SpeakerDecision
  • SPEAKERS by TYPE
    • Passive Bookshelf Speakers
    • Passive Floor-standing Speakers
    • Passive Center Channel Speakers
    • Passive In-wall Speakers
    • All Passive Speakers
    • Powered Subwoofers
    • Powered Stereo Speakers
  • AMPLIFIERS
  • SMART FIND

OSD Black Series SC800D vs Klipsch R-5650-S II Comparison

x
Speaker to replace
Change

OSD Black Series SC800D

Passive In-wall | 40-500Hz

OSD Black Series SC800D
CHECK PRICE
Change
    
Klipsch R-5650-S II

Passive In-wall | 60-23kHz

Klipsch R-5650-S II
CHECK PRICE
OSD Black Series SC800D OSD Black Series SC8...
See at AMAZON
Klipsch R-5650-S II Klipsch R-5650-S II
See at AMAZON
OSD Black Series SC8...
See at AMAZON
Klipsch R-5650-S II
See at AMAZON
OSD Black Series SC800D vs Klipsch R-5650-S II Speaker Comparison

In this review, we will be comparing SC800D and R-5650-S II, two Passive In-wall speakers from OSD and Klipsch.

Let's have a brief look at the main features of OSD Black Series SC800D and Klipsch R-5650-S II first before getting into our more detailed comparison.

OSD Black Series SC800D Key Specs

  • 1-way Design
  • " Tweeter
  • 8" Polypropylene Woofer
  • 40-500Hz Frequency Response
  • Impedance: 8ohms
  • Power Range:up to 300watts
  • Dimensions (H x W x D): 515.0" x 14.5000" x 4.0625"( 515.0 x 369.0 x 104.0mm )

Klipsch R-5650-S II Key Specs

  • 2-way Design
  • 1" Horn-loaded dome Tweeter
  • 6.5" Cerametallic Woofer
  • 60-23kHz Frequency Response
  • 92 dB Sensitivity
  • Impedance: 8ohms
  • Power Range:up to 50watts
  • Dimensions (H x W x D): 331.0" x 8.0000" x 3.6875"( 331.0 x 204.0 x 94.0mm )

What size room are the OSD Black Series SC800D and Klipsch R-5650-S II speakers good for?

The size of the room in which you are planning to use these loudspeakers is an important decision factor. Here we have compared their suitability to various sizes of environments considering their size and max power parameters:

Listening Environment* OSD Black Series SC800D Klipsch R-5650-S II
Near-field Poor Good
Small Room Poor Good
Mid-size Room Good Average
Large Room Good Poor
Very Large Room Average No way

(* Approximate Room sizes: Small < 100sq. ft / 9 m2, Mid-size: 100-220 sq. ft / 9-20 m2, Large 220-400 sq. ft / 20-36 m2, Very Large: > 400 sq. ft / 36 m2. Average Floor Height: 9" / 2.7m. Typical room sizes differ from country to country, and the actual listening experience changes depending on floor height, room shape, surface materials, listening position, speaker locations, etc.)

In the following sections, we will get into more detail in order to better understand how the OSD Black Series SC800D and Klipsch R-5650-S II compare and hopefully end up with enough arguments to decide which one of these loudspeakers is the better choice for you.


**This post contains affiliate links, and I will be compensated if you make a purchase after clicking through my links. As an Amazon Associate I earn from qualifying purchases.


Drivers

One of the fundamental differences between these two speakers is that SC800D is a 1-way design whereas the R-5650-S II is a 2-way speaker. 3-way designs utilize a midrange driver in addition to the tweeter and woofer on 2-way designs. Designing a crossover for a 3-way speaker is a complicated process and generally increases the overall cost of the speaker.

Driver OSD Black Series SC800D Klipsch R-5650-S II
Driver Setup 1-way 2-way
Tweeter -inch 1-inch
Midrange - -
Woofer 1 x 8-inch 1 x 6.5-inch

SC800D features a " Tweeter and 1 x 8" Polypropylene Woofer . On the other hand, the R-5650-S II features a 1" Horn-loaded dome Tweeter and 1 x 6.5" Cerametallic Woofer .

Frequency Response

SC800D has a frequency range of 40-500Hz whereas R-5650-S II has a frequency range of 60-23kHz. With a minimum frequency of 40Hz, the SC800D can go significantly deeper on the low side and provide stronger bass compared to the R-5650-S II's min frequency of 60Hz.

Below graphs depict how these two speakers compare with the max, min and average values of the Min and Max Frequencies of other speakers in the In-wall class in our database.

Low Frequency

In-wall Speakers

SC800D
R-5650-S II
Min
Average
Max
High Frequency

In-wall Speakers

OSD Black Series SC800D
Klipsch R-5650-S II
Min
Average
Max

None of these speakers achieves full range experience which is commonly agreed as 20Hz-20kHz. In order to achieve lower lows / deeper bass, we recommend you pair these with a subwoofer. Visit our Powered Subwoofers section to find out more about the available options.

