In this review, we will be comparing specifications of R-51M and Motion 15i, two Bookshelf cameras from Klipsch and MartinLogan.
Let's have a brief look at the main features of Klipsch R-51M and MartinLogan 15i before getting into our more detailed comparison.
Let's read on the following sections in order to better understand in detail how Klipsch R-51M and MartinLogan 15i compares and hopefully end up with enough arguments to decide which one is better for you.
Both R-51M and Motion 15i are 2-way speakers. R-51M features a 1" Tractrix Horn Tweeter and 1 5.25" Copper-spun IMG Woofer with a Crossover frequency at 1660 Hz. On the other hand, Motion 15i features a 1.0 x 1.4" Folded Motion Tweeter and 1 5.25" Aluminum Woofer with a Crossover frequency at 2700 Hz.
R-51M has a frequency range of 62-21k Hz whereas Motion 15i has a frequency range of 60-25k Hz.
Impedance and Sensitivity
R-51M is a 8 ohms speaker compared to Motion 15i which has a nominal impedance of 5 ohms. These two speakers also have different sensitivity levels. R-51M sensitivity is rated at 93 dB and Motion 15i's is at 92 dB dB.
R-51M has a power range of 85 watts RMS whereas Motion 15i has a power range of 20-200 watts.
Input Type and Bi-Amping / Bi-Wiring
R-51M features Custom 5-way tool-less binding posts type posts and Motion 15i has a Custom 5-way tool-less binding posts type posts. None of these speakers feature b-amping/bi-wiring.
Cabinet Type and Port Position
Both R-51M and Motion 15i features dual binding post speaker terminals for bi-amping or bi-wiring.