🏷️ Basic Information Identification Make: Denon Model: AVR-1804 / 884 AVC-1880 Ver.2 Type: AV Surround Receiver / Amplifier Generation: Ver.2 📋 Manual Details Document Info Manual Type: Service Manual Language: English Page Count: 89 Format: PDF Platform Compatibility: Windows and MAC 📄 Audio Performance General Surround Sound Formats: DTS-ES Discrete/Matrix 6.1, DTS Neo:6, Dolby Digital EX, Dolby Pro Logic IIx Amplifier Specs Power Output Per Channel Stereo: 120W (8 ohms, 20Hz-20kHz, 0.05% THD) Power Output Per Channel Surround: 110W (8 ohms, 1kHz, 0.7% THD) Frequency Response: 10Hz - 100kHz (+0 dB, -3 dB) Signal To Noise Ratio Line: 105 dB Total Harmonic Distortion: 0.005% (20Hz - 20kHz) 📄 Connectivity Inputs Digital Inputs Coaxial: 3 Digital Inputs Optical: 3 Hdmi Inputs: Not Specified (likely pre-HDMI era) Component Video Inputs: 3 Composite Video Inputs: 6 Audio Pre Outs: 7.1 Channel Outputs Digital Outputs Optical: 1 Speaker Terminals: Binding Posts 📄 Power Requirements Electrical Power Supply: AC 120V, 60Hz Power Consumption: Approx. 450W