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Is the Polk Audio Signature S15 an easy to drive speaker?
Polk Audio Signature S15
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There are two main factors that set how easy or difficult a speaker is to drive, these are Speaker Sensitivity and Impedance. A speaker rated lower Ohms requires more current than a higher Ohm speaker. Similarly, a speaker with lower sensitivity requires more power to reach the same volume as a speaker with higher sensitivity.

Polk S15's nominal impedance level is 8 Ohms . 8 Ohms is pretty much the standard impedance amongst stereo speakers and amplifiers so Polk Audio Signature S15 is not considered a difficult to drive speaker from Impedance perspective.

Polk S15 has a sensitivity of 88 dB.

Read our detailed Polk Audio Signature S15 Review
Polk Audio Signature S15 Alternatives in Passive Bookshelf Speakers
Model Type Sensitivity Impedance Frequency
Polk ES15
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2-way 85 dB 8 ohms 44-40k Hz
Q Acoustics 3020i
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2-way 88 dB 6 ohms 64-30k Hz
Polk S10
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2-way 87 dB 8 ohms 67-40k Hz
Polk S20
Compare
2-way 88 dB 8 ohms 39-40k Hz
Wharfedale 220
Compare
2-way 86 dB 8 ohms 56-20k Hz
Klipsch R-51M
Compare
2-way 93 dB 8 ohms 62-21k Hz
KEF Q150
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2-way 86 dB 8 ohms 51-28k Hz
ELAC Debut 2.0 B5.2
Compare
2-way 86 dB 6 ohms 46-35k Hz
Klipsch R-41M
Compare
2-way 90 dB 8 ohms 68-21k Hz
SVS Prime Bookshelf
Compare
2-way 87 dB 8 ohms 48-25k Hz
Other Frequently Asked Questions about Polk Audio Signature S15
What is the External Dimensions of Polk Audio Signature S15
What is the Speaker Sensitivity of Polk Audio Signature S15
is the Polk Audio Signature S15 an easy to drive speaker?
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