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Brand Name
Klipsch
KEF
Audioengine
GENERAL:
Speaker Type
Bookshelf Speaker
Bookshelf Speaker
Bookshelf Speaker
Number Of Channels
2.0 way speaker
2.0 way speaker
2.0 way speaker
Amplification Type
Passive Speaker (External Amp)
Passive Speaker (External Amp)
Active Speaker (Built-in Amp)
Power Source
AC Powered
AC Powered
AC Powered
Control
Handheld Remote
N/A
N/A
N/A
Control by app
N/A
N/A
N/A
Amazon Alexa
N/A
N/A
N/A
Google Assistant
N/A
N/A
N/A
Specs
Power Range
Up to 85 watts
40-100 W
60 W peak power total (15 W RMS)
Sensitivity
93 dB
85dB
83dB(B)/V/m
Impedance
8 ohms
8 ohms
10K ohms unbalanced
Frequency Range
62-21k Hz
79 Hz - 28 kHz
65 Hz-22 kHz ±2.0 dB
Crossover Frequencies
1660Hz
2.1kHz
100Hz
Build Material
Enclosure
Bass-Reflex
Ported
high-resin MDF
Finish
MDF/Wood-grain vinyl
MDF
high-gloss
Color
Black
Carbon Black, Titanium grey, Mineral White, Royal Blue
black, red, white
Audio Quality ( Tested )
Bass Accuracy:
Offer sufficient depth and impact without overpowering the other frequencies.
Even and tight bass that is enough for compact spaces
Low ends are clean and deep. It packs a punch compared to its compact size.
Dialogue & Vocal Accuracy:
Voices are rendered with precision, resulting in an immersive and engaging listening experience
Loud vocals
Clarity is excellent, vocals are loud and intelligible.
Treble Accuracy
They strike a balance between crispness and smoothness, ensuring a pleasant listening experience without harshness or sibilance.
Natural and rich highs
High-ends are quite good but might sound a bit harsh.
Imaging & Soundstage:
Offer a commendable imaging capability, allowing sound sources to be well-defined and accurately placed.
powerful imaging and soundfield
Imaging is decent and soundstage is wide.
Dynamic Range:
Speakers exhibit a wide dynamic range, effortlessly handling both soft and powerful audio passages.
satisfying dynamic range
Dynamic range is quite good. The speaker sounds good at all volumes
Power Handling:
They efficiently utilize power inputs, making them suitable for various listening environments.
Good power handling
A total power of 60W makes the speaker versatile for all content types.
Frequency Response:
From the low-end to the high-end, they maintain clarity and fidelity, ensuring a well-rounded audio performance across different genres.
Wide frequency response
The speaker has flat frequency response. It produces sound with accuracy.
Transient Response:
The Klipsch R-51M speakers exhibit excellent transient response, capturing the quick and precise changes in audio signals.
It has quick transient response.
It has quick transient response.
CONNECTIVITY:
Speaker Wire Input:
Yes
Yes
Yes
Speaker Level Input
N/A
N/A
N/A
Line Level Input
N/A
N/A
Yes
Digital Input (Optical)
N/A
N/A
Yes
Digital Input (Coaxial)
N/A
N/A
N/A
RCA Input
N/A
N/A
Yes
3.5mm Stereo Analog Input
N/A
N/A
Yes
Aux Input
N/A
N/A
N/A
Bi-amp Input:
N/A
N/A
HDMI Input
N/A
N/A
N/A
USB Port
N/A
N/A
Yes
Subwoofer Output
N/A
N/A
Yes
DRIVERS
Drive Unit
2x2
2x2
2x2
Tweeter Type
Tractrix Horn
vented aluminum dome
Silk dome tweeters
Tweeter Size (inches)
1-inch
1
0.75“
Midrange Size (inches)
N/A
N/A
Midrange Type
N/A
N/A
Woofer Size (inches)
5.25-inch
5.25
2.75”
Woofer Type
Copper-spun IMG Surrounded by Rubber
aluminum cone
aramid fiber woofers
Other
Wireless Features
Bluetooth
N/A
N/A
Yes
Wi-Fi
N/A
N/A
N/A
Other
Size & Weight
Height (inches)
338.0mm ( 13.3-inch)
11.9
10.5”
Width (inches)
178.0mm ( 7.0-inch)
7.9
7”
Depth (inches)
215.0mm ( 8.4-inch)
11
15”
Weight (pounds)
5.00kg ( 11.00 lbs.)
17.2lbs
10 lbs
Recommended Stand Height (inches)
24-28 inch
25-30
1.75
IN THE BOX
Accessories:
Pair of speakers,2 Grilles (installed),8 Self-adhesive rubber feet, Setup Guide.
1 pair of Bookshelf speakers, Foam port plugs, rubber feet, Manual, Warranty, Registration Card
Pair of Audioengine A2+ speakers, 6.5-foot speaker cable, power supply and cable, USB cable, 5-foot mini-jack audio cable, microfiber speaker and cable bags, manual
User manual:
Yes
Yes
Yes
Connector:
Connector Type
Gold-plated binding posts
binding posts
gold plated connectors
Compatible Connector Types
banana plugs
bare wire, pin-connectors, spade-lugs, and banana plugs
banana plugs, spades, or bare wire
Speaker Wire Compatibility
10AWG
standard speaker wire
16 AWG speaker wire
Where to Buy
Ebay
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Ali-Expess
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Wallmart
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