Does the Polk Monitor XT12 work with the Denon AVR-X1800H?
Verdict
Yes
The Monitor XT12 has a line-level input and speaker-level inputs, and the AVR-X1800H's 2 subwoofer outputs feed it.
Connection
Line-level
Sub out to its LFE input
Sub outputs
2
On the AVR-X1800H
Amplifier
50 W
Built into the Monitor XT12
How to connect them
- Run a subwoofer cable from the AVR-X1800H's sub out 1 to the Monitor XT12's line-level input.
- Set speakers to Small with an 80 Hz crossover.
- Run Audyssey MultEQ XT with its microphone at your seat.
Plan the Monitor XT12 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.
The specs that decide it
Polk Monitor XT12
- Amplifier
- 50 W
- Low end
- 24 Hz
- Inputs
- Line, speaker-level
- MSRP
- $399 each (MSRP, September 2026)
Denon AVR-X1800H
- Amplifier channels
- 7
- Subwoofer outputs
- 2
- MSRP
- $849 each (MSRP, September 2026)
Questions about the Monitor XT12 and AVR-X1800H
- Does the Monitor XT12 connect to the AVR-X1800H?
- Yes. The Monitor XT12 has a line-level input and speaker-level inputs, and the AVR-X1800H's 2 subwoofer outputs feed it.
- What crossover setting should I use with the Monitor XT12?
- Set your speakers to Small with an 80 Hz crossover: the standard starting point for a receiver and subwoofer, whichever subwoofer you use.
- How do I connect the Monitor XT12 to the AVR-X1800H?
- Run a subwoofer cable from the AVR-X1800H's sub out 1 to the Monitor XT12's line-level input.
Swap one of them
References
- Polk Monitor XT12: Spec sheet, polkaudio.com, retrieved September 15, 2026
- Polk Monitor XT12: Owner's manual, polkaudio.com, retrieved September 15, 2026
- Polk Monitor XT12: Manufacturer product page, polkaudio.com, retrieved September 15, 2026
- Polk Monitor XT12: Manufacturer product page, polkaudio.com, retrieved September 15, 2026 (2)
- Denon AVR-X1800H: Spec sheet, denon.com, retrieved September 15, 2026
- Denon AVR-X1800H: Manufacturer product page, denon.com, retrieved September 15, 2026
- Denon AVR-X1800H: Manufacturer product page, denon.com, retrieved September 15, 2026 (2)
- Denon AVR-X1800H: Owner's manual, manuals.denon.com, retrieved September 15, 2026
- Denon AVR-X1800H: Dimensional drawing, manuals.denon.com, retrieved September 15, 2026
Specs verified against the manufacturer's published data. Last checked September 15, 2026.
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