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Sunfire HRS-12 Powered Subwoofer Review

by March 24, 2008
Sunfire HRS-12 Powered Subwoofer

Sunfire HRS-12 Powered Subwoofer

  • Product Name: HRS-12
  • Manufacturer: Sunfire Corporation
  • Performance Rating: StarStarStarStarhalf-star
  • Value Rating: StarStarStarStarStar
  • Review Date: March 24, 2008 11:45
  • MSRP: $ 899
  • Buy Now

Enclosure: Front firing sealed enclosure

Amplifier Type: Proprietary Tracking Down Converter Design

Amplifier Power (RMS): 1000 Watts

Power Consumption (avg./peak/stand by):  600 W/2000 W/16 W

Bass Extension (-3dB): 18 Hz

Woofer: 12" polymer treated paper cone

Preamp gain:  Defeat to +15 dB

Crossover Frequency: 30 Hz to 100 Hz

Crossover type: Continuous variable low pass filter with bypass

Crossover Slope: -24db/octave

Phase: Continuous variable 0 to 180 degrees

Dimensions: (HxWxD): 13.5" x 13.5" x 13.5"

Weight (lbs): 38 lbs.


  • A big subwoofer in a little subwoofer’s body
  • Plenty of power, output, and depth
  • Attractive finish and/or small size help with WAF


  • Soft clipping circuitry does kick in at times


To get good monster bass, usually some fairly mongo subs are required. It is rare to find a sub this small that can not only provide copious bass output, but also can provide deep and accurate bass output as well. While not cheap by some standards, the HRS-12 subwoofers do an excellent job balancing the design and providing outstanding performance without skyrocketing the price. . Considering that the HRS-12s can easily provide better than two thirds of the performance of subs like the Fathoms at a mere one third of the price, the HRS-12s are a well engineered, high value product that represents a very good bargain for anyone looking for extreme levels of bass performance at less than extreme prices.
About the author:

Professionally, David engineers building structures. He is also a musician and audio enthusiast. David gives his perspective about loudspeakers and complex audio topics from his mechanical engineering and HAA Certified Level I training.

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Recent Forum Posts:

azimuth posts on January 28, 2011 09:42
I would be very interested about the frequency response of this sub.
I didn't find anywhere a FR graph it seems weird that anybody measured it.
rmk posts on April 14, 2008 12:05
HRS-12 impressions

I had the HRS-12 in my system for about a week. I had limited time to actually play with it but the HRS left a very favorable impression.

At first I ran it with my dual F113’s placed front right (the Fathoms are on the left side wall) and felt it blended very well with the Fathoms. Then, I turned the Fathoms off and ran it alone and then did a brief A/B with a single F113. It really is a very nice little sub for the money. Build quality and finish are good and it plays clean and loud down to the low 20Hz region. It handled music and movies very well clean output that was almost Fathom like. At its street price, two or even four of these would make for a very nice HT implementation and the small form factor is a big plus for flexible positioning and hence bass optimization.

I have returned this “demo” model to my dealer but I am thinking of going to quad subs in my HT room and this little sub (it makes the small Fathom’s look huge) is on the short list for that duty.

One side note, the packaging is incredible … triple boxed with a velvet sock cover on the sub. Nice job Sunfire!
sbeveraggi posts on March 29, 2008 18:34
Do you think this sub will blend well with satellites crossed over at 100hz?
Will 1 HRS-12 be enough to fill a 3000 cubic feet room?
haraldo posts on March 28, 2008 19:03
And the weather
Aaaaaa sorry, you already stated that
gene posts on March 28, 2008 18:53
I'm considering going all the way from Norway to CE state of the Union, do you think, that'll be worth it?

Wow you would probably qualify as the longest traveler to our event in its history if you come! Its definately worth and I am not just saying that because I am hosting it

  • 2 days of great product demos
  • Debut of new products from Yamaha, EMP, Pioneer, Emotiva and others
  • Great food! (breakfast for 2 days, formal dining event)
  • Costume party, dance and entertainment
  • free educational seminars
  • chance to hang with Audioholics staff
  • Disney access
  • tons of free party swag and product giveaways
  • a nice week of warm weather

Check out our video from last years event which was only about 1/2 the size of this one:
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