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
      By Brand
      Acoustic Energy Audio-Technica Audioengine Bluesound Bowers Wilkins Buchardt Cambridge Audio DALI Definitive Technology Dynaudio ELAC Emotiva Fluance Focal Genelec GoldenEar Harbeth Jamo JBL Kanto KEF KLH Klipsch Leak Mackie MartinLogan McIntosh Mission MoFi Monitor Audio Nuvo Onkyo OSD Paradigm Polk Audio PS Audio PSB Q Acoustics REL Revel Russound Sennheiser Sonos Sonus faber Sony SVS Technics Triangle Velodyne Victrola Wharfedale Wilson Audio
  • AMPLIFIERS
    • By Type
      All Amplifiers Integrated Amplifiers Stereo Receivers Streaming Amplifiers Power Amplifiers
      By Brand
      Advance Paris Anthem Arcam AudioControl Audioengine Audiolab Bluesound Bose Buchardt Cambridge Audio Denon Devialet ELAC FiiO HiFi Rose Integra JBL LEAK Marantz Mark Levinson McIntosh Michi MISSION NAD Naim Onkyo OSD Parasound Peachtree Primare PS Audio Rega Roksan Rotel Sonos Sony SVS TEAC Technics WiiM Yamaha
  • SMART FIND
  • TOOLS
  • BLOG
Klipsch SPL-120 Subwoofer Review
Klipsch SPL-120 - Image 1

Main Features

  • 12" Cerametallic Woofer
  • 300 watts RMS Output
  • 24-125 Hz Frequency Response
  • Weight: 45.00 lbs / 20.45kg
  • Dimensions (H x W x D): 17-11/16" x 14-3/4" x 21-1/4"
MSRP: $499 (list price)
Check price atAmazon›

Compare To

x
Add a Subwoofer for comparison
Klipsch SPL-120 Subwoofer Review
Klipsch SPL-120 Klipsch SPL-120
Check price atAmazon›

SPL-120 is a Ported type Powered Subwoofer by Klipsch with a frequency range of 24-125 Hz. It was released in 2018. It features 1 x 12" Cerametallic Woofer, and powered by a 300 watts amplifier.

Klipsch SPL-120  Lifestyle
Klipsch SPL-120 Lifestyle

SPL-120 is a member of Klipsch's SPL series of Powered subwoofers. The SPL range are Klipsch's high-output powered subwoofers. Below you can see the main specs of these subwoofers as well as review and comparison links.

Klipsch SPL Series Subwoofers
Model Frequency Woofer Amp Power Weight
Klipsch SPL-100
Compare
27-125k Hz 10" 200 watts 16.82kg
Klipsch SPL-120
24-125k Hz 12" 300 watts 20.45kg
Klipsch SPL-150
Compare
18-125k Hz 15" 400 watts 34.27kg


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

Frequency Response

Where should the crossover go? →  ·  What will your room do to this bass? →

Klipsch SPL-120 has a Frequency response range of 24-125 Hz at ±3dB. With the help of its 1 x 12-inch driver and 300 watts RMS (600 watts MAX) amplifier, the SPL-120 can go as low as 24 Hz which doesn't quite offer full range sound (20Hz-2kHZ) but it gets really close.

Here we have a comparison of how SPL-120'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 SPL-120
Min
Average
Max
High Frequency
Subwoofer Speakers
Klipsch SPL-120
Min
Average
Max

Among all subwoofers in our database with a max MSRP price of 500$, these are the 2 Powered Subwoofer models that can reach deeper bass levels than the Klipsch SPL-120's 24Hz:

  • OSD Nero DueVoce DualX8 with Low Frequency of 17 Hz (Compare w/ SPL-120)
  • SVS PB-1000 with Low Frequency of 19 Hz (Compare w/ SPL-120)

Low-Pass Crossover

Klipsch SPL-120 has a variable Low-pass filter (LFP) which lets you choose a frequency level between 40-120 Hz in order to block any frequencies above that point from reaching the amplifier.

Klipsch SPL-120 Back View
Klipsch SPL-120 Back View

Inputs and Outputs

  • PreampLevel Inputs: Stereo RCA/LFE
  • SpeakerLevel Inputs: No
  • SpeakerLevel Outputs: No
  • Wireless: No

Wireless Connection

Klipsch SPL-120 lets you make a wireless connection to your system with an optional adapter. Wireless connection helps to minimize the cables running on your floor.

