# Denon AVC-S670H 5.2-Channel AV Amplifier

Source: https://www.ranked10.co.uk/tech/best-av-receivers/denon-avc-s670h
Ranked #9 in "Best AV Receiver 2026: 10 Ranked, and the Wattage Numbers That Don't Add Up": https://www.ranked10.co.uk/tech/best-av-receivers

- Price: £579.00 (checked on Amazon UK on 2026-09-15)
- Amazon rating: 4.4 from 19 ratings
- Buy on Amazon: https://www.amazon.co.uk/dp/B0CH1LPLRB?tag=ranked10-21

The Denon AVC-S670H is a 5.2-channel AV amplifier listed at £579.00 and ranked ninth in this guide, and it is the exception to the pattern the rest of the article describes: its headline number survives the small print. The bullet promises 'up to 135W per channel', and the spec table underneath gives both 'Output Power: 135 Watts' and 'Output Wattage: 135 Watts' — the same figure, three times over, with no 110 W gap.

Its ratings are where the arithmetic stops lining up. The listing shows 4.4 out of 5 from 19 ratings, while the star breakdown on the same page totals 100 — 67 five-star, 24 four-star, 3 three-star and 6 one-star. Six one-star ratings against 67 five-star is not a narrow spread of opinion. Everything on this page comes from the Amazon listing, not from any testing we carried out.

## Specification

| Field | Value |
|---|---|
| Price | £579.00 |
| Rating | 4.4 out of 5, from 19 ratings |
| Star breakdown on the same page | 67 five-star, 24 four-star, 3 three-star, 6 one-star (100 total) |
| Claimed power (bullet) | Up to 135 W per channel |
| Output Power (spec table) | 135 Watts |
| Output Wattage (spec table) | 135 Watts |
| Channels | 5.2 surround configuration; 'Number of Channels: 5' (as listed) |
| HDMI | 6 inputs and 1 output; 8K on three of the six inputs |

## Questions people ask

**How much power does the Denon AVC-S670H put out?**

The bullet says up to 135W per channel, and the Denon AVC-S670H spec table repeats 135 Watts for both 'Output Power' and 'Output Wattage'. The two figures agree here.

**How many HDMI inputs does the Denon AVC-S670H have?**

The Denon AVC-S670H spec table lists 'Total HDMI Port: 6', and the bullet states 8K is supported on three of those six inputs plus one output.

**Is the Denon AVC-S670H a 5.2 or a 5-channel amplifier?**

The Denon AVC-S670H name and its 'Surround Sound Channel Configuration' both say 5.2, while a separate spec field reads 'Number of Channels: 5' (as listed). The listing carries both figures.

**What can the Denon AVC-S670H stream?**

The Denon AVC-S670H has HEOS Built-in for Spotify, Tidal and Amazon Music HD, plus AirPlay 2, Bluetooth, TuneIn internet radio and Apple Music via AirPlay. The spec table lists Spotify and TIDAL under supported internet services.

**How is the Denon AVC-S670H rated by buyers?**

The Denon AVC-S670H shows 4.4 out of 5 from 19 ratings, while the star breakdown on the same page totals 100 — 67 five-star, 24 four-star, 3 three-star and 6 one-star.

**How much does the Denon AVC-S670H cost?**

£579.00 as listed — less than the £877.72 AVR-S970H in this guide and more than the £449 AVR-S770H.