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Model
Brand Name
KEF
Audioengine
Klipsch
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)
Active Speaker (Built-in Amp)
Passive Speaker (External 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
10-100W
60 W peak power total (15 W RMS)
Up to 85 watts
Sensitivity
86dB (2.83V/1m)
83dB(B)/V/m
93 dB
Impedance
8 ohms
10K ohms unbalanced
8 ohms
Frequency Range
51Hz-28kHz (±3dB)
65 Hz-22 kHz ±2.0 dB
62-21k Hz
Crossover Frequencies
2.5kHz
100Hz
1660Hz
Build Material
Enclosure
Ported
high-resin MDF
Bass-Reflex
Finish
MDF
high-gloss
MDF/Wood-grain vinyl
Color
Satin Black / Satin White
black, red, white
Black
Audio Quality ( Tested )
Bass Accuracy:
The lows are deep, tight and adequate for small spaces
Low ends are clean and deep. It packs a punch compared to its compact size.
Offer sufficient depth and impact without overpowering the other frequencies.
Dialogue & Vocal Accuracy:
Loud and understandable vocals
Clarity is excellent, vocals are loud and intelligible.
Voices are rendered with precision, resulting in an immersive and engaging listening experience
Treble Accuracy
Rich and widely-dispersed highs
High-ends are quite good but might sound a bit harsh.
They strike a balance between crispness and smoothness, ensuring a pleasant listening experience without harshness or sibilance.
Imaging & Soundstage:
Great imaging and powerful soundstage
Imaging is decent and soundstage is wide.
Offer a commendable imaging capability, allowing sound sources to be well-defined and accurately placed.
Dynamic Range:
Good dynamic range
Dynamic range is quite good. The speaker sounds good at all volumes
Speakers exhibit a wide dynamic range, effortlessly handling both soft and powerful audio passages.
Power Handling:
Decent power handling
A total power of 60W makes the speaker versatile for all content types.
They efficiently utilize power inputs, making them suitable for various listening environments.
Frequency Response:
It has wide frequency response.
The speaker has flat frequency response. It produces sound with accuracy.
From the low-end to the high-end, they maintain clarity and fidelity, ensuring a well-rounded audio performance across different genres.
Transient Response:
It has quick transient response.
It has quick 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
Yes
Speaker Level Input
N/A
N/A
N/A
Line Level Input
N/A
Yes
N/A
Digital Input (Optical)
N/A
Yes
N/A
Digital Input (Coaxial)
N/A
N/A
N/A
RCA Input
N/A
Yes
N/A
3.5mm Stereo Analog Input
N/A
Yes
N/A
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
Yes
N/A
Subwoofer Output
N/A
Yes
N/A
DRIVERS
Drive Unit
2x2
2x2
2x2
Tweeter Type
aluminium dome
Silk dome tweeters
Tractrix Horn
Tweeter Size (inches)
1
0.75“
1-inch
Midrange Size (inches)
N/A
N/A
Midrange Type
N/A
N/A
Woofer Size (inches)
5.25
2.75”
5.25-inch
Woofer Type
aluminium Uni-Q
aramid fiber woofers
Copper-spun IMG Surrounded by Rubber
Other
Wireless Features
Bluetooth
N/A
Yes
N/A
Wi-Fi
N/A
N/A
N/A
Other
Size & Weight
Height (inches)
12
10.5”
338.0mm ( 13.3-inch)
Width (inches)
7.1
7”
178.0mm ( 7.0-inch)
Depth (inches)
10.9
15”
215.0mm ( 8.4-inch)
Weight (pounds)
12.3lbs
10 lbs
5.00kg ( 11.00 lbs.)
Recommended Stand Height (inches)
18-24
1.75
24-28 inch
IN THE BOX
Accessories:
A pair of Bookshelf speakers, 2 Foam port plugs, rubber feet, Manual, Warranty Information
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
Pair of speakers,2 Grilles (installed),8 Self-adhesive rubber feet, Setup Guide.
User manual:
Yes
Yes
Yes
Connector:
Connector Type
Gold plated binding post
gold plated connectors
Gold-plated binding posts
Compatible Connector Types
bare wire, pin-connectors, spade-lugs, and banana plugs
banana plugs, spades, or bare wire
banana plugs
Speaker Wire Compatibility
12 gauge
16 AWG speaker wire
10AWG
Where to Buy
Ebay
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Ali-Expess
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Wallmart
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