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Klipsch Flexus Sub 100 Subwoofer Review
Klipsch Flexus Sub 100 - Front View

Main Features

  • 10" Paper Woofer
  • 80 watts RMS Output
  • 26-250 Hz Frequency Response
  • Weight: 20.72 lbs / 9.40kg
  • Dimensions (H x W x D): 13-3/8" x 13-3/16" x 13-3/4"
MSRP: $350 (list price)
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Klipsch Flexus Sub 100 Subwoofer Review
Klipsch Flexus Sub 100 Klipsch Flexus Sub 1...
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Flexus Sub 100 is a Sealed type Powered Subwoofer by Klipsch with a frequency range of 26-250 Hz. It was released in 2024. It features 1 x 10" Paper Woofer, and powered by a Class D 80 watts amplifier.

The subwoofer for the Flexus soundbar system: a 10 inch long-throw paper cone in a sealed MDF cabinet, joined over Klipsch's 2.4 GHz Flexus Transport link rather than a cable.

Flexus Sub 100 is a member of Klipsch's Flexus series of Powered subwoofers. Below you can see the main specs of these subwoofers as well as review and comparison links.


**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.

Frequency Response

Klipsch Flexus Sub 100 has a Frequency response range of 26-250 Hz at ±3dB. With the help of its 1 x 10-inch driver and 80 watts RMS ( 160 watts MAX ) amplifier, the Flexus Sub 100 can go as low as 26 Hz which doesn't quite offer full range sound (20Hz-2kHZ) but it gets really close.

Here we have a comparison of how Flexus Sub 100's Low and High frequency values compare with the average, max and min Low and High frequency values in its class.
Low Frequency
Powered Subwoofers
Klipsch Flexus Sub 100
Min
Average
Max
High Frequency
Subwoofer Speakers
Klipsch Flexus Sub 100
Min
Average
Max

Among all subwoofers in our database with a max MSRP price of 500$, these are the 5 Powered Subwoofer models that can reach deeper bass levels than the Klipsch Flexus Sub 100's 26Hz:

  • OSD Nero DueVoce DualX8 with Low Frequency of 17 Hz (Compare w/ Flexus Sub 100)
  • SVS PB-1000 with Low Frequency of 19 Hz (Compare w/ Flexus Sub 100)
  • Klipsch SPL-120 with Low Frequency of 24 Hz (Compare w/ Flexus Sub 100)
  • Klipsch R-112SW with Low Frequency of 24 Hz (Compare w/ Flexus Sub 100)
  • Polk Monitor XT12 with Low Frequency of 24 Hz (Compare w/ Flexus Sub 100)

Inputs and Outputs

  • PreampLevel Inputs: RCA/LFE line in
  • Wireless:

Wireless Connection

Klipsch Flexus Sub 100 lets you make a wireless connection to your system without the need for an external adapter which is great way to minimize the cables running around.

Klipsch Flexus Sub 100 External Dimensions and Weight

Klipsch Flexus Sub 100 has external dimensions of (Height x Width x Depth) 13-3/8 x 13-3/16 x 13-3/4inch (340.0 x 335.0 x 349.0mm ).

Base Surface Area
Base surface area of a loudspeaker may become a determining factor when the space in your room or desk is limited. The base area of Klipsch Flexus Sub 100 is approximately 1169.2cm2 / 181.2inch2.

Weight

The Klipsch Flexus Sub 100 weighs 9.40kg / 20.7lbs. Weight of a subwoofer is an important factor when you need to move and reposition the unit often to find the optimal positioning, also known as 'Subwoofer Crawling'. Here is a comparison of how Flexus Sub 100's weight compares with the average, max and min weights in its class.

Weight
All Subwoofer Speakers
Klipsch Flexus Sub 100
Min
Average
Max
Weight
Subwoofer Speakers under $500
Klipsch Flexus Sub 100
Min
Average
Max

Cabinet type and Materials

Klipsch Flexus Sub 100 has a Acoustic Suspension type cabinet. Acoustic suspension aka Sealed subwoofers are preferred for music oriented systems whereas the Ported subwoofers are generally accepted to be more suitable for home theatre systems.

Does the Klipsch Flexus Sub 100 come with a Grille?

Flexus Sub 100 comes with grilles. The purpose of the grille is to protect the delicate driver elements from external impacts while still allowing the sound to pass as clearly as possible.

Recommended Accessories

Here is a list of accessories that we think you may need for the Klipsch Flexus Sub 100.

  • Vibration Isolators: IsoAcoustics isolators are our favorite isolators but you may find more affordable options too.
  • Acoustic Panels and Treatments: Your room is as important as your stereo equipment so acoustic treatments goes a long way in improving the overall performance.

