Will the VSX-LX505 damage the Motion 35XTi?

No. The VSX-LX505 is rated for the Motion 35XTi's 4 Ω load as it comes.

What impedance setting should I use for the Motion 35XTi on the VSX-LX505?

None: the Motion 35XTi is 4 Ω, and the VSX-LX505 needs no change for it.

Is the VSX-LX505 powerful enough for the Motion 35XTi?

More than you need. From a seat 2 m away, loud 95 dB movie peaks take about 16 W per speaker, and the VSX-LX505 is rated 120 W per channel. Cinema reference level, 105 dB peaks, takes about 160 W.

Does the MartinLogan Motion 35XTi work with the Pioneer VSX-LX505?

Verdict

Yes

The Motion 35XTi is 4 Ω, and the VSX-LX505 is rated for speakers down to 4 Ω, so it drives them as is.

Speaker load

4 Ω speaker, rated down to 4 Ω

Power

120 W

More than you need. About 16 W gives 95 dB peaks at 2 m

How to connect them

Connect the Motion 35XTi speakers to the VSX-LX505's front terminals with speaker wire.
Run Advanced MCACC with its microphone at your seat.

Plan the Motion 35XTi and VSX-LX505 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

MartinLogan Motion 35XTi

Impedance: 4 Ω
Sensitivity: 92 dB (2.83 V, 1 m)
Recommended amplifier power: 20–250 W
MSRP: $750 each (MSRP, September 2026)

All Motion 35XTi specs and pairings

Pioneer VSX-LX505

Amplifier channels: 9
Height formats: Dolby Atmos, DTS:X
Lowest speaker impedance: 4 Ω
MSRP: $1,399 each (MSRP, February 2025)

All VSX-LX505 specs and pairings

Questions about the Motion 35XTi and VSX-LX505

Does the Motion 35XTi work with the VSX-LX505?: Yes. The Motion 35XTi is 4 Ω, and the VSX-LX505 is rated for speakers down to 4 Ω, so it drives them as is.
Will the VSX-LX505 damage the Motion 35XTi?: No. The VSX-LX505 is rated for the Motion 35XTi's 4 Ω load as it comes.
What impedance setting should I use for the Motion 35XTi on the VSX-LX505?: None: the Motion 35XTi is 4 Ω, and the VSX-LX505 needs no change for it.
Is the VSX-LX505 powerful enough for the Motion 35XTi?: More than you need. From a seat 2 m away, loud 95 dB movie peaks take about 16 W per speaker, and the VSX-LX505 is rated 120 W per channel. Cinema reference level, 105 dB peaks, takes about 160 W.

Swap one of them

MartinLogan Motion 35XTi + Denon AVR-X2900HNeeds a setting change
MartinLogan Motion 35XTi + Emotiva XPA-2 Gen3Works
Klipsch RP-504C II + Pioneer VSX-LX505Works
Klipsch R-605FA + Pioneer VSX-LX505Works

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.