Burr Brown OPA2134PA OPA2134 - Dual HiFi Audio OpAmp (Pack of 2)
The OPA2134 series are ultra-low distortion, low-noise operational amplifiers fully specified for audio applications
Superior Sound Quality, Ultra Low Distortion: 0.00008%, Low Noise: 8 nV/√Hz
True FET-Input: IB = 5pA, High Speed: Slew Rate: 20 V/µs Bandwidth: 8 MHz
High Open-Loop Gain: 120 dB (600 Ω), Wide Supply Range: ±2.5 V to ±18 V
Example Applications: Professional Audio and Music, Line Drivers, Line Receivers, Multimedia Audio, Active Filters, Preamplifiers, Integrators, Crossover Networks

Sony STRZA2100ES AV Audio & Video Component Receiver Black
7.2 Ch. A/V Receiver (105W @ 8ohms, 1KHz, 0.9%, 2CH)
Supports Dolby ATMOS and DTS:X decoding up to 9.1ch (using 2 extra power amplifiers) plus two phantom rear surround channels.
4K HDR compatibility (excluding front HDMI input) 6-in/2-out HDMI flexibility with HDCP 2.2 support
Optimized especially for custom in-home integration, and system configuration - Seamless IP Control integration with the leading control systems
Music connect allows integrators to combine the power of an ES-grade multichannel sound system with the flexibility of today’s wireless multi-zone music systems.
Web browser configurable set-up (programming)
IMAX enhanced for immersive sound and clarity
In the box: Calibration microphone, FM wire antenna, AM loop antenna, AC power cord, Remote control, R03 (size-AAA) batteries, Front cover