When setting up a home audio system, adding a subwoofer can transform your listening experience by reproducing the low frequencies that regular speakers often miss. Today, we're comparing two popular options from Klipsch: the entry-level R-8SW ($250) and the more powerful SPL-120 ($600).
Before diving into the specifics, let's understand what makes powered subwoofers special. Unlike passive subwoofers that need an external amplifier, powered subwoofers have built-in amplification. This makes them easier to set up and ensures the amplifier is perfectly matched to the speaker.
Both these Klipsch models are powered subwoofers, but they target different users and room sizes. The R-8SW was released in 2018 as part of Klipsch's Reference line, while the SPL-120 launched in 2019 as a more premium offering.
The most obvious difference between these models is their size and power handling. The R-8SW uses an 8-inch driver (the cone that produces sound) powered by a 50-watt RMS amplifier. RMS, or Root Mean Square, represents the continuous power the amplifier can deliver, while peak power (150 watts for the R-8SW) shows its maximum short-term capability.
In contrast, the SPL-120 packs a much larger 12-inch driver and a significantly more powerful 300-watt RMS amplifier (600 watts peak). This extra power and larger driver size translate to several real-world benefits:
Room size is crucial when choosing a subwoofer. The R-8SW works best in smaller rooms up to about 150 square feet. Its compact size (13.25" x 11.75" x 11.75") makes it easy to place discretely in tight spaces.
The SPL-120 is designed for medium to large rooms up to 400 square feet. Its larger cabinet (17.75" x 14.7" x 19.9") requires more space but delivers the extra output needed to fill bigger rooms with clean, powerful bass.
Frequency response tells us the range of bass notes a subwoofer can reproduce. The R-8SW handles 38-120 Hz, while the SPL-120 extends down to 24 Hz. This 14 Hz difference might seem small, but it's significant:
In practice, this means the SPL-120 can reproduce the deepest rumbles in movie soundtracks and the lowest pipe organ notes in classical music. The R-8SW, while missing these ultra-low frequencies, still delivers satisfying bass for most music and movies.
The SPL-120 showcases several technological advantages:
The R-8SW uses more basic but still effective technology:
For home theater use, the differences become more pronounced. The SPL-120's additional power and deeper bass extension make it significantly more capable for movie soundtracks. When a movie scene includes an explosion or earthquake, you'll not just hear but feel the difference.
The R-8SW can still enhance a home theater setup, particularly in smaller rooms. It adds welcome weight to action scenes and music, but won't deliver the same physical impact as its larger sibling.
At $250, the R-8SW represents excellent value for:
At $600, the SPL-120 justifies its premium for:
Choose the R-8SW if:
Choose the SPL-120 if:
Since their release, both models have held up well against newer competitors. The SPL-120's Class D amplification and Cerametallic woofer technology remain current with today's standards. The R-8SW's simpler design focuses on proven technology rather than cutting-edge features.
Recent trends in subwoofer design have focused on room correction and wireless connectivity. While the SPL-120 offers wireless capability through an optional adapter, neither model includes built-in room correction - a feature now common in some competing brands.
Both subwoofers excel in their intended use cases. The R-8SW delivers remarkable performance for its size and price, making it an excellent choice for smaller rooms and budgets. The SPL-120 offers significantly more capability and refinement, justifying its higher price for those seeking premium performance.
Remember, the best subwoofer isn't always the most powerful one - it's the one that matches your room size, listening preferences, and budget. Either of these Klipsch models could be the perfect choice, depending on your specific needs.
Klipsch Reference R-8SW ($250) | Klipsch SPL-120 ($600) |
---|---|
Driver Size - Larger drivers generally produce deeper bass and higher output | |
8" (suitable for small rooms) | 12" (ideal for medium/large rooms) |
Amplifier Power - Determines maximum volume and dynamic capability | |
50W RMS/150W Peak (sufficient for casual listening) | 300W RMS/600W Peak (plenty of headroom for movies) |
Frequency Response - Lower numbers mean deeper bass you can feel | |
38-120 Hz (misses deepest movie effects) | 24-125 Hz (captures all bass frequencies) |
Cabinet Design - Affects placement flexibility and bass character | |
Down-firing port (more placement options) | Front-firing slot port (better overall performance) |
Room Size Compatibility - Critical for proper bass performance | |
Up to 150 sq ft (small rooms only) | Up to 400 sq ft (works in most spaces) |
Connectivity Options - Affects setup flexibility | |
Basic RCA/LFE inputs only | RCA/LFE inputs plus optional wireless adapter |
Cabinet Size - Consider your available space | |
13.25" x 11.75" x 11.75" (compact) | 17.75" x 14.7" x 19.9" (requires planning) |
Weight - Impacts stability and moving difficulty | |
15 lbs (easy one-person setup) | 45 lbs (may need help moving) |
Woofer Material - Better materials mean cleaner bass | |
Injection Molded Graphite (good) | Cerametallic (excellent, less distortion) |
The Klipsch Reference R-8SW ($250) is ideal for small home theater rooms up to 150 square feet. While the SPL-120 ($600) offers more power, the R-8SW provides sufficient bass impact for compact spaces without overwhelming the room.
We've done our best to create useful and informative comparisons to help you decide what product to buy. Our research uses advanced automated methods to create this comparison and perfection is not possible - please contact us for corrections or questions. These are the sites we've researched in the creation of this article: crutchfield.com - klipsch.com - audioadvisor.com - avsforum.com - homecinemachoice.com - kbaudio.co.uk - crutchfield.com - audiolab.com - newegg.com - richersounds.com - klipsch.com - baillios.com - hdgear.highdefdigest.com - crutchfield.com - bestbuy.com - audioadvisor.com - klipsch.com - support.klipsch.com - thewireszone.com - baillios.com - audiomods.datsunzgarage.us - f072605def1c9a5ef179-a0bc3fbf1884fc0965506ae2b946e1cd.ssl.cf2.rackcdn.com - digitalcinema.com.au