Onkyo TX-SR501 Receiver In Nearly Perfect Condition.

The Onkyo TX-SR501 is a 6.1-channel home theater receiver released around 2003. It was notable for introducing features like Dolby Digital EX and component video switching. 

Core Specifications

• Power Output: 65 watts per channel into 8 ohms (20–20,000 Hz) at 0.08% THD. 

• Surround Sound Formats: * Dolby Digital EX and DTS-ES (6.1-channel processing). 

• Dolby Pro Logic II and DTS Neo:6 (for creating surround sound from stereo sources). 

• Audio Processing: 96kHz/24-bit DACs for all channels. 

• Amplifier Tech: Uses Onkyo's WRAT (Wide Range Amplifier Technology) designed for high-current, low-impedance stability. 

Connectivity

• Digital Inputs: 2 Optical, 1 Coaxial. 

• Video: Component video switching (2 in, 1 out with 50MHz bandwidth, suitable for HDTV signals of that era). 

• Analog: 4 A/V inputs (including S-Video) and 2 audio-only inputs. 

• Subwoofer: Pre-amp output with adjustable crossover (60/80/100/120/150 Hz). 

• Speaker Terminals: Banana plug-compatible posts for all main channels. 

• Note: This unit does not have HDMI ports, as it predates the standard's widespread adoption. 

Physical Characteristics

• Dimensions: Approximately 17-1/8" W x 5-15/16" H x 15-7/16" D.

• Weight: Around 22 lbs.

• Front Panel: Brushed aluminum, available in black or silver. 

Key Performance Notes

• Heat: The unit is known to run warm; it requires at least a few inches of clearance for ventilation and should not be kept in a closed cabinet. 

• Setup: It lacks an on-screen display (OSD), so all configurations must be handled via the front panel display. 

• Compatibility: While it lacks modern features like Bluetooth or 4K pass-through, it remains a capable unit for vintage audio setups or secondary rooms where optical/coaxial digital audio is sufficient.

Remote Control not included.