Klipsch SPL-120 External Dimensions and Weight

Klipsch SPL-120 has external dimensions of (Height x Width x Depth) 17-11/16 x 14-3/4 x 21-1/4inch (450.0 x 375.0 x 540.0mm ).

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 SPL-120 is approximately 2025.0cm2 / 313.9inch2.

To get a better perspective on the real life size of Klipsch SPL-120, let's compare it with a standard size Compact Disc which has a diameter of 4.7inch (120mm).

Klipsch SPL-120 Real Life Body Size Comparison
Klipsch SPL-120 Speaker Size Compared to a Compact Disc

Here we place the Klipsch SPL-120 virtually next to a standard width amplifier and turntable on a media center to get a better idea about the size.

Klipsch SPL-120 placed next to a Media Stand
Klipsch SPL-120 Subwoofer next to a Media Stand

Find speakers that fit your shelf or alcove →

Weight

The Klipsch SPL-120 weighs 20.45kg / 45lbs. 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 SPL-120's weight compares with the average, max and min weights in its class.

Weight
All Subwoofer Speakers
Klipsch SPL-120
Min
Average
Median
Weight
Subwoofer Speakers under $500
Klipsch SPL-120
Min
Average
Max

How does the Klipsch SPL-120 compare to the Klipsch SPL-150?

One of the natural alternative to the Klipsch SPL-120 is the SPL-150 which is located one step higher in Klipsch's Powered Subwoofer selection.

Here is a scaled size comparison of these two speakers to give you an idea how their external dimensions compare:

Klipsch SPL-120 vs Klipsch SPL-150 Size Comparison - Front View
Comparison image of Klipsch SPL-120 and Klipsch SPL-150 Size and External Dimensions

Check the Detailed Comparison of Klipsch SPL-120 vs SPL-150 for more details.

Cabinet type and Materials

Klipsch SPL-120 has a Bass Reflex type cabinet. Ported subwoofers are generally accepted to be more suitable for home theatre systems whereas the sealed designs are preferred for music oriented systems.

Port Position

Klipsch SPL-120 is a front-firing port speaker, which gives you more flexibility compared to rear firing speakers when you need to place it close against a wall or other surfaces.

Does the Klipsch SPL-120 come with a Grille?

SPL-120 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.

Klipsch SPL-120  with Grille
Klipsch SPL-120 with Grille

What's in the Box of Klipsch SPL-120?

Here are the items that are included inside the box of SPL-120:
  • Powered sub
  • Grille
  • 6.5-feet AC power cord
  • User Manual
  • Important Safety Instructions
  • Warranty Information

Recommended Accessories

Here is a list of accessories that we think you may need for the Klipsch SPL-120.

  • 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.

Warranty

2 Years of parts warranty and 2 Years of labor warranty is generally provided by the manufacturer.

Klipsch SPL-120 Detailed Specifications

General
BrandKlipsch
Full Model NameKlipsch SPL-120
TypePowered Subwoofer
Release Date2018
Frequency Response24-125 Hz
Enclosure TypePorted
EnclosureBass Reflex
Firing DirectionFront
Port Positionfront
Amplifier & Driver
Power (RMS)300 watts
Power (Peak)600 watts
Woofer12-inch Cerametallic

Controls & Connections
Low-pass Crossover40-120 Hz
Phase ControlYes
WirelessOptional
Line-level InputsStereo RCA/LFE
Speaker-level InputsNo
Speaker-level OutputsNo
Physical
Dimensions (HxWxD)17-11/16" x 14-3/4" x 21-1/4" (450.0 x 375.0 x 540.0mm)
Weight20.45 kg (45 lbs)
GrilleYes
Mounting BracketNo
Parts Warranty2 Years
Labor Warranty2 Years
Klipsch SPL-120 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"
SVS PB-1000 Pro
Compare
17-260k Hz 12" 325 watts 18-13/16inch x 15inch x 20-15/16inch"
Frequently Asked Questions about Klipsch SPL-120

How low can the Klipsch SPL-120 go?

The Klipsch SPL-120 has a frequency response of 24-125 Hz. It reaches down to 24Hz, deep enough for the low end of most music and movie effects.

How much power does the Klipsch SPL-120 have?

The Klipsch SPL-120 has a built-in 300-watt RMS (600-watt peak) amplifier.

