Will the VSX-LX505 damage the LS50 Meta?

No. The VSX-LX505 is rated for the LS50 Meta's 8 Ω load as it comes.

What impedance setting should I use for the LS50 Meta on the VSX-LX505?

None: the LS50 Meta is 8 Ω, and the VSX-LX505 needs no change for it.

Is the VSX-LX505 powerful enough for the LS50 Meta?

Comfortable. From a seat 2 m away, loud 95 dB movie peaks take about 41 W per speaker, and the VSX-LX505 is rated 120 W per channel. Cinema reference level, 105 dB peaks, takes about 401 W.

Does the KEF LS50 Meta work with the Pioneer VSX-LX505?

Verdict

Yes

The LS50 Meta is 8 Ω, and the VSX-LX505 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

120 W

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

How to connect them

Connect the LS50 Meta speakers to the VSX-LX505's front terminals with speaker wire.
Run Advanced MCACC with its microphone at your seat.

Plan the LS50 Meta 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

KEF LS50 Meta

Impedance: 8 Ω
Sensitivity: 85 dB (2.83 V, 1 m)
Recommended amplifier power: 40–100 W
MSRP: $1,600 a pair (MSRP, September 2026)

All LS50 Meta 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 LS50 Meta and VSX-LX505

Does the LS50 Meta work with the VSX-LX505?: Yes. The LS50 Meta is 8 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 LS50 Meta?: No. The VSX-LX505 is rated for the LS50 Meta's 8 Ω load as it comes.
What impedance setting should I use for the LS50 Meta on the VSX-LX505?: None: the LS50 Meta is 8 Ω, and the VSX-LX505 needs no change for it.
Is the VSX-LX505 powerful enough for the LS50 Meta?: Comfortable. From a seat 2 m away, loud 95 dB movie peaks take about 41 W per speaker, and the VSX-LX505 is rated 120 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.

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