AV 20 represents the highest measure of performance and capability for reference-level home theater systems. This reference 13.4 Channel Balanced AV Preamplifier features Marantz HDAM discrete circuitry, and boasts seven HDMI inputs, each of which is 8K UHD compatible. Meticulously crafted with authentic materials 13.4 Channels 7 HDMI Inputs plus eARC 8K and Dolby Atmos 3D Audio HEOS Built-In AV 20 is engineered to create the most memorable home theater experiences possible. Our Marantz Sound Master meticulously tuned AV 20 for amazing performance with careful parts selection to create outstanding sound in your home. Comprehensive connectivity options and extensive optimization ability ensures AV 20 will always deliver the perfect results to suit your home theater. Make sure you get the best possible performance from your AV 20 by combining it with other Marantz products – such as the AMP 20. Multichannel Surround Technologies DTS-HD, DTS:X, DTS:X Pro, DTS Virtual:X, DTS Neural:X (13ch) Dolby TrueHD, Dolby Atmos, Dolby Atmos Height Virtualization, Dolby Atmos Music, Dolby Surround IMAX Enhanced Auro 3D / 360 Reality Audio / MPEG H Multichannel Stereo Max. Number of Processing (Pre-Amp) Channels: 13.4 Sound Enhancements Copper-Plated Chassis / Toroidial Power Transformer Pure Direct / Gold-Plated RCA Terminals Current Feedback Topology / Hyper Dynamic Amplifi er Modules (HDAM) Clock Jitter Reducer Dirac Live Upgradability Compressed Audio Enhancer: MDAX2 Audyssey Dynamic EQ / Dynamic Volume / Audyssey LFC Audyssey: MultEQ XT32 Network Wi-Fi / Bluetooth / Ethernet HEOS Multi-Room and Streaming Bluetooth Retransmit for Bluetooth Headphones Apple HomePod Lossy Formats: MP3, WMA, AAC Lossless Formats: FLAC, FLAC HD 192/24, ALAC, ALAC 192/24, WAV, WAV 192/24 DSD Audio Streaming: Yes (2.8/5.6 MHz) Gapless Playback: FLAC, ALAC, WAV, DSD TuneIn / AirPlay 2 / Spotify Roon-Ready Other Streaming Services: Amazon Music / TIDAL / Deezer / Napster / Soundcloud Compatible with Remote App for Smartphones: Marantz AVR Remote Compatible with Remote App for Tablets: Android / iOS / Amazon Kindle HDMI Total HDMI Inputs: 7 (rear) HDCP 2.3 Support HDMI Outputs: Main / Zone: 2 / 1 HDMI Upscaling: 1080p/4K to 8K GUI Overlay on HDMI HDMI 2.1: 8K/60Hz AB / 4K/120Hz AB 8K/60Hz AB / 4K/120Hz AB Pass-Through In/Out: 7 / 2 (up to 40 Gbps) HDR / HLG / Dolby Vision / HDR10+ / Dynamic HDR Enhanced ARC ALLM (Auto Low Latency Mode) Pass-Through for Gaming Variable Refresh Rate / Quick Frame Transport HDMI Pass-Though in Standby Mode DSD Audio Capability Auto LipSync Inputs/Outputs Video Composite In / Out : 2 / 0 Composite In / Out : 1 / 0 Composite In / Out : 7 / 3 Multi-Room Video Out: Video / HDMI: NO / YES Audio Analogue In: 6 (1× XLR) Phono (MM) In Digital In: Optical / Coaxial: 2 / 2 Multi-Room Out: Analog / Digital: 2 / 0 Multichannel Pre-Amp Out: Yes (15.4 RCA, 15.4 XLR) Subwoofer Out: Subwoofer Out Other Speaker A / B: Assignable Pre-Out Bi-Amp Drive: Assignable Pre-Out Front USB Input / USB Audio USB Power Supply (Rear) AM/FM Tuner AM/FM Tuner HEOS Multi-Room Integrated HEOS Link Compatibility: IR/ IP Multi-Room Zones: 3 Zone Audio Source: HDMI / Opt, Coax / Network, USB / Analogue Zone HDMI Output from HDMI Source IP Control / RS232 Control / Web Control / App Control IR Flasher In / Marantz Remote Bus DC Trigger Output: 3 HDMI Diagnostics Others Auto Speaker Setup by Microphone: Audyssey MultEQ XT32 Dirac Live (Upgrade) Front Display: 2-Line FLD, Port Hole OLED Graphic User Interface: Modern HD GUI GUI Languages: 3 Setup Assistant / Smart Select Firmware Update by Network / USB Variable Cross Over / Optimized Bass Redirection / Bass Sync Auto Power Off / Sleep Timer General Metal Front Panel System Remote Control: RC051SR Backlit Power Consumption: 90W Standby Consumption: 0.2W CEC Standby Consumption: 0.5W Network Standby Consumption: