spotify, Sirius XM, tune in, Slacker; Faceplate preset buttons store four FM/AM and internet radio stations- just push one to power up the receiver and Start listening right away; 384 kHz/32-bit Hi-Grade DAC for realistic and clean Audio. Frequency Response : 10 Hz-100 kHz (plus 1 dB, minus 3 dB) (Direct Mode) Engineered for Hi-Res Audio playback; plays compressed, lossless, and Hi-Res Audio via local network (MP3, WMA, WMA lossless, FLAC, WAV, ogg Vorbis, AAC, Apple lossless, DSD 5.6 MHz, and LPCM).