Will the RX500A damage the R-40SA?

No. The RX500A is rated for the R-40SA's 8 Ω load as it comes.

What impedance setting should I use for the R-40SA on the RX500A?

None: the R-40SA is 8 Ω, and the RX500A needs no change for it.

How many watts does the R-40SA need?

Klipsch doesn't publish the R-40SA's sensitivity or impedance, so we can't work out a wattage for it. Compare the RX500A's power rating with Klipsch's recommendation.

Does the Klipsch R-40SA work with the Yamaha RX500A?

Verdict

Yes

The R-40SA is 8 Ω, and the RX500A is rated for speakers down to 4 Ω, so it drives them as is.

Speaker load

8 Ω speaker, rated down to 4 Ω

Power

—

Sensitivity not published

Height decoding

Yes

Dolby Atmos and DTS:X

How to connect them

Connect the R-40SA speakers to the RX500A's height terminals with speaker wire.
Run Room Correction with its microphone at your seat.

Plan the R-40SA and RX500A 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

Klipsch R-40SA

Impedance: 8 Ω
MSRP: $675 a pair (MSRP, September 2026)

All R-40SA specs and pairings

Yamaha RX500A

Amplifier channels: 7
Height formats: Dolby Atmos, DTS:X
Lowest speaker impedance: 4 Ω
MSRP: $600 each (MSRP, May 2026)

All RX500A specs and pairings

Questions about the R-40SA and RX500A

Does the R-40SA work with the RX500A?: Yes. The R-40SA is 8 Ω, and the RX500A is rated for speakers down to 4 Ω, so it drives them as is.
Will the RX500A damage the R-40SA?: No. The RX500A is rated for the R-40SA's 8 Ω load as it comes.
What impedance setting should I use for the R-40SA on the RX500A?: None: the R-40SA is 8 Ω, and the RX500A needs no change for it.
How many watts does the R-40SA need?: Klipsch doesn't publish the R-40SA's sensitivity or impedance, so we can't work out a wattage for it. Compare the RX500A's power rating with Klipsch's recommendation.

Swap one of them

Klipsch R-40SA + Denon AVR-S670HNot recommended
Klipsch R-40SA + Denon AVR-X1700HWorks
KEF Q1 Meta + Yamaha RX500ANeeds a setting change
Klipsch RP-600M II + Yamaha RX500AWorks

References

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

Brand names are trademarks of their owners. Not affiliated with or endorsed by any manufacturer. 3D models are our approximations. Prices are manufacturer list prices (MSRP) as of the month shown. How we earn from buy links: affiliate disclosure.