Will the XLS 1502 damage the R-40SA?

No. The XLS 1502 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 XLS 1502?

None: the R-40SA is 8 Ω, and the XLS 1502 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 XLS 1502's power rating with Klipsch's recommendation.

Does the Klipsch R-40SA work with the Crown XLS 1502?

Verdict

Yes

The R-40SA is 8 Ω, and the XLS 1502 is rated for speakers down to 2 Ω, so it drives them as is.

Speaker load

8 Ω speaker, rated down to 2 Ω

Power

—

Sensitivity not published

How to connect them

Connect the XLS 1502's inputs to the pre-outs of your receiver or processor: a power amplifier has no volume control of its own.
Connect each R-40SA to one of the XLS 1502's channels with speaker wire.

Plan the R-40SA and XLS 1502 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

Crown XLS 1502

Channels: 2
Lowest impedance: 2 Ω
MSRP: $810 each (MSRP, September 2026)

All XLS 1502 specs and pairings

Questions about the R-40SA and XLS 1502

Does the R-40SA work with the XLS 1502?: Yes. The R-40SA is 8 Ω, and the XLS 1502 is rated for speakers down to 2 Ω, so it drives them as is.
Will the XLS 1502 damage the R-40SA?: No. The XLS 1502 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 XLS 1502?: None: the R-40SA is 8 Ω, and the XLS 1502 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 XLS 1502's power rating with Klipsch's recommendation.

Swap one of them

Klipsch R-40SA + Yamaha RX-V6AWorks
Klipsch R-40SA + Onkyo TX-NR6100Works
KEF Q1 Meta + Crown XLS 1502Works
Klipsch RP-600M II + Crown XLS 1502Works

References

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

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