Official Product Page

Official manufacturer's product page for the Klipsch Flexus Sub 100 speaker can be found below:
Official Product Page for Klipsch Flexus Sub 100

Warranty

5 Years of parts warranty and 5 Years of labor warranty is generally provided by the manufacturer.

Klipsch Flexus Sub 100 Detailed Specifications

General
BrandKlipsch
Full Model NameKlipsch Flexus Sub 100
TypePowered Subwoofer
Release Date2024
Frequency Response26-250 Hz
Enclosure TypeSealed
EnclosureAcoustic Suspension
Firing DirectionFront
Max SPL104 dB
Amplifier & Driver
Power (RMS)80 watts
Power (Peak)160 watts
Amplifier TypeClass D
Woofer10-inch Paper

Controls & Connections
Phase ControlYes
WirelessYes
Line-level InputsRCA/LFE line in
Physical
Dimensions (HxWxD)13-3/8" x 13-3/16" x 13-3/4" (340.0 x 335.0 x 349.0mm)
Weight9.40kg ( 20.72 lbs)
GrilleYes
Parts Warranty5 Years
Labor Warranty5 Years
Klipsch Flexus Sub 100 Alternatives in Powered Subwoofer Speakers
Model Frequency Woofer Amp Power Dimensions
Polk Monitor XT12
Compare
24-160k Hz 12" 50 watts 16-7/16inch x 16-1/16inch x 19-1/16inch "
SVS SB-1000 Pro
Compare
20-270k Hz 12" 325 watts 13-1/2inch x 13inch x 15-13/16inch "
B&W DB4S
Compare
10-350k Hz 10" 1000 watts 14-3/4 x 14-1/4 x 17-1/16inch"
Klipsch R-121SW
Compare
28-120k Hz 12" 200 watts 16-5/8inch x 16inch x 20-15/16inch "
Klipsch R-101SW
Compare
30-160k Hz 10" 150 watts 14-9/16inch x 14-1/16inch x 20-13/16inch "
Klipsch RP-1200SW
Compare
17-138k Hz 12" 400 watts 18-15/16inch x 17inch x 25-15/16inch "
KEF KC62
Compare
11-200k Hz 6.5" 1000 watts 9-5/8inch x 10-1/8inch x 11-1/16inch "
Klipsch R-100SW
Compare
32-120k Hz 10" 150 watts 14-5/8 x 12-9/16 x 18-1/16inch"
Wharfedale SW-15
Compare
30-120k Hz 15" 400 watts 22-7/16inch x 19-3/8inch x 24-3/16inch "
Klipsch SPL-100
Compare
27-125k Hz 10" 200 watts 16-7/16 x 14-1/16 x 18-13/16inch"
B&W ASW610
Compare
27-140k Hz 10" 200 watts 12-5/8 x 12-1/4 x 15-1/2inch"
KEF KUBE 8b
Compare
34-140k Hz 8" 300 watts 11-9/16 x 11-5/8 x 13-5/16inch"
KEF KUBE 10b
Compare
24-140k Hz 10" 300 watts 14-5/8 x 14 x 15-5/8inch"
B&W ASW608
Compare
32-140k Hz 8" 200 watts 10-11/16 x 10-1/4 x 13-3/4inch"
JBL Stage A120P
Compare
32-150k Hz 12" 250 watts 16-5/16 x 15-7/16 x 18-11/16inch"
Klipsch SPL-120
Compare
24-125k Hz 12" 300 watts 17-11/16 x 14-3/4 x 21-1/4inch"
Frequently Asked Questions about Klipsch Flexus Sub 100

How low can the Klipsch Flexus Sub 100 go?

The Klipsch Flexus Sub 100 has a frequency response of 26-250 Hz. It reaches down to 26Hz, deep enough for the low end of most music and movie effects.

How much power does the Klipsch Flexus Sub 100 have?

The Klipsch Flexus Sub 100 has a built-in 80-watt RMS (160-watt peak) Class D amplifier.

Is the Klipsch Flexus Sub 100 sealed or ported?

The Klipsch Flexus Sub 100 uses a Sealed enclosure. Sealed subwoofers trade a little output for tighter, more accurate bass and a smaller cabinet, which many listeners prefer for music.

What driver does the Klipsch Flexus Sub 100 use?

The Klipsch Flexus Sub 100 has a 10-inch Paper driver.

Does the Klipsch Flexus Sub 100 have app control or room correction?

Yes. The Klipsch Flexus Sub 100 offers phase control, letting you dial the sub into your room and blend it with your speakers.

How do you connect the Klipsch Flexus Sub 100?

The Klipsch Flexus Sub 100 connects via line-level RCA/LFE line in inputs, and supports a yes wireless connection.

How big and heavy is the Klipsch Flexus Sub 100?

The Klipsch Flexus Sub 100 weighs 9.40kg / 20.7lbs and measures 13-3/8" x 13-3/16" x 13-3/4" (HxWxD).

How much does the Klipsch Flexus Sub 100 cost?

The Klipsch Flexus Sub 100 has a manufacturer's list price (MSRP) of $350.

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