Pioneer VSX-423

Pioneer VSX-423 5.1 channel AV receiver

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The Pioneer VSX-423 was a 5.1 receiver made by Pioneer in 2013. It's now no longer being manufactured and has been replaced by a new model.

Also known as: VSX423, VSX423K, VSX 423 K

Tech Spec


Model VSX-423-K

Amplifier Section

Amplifier type Integrated
Maximum surround 5.1
Number of channels 5
Subwoofer pre-outs 1
Power rating at 6 ohms
Power per channel 130W
Biamp capability No
Multiroom No

Audio Section

Surround sound processing Dolby Digital, Dolby Digital Plus, Dolby Pro Logic II, Dolby True HD, DTS, DTS Neo:6, DTS 96/24, DTS Express, DTS-HD, DTS-HD Master Audio
Supports ARC (audio return channel) Yes

Video Section

Supported video formats 576p, 720p, 1080i, 1080p, 1080p24, 4K
4K passthrough Yes

Tuner Section

Tuner AM, FM
Tuner features RDS
Tuner presets 30 in total

Inputs and Outputs

HDMI connections 4 in, 1 out
Composite connections 2 in, 1 out
USB connections 1, To playback from USB sticks, To playback from USB hard drives
Analog connections 1 in (minijack)
Optical connections 1 in
Digital Co-axial connections 1 in
Headphone output Yes, 3.5 mm


Dimensions (W x H x D) 435 x 168 x 331.5 mm
Net weight 8.3 kg