
Denon AVR-S670H
Score: 73/100
Marantz STEREO 70s
Score: 83/100Rankings

The Marantz STEREO 70s is a compact 2-channel receiver delivering 75 W per channel with modern 8K-ready HDMI connectivity and HEOS streaming. Its limited surround-sound capability and lack of advanced room-calibration features may deter home-theater enthusiasts. Ideal for listeners seeking high-quality stereo performance in tight spaces.

The Denon AVR-S670H is a compact 5.2-channel receiver delivering 8K video, HEOS streaming and Audyssey calibration. Its modest 75 W power and limited channel expansion are trade-offs for the affordable price. Best suited for small-to-medium rooms where future-ready video is a priority.
| Attribute | ![]() | ![]() |
|---|---|---|
6best | 6best | |
1best | 1best | |
75 Wbest | 75 Wbest | |
| ↓ lower better | — | 210 Wbest |
| ↓ lower better | — | 0.2 Wbest |
2 years | 5 yearsbest | |
| ↓ lower better | 434.34 mmbest | 441.96 mm |
| ↓ lower better | 152.4 mm | 109.22 mmbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Audio(2) | ||
Supported Audio Formats | Dolby TrueHD; DTS HD Master Audio; Dolby Digital; DTS; DTS 96/24; PCM | FLAC, WAV, ALAC, DSD |
Channel Configuration | 5.2 | 2 |
Connectivity(1) | ||
Ethernet Port | false | true |
Features(1) | ||
Video Support (e.g., 4K/8K) | HDR10+; HLG; HDR; Dolby Vision; Dynamic HDR; VRR; ALLM; QFT | 4K/120,8K |
General(1) | ||
Warranty (years) | 2 years | 5 years |
Build & Design(4) | ||
Width (mm) | 434.34 mm | 441.96 mm |
Height (mm) | 152.4 mm | 109.22 mm |
Depth (mm) | 337.82 mm | 386.08 mm |
Weight (kg) | 9.38 kg | 10.89 kg |


Products in the top-left offer the best value (high score, low price).

Professional reviewers from Crutchfield, Parts Express and B&H view the AVR-S670H as a solid entry-level option that delivers future-ready 8K video and robust 3D audio decoding, while Audyssey MultEQ and the HEOS ecosystem add real value for small-room installations.
Consumers generally praise the receiver's easy setup, HEOS multi-room streaming and the convenience of the mobile app, while recurring concerns focus on the 75 W power rating and the lack of extra channels for larger Atmos setups.

The Absolute Sound commends the STEREO 70s for its solid stereo power, compact footprint, and a connectivity package that rivals larger AV receivers. Reviewers appreciate the discrete Class A/B amplification, HEOS integration, and the ability to handle high-resolution audio, positioning it as a high-quality music-first component that still accommodates modern video sources.
