

A Harman Wave mode on the 30 taps the system’s full driver array to deliver room-filling sound.

Frequency Response
• Soundbar: 144 Hz to 20 kHz ±1.9 dB
• Subwoofer: 42 to 129 Hz ±3 dB
Bass output, subwoofer (CEA-2010 standard)
• Ultra-low bass (20-31.5 Hz) average: NA
20 Hz NA
25 Hz NA
31.5 Hz 96.9 dB
• Low bass (40-63 Hz) average: 109.8 dB
40 Hz 108.0 dB L
50 Hz 109.9 dB L
63 Hz 111.3 dB
The Harman Kardon SB30 soundbar's frequency response measurements are unbelievably good, at ±1.9 dB throughout its operating range. I can't remember testing even a conventional speaker that measured so well in this test. The bar's response goes low enough that there shouldn't be much of a "sonic hole" between the bar and the sub. The sub's output is the best of the bunch at 109.8 dB average in the low bass (40-63 Hz) region, and it has substantial output of 96.9 dB at 31.5 Hz. — B.B.
Price: $799
The Harman Soundbar 30 takes us out of the gin joints and into the speakeasies and clubs. It’s a bruiser, by far the widest bar here. Oddly, despite its comparatively high price, there’s no HDMI switching. Instead, you get one optical and one coaxial digital input, along with an RCA analog stereo input.
The money here seems to be in the drivers: There are seven 1-inch dome tweeters, each with its own 10-watt amp, and six 2-inch midranges powered by four 40-watt amps. The HK subwoofer has an 8-inch woofer driven by 100 watts.
The small, flat, credit-card-size remote, which has all the buttons you’d need, is more what I had in mind when I thought “remote control for soundbars.” There’s no display on the bar — the only one in this group without one. Instead, it has three multicolored LEDs that you read like a rainbow Morse code.
I had high hopes for the Soundbar 30. After all, it was the only bar here from an actual speaker company, and it had more drivers than many complete 5.1 systems. In basic Stereo mode, the 30 sounds okay, at least when compared with the rest of this group. There’s a bit too much treble, though, which adds a slight harshness to the high end of its frequency range. As a result, the cymbals and snare drum on Tom Waits’s “Please Call Me, Baby” sounded a bit too forward.
The Harman Kardon soundbar fared better with Billie Holiday’s “You Can’t Lose a Broken Heart,” sounding the best of the bunch by far on that track. The balance was decent, and the brass was the least harsh of the group.
With the Faces, cymbals sounded somewhat aggressive, with the bar exhibiting some sibilance. The sub’s bass wasn’t well defined, though it filled in the low end capably enough.
Unimpressed with the Soundbar 30 in vanilla-stereo mode, I started experimenting with its surround modes. With 13 drivers and 11 amplifiers, cool things should be possible There are three settings: Stereo, Virtual, and Harman Wave. Stereo uses the outer drivers in a traditional 2.1 setup. Virtual adds in the two driver pairs in the bar’s center to “simulate the reflected sounds that would be created by rear-channel speakers.” I didn’t hear a major improvement with it. However, the Harman Wave mode impressed me quite a bit. Using all the drivers and, presumably, a lot of processing, Harman Wave made the Soundbar 30 come alive. The soundstage increased dramatically. I wouldn’t go so far as to say I heard sounds behind me, but it was a reasonably convincing faux side-channel effect.
This is easily the best mode to listen to with the 30: room filling with a huge sound field, in a sort of electrostatic-speakers way. The sound quality in this mode largely made up for the bar’s still noticeable extra treble.
The 30 wasn’t particularly loud in any of its modes, though. At maximum volume, I found its output to be acceptable but certainly not raucous. (To be fair, I have a pretty big room.)
With John Carter, the Soundbar 30 fared the best of the bunch, performing slightly better than the Vizio (though both bars have their strengths and weaknesses). It sounded the most open, and the most like a real set of speakers. The treble harshness was still apparent, but the voluminous soundstage gave movie soundtracks a wider scope than the other soundbars (the Vizio sort of excluded).
One other oddity: The Harman Kardon Soundbar 30 cuts off the first second or two of each new CD track when a player is plugged into its optical or coaxial digital inputs (but not the analog input). So if you’re listening to a disc, you will lose the first second of each song. If you plan on listening to a lot of music with the Soundbar 30, this issue will end up being pretty annoying.
The Soundbar 30 delivers decent sound quality, and its Harman Wave surround mode creates a faux multispeaker effect that is quite cool. However, it is way too expensive for a soundbar that lacks HDMI switching. The sound was good overall, but it would need to be really good in my mind to justify the $800 price. For that same money, you could easily get a receiver with HDMI switching and a pair of decent bookshelf speakers (or even a small 5.1 sub/sat system) that would likely sound better, offer more features, and be easier to upgrade. A different product category, perhaps, but I feel that that’s the Soundbar 30’s competition given its $799 price.
Soundbar
(7) 1-in tweeters, (6) 2-in mid/woofers; 7 x 10 watts/6 x 40 watts; 3.94 x 45.69 x 3.125 in; 8.4 lb
Subwoofer
8-in woofer; power, 100 watts; 13.91 x 10.5 x 10.5 in; 19.2 lb










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Thank you for finally doing a review on some sound bars. I am moving into a house finally. I have been given the basement to do whatever with, but the living room needs to be clean. I immediately start looking into everything out there, which is daunting.
I had almost settled between the Harman or the YSP-2200 and then realized that my room acoustics were going to be pretty poor with the location of the television. That is when I decided I just wanted something that would sound decent for music and boost television listening levels. That is where the Vizio comes into play.
I am a big Vizio fan due to the bang for the buck I have gotten with their TVs. I had heard recommendations of this sound bar but nothing comparing it to several others like you have done here.
One question I have, is there any thoughts on reviewing the sound bars from Polk?
So, which one is "left standing" ??
@sofast1 — it was a close one, since they all have their strengths, but the Vizio provided the most bang for the buck, and gets our Certified+Recommended stamp (see the second page of this piece)
Thanks, I was looking for the "winner" and skimmed to the end. Sadly, most readers will miss the most important part; " As with all soundbars, the fidelity isn’t as good as what you’d get from a decent pair of bookshelf speakers". Compare any of these to something like the Energy Take 5. Convenience is now more important than performance. Bummer.
Nice article. I wish I had seen it before I bought the LG soundbar. The 3D processing sometimes sounds "thin" to me. Are the frequency response graphs included in the article measured in stereo mode or in 3D mode? Were you 1 meter away?
@nyquist: All measurements were done in stereo mode, with any surround virtualizers deactivated. Because virtualizers take advantage of head-related transfer function (HRTF), the response of the signals is designed to sum inside your head with contributions from both ears, not at the capsule of a single measurement mic. So if you measure them with a mic, you get a lot of frequency response anomalies that you don't hear.
All measurements were done at 2 meters, because the bars are long and I wanted to capture the diffraction effects of the entire bar. CEA-2010 figures were scaled up +6 dB to provide the equivalent of 1-meter measurements.
Full details on the measurements, plus full CEA-2010 numbers, have been added.
Got an email from an engineer at LG that they've fixed the stereo-swapping problem. So that shouldn't be an issue.