Will the AVR-X1800H damage the Prime Tower?

No. The AVR-X1800H is rated for the Prime Tower's 8 Ω load as it comes.

What impedance setting should I use for the Prime Tower on the AVR-X1800H?

None: the Prime Tower is 8 Ω, and the AVR-X1800H needs no change for it.

Is the AVR-X1800H powerful enough for the Prime Tower?

More than you need. From a seat 2 m away, loud 95 dB movie peaks take about 26 W per speaker, and the AVR-X1800H is rated 80 W per channel. Cinema reference level, 105 dB peaks, takes about 253 W.

Does the SVS Prime Tower work with the Denon AVR-X1800H?

Verdict

Yes

The Prime Tower is 8 Ω, and the AVR-X1800H 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

80 W

More than you need. About 26 W gives 95 dB peaks at 2 m

How to connect them

Connect the Prime Tower speakers to the AVR-X1800H's front terminals with speaker wire.
Run Audyssey MultEQ XT with its microphone at your seat.

Plan the Prime Tower and AVR-X1800H 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

SVS Prime Tower

Impedance: 8 Ω
Sensitivity: 87 dB (2.83 V, 1 m)
Recommended amplifier power: 20–250 W
MSRP: $700 each (MSRP, September 2026)

All Prime Tower specs and pairings

Denon AVR-X1800H

Amplifier channels: 7
Height formats: Dolby Atmos, DTS:X
Lowest speaker impedance: 4 Ω
MSRP: $849 each (MSRP, September 2026)

All AVR-X1800H specs and pairings

Questions about the Prime Tower and AVR-X1800H

Does the Prime Tower work with the AVR-X1800H?: Yes. The Prime Tower is 8 Ω, and the AVR-X1800H is rated for speakers down to 4 Ω, so it drives them as is.
Will the AVR-X1800H damage the Prime Tower?: No. The AVR-X1800H is rated for the Prime Tower's 8 Ω load as it comes.
What impedance setting should I use for the Prime Tower on the AVR-X1800H?: None: the Prime Tower is 8 Ω, and the AVR-X1800H needs no change for it.
Is the AVR-X1800H powerful enough for the Prime Tower?: More than you need. From a seat 2 m away, loud 95 dB movie peaks take about 26 W per speaker, and the AVR-X1800H is rated 80 W per channel. Cinema reference level, 105 dB peaks, takes about 253 W.

Swap one of them

SVS Prime Tower + Yamaha RX-V6AWorks
SVS Prime Tower + Onkyo TX-NR6100Works
Klipsch RP-600M II + Denon AVR-X1800HWorks
KEF Q350 + Denon AVR-X1800HWorks

References

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

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