MartinLogan 839ML45AWB vs Polk Audio 107RC60I
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Choosing between the MartinLogan 839ML45AWB and Polk Audio 107RC60I? Both compete in the Speaker (L/R) segment. Here’s how they compare across the specs that matter most for your home theater.
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Looking at overall performance dimensions: The MartinLogan 839ML45AWB scores higher in audio quality, volume/SPL, form factor, room fit. The Polk Audio 107RC60I leads in value.
For speaker performance, the Polk Audio 107RC60I is more sensitive at 89 dB vs 88 dB. Higher sensitivity means your receiver works less hard, leaving more headroom for dynamic peaks in movie soundtracks. A speaker rated 3 dB higher in sensitivity needs half the amplifier power to reach the same volume.
The MartinLogan 839ML45AWB holds an advantage across more performance dimensions, but the Polk Audio 107RC60I 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.
For most home theaters, the MartinLogan 839ML45AWB is the stronger choice — it leads in 4 of 5 scored dimensions. The Polk Audio 107RC60I makes more sense if you prioritize the 1 dimension where it leads.
Performance Overview
Scores based on specs and category benchmarks (0–100 scale)
MartinLogan 839ML45AWB
Polk Audio 107RC60I
Detailed Specifications
| Specification | ||
|---|---|---|
| Price | N/A | N/A |
| Driver Config | — | 2-way |
| Sensitivity | 88dB | 89dB |
| Impedance | 8Ω | 8Ω |
| Freq Response Low | 90Hz | 40Hz |
| Freq Response High | 20000Hz | 20000Hz |
| Crossover | 2300Hz | — |
| Bi-Amp Capable | No | No |
| Rec. Power Min | 100W | 20W |
| Rec. Power Max | — | 100W |
| Mounting Type | outdoor | in-ceiling |
| Mounting Depth | — | 2.875" |
| Cutout Diameter | — | 7.5625" |
| Cutout Width | — | — |
| Cutout Height | — | — |
| Wall Thickness Min | — | — |
| Wall Thickness Max | — | — |
| Back Box Included | No | No |
| Back Box Required | No | No |
| Mounting Mechanism | — | — |
| Installation Type | — | — |
| Stud Spacing | — | — |
| Paintable Grille | No | Yes |
| Magnetic Grille | No | No |
| Grille Shape | — | — |
| Connector Type | — | spring clips |
| Wire Gauge Max | — | — |
| Angle Adjustable | No | No |
| Pivot Angle | — | — |
| Treble Attenuation Switch | No | No |
| LCR Capable | No | No |
| Coaxial | No | No |
| IP Rating | — | — |
| Moisture Resistant | No | No |
| UV Resistant | No | No |
| Salt Spray Rated | No | No |
| Enclosure Material | — | — |
| Grille Material | — | — |
| Bracket Type | — | — |
| Bracket Included | No | No |
| Dual Voice Coil (SDI) | No | No |
Key Differences
- Rec. Power Min: MartinLogan 839ML45AWB at 100W vs Polk Audio 107RC60I at 20W
- Freq Response Low: MartinLogan 839ML45AWB at 90Hz vs Polk Audio 107RC60I at 40Hz. Determines how much bass a speaker handles on its own versus relying on a subwoofer for low-end support.
- Sensitivity: MartinLogan 839ML45AWB at 88dB vs Polk Audio 107RC60I at 89dB. Higher sensitivity means your receiver works less hard, leaving more headroom for dynamic peaks in movie soundtracks. A speaker rated 3 dB higher in sensitivity needs half the amplifier power to reach the same volume.
- Driver Config: MartinLogan 839ML45AWB at — vs Polk Audio 107RC60I at 2-way. 3-way speakers use dedicated drivers for bass, midrange, and treble, reducing crossover interference. Coaxial designs (KEF Uni-Q) mount the tweeter inside the woofer for better time-alignment.
- Crossover: MartinLogan 839ML45AWB at 2300Hz vs Polk Audio 107RC60I at —
Which Should You Choose?
Choose Polk Audio 107RC60I if you want:
- + better sensitivity — higher sensitivity means your receiver works less hard, leaving more headroom for dynamic peaks in movie soundtracks
- + better freq response low — determines how much bass a speaker handles on its own versus relying on a subwoofer for low-end support
See Where These Rank
Check our editorial rankings to see how MartinLogan 839ML45AWB and Polk Audio 107RC60I compare to the rest of the field.
Best Speaker (L/R) RankingsRelated Calculators
Specifications sourced from manufacturer datasheets and verified against retailer listings. Prices updated hourly from authorized retailers. Scoring uses our open methodology — products are never ranked, promoted, or suppressed based on affiliate commission rates.
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