Pioneer 2016 Manuel - Page 5

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Audio Technologies

Reflex Optimizer

1131

High directivity sound reflects off

the ceiling, while low directivity

sound directly reaches the ears.

When using Dolby-enabled speakers, this difference causes a

phase shift, making the sound feel uncomfortable. To solve this,

the Reflex Optimizer optimizes the performance of your

up-firing elevation speakers for your listening environment, by

aligning the phase of direct and indirect sound, matching the basic

tone, and optimizing the upward-oriented frequencies. The result

is overall seamless sound with Dolby-enabled speakers, allowing

the ideal reproduction of three-dimensional surround sound.

384 kHz/32-bit AKM DAC (AK4458)

1131

831

The AV receivers feature AK4458, a 384 kHz/32-bit premium

audio DAC from AKM (Asahi Kasei Microdevices Corporation).

With the latest low-distortion technology, the DAC provides

detailed and clear sound, ideal for Hi-Res Audio playback. The

32-bit digital filter creates natural and detailed sound.

Anti-Standing Wave Insulator

1131

831

The Anti-Standing Wave Insulator has been developed through

repeated listening tests, featuring a special form with no

parallel sides inside to prevent cavity resonance. This makes the

sound localisation, tone, and scale clearer, while also enhancing

the seamless connection between the channels, and the

response to quick sound.

Advanced Sound Retriever

1131

831

531

Pioneer's AV receivers feature the Advanced

Sound Retriever, which restores the output of

compressed audio—such as WMA, AAC, and

MP3—to the level of CD sound. The Advanced Sound Retriever

creates new signals to restore the minor details left out during

the compression process.

Direct sound from floor speaker

Reflected sound from Dolby-enabled speaker

Reflex Optimizer OFF: direct sound reaches the listener first

Reflex Optimizer ON: direct sound, reflected sound, and sound from the floor speaker

simultaneously reach the listener

Insulator (VSX-1131)

AV RECEIVERS REFERENCE GUIDE

Direct sound from Dolby-enabled speaker