The catch
Denon AVR-S570BT
Physical heights cannot be powered from five main channels.
Side by side
For a fixed 5.1 room with four fast HDMI devices, the S570BT is the fit. The S770H is worth the step up if you will use two physical height speakers, six source inputs or HEOS.
Before you buy
Going from S570BT to S770H makes 5.1.2 possible, but not 5.1.4.
Where this comes from
Five ear-level speakers and two heights put all seven S770H amplifiers to use.
The catch
Physical heights cannot be powered from five main channels.
The catch
Just three HDMI inputs handle 4K120.


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See how the Denon S570BT and S770H differ for a fixed 5.1 system or a room with two real height speakers, including HDMI source counts and music connections.
For a fixed 5.1 room with four fast HDMI devices, the S570BT is the fit. The S770H is worth the step up if you will use two physical height speakers, six source inputs or HEOS.
Which one fits
S570BT provides five main amplifier channels, while S770H supports 5.1.2.
Three fast inputs on S770H.
S770H has six inputs, compared with four.
Either one handles this layout. Plans to add heights later would change the choice.
In practice
Going from S570BT to S770H makes 5.1.2 possible, but not 5.1.4.
Five ear-level speakers and two heights put all seven S770H amplifiers to use.
Four 4K120 sources are more than the S770H has fast inputs for, even though its total HDMI count is higher.
Of the S570BT’s inputs, four are fast. The S770H has six sockets, three of them fast.
With HEOS playback, all six S770H HDMI inputs can stay free for video devices.
Network music streaming is part of S770H. S570BT offers Bluetooth and source-device connections in its place.
Check a documented speaker layout against HDMI sources and external-amplifier plans.
Cannot handle this setup
This layout is not one of its documented speaker setups.
Handles your setup
Runs 5.1.2 on its own built-in amplifiers. Takes 3 HDMI devices, 1 of them at 4K/120Hz.
A powered subwoofer does not count toward the speaker channels. This checks one main room. Check Zone 2, bi-amping and unusual speaker assignments yourself. Leave room for ventilation, and confirm HDMI settings, cables and speaker impedance before you install.

Denon, AVR-S570BT
A fit for a five-speaker TV system, with four modern HDMI inputs. Casual phone playback runs over Bluetooth, so there is no network music setup to deal with.

Denon, AVR-S770H
You can use the seven amplifiers for 7.1 surround or for 5.1.2 with two heights. With six HDMI inputs and HEOS, it suits a system that mixes movies, games and music.
Spec by spec
| Spec | Denon AVR-S570BT | Denon AVR-S770H | In practice |
|---|---|---|---|
| Powered speaker layouts | 5.1 | 7.1 or 5.1.2 | The S770H gives you a choice of rear surrounds or one height pair. |
| Total HDMI inputs | 4 | 6 | Two more connected sources fit on the S770H. |
| 4K120-capable HDMI inputs | 4 | 3 | More fast inputs are found on the S570BT. |
| Room setup | Auto Setup | Audyssey MultEQ | With the S770H you get the Audyssey calibration workflow. |
| Network streaming and MM phono | Neither | HEOS and MM phono input | On the S770H you can do without separate network-streamer and phono-stage boxes. |
Trade-offs
Change of plan
Go with Denon AVR-S570BT. The finished 5.1 layout is covered by its five amplifier channels.
Go with Denon AVR-S770H. Five ear-level speakers and two heights run off its seven amplifier channels.
Neither model fits. Neither the documented processing layouts nor the internal-amplifier ones cover this requirement. Pick a receiver that has the physical configuration you need.
Decision guide
Stay with the S570BT if the room is a fixed 5.1 layout with four fast HDMI devices. Move up to the S770H when you will genuinely use two physical height speakers, six source inputs or HEOS.
In a 5.1.2 layout you have five ear-level speakers and two heights. The S770H powers that arrangement directly, whereas the S570BT stops at five main channels. Should the heights be years off, the added channels do nothing for you physically today. Once the cables are already run, let this difference settle the choice between the pair ahead of any music features.
The S570BT handles four high-frame-rate sources against three for the S770H, even though the S770H has more HDMI inputs overall. Connecting a source to the TV can sometimes send its audio back over eARC, but then the TV is part of the audio-format and control path. Treat that workaround as something to verify for compatibility. Do not count on it as a free input.
With an MM turntable and a network music library, the S770H is more self-contained. The S570BT can still take those sources, but through external equipment. Before deciding which receiver keeps the system simpler, add up that equipment, its cables and the inputs it still needs. Note that each model has one HDMI output, so neither directly handles a two-display installation.
By the numbers
What we found across the AV receivers we compare, plus the checked facts behind each finding.
16 of the 34 models checked meet every need here: “Put in two height speakers” and “Hook up four 4K120 sources”.
16 models fit, out of 34 checkedHow we countedThe count uses each product's current fit ratings for “Put in two height speakers” and “Hook up four 4K120 sources”. A need with no documented match is not counted.
| Product | Needs it meets | Facts we checked | Sources |
|---|---|---|---|
| Denon AVR-S570BT |
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| Denon AVR-S770H |
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Ready to buy
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