Onkyo TX-SR577

435 x 151.5 x 329 mm

Also Available in Silver

1080p Video and High-Def Surround Sound via HDMI 1.3a*

Dolby Pro Logic IIz offers the proven quality of Dolby Pro Logic IIx and adds a new vertical dimension to your home theatre soundstage. As with previous versions of Dolby Pro Logic, this latest version delivers a convincing surround-sound experience from any movie or music source—even a stereo one. On the TX-SR577, Dolby Pro Logic IIz enables you to incorporate two “front height” speakers into your surround-sound set-up as an alternative to the two surround back speakers. The front height channels carry ambient, non-directional audio that helps immerse you even more deeply into your movies and games. With Dolby Pro Logic IIz, rain seems to burst from clouds right above you, and helicopters fly realistically overhead.

The TX-SR577 handles Dolby TrueHD and DTS-HD Master Audio —two lossless decoding formats that enable delivery of a bit-for-bit soundtrack identical to the studio master track. Both codecs take advantage of the high data capacity of the Blu-ray Disc (BD) format. Another BD-related technology is DTS-HD Express, which provides access to secondary audio features. The TX-SR577 also handles two “lossy” audio formats: Dolby® Digital Plus and DTS-HD High Resolution Audio™. Dolby Digital Plus is designed to accompany high-definition video delivered via disc media, broadcasts, and online content. DTS-HD High Resolution Audio, meanwhile, offers a greater bit rate, a higher sampling rate, and more channels than the core DTS technology.

The TX-SR577 has three Audyssey technologies to help create the most suitable listening environment for your home. (1) Audyssey 2EQ™ for Room Acoustic Correction Tailors multichannel audio for your home theatre by correcting problems both in frequency response and in the time domain (where most of the problems lie) for a clear, precise, and natural sound. (2) Audyssey Dynamic Volume™ Maintains the desired listening level for all content while optimizing the dynamic range. (3) Audyssey Dynamic EQ™ for Loudness Correction Solves the problem of deteriorating sound quality at lower volumes.

Advanced Features