Will the RX500A damage the Stage 240B?

No. The RX500A is rated for the Stage 240B's 6 Ω load as it comes.

What impedance setting should I use for the Stage 240B on the RX500A?

None: the Stage 240B is 6 Ω, and the RX500A needs no change for it.

Is the RX500A powerful enough for the Stage 240B?

Comfortable. From a seat 2 m away, loud 95 dB movie peaks take about 41 W per speaker, and the RX500A is rated 70 W per channel. Cinema reference level, 105 dB peaks, takes about 401 W.

Does the JBL Stage 240B work with the Yamaha RX500A?

Verdict

Yes

The Stage 240B is 6 Ω, and the RX500A is rated for speakers down to 4 Ω, so it drives them as is.

Speaker load

6 Ω speaker, rated down to 4 Ω

Power

70 W

Comfortable. About 41 W gives 95 dB peaks at 2 m

How to connect them

Connect the Stage 240B speakers to the RX500A's front terminals with speaker wire.
In the RX500A's speaker setup, set speaker impedance to 6 Ω.
Run Room Correction with its microphone at your seat.

Plan the Stage 240B 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

JBL Stage 240B

Impedance: 6 Ω
Sensitivity: 85 dB (2.83 V, 1 m)
Recommended amplifier power: 20–125 W
MSRP: $330 a pair (MSRP, September 2026)

All Stage 240B 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 Stage 240B and RX500A

Does the Stage 240B work with the RX500A?: Yes. The Stage 240B is 6 Ω, and the RX500A is rated for speakers down to 4 Ω, so it drives them as is.
Will the RX500A damage the Stage 240B?: No. The RX500A is rated for the Stage 240B's 6 Ω load as it comes.
What impedance setting should I use for the Stage 240B on the RX500A?: None: the Stage 240B is 6 Ω, and the RX500A needs no change for it.
Is the RX500A powerful enough for the Stage 240B?: Comfortable. From a seat 2 m away, loud 95 dB movie peaks take about 41 W per speaker, and the RX500A is rated 70 W per channel. Cinema reference level, 105 dB peaks, takes about 401 W.

Swap one of them

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.