Polk Audio MONITORXT10 vs REL Tzero MKIII-HIGH-GLOSS-BLACK
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Choosing between the Polk Audio MONITORXT10 and REL Tzero MKIII-HIGH-GLOSS-BLACK? Both compete in the Subwoofer segment. Here’s how they compare across the specs that matter most for your home theater.
Pricing for both models is currently unavailable. Check the retailer links below for current deals.
Looking at overall performance dimensions: The Polk Audio MONITORXT10 scores higher in audio quality. The REL Tzero MKIII-HIGH-GLOSS-BLACK leads in volume/SPL, form factor, room fit. They score similarly in value.
Key subwoofer differences include driver sizes of 10" vs 6", and ported vs sealed enclosure designs. Room size and placement will significantly affect real-world bass performance.
The REL Tzero MKIII-HIGH-GLOSS-BLACK holds an advantage across more performance dimensions, but the Polk Audio MONITORXT10 may still be the better pick depending on which specs matter most to your setup. See the detailed comparison table below for the full breakdown.
Performance Overview
Scores based on specs and category benchmarks (0–100 scale)
Detailed Specifications
| Specification | ||
|---|---|---|
| Price | N/A | N/A |
| Driver Size | 10" | 6" |
| RMS Watts | 50W | 100W |
| -3dB Extension | 24Hz | — |
| -6dB Extension | — | 37Hz |
| Phase Control | Yes | No |
| LFE Input | Yes | Yes |
| Line Input | Yes | Yes |
| XLR Input | No | No |
| App Control | No | No |
| Passive | No | No |
| Enclosure | ported | sealed |
Key Differences
- Enclosure: Polk Audio MONITORXT10 at ported vs REL Tzero MKIII-HIGH-GLOSS-BLACK at sealed
- RMS Watts: Polk Audio MONITORXT10 at 50W vs REL Tzero MKIII-HIGH-GLOSS-BLACK at 100W
- Driver Size: Polk Audio MONITORXT10 at 10" vs REL Tzero MKIII-HIGH-GLOSS-BLACK at 6"
- -3dB Extension: Polk Audio MONITORXT10 at 24Hz vs REL Tzero MKIII-HIGH-GLOSS-BLACK at —
- -6dB Extension: Polk Audio MONITORXT10 at — vs REL Tzero MKIII-HIGH-GLOSS-BLACK at 37Hz
Which Should You Choose?
Choose Polk Audio MONITORXT10 if you want:
- + larger driver
Choose REL Tzero MKIII-HIGH-GLOSS-BLACK if you want:
- + better rms watts
See Where These Rank
Check our editorial rankings to see how Polk Audio MONITORXT10 and REL Tzero MKIII-HIGH-GLOSS-BLACK compare to the rest of the field.
Best Subwoofer RankingsRelated Calculators
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