Power Range

Power range is the range of input power in watts RMS that a loudspeaker is designed to handle. While using an amplifier within this range ensures the nominal performance , inputting a power that is higher than the max wattage can result in a damaged speaker.

SC800D can handle a max power of 300 watts RMS from the amp the whereas R-5650-S II has a max power handling value of 50 watts RMS, 250 watts less than the SC800D.

Keep in mind that a higher max power handling value doesn't necessarily make that a louder speaker compared to a lower max handling speaker. Loudness or the sound level is also impacted by parameters such as Impedance, sensitivity and system efficiencies.

Input Type and Bi-Amping / Bi-Wiring

SC800D features Spring Posts type posts and R-5650-S II has a Spring Posts type posts. None of these speakers feature bi-amping/bi-wiring.

Physical Specs

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 OSD Black Series SC800D's and Klipsch R-5650-S II's external dimensions. OSD Black Series SC800D has external dimensions of 515.0 x 369.0 x 104.0mm ( 20.2500-inch x 14.5000-inch x 4.0625-inch) whereas Klipsch R-5650-S II has external dimensions of 331.0 x 204.0 x 94.0mm ( 13.0000-inch x 8.0000-inch x 3.6875-inch) .

OSD Black Series SC800D is clearly the larger of the two speakers. Its body is 165mm wider, 184mm taller and 10mm deeper than Klipsch R-5650-S II.

What's in the Box of OSD Black Series SC800D?

Here are the items that are included inside the box of SC800D:
  • In-wall passive subwoofer
  • Grille
  • 10 Screws
  • 2 Self-adhesive rubber pads
  • Cutout Template
  • Install Guide
  • What's in the Box of Klipsch R-5650-S II?

    Here are the items that come with the R-5650-S II:
  • In-wall speaker
  • White metal mesh grille
  • Cardboard template
  • Owners Manual (En/Fr/Sp)

  • Reasons to choose OSD Black Series SC800D over Klipsch R-5650-S II
    Max Input Power 300 watts vs 50 watts Handle more power from your amplifier
    Woofer Size 8 inches vs 6.5 inches Larger woofer
    Low Frequency Response 40 Hz vs 60 Hz Generates deeper bass
    Passive Radiator 1 x 10-inch vs None Increases the bass performance
    Price per pair* 300USD vs 458USD costs less (*prices may change depending on the seller, location and time)

    Reasons to choose Klipsch R-5650-S II over OSD Black Series SC800D

    Driver Setup 2-way vs 1-way Have a dedicated mid-range driver
    High Frequency Response 23k Hz vs 1k Hz Generates higher frequency
    Height 331mm vs 515mm Easier to fit in smaller spaces
    Base Surface Area 191cm2 vs 383cm2 Takes less floor space
    OSD Black Series SC800D vs Klipsch R-5650-S II Specs Table
    Detailed comparison of specifications
    General OSD Black Series SC800D Klipsch R-5650-S II
    Brand OSD Klipsch
    Speaker Type Passive In-wall Speaker Passive In-wall Speaker
    Power Range up to 300 watts up to 50 watts
    Sensitivity n/a 92 dB
    Impedance 8 ohms 8 ohms
    Frequency Response 40-500Hz 60-23kHz
    Drivers
    Woofer Quantity 1 1
    Woofer Size 8" 6.5"
    Woofer Composition Polypropylene Cerametallic
    Woofer Surround Material Rubber Rubber
    Tweeter Size - 1"
    Tweeter Type n/a Horn-loaded dome
    Aimable Tweeter No No
    Midrange Driver N/A" N/A"
    Physical Specs
    Height 515.0mm (20.3") 331.0mm (13")
    Width 369.0mm (14.5") 204.0mm (8")
    Depth 104.0mm (4.1") 94.0mm (3.7")
    Enclosure In-wall In-wall
    Moisture Resistancy No No
    Connections
    Biamp Inputs No No
    Other
    Parts Warranty 10 Years Ltd. Lifetime
    Labor Warranty 10 Years Ltd. Lifetime

    Most Popular Speakers
    Klipsch Reference R-51M
    Klipsch R-51M
    2-way | 93 dB | 8 ohms
    Wharfedale Elysian 2
    Wharfedale Elysian 2
    3-way | 89 dB | 4 ohms
    ELAC Debut 2.0 B6.2
    ELAC Debut 2.0 B6.2
    2-way | 87 dB | 6 ohms
    Bowers & Wilkins 606 S2 Anniversary Edition
    B&W 606 S2
    2-way | 88 dB | 8 ohms
    KEF Q150
    KEF Q150
    2-way | 86 dB | 8 ohms
    Klipsch Reference Premiere RP-500M
    Klipsch RP-500M
    2-way | 93 dB | 8 ohms
    Wharfedale EVO4.1
    Wharfedale EVO4.1
    2-way | 87 dB | 8 ohms
    Bowers & Wilkins 606
    B&W 606
    2-way | 88 dB | 8 ohms
    Copyright © 2025 by SpeakerDecision
    About Privacy Contact US Camera Decision

    Report a Correction