Klipsch SPL-150SW Subwoofer Review [Best Sound Quality?]

If you’re after a new subwoofer, you can’t go too far wrong with a Klipsch. They’ve been creating excellent quality pieces for a long old time and know a thing or two about what’s needed for epic bass. We looked at the best subwoofer from the Klipsch range and found the Klipsch SPL-150SW Subwoofer to have the best overall sound quality. That’s a pretty big claim to make, but it’s clear to see why.

If you’re still unsure whether this is the best Klipsch subwoofer for you, carry on reading and we’ll go into more detail about each one and help you decide which is the ideal pick for your home audio setup.

Let’s get into it and find out more about the SPL-150SW.

Klipsch SPL-150SW Subwoofer Review

Klipsch SPL-150SW Subwoofer Review

Klipsch SPL-150SW Subwoofer

Klipsch SPL-150SW Subwoofer
Image source: Klipsch

The Klipsch SPL-150SW Powered Subwoofer is a 15-inch sub with an ebony finish enclosure. It’s a powerful sub that reproduces signals as close to the original quality as possible with deep bass. 

With minimal distortion, it’s the ideal choice for home theatre systems. It can be paired with other speakers from the same brand or other companies for a holistic home theatre experience. It’s the biggest subwoofer in the SPL series. 


WOOFER 15″ (38.1 cm) long-throw copper spun cerametallic, front-firing woofer
INPUTS L/R line-level/LFE RCA jacks, Wireless WA-2 Port 
HEIGHT 21.5″ / 54.61 cm
WIDTH 19.5″ / 49.53 cm 
DEPTH 22.3″ / 56.64 cm
WEIGHT 75.4 lbs / 34.2 kg
FINISH Ebony Vinyl

Key Features

  • Maximum output levels producing high-quality sound 
  • High-efficiency all-digital Class D amplifier 
  • Front-firing slot port with internal flare technology
  • Flexible control options
  • Both wired and wireless inputs that can be used simultaneously
  • Half Watt standby mode for energy efficiency
  • Shock absorbing feet 
  • Ebony finish on MDF enclosure that’s scratch-resistant

The SPL series subs are bigger and better than the R series subs and the SPL-150SW is the biggest of them all. In other words, this is what you need if you’re looking for an impactful bass. This is all thanks to its large 15-inch driver and spun-copper front-firing Cerametallic woofers. These proprietary Cerametallic woofers have low weight, allowing them little distortion and cone breakup. 

The Class D digital amplifier has an analog preamp design. As a result, it retains quality of the original signal, reproducing a much cleaner sound than your average subwoofers and speakers. 

It offers more control for audiophiles who don’t settle for anything less than perfect. The Low Pass Crossover and Variable Phase controls allow easy tuning to your relative room setting and audio needs. You can easily use them with home theater receivers with line-level/LFE RCA inputs. But you can also use the wireless input a the same time as RCA. 

The body of the subwoofer speaker is made of MDF with a beautiful scratch-resistant ebony finish. On the bottom, it has rubber feet that absorb shock, so the sub doesn’t move from a position even when at the highest sound level. 

The steel grille posts and woven grille add a touch of luxury. It will easily fit into the aesthetics of any modern home theater room. 


  • High output
  • Placement flexibility
  • Durable and sturdy construction
  • Low distortion even on very low frequencies


  • Too big for small spaces
  • Pricey