In this review, we will be comparing specifications of R-51M and R-41M, two Bookshelf speakers by Klipsch.
Let's have a brief look at the main features of Klipsch R-51M and Klipsch R-41M 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 Klipsch R-41M compares and hopefully end up with enough arguments to decide which one is better for you.
Both R-51M and R-41M are 2-way speakers. R-51M features a 1" Tractrix Horn Tweeter , a " Midrange and 1 x 5.25" Copper-spun IMG Woofer with a Crossover frequency at 1660 Hz. On the other hand, R-41M features a 1" Tractrix Horn Tweeter , a " Midrange and 1 x 4" Copper-spun IMG Woofer with a Crossover frequency at 1730 Hz.
R-51M has a frequency range of 62-21k Hz whereas R-41M has a frequency range of 68-21k Hz.
Impedance and Sensitivity
R-51M and R-41M has the same Impedance of 8 ohms but where they differ is the sensitivity levels. R-51M sensitivity is rated at 93 dB and R-41M's is at 90 dB. This 3 dB difference makes Klipsch R-51M a more sensitive speaker compared to Klipsch R-41M, hence will play louder with the same amount of watts.
R-51M has a power range of 85 watts RMS whereas R-41M has a power range of 50 watts.
Input Type and Bi-Amping / Bi-Wiring
R-51M features Single Gold Plated Binding Posts type posts and R-41M has a Single Gold Plated Binding Posts type posts. None of these speakers feature b-amping/bi-wiring.
Cabinet Type and Port Position
Both R-51M and R-41M have a back firing ports.
Size of a speaker can sometimes become an important decision factor due to space constraints or in some cases purely for esthetic reasons. In this section, We are going to compare Klipsch R-51M's and Klipsch R-41M's external dimensions. Klipsch R-51M has external dimensions of 338.0mm x 178.0mm x 215.0mm ( 13.3inch x 7.0inch x 8.4inch ) whereas Klipsch R-41M has external dimensions of 287.0mm x 146.0mm x 200.0mm ( 11.2inch x 5.7inch x 7.8inch ) .
Klipsch R-51M is clearly the larger of the two speakers. Its body is 32mm wider, 51mm taller and 15mm deeper than Klipsch R-41M.
Below you can see the front view size comparison of Klipsch R-51M and Klipsch R-41M.