Is the Klipsch SPL-120 sealed or ported?

The Klipsch SPL-120 uses a Ported enclosure. Ported (bass-reflex) designs use a tuned vent to move more air, giving deeper, louder output for the same driver, which suits home theater.

What driver does the Klipsch SPL-120 use?

The Klipsch SPL-120 has a 12-inch Cerametallic driver.

Does the Klipsch SPL-120 have app control or room correction?

Yes. The Klipsch SPL-120 offers an adjustable low-pass crossover (40-120 Hz) and phase control, letting you dial the sub into your room and blend it with your speakers.

How do you connect the Klipsch SPL-120?

The Klipsch SPL-120 connects via line-level Stereo RCA/LFE inputs, and supports a optional wireless connection.

How big and heavy is the Klipsch SPL-120?

The Klipsch SPL-120 weighs 20.45kg / 45lbs and measures 17-11/16" x 14-3/4" x 21-1/4" (HxWxD).

How much does the Klipsch SPL-120 cost?

The Klipsch SPL-120 has a manufacturer's list price (MSRP) of $499.

Was this subwoofer review useful?
Tell us what is missing or wrong and we will fix it.
Thanks. Anything you would add?
Optional, and it goes straight to the person who maintains this page.
Thanks — noted.
LATEST BLOG POSTS

FiiO's EUR 269 AIR AMP Undercuts Every WiiM Amp, and Drops the One Thing They All Have
Yamaha WXA-70A: The Same 55 Watts as the WXA-50, at Twice the Price
Velodyne's See-Through MiniVee X: What the Acrylic Cabinet Costs You
Bluesound's New PULSE SUB: 350 Watts, Two 6.5in Drivers, and No Frequency Spec
Every Buchardt Speaker Is Now in Our Database, With Full Specs and Comparisons
KEF Speakers With the 12th Generation Uni-Q Driver: The Full List


Latest Powered Subwoofers
Bluesound PULSE SUB
Bluesound PULSE SUB
6.5-inch Woofer | | 350 watts
Emotiva Nostala FT12
Emotiva Nostala FT12
12-inch Woofer | 25-150 Hz | 800 watts
Revel Performa4 B140
Revel Performa4 B140
10-inch Woofer | 26-150 Hz | 750 watts
SVS 3000 Micro R Evolution
SVS 3000 Micro R Evolution
9-inch Woofer | 20-230 Hz | 1200 watts
MartinLogan Grotto 15
MartinLogan Grotto 15
15-inch Woofer | 20-120 Hz | 1000 watts
MartinLogan Grotto 12
MartinLogan Grotto 12
12-inch Woofer | 22-120 Hz | 1000 watts
MartinLogan Depth 215
MartinLogan Depth 215
15-inch Woofer | 18-120 Hz | 2200 watts
MartinLogan Depth 212
MartinLogan Depth 212
12-inch Woofer | 18-120 Hz | 1100 watts
DALI Sub V-16 F
DALI Sub V-16 F
16-inch Woofer | 19-200 Hz | 1500 watts
Kanto SUB6 v2
Kanto SUB6 v2
6-inch Woofer | 40-175 Hz | 100 watts


Most Popular Speakers
Klipsch Reference R-51M
Klipsch R-51M
2-way | 93 dB | 8 ohms
ELAC Debut 2.0 B6.2
ELAC Debut 2.0 B6.2
2-way | 87 dB | 6 ohms
Wharfedale Elysian 2
Wharfedale Elysian 2
3-way | 89 dB | 4 ohms
KEF Q150
KEF Q150
2-way | 86 dB | 8 ohms
Bowers & Wilkins 606 S2 Anniversary Edition
B&W 606 S2
2-way | 88 dB | 8 ohms
Klipsch Reference Premiere RP-500M
Klipsch RP-500M
2-way | 93 dB | 8 ohms
Wharfedale EVO5.1
Wharfedale EVO5.1
2-way | 87 dB | 4 ohms
Wharfedale EVO4.1
Wharfedale EVO4.1
2-way | 87 dB | 8 ohms
Wharfedale SUPER LINTON
Wharfedale SUPER LINTON
3-way | 90 dB | 6 ohms
Bowers & Wilkins 606
B&W 606
2-way | 88 dB | 8 ohms

Copyright © 2026 by SpeakerDecision
About Privacy Contact US Camera Decision