Subwoofer Reviews

Studio 230 Speaker System
Performance
Build Quality
Value

Studio SUB 250P Subwoofer
Performance
Features
Build Quality
Value

AT A GLANCE
Plus
Efficient, high output
Vocal clarity and defined soundfield
Affordable price
Minus
Thin, accentuated top end
Best at low-to-moderate volumes

THE VERDICT
Although their bright voicing may not be for everyone, the JBL Studio 2 speakers combine high efficiency with excellent detail retrieval.

What if the solution to room-interaction problems resided in your loudspeakers? Wouldn’t that be a great alternative to the ills of receiver-based room correction systems? Those are some potentially interesting questions posed by JBL’s Studio 2 series.

For starters, who needs room correction anyway? Well, when it’s hard to catch the dialogue, and imaging smears all over the place, the room correction program in your A/V receiver can mitigate those problems (depending on the receiver and the room). But quite often, it also introduces new artifacts and errors. For my own part, in my own room, I find that many room correction systems thin out the overall tonal balance and induce fatigue. That’s why some audiophiles shun room correction and choose to live with the acoustic character of their room, for better or worse—usually both.

Performance
Features
Build Quality
Value

AT A GLANCE
Plus
Powerful, deep bass from a compact 10-inch box Elegant visual design Flexible, fully implemented two-way crossover
Minus
Expensive

THE VERDICT
A small, or at least smaller, subwoofer that goes truly low, loud, and clean—and looks sharp doing it.

What can you say about a subwoofer? It goes this low, that loud. It has these jacks, knobs, and features and is yea big and costs yon dollars. And really, that’s about it; almost all other discussion is so much verbiage.

Response “flatness” from a speaker covering barely two octaves is of little consideration unless a sub is horribly peaky (a few are), especially since room effects invariably dwarf such variations anyway.

JL Audio is best known for its car audio products. But when it first showed its line of home subwoofers at a CEDIA Expo a couple of years back everyone was blown away—in more ways than one.

Performance
Features
Build Quality
Value

AT A GLANCE
Plus
Enclosure designed for walls with standard 2 x 4 construction
13.5-inch low-profile driver
1,000-watt external amp with Automatic Room Optimization
Minus
Retrofit install can be difficult
Expensive

THE VERDICT
This subwoofer system does the seemingly impossible in an impossibly seeming way by hiding an amazingly shallow, high-excursion 13.5-inch woofer, along with the 70-inch-tall cabinet it requires, inside a wall having standard 2 x 4 construction, with only a driver-hiding grille screen as evidence—and it does this surprising feat without causing excessive wall vibrations. Even better, it does all that while performing like a top-end in-room sub.

If I needed additional proof of how much Rob Sabin, our esteemed editor-in-chief (and part-time male stripper for the visually impaired) dislikes me, this would be it. He asks me the other day if I’d want to review another JL Audio subwoofer, one similar to the company’s ginormous Fathom f212, which I reviewed in 2012. I have fond memories of, bruises from, and a partial hernia caused by that 220-pound behemoth.

Q Series Q350 Speaker System
Performance
Build Quality
Value

The Kube 12b Subwoofer
Performance
Features
Build Quality
Value

AT A GLANCE
Plus
Atmos add-ons
Coincident Uni-Q drivers
Sub has three placement EQ modes
Minus
Grilles not included
Not as dressy as other KEF products

THE VERDICT
KEF’s Q series combined with its new Kube subwoofer line brings the trademark Uni-Q driver array and a potent bottom end to a lower price point, with reliable performance and an Atmos add-on option.

One of the headlines I considered for this review was “What Becomes a Legend Most.” It’s a poignant song from Lou Reed’s New Sensations. Before that, it was an advertising slogan that sold mink coats in ads featuring Judy Garland, Lauren Bacall, and Marlene Dietrich, among others. Somehow, it fits KEF, the British speaker manufacturer responsible for numerous driver-related innovations, including the Uni-Q coincident array. KEF’s Muon and Blade towers have the fragrance of luxury about them.

KEF R900 Speaker System
Performance
Build Quality
Value

KEF R400b Subwoofer
Performance
Features
Build Quality
Value

If you’ve been passionate about audio for more than a few years, or can name five loudspeaker companies with names that don’t rhyme with rose and begin with a B, you’ve certainly heard of KEF. In the late 1980s, KEF introduced a new concentric driver that placed the tweeter in the throat of the midrange cone. Dubbed Uni-Q, the design has been continually refined for over 20 years and remains the centerpiece of most KEF loudspeakers.

KEF today is part of a Hong Kong conglomerate...