US
Onkyo

Onkyo TX-RZ30BMDC K Av Receiver

  • AV Receiver
  • 170 watts
  • Onkyo
  • HDMI, Bluetooth, Wi-Fi
4.5/ 5 on Amazon8Amazon ratings2.7ProductDome score
  • Better rated than 86%
Limited evidenceLast refreshed Aug 4, 2026Amazon data + ProductDome analysis · methodology
Best forYou need HDMI switching plus amplified stereo output with wireless streaming

A straightforward 2 channel receiver with useful HDMI switching and wireless streaming, sized for a stereo setup rather than a full surround room.

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ProductDome scorecard

How it ranks among the 79 av receivers we track

2.7/ 5ProductDome scoreLimited evidence
Owner satisfaction · 56% of scorecategory median 4.2★4.3

4.5★ across 8 Amazon ratings, Bayesian-smoothed toward the category average.

Evidence strength · 17% of scorecategory median 193 ratings1.2

8 Amazon ratings, weighted on a log scale so huge counts don't drown everything.

Buyer demand · 11% of score0.0

Modest tracked demand last month.

Data quality · 11% of score3.8

Brand identity, imagery, description and spec coverage.

The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 79 av receivers we track - how the scorecard works · full av receivers data report. Confidence: limited - limited rating history.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.

Overview

The Onkyo TX-RZ30BMDC K is a 2.0 channel AV receiver with 4 HDMI ports, 170 watts of rated power, and built-in Bluetooth and Wi-Fi for wireless streaming.

With 4 HDMI inputs, the receiver is built to centralize multiple sources such as a game console, disc player, and streaming box behind one set of speaker outputs. The Wi-Fi and Bluetooth connectivity add wireless audio streaming on top of the wired HDMI switching.

  • 2.0 channel configuration
  • 170 watt power rating
  • 4 HDMI ports
  • Bluetooth and Wi-Fi connectivity

Who it's for

Buyers consolidating a couple of HDMI sources into a single amplified stereo output with wireless streaming. Not the choice for anyone assembling a multi speaker surround setup, since the listed channel count is 2.0.

Strengths and trade-offs

Drawn from this product's published specifications.

What stands out
  • 4 HDMI ports for source switching
  • 170 watts of rated power
  • Bluetooth and Wi-Fi built in
What to check first
  • 2.0 channel output limits it to stereo speaker setups
  • No details given on preamp outputs or subwoofer support

Performance notes

At 170 watts and 2.0 channel output, the receiver is built to drive a pair of speakers rather than a full surround array. The 4 HDMI ports handle source switching so multiple devices can share one connection to the display.

Specifications

BrandOnkyo
ModelTX-RZ30BMDC K
Dimensions & fit
Weight34.3 pounds
Power & efficiency
Power170 watts
Construction & materials
ColorBlack
Compatibility & installation
ConnectivityHDMI, Bluetooth, Wi-Fi
Other details
Brand TechOnkyo
Channels2.0
Hdmi Ports4

How it compares

This product against the closest alternatives we track in av receivers.

ProductAmazon ratingRatingsProductDome score
Onkyo TX-RZ30BMDC K Av ReceiverThis product4.5 / 582.7 / 5
Pyle PWA15BT Av ReceiverPyle4.4 / 51,6004.1 / 5
Sony STR-DH790 Av ReceiverSony4.3 / 53,0003.8 / 5
Diprogress DPT210HA Av ReceiverDiprogress4.3 / 51,6003.7 / 5
International MOBILE WALLY Av ReceiverInternational4.3 / 59843.7 / 5
Frequently asked

Questions about the Onkyo TX-RZ30BMDC K

Common buyer questions answered straight from the product spec data - no fluff, no "it depends".

How many HDMI ports does the TX-RZ30BMDC K have?

Four, allowing multiple source devices to be switched through the receiver.

Does it support wireless streaming?

Yes, it includes both Bluetooth and Wi-Fi connectivity.

How many channels does it drive?

The listed configuration is 2.0 channel, a stereo pair rather than surround speakers.