Coastal Source 216CT110BN vs Paradigm 819RM80SMG
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Choosing between the Coastal Source 216CT110BN and Paradigm 819RM80SMG? 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 Coastal Source 216CT110BN scores higher in form factor, room fit. The Paradigm 819RM80SMG leads in value, audio quality, volume/SPL.
For speaker performance, the Paradigm 819RM80SMG is more sensitive at 89 dB vs 88 dB, and impedances of 16Ω vs 4Ω. 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. Lower impedance draws more current from your receiver. A 4-ohm speaker needs a receiver rated for that load, or you risk thermal shutdown during loud passages.
These two Speaker (L/R) options trade wins across different dimensions. The right choice depends on which specs matter most for your room and listening preferences — review the detailed table below to decide.
For most home theaters, the Paradigm 819RM80SMG is the stronger choice — it leads in 3 of 5 scored dimensions. The Coastal Source 216CT110BN makes more sense if you prioritize the 2 dimensions where it leads.
Performance Overview
Scores based on specs and category benchmarks (0–100 scale)
Coastal Source 216CT110BN
Paradigm 819RM80SMG
Detailed Specifications
| Specification | ||
|---|---|---|
| Price | N/A | N/A |
| Driver Config | 2-way | 2-way sealed |
| Sensitivity | 88dB | 89dB |
| Impedance | 16Ω | 4Ω |
| Freq Response Low | 70Hz | 66Hz |
| Freq Response High | 20000Hz | 20000Hz |
| Crossover | — | 2500Hz |
| Bi-Amp Capable | No | No |
| Rec. Power Min | 25W | 15W |
| Rec. Power Max | 75W | 120W |
| Mounting Type | outdoor | outdoor |
| Mounting Depth | — | — |
| Cutout Diameter | — | — |
| 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 | No |
| Magnetic Grille | No | No |
| Grille Shape | — | — |
| Connector Type | — | — |
| 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 | Yes | No |
| UV Resistant | Yes | No |
| Salt Spray Rated | No | No |
| Enclosure Material | — | — |
| Grille Material | — | — |
| Bracket Type | — | — |
| Bracket Included | No | No |
| Dual Voice Coil (SDI) | No | No |
Key Differences
- Impedance: Coastal Source 216CT110BN at 16Ω vs Paradigm 819RM80SMG at 4Ω. Lower impedance draws more current from your receiver. A 4-ohm speaker needs a receiver rated for that load, or you risk thermal shutdown during loud passages.
- Rec. Power Min: Coastal Source 216CT110BN at 25W vs Paradigm 819RM80SMG at 15W
- Rec. Power Max: Coastal Source 216CT110BN at 75W vs Paradigm 819RM80SMG at 120W
- Freq Response Low: Coastal Source 216CT110BN at 70Hz vs Paradigm 819RM80SMG at 66Hz. Determines how much bass a speaker handles on its own versus relying on a subwoofer for low-end support.
- Sensitivity: Coastal Source 216CT110BN at 88dB vs Paradigm 819RM80SMG 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.
Which Should You Choose?
Choose Paradigm 819RM80SMG 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 Coastal Source 216CT110BN and Paradigm 819RM80SMG 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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