Choosing among AV receivers & amplifiers is less about one universal winner than matching the receiver to your system. Do you want 7.2-channel wording, multi-zone audio, Bluetooth, or named connections such as 8K HDMI, MusicCast, Wi-Fi, and eARC? The four choices have a $199.04 listed-price spread, so your setup priorities matter as much as the price.
Quick take
- For the lowest listed price: Sony STR-DH750 combines 7.2-channel home theater wording with Bluetooth.
- For 7.2-channel and multi-zone audio: Yamaha RX-V675 puts both features in the same product name and includes a remote.
- For named network and HDMI features: Yamaha RX-V4A lists 8K HDMI, MusicCast, Wi-Fi, and eARC.
- For multi-zone digital processing: ADCOM GTP 500 identifies itself as a 5-channel digital processor with Multi-Channel RCA input.
Listed-price comparison
| Receiver | Listed price | Price bar |
|---|---|---|
| Yamaha RX-V675 7.2 Channel AV Receiver Multi-Zone | USD 198.00 | |
| Yamaha RX-V4A 5.2-Channel AV Receiver | 8K HDMI | USD 348.99 | |
| ADCOM GTP 500 AV Receiver 5-Ch. Multi Zone Digital Processor | USD 269.95 | |
| Sony STR-DH750 7.2 Channel Home Theater Bluetooth AV Stereo Receiver | USD 149.95 |
The bars show the relative listed prices only; they do not rank sound or features.
Decision matrix
- Price first: Sony STR-DH750, whose product name combines 7.2-channel home theater and Bluetooth and whose position in the price table is the lowest.
- 7.2-channel plus multi-zone: Yamaha RX-V675, with both phrases clearly attached to the receiver.
- Named connectivity features: Yamaha RX-V4A, with 8K HDMI, MusicCast, Wi-Fi, and eARC called out together.
- Multi-zone digital processing: ADCOM GTP 500, identified as a 5-channel digital processor with a remote.
- RCA-focused input: ADCOM GTP 500 lists Multi-Channel RCA, while the Yamaha models name HDMI, optical, USB, or Ethernet connections.
Product notes
Yamaha RX-V675 7.2 Channel AV Receiver Multi-Zone

The Yamaha RX-V675 is a straightforward match for a shopper who wants both the 7.2-channel and multi-zone phrases in one receiver name. At USD 198.00, it also sits near the lower end of this group's listed prices. Its named inputs-HDMI, Ethernet, USB, digital coaxial RCA, and digital optical TOSLINK-give the connection list useful breadth, and the package includes the original remote and power cord. The used unit has scratches and scuffs, plus red marker on the Zone 2 button. HDMI, RCA, speaker, and other audio/video cables are not included unless shown. Choose it for multi-zone use; accept the cosmetic wear and cable requirement.
Yamaha RX-V4A 5.2-Channel AV Receiver - 8K HDMI, MusicCast, Wi-Fi, eARC

Yamaha RX-V4A is a direct fit when your decision turns on the exact feature phrases 8K HDMI, MusicCast, Wi-Fi, and eARC. The 5.2-channel receiver also lists HDMI, Ethernet, USB, coaxial and optical digital, and stereo RCA inputs, along with banana speaker jacks, HDMI, headphone, and raw-cable speaker outputs. At USD 348.99, it carries the highest listed price here, so those named features need to matter to your setup. Its condition is open box, and its 5.2-channel designation differs from the 7.2-channel wording on the Yamaha RX-V675 and Sony STR-DH750. Choose it for the stated connectivity set, not by assuming a channel number alone predicts sound.
ADCOM GTP 500 AV Receiver 5-Ch. Multi Zone Digital Processor

ADCOM GTP 500 is identified as a 5-channel digital processor with multi-zone capability and includes a remote. ADCOM lists Multi-Channel RCA as its audio input, making it a focused choice for a system built around that connection type. At USD 269.95, it falls between the two Yamaha prices and the Sony price in this comparison. A shopper planning around HDMI, optical, USB, or Ethernet should compare Yamaha RX-V675 and Yamaha RX-V4A, which explicitly name those connections. The unit is used. Choose ADCOM for the multi-zone, digital-processor, and RCA-centered wording; its 5-channel designation and used condition are the main tradeoffs.
Sony STR-DH750 7.2 Channel Home Theater Bluetooth AV Stereo Receiver

Sony STR-DH750 makes sense when the target is a 7.2-channel home theater receiver with Bluetooth at the lowest listed price in this set. Its named inputs cover AM, AUX, composite, digital coaxial RCA, HDMI, stereo L/R RCA, and two-channel RCA; outputs include banana speaker jacks, digital optical TOSLINK, HDMI, raw-cable speaker jacks, RCA, and stereo L/R RCA. At USD 149.95, it is the price-first choice. The limitation is the used condition. Choose Sony for the combination of listed price, Bluetooth, and 7.2-channel wording; choose Yamaha RX-V675 or ADCOM GTP 500 when multi-zone language is the deciding feature.
Final recommendations by use case
- Choose Sony STR-DH750 if the lowest listed price, Bluetooth, and 7.2-channel wording are the combination you want.
- Choose Yamaha RX-V675 if multi-zone audio and 7.2-channel wording belong in the same setup, and a used receiver with noted cosmetic wear is acceptable.
- Choose Yamaha RX-V4A if 8K HDMI, MusicCast, Wi-Fi, or eARC are the named features driving your choice, and its open-box condition fits the plan.
- Choose ADCOM GTP 500 if multi-zone, digital processing, and Multi-Channel RCA match your system.
The shortest path is to start with the required connection or listening feature, then use the price table to decide how much the listed price matters. That keeps the Sony, Yamaha, and ADCOM choices tied to concrete setup needs rather than treating channel numbers as a quality ranking.