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Brand Name
Polk
Klipsch
GENERAL:
Speaker Type
Bookshelf Speaker
Bookshelf Speaker
Number Of Channels
2.0 way speaker
2.0 way speaker
Amplification Type
Passive Speaker (External Amp)
Passive Speaker (External Amp)
Power Source
AC Powered
AC Powered
Control
Handheld Remote
N/A
N/A
Control by app
N/A
N/A
Amazon Alexa
N/A
N/A
Google Assistant
N/A
N/A
Specs
Power Range
20–100W
Up to 85 watts
Sensitivity
87dB
93 dB
Impedance
4- and 8-ohm
8 ohms
Frequency Range
75Hz–40kHz
62-21k Hz
Crossover Frequencies
2.5kHz
1660Hz
Build Material
Enclosure
Ported
Bass-Reflex
Finish
MDF
MDF/Wood-grain vinyl
Color
black, white, brown
Black
Audio Quality ( Tested )
Bass Accuracy:
Decent bass for small spaces
Offer sufficient depth and impact without overpowering the other frequencies.
Dialogue & Vocal Accuracy:
Clean voices
Voices are rendered with precision, resulting in an immersive and engaging listening experience
Treble Accuracy
Smooth treble region
They strike a balance between crispness and smoothness, ensuring a pleasant listening experience without harshness or sibilance.
Imaging & Soundstage:
Good imaging
Offer a commendable imaging capability, allowing sound sources to be well-defined and accurately placed.
Dynamic Range:
Average dynamic range
Speakers exhibit a wide dynamic range, effortlessly handling both soft and powerful audio passages.
Power Handling:
easy to drive
They efficiently utilize power inputs, making them suitable for various listening environments.
Frequency Response:
Broad frequency response
From the low-end to the high-end, they maintain clarity and fidelity, ensuring a well-rounded audio performance across different genres.
Transient Response:
Decent transient response
The Klipsch R-51M speakers exhibit excellent transient response, capturing the quick and precise changes in audio signals.
CONNECTIVITY:
Speaker Wire Input:
Yes
Yes
Speaker Level Input
N/A
N/A
Line Level Input
N/A
N/A
Digital Input (Optical)
N/A
N/A
Digital Input (Coaxial)
N/A
N/A
RCA Input
N/A
N/A
3.5mm Stereo Analog Input
N/A
N/A
Aux Input
N/A
N/A
Bi-amp Input:
N/A
N/A
HDMI Input
N/A
N/A
USB Port
N/A
N/A
Subwoofer Output
N/A
N/A
DRIVERS
Drive Unit
2x2
2x2
Tweeter Type
Terylene dome
Tractrix Horn
Tweeter Size (inches)
1
1-inch
Midrange Size (inches)
N/A
N/A
Midrange Type
N/A
N/A
Woofer Size (inches)
4
5.25-inch
Woofer Type
mica-fortified polypropylene
Copper-spun IMG Surrounded by Rubber
Other
Wireless Features
Bluetooth
N/A
N/A
Wi-Fi
N/A
N/A
Other
Size & Weight
Height (inches)
8.4
338.0mm ( 13.3-inch)
Width (inches)
5.4
178.0mm ( 7.0-inch)
Depth (inches)
6.1
215.0mm ( 8.4-inch)
Weight (pounds)
6lbs
5.00kg ( 11.00 lbs.)
Recommended Stand Height (inches)
28-32
24-28 inch
IN THE BOX
Accessories:
1 pair of Bookshelf loudspeakers, 2 Grille, Self-adhesive rubber feet, Wall-mount template, Owner's Manual, Online Product Registration
Pair of speakers,2 Grilles (installed),8 Self-adhesive rubber feet, Setup Guide.
User manual:
Yes
Yes
Connector:
Connector Type
Single gold-plated five-way binding posts
Gold-plated binding posts
Compatible Connector Types
bare wire, pin-connectors, spade-connectors, and banana plugs (single or dual)
banana plugs
Speaker Wire Compatibility
10AWG
10AWG
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