Yamaha RX-V577 - 7.2-Channel Home Theater Bluetooth USB Wifi & Apple AirPlay Receiver Bundle Combo With 4x Dual LU43PB Indoor/Outdoor 100W 3-Way 4" Black Box Speakers + Enrock 50 Feet 16g Speaker Wire

Stereo Features:
7-channel amplifier.
80 watts per channel into 8 ohms.
Dolby® and DTS® surround sound decoding.
AM/FM radio tuner.
YPAO (Yamaha Parametric Room Acoustic Optimizer).
Parameters can be customized using Yamaha's AV Controller smartphone app.
Adaptive Dynamic Range Control.
Bluetooth® ready with optional Yamaha adapter.
Built-in Wi-Fi.
24-bit/192kHz Burr-Brown digital-to-analog converters for all channels.
Virtual Cinema Front simulates surround sound effects.
Extra Bass offers enhanced low-frequency response.
Wireless Direct lets you stream music and control the player from a smartphone or tablet.
Ultra Low Jitter PLL circuitry reduces timing jitter from digital sources.
includes support for Pandora® Internet radio, and vTuner Internet radio.
Spotify Connect lets you play Spotify's streaming music library.
Apple AirPlay for streaming music from an iPhone, iPad, iPod touch or computer running iTunes.
HDMI version 1.4a audio/video switching: 6 in, 1 out.
Digital audio inputs: 1 optical and 2 coaxial.
3 pairs of stereo RCA inputs.
Front-panel minijack (3.5mm)
Front-panel USB input / Rear-panel USB port.
1/4" headphone jack.
Compressed Music Enhancer.
Direct digital connection.
Gapless playback of WAV, FLAC, ALAC files.
Dimensions: 17-1/8"W x 6-5/16"H x 12-15/16"D.

Speakers Specs.
Excellent for Use On Home/Boats/Marine/Decks/Poolside/Outdoors/etc.
Woofer Size 4"
Frequency: 100Hz - 20kHz.
Power Rating - RMS 50 watts, Peak 100 watts.
Sensitivity 86dB.
Completely Water Proof.
Woofer: Polypropylene with rubber surround.
Midrange: 25mm Polypropylene cone.
Tweeter: 20mm Piezo dome.
Nominal Impedance: 8 ohms.
Aluminum Grille (Non Removable).
Rotating logo for versatile mounting options.
Two 1/4-20 insert mounts on rear of each speaker.
UV treated ABS enclosure.
Includes multi-angle mounting brackets.