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Sumiko S.9

Sumiko S.9
alaScore 90

3 reviews

Sep, 2020

alaTest has collected and analyzed 3 reviews of Sumiko S.9. The average rating for this product is 4.0/5, compared to an average rating of 4.3/5 for other products in the same category for all reviews. Reviewers are impressed by the size. The design also gets good feedback. Comments are divided on the usability.

design, size

We analyzed user and expert ratings, product age and more factors. Compared to other products in the same category the Sumiko S.9 is awarded an overall alaScore™ of 90/100 = Excellent quality.

Review analysis

(Based on 3 reviews)

Expert Reviews  

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Expert review by : Tyler Stripko (

Sumiko S.9 Subwoofer Review


Sumiko has decided to enter the somewhat crowded subwoofer market with a new line of subwoofers.

Elegant design ; Excellent construction quality ; Very accurate, musical bass ; Good bass extension for the cabinet size ; Powerful enough for all but the largest rooms ; Amazing integration with main speakers ; Multiple setup options means...

Multiple setup options means installation and integration is a bit more difficult than other subwoofers ; Bass response starts to taper off around 30Hz (-3dB at 25Hz rating)

THE SUMIKO S.9 SUBWOOFER has an excellent design.

Sep, 2015

Expert review by : Brent Butterworth (

Sumiko S.9 Subwoofer Reviewed


Brent Butterworth reviews Sumiko's new $999 S.9 subwoofer, which features a 10-inch driver, a 10-inch passive radiator, a 350-watt RMS Class AB amp, and connection options that the audiophile will appreciate.

I almost cringe thinking about some of the reviews that this sub is going to get--you know, some guy sitting around in his underwear listening to his Steely Dan hi-res files through some exotic amp nobody has ever heard of, blabbering on and on about...

Jul, 2015