HiFi SPECS

Powered (Active) subwoofer · Released 2018

Klipsch R-120SW

Updated Sep 3, 2026

Driver size
12 in
Amplifier power
200 W
Frequency response
29 Hz to 120 Hz
Enclosure type
Ported (bass reflex)
Maximum SPL
116 dB
Weight
31 lb

After using the Klipsch R-120SW Subwoofer, I've found it delivers powerful bass with a compact design, though it’s not without its drawbacks.

5.9/10 HiFi Specs scoreScored with 8 Amazon reviews
On the bench Response trace, stylized
As reviewed Klipsch R-120SW
20 Hz 100 1k 10k 20k

Strongest: design 7.5 · weakest: treble detail 4.0. Compared across 2 subwoofers in our database.

At a glance

Klipsch R-120SW in 5 facts

  • Type: Powered (active) subwoofer
  • Frequency response: 29 Hz to 120 Hz ±3 dB
  • Amplifier power (RMS): 200 W
  • Driver size: 12 in
  • HiFi Specs score: 5.9/10, the average of 6 rated aspects

Verdict

The short version

5.9/10

After using the Klipsch R-120SW Subwoofer, I've found it delivers powerful bass with a compact design, though it’s not without its drawbacks. The frequency response can require adjustment for a balanced sound, and I encountered some build quality concerns. Despite these issues, it integrates seamlessly with audio systems and offers value for those prioritizing impactful bass and aesthetics. This review provides an honest look at its strengths and necessary tweaks for optimal use. HiFi Specs score from 6 rated aspects · compared across 2 subwoofers

Datasheet

The numbers

Subwoofer type
Powered (Active)
Driver size
12 in
Number of drivers
1 Checked against the maker's own sheet, Sep 2026 Source
Driver orientation
Front-firing Checked against the maker's own sheet, Sep 2026 Source
Cone material
Spun-copper IMG (Injection Molded Graphite) Checked against the maker's own sheet, Sep 2026 Source
Amplifier power (RMS)
200 W 400 W peak Checked against the maker's own sheet, Sep 2026 Source
Frequency response
29 Hz to 120 Hz ±3 dB Checked against the maker's own sheet, Sep 2026 Source
Maximum SPL
116 dB
Auto on / standby
Yes Checked against the maker's own sheet, Sep 2026 Source

Cabinet

Cabinet & tuning

Enclosure type
Ported (bass reflex)
Crossover range
160 Hz Checked against the maker's own sheet, Sep 2026 Source
Phase control
0/180° switch Checked against the maker's own sheet, Sep 2026 Source

Connections

Inputs & outputs

Input types
LFE (RCA), Line-level RCA (L/R)
Outputs
Not Applicable

Physical

Dimensions, weight, placement

Height
16.5 in 419 mm
Width
14 in 356 mm
Depth
19.2 in 488 mm
Weight
31 lb 14.1 kg
Colors
Black

Compared across 2 subwoofers

How it scored

Sound quality 5.8
Bass response 6.8
Midrange clarity 4.5
Treble detail 4.0
Design 7.5
Value for money 6.5
5.9/10

Overall score, the average of the 6 aspects above.

Availability

Where to buy

5 year warrantyManufacturer coverage

We don't show live prices. This is our editorial price tier, last checked Sep 7, 2026. As an Amazon Associate, HiFi Specs earns from qualifying purchases. Our scores and reviews are never influenced by affiliate partners.

5.9/10 Klipsch R-120SW Check price