025 minute guide

Better sound using Phase Control

This receiver’s Phase Control feature uses phase correction measures to make sure your sound source arrives at the listening position in phase, preventing unwanted distortion and/or coloring of the sound (see illustration below).

During multichannel playback, LFE (Low-Frequency Effects) signals as well as low-frequency signals in each channel are assigned to the subwoofer or other the subwoofer and the most appropriate speaker. At least in theory, however, this type of processing involves a group delay that varies with frequency, resulting in phase distortion where the low-frequency sound is delayed or muffled by the conflict with other channels. With the Phase Control mode switched on, this receiver can reproduce powerful bass sound without deteriorating the quality of the original sound (see illustration below).

Phase Control technology provides coherent sound

reproduction through the use of phase matching1 for an optimal sound image at your listening position. The default setting is on and we recommend leaving Phase Control switched on for all sound sources.

THX STATUS PHASE

ANT

MPX SIGNAL SEL

MEM

AUDIO DISPLAY

CH

TV CTRL

RECEIVER

Press RECEIVER, then press PHASE (PHASE CONTROL) to switch on phase correction.

The PHASE CONTROL indicator on the front panel lights.

Phase Control OFF

Front speaker

Sound source Subwoofer

Listening

position

Sound muffled due to a delay in time

Rhythms blurred and difficult to hear

Bass sound with loss of depth

Sound of musical instruments with no reality

Phase Control ON

Front speaker

Listening

 

position

Sound source Subwoofer

Original sound preserved with no loss of clarity

Rhythms with crystal-like clarity

Bass sound with no loss of depth

Sound of musical instruments with superb reality

Note

1• Phase matching is a very important factor in achieving proper sound reproduction. If two waveforms are ‘in phase’, they crest and trough together, resulting in increased amplitude, clarity and presence of the sound signal. If a crest of a wave meets a trough (as shown in the upper section of the diagram above), then the sound will be ‘out of phase’ and an unreliable sound image will be produced.

The PHASE CONTROL feature is available even when the headphones are plugged in.

If your subwoofer has a phase control switch, set it to the plus (+) sign (or 0°). However, the effect you can actually feel when PHASE CONTROL is set to ON on this receiver depends on the type of your subwoofer. Set your subwoofer to maximize the effect. It is also recommended you try changing the orientation or the place of your subwoofer.

Set the built-in lowpass filter switch of your subwoofer to OFF. If this cannot be done on your subwoofer, set the cutoff frequency to a higher value.

If the speaker distance is not properly set, you may not have a maximized PHASE CONTROL effect.

The PHASE CONTROL mode cannot be set to ON in the following cases:

When the PURE DIRECT mode is switched on.

When the HDMI audio output parameter is set to THROUGH in Setting the Audio options on page 74.

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Pioneer VSX-03TXH manual 02 5 minute guide Better sound using Phase Control, Phase Control OFF, Phase Control on

VSX-03TXH specifications

The Pioneer VSX-03TXH is a versatile and powerful AV receiver designed to elevate your home entertainment experience. Known for its robust build quality and advanced features, the VSX-03TXH caters to audiophiles and casual viewers alike, providing rich audio and immersive surround sound capabilities.

One of the standout features of the VSX-03TXH is its 9.2-channel high current amplification, which delivers 130 watts per channel. This allows for a dynamic soundstage and excellent power handling, ensuring that every detail in your favorite movies and music is accurately reproduced. The receiver supports various audio formats, including Dolby Atmos, DTS:X, and IMAX Enhanced, enabling an immersive audio experience that makes you feel like you are part of the action.

Additionally, the VSX-03TXH comes equipped with Pioneer's proprietary MCACC (Multichannel Acoustic Calibration System). This technology analyzes the acoustic characteristics of your room and automatically adjusts speaker settings to optimize sound quality. This means you can enjoy the best possible audio performance, regardless of your room's layout.

The connectivity options on the VSX-03TXH are extensive, featuring multiple HDMI inputs and outputs, including support for 4K video pass-through, HDR, and HDCP 2.2. This ensures that your receiver is future-proof and can handle the latest video technology, making it a perfect match for modern 4K TVs and gaming consoles. Furthermore, the receiver supports HDBaseT, which allows for long-distance audio and video transmission, making installation more flexible.

In terms of streaming capabilities, the VSX-03TXH is equipped with Wi-Fi, Bluetooth, and Chromecast built-in, providing seamless access to your favorite music streaming services. Users can enjoy wireless listening and even multi-room audio with the help of compatible devices. The receiver also includes various digital and analog inputs, making it easy to connect a range of media devices.

The elegant design of the VSX-03TXH features an intuitive user interface and a clear, informative display that simplifies navigation. This allows you to quickly adjust settings or switch inputs without hassle. Overall, the Pioneer VSX-03TXH represents a powerful combination of high-end audio technology, robust functionality, and user-friendly features, making it an excellent choice for any home theater system.