Comparison and Difference Between
Use dropdown menus to compare different models.
| Compare Speakers |
Brand and Model Specifications
Information about the brand, model release date.
| Manufacturer | Cambridge Audio | Polk Audio |
| Model | SX-50 | ES20 |
| Photo |  |
 |
| Release Date | 2013 | 2021 |
| HifiSpecs Rating | ||
| Amazon Rating | ||
| Price |
Technical Specs
Technical characteristics of the speakers.
| Amplification Type | Passive | Passive |
| Crossover Type | 2-Way | 2-Way |
| Enclosure type | Bass Reflex | Bass Reflex |
| Frequency Range (+/-3 dB)[Hz] | 50 - 22000 | 39 - 40000 |
| Frequency Range (-6dB)[Hz] | - | 38 - 45000 |
| Maximum SPL [dB] | - | 109 |
| Sensitivity (2,83 V/1 m)[dB] | 87 | 87 |
| Nominal Impedance (Ohms) | 8 | 8 |
| THD (Total Harmonic Distortion) | - | |
| Recommended Amplifier Power [W] | 10-100 | 20-150 |
| Crossover Frequency [Hz] | - | 2500 |
| Bass Reflex Tuning Frequency [Hz] | - | 49 |
| Driver Units | Tweeter: 1 x 25mm (1”) silk dome tweeter |
Tweeter: 1” dome tweeter |
| Connectivity | Wired | Wired |
| Inputs | Single Wire | Single Wire |
| Outputs | - | |
| Magnetic Shielding | No | No |
Placements and Distances
Where and how to put them.
| Form Factor | Shelf, Stand | Shelf, Stand |
| Distance from Wall [cm] | 15 | 15 |
Dimensions and Weight
Physical characteristics of the speakers (without stands).
| Length | ~6.3 in ~160.02 mm ~16 cm |
~9.49 in ~241.05 mm ~24.1 cm |
| Width | ~8.9 in ~226.06 mm ~22.61 cm |
~7.5 in ~190.5 mm ~19.05 cm |
| Height | ~9.4 in ~238.76 mm ~23.88 cm |
~14 in ~355.6 mm ~35.56 cm |
| Weight (Single Speaker) | ~6.6 lb ~2993.71 g ~2.99 kg |
~16 lb ~7257.48 g ~7.26 kg |
| Shipping Weight | ~ lb ~ |