Will the AVR-S570BT damage the SS-CS5?

No. The AVR-S570BT is rated for the SS-CS5's 6 Ω load as it comes.

What impedance setting should I use for the SS-CS5 on the AVR-S570BT?

None: the SS-CS5 is 6 Ω, and the AVR-S570BT needs no change for it.

Is the AVR-S570BT powerful enough for the SS-CS5?

Comfortable. From a seat 2 m away, loud 95 dB movie peaks take about 26 W per speaker, and the AVR-S570BT is rated 70 W per channel. Cinema reference level, 105 dB peaks, takes about 253 W.

Does the Sony SS-CS5 work with the Denon AVR-S570BT?

Verdict

Yes

The SS-CS5 is 6 Ω, and the AVR-S570BT is rated for speakers down to 6 Ω, so it drives them as is.

Speaker load

6 Ω speaker, rated down to 6 Ω

Power

70 W

Comfortable. About 26 W gives 95 dB peaks at 2 m

How to connect them

Connect the SS-CS5 speakers to the AVR-S570BT's front terminals with speaker wire.
Run room correction with its microphone at your seat.

Plan the SS-CS5 and AVR-S570BT in your own room.

Draw your room in 3D, place both, and see every connection checked and how loud they play at your seat. Designing is free.

Build it in your room

The specs that decide it

Sony SS-CS5

Impedance: 6 Ω
Sensitivity: 87 dB (2.83 V, 1 m)
MSRP: $168 a pair (MSRP, December 2021)

All SS-CS5 specs and pairings

Denon AVR-S570BT

Amplifier channels: 5
Height formats: None
Lowest speaker impedance: 6 Ω
MSRP: $449 each (MSRP, September 2026)

All AVR-S570BT specs and pairings

Questions about the SS-CS5 and AVR-S570BT

Does the SS-CS5 work with the AVR-S570BT?: Yes. The SS-CS5 is 6 Ω, and the AVR-S570BT is rated for speakers down to 6 Ω, so it drives them as is.
Will the AVR-S570BT damage the SS-CS5?: No. The AVR-S570BT is rated for the SS-CS5's 6 Ω load as it comes.
What impedance setting should I use for the SS-CS5 on the AVR-S570BT?: None: the SS-CS5 is 6 Ω, and the AVR-S570BT needs no change for it.
Is the AVR-S570BT powerful enough for the SS-CS5?: Comfortable. From a seat 2 m away, loud 95 dB movie peaks take about 26 W per speaker, and the AVR-S570BT is rated 70 W per channel. Cinema reference level, 105 dB peaks, takes about 253 W.

Swap one of them

Sony SS-CS5 + Yamaha RX500AWorks
Sony SS-CS5 + Denon AVR-S670HWorks
Sony SS-CS8 + Denon AVR-S570BTWorks
Polk Monitor XT15 + Denon AVR-S570BTWorks

References

Specs verified against the manufacturer's published data. Last checked September 15, 2026.

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