– Lights when a DTS signal is detected.
– Lights when one of the Home THX modes is selected.
– Lights during Surround EX matrix processing.
– Lights when a decoding 
– Lights during Dolby Pro Logic II and Pro Logic IIx processing.
VSA-AX10Ai specifications
The Pioneer VSA-AX10Ai is a high-end, multi-channel home theater receiver that stands out for its robust performance and cutting-edge technologies. Launched as a flagship model, it combines advanced audio processing capabilities with a formidable power output, catering to both audiophiles and home theater enthusiasts.One of the standout features of the VSA-AX10Ai is its Direct Energy HD Amplification technology, which incorporates a Class D amplifier design. This technology not only ensures high power efficiency but also minimizes distortion, delivering pristine sound quality at high volumes. The receiver boasts a substantial output of 200 watts per channel over eight channels, making it an ideal choice for driving large, demanding speaker systems.
In terms of audio decoding, the VSA-AX10Ai supports a multitude of formats, including Dolby TrueHD and DTS-HD Master Audio. This feature allows the receiver to provide a cinematic surround sound experience, ensuring that every detail of the soundtrack is delivered with accuracy and clarity. The device is also equipped with a high-quality 24-bit/192 kHz DAC, assuring top-notch sound reproduction from a variety of sources.
The VSA-AX10Ai features Pioneer’s sophisticated MCACC (Multi-Channel Acoustic Calibration System), which automatically calibrates the audio output to match the room's acoustics. By measuring sound from each speaker and adjusting levels, delays, and equalization, it ensures a balanced sound field, regardless of room shape or speaker placement.
Connectivity is extensive, with multiple HDMI inputs offering 4K pass-through and upscaling capabilities. This makes the receiver well-suited for modern home theater setups that require integration with 4K Ultra HD displays. It also includes legacy inputs, ensuring compatibility with older audio and video equipment.
Another noteworthy characteristic is the receiver’s build quality. The VSA-AX10Ai features a rigid chassis designed to minimize vibration as well as a premium-grade power supply, which contributes to its overall reliability and performance.
Overall, the Pioneer VSA-AX10Ai encapsulates the essence of high-fidelity home audio and video. With its extensive feature set, exceptional sound quality, and robust performance capabilities, it remains a top choice for those seeking a comprehensive and immersive home theater experience. Whether for music playback or movie watching, this receiver delivers an unparalleled audio experience that stands the test of time.