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RBH Sound SX-12 Subwoofer Review with Measurements

by October 31, 2006
  • Product Name: SX-12 Subwoofer
  • Manufacturer: RBH Sound
  • Performance Rating: StarStarStarhalf-star
  • Value Rating: StarStarStarhalf-star
  • Review Date: October 31, 2006 08:25
  • MSRP: $ 1,099
  • Buy Now
  • 12” forward firing driver
  • Down firing, flared and dimpled 4” port
  • Amplifier: 350 watt
  • Low Pass Crossover: Variable 40-150Hz
  • Frequency Response: 27-150Hz +/-3dB
  • Finishes: A large selection of high quality veneers (Review unit was black ebony)
  • Dimensions (H/W/D): 19.625” x 17.7” x 21.125”
  • Weight: 53 lbs.
  • Warranty: 5 years (Driver and cabinet) / 1 year (Electronics)

Pros

  • Nice aesthetics
  • Simple set-up and integration
  • "Bulletproof" design
  • Very Musical

Cons

  • Limited ultra-low frequency extension

 

RBH Sound SX-12 Subwoofer Video Review

 

RBH Sound SX-12 Video Review

 

Continue to the next page for our full written report with measurements of the RBH Sound SX-12 Subwoofer.

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Attached Files

Recent Forum Posts:

Ricci posts on November 06, 2011 13:02
kevon27, post: 839829
A slight off topic question. I see that the RBH sub has some high THD ratings at 25hz and below. My question is, what does high THD sound like? Without measurement tools, can the human ear easily detect the distortion.

This is debate-able. Reason being is that the distortion is very high and on top of that the actual output level of the fundamental is very low. But the output is pretty much all distortion and very little useful output anyway, so the distortion may not matter much. The output is essentially not of useful level to begin with so it really doesn't matter what the distortion amount is. All resonant systems behave like this below their pass band not just the RBH. In other words a vented system operated below tuning. Lower distortion is of course better but if comparing to another subwoofer and neither have useful output where comparing the distortion to begin with it is moot. For the RBH SX-12 I surely wouldn't worry much about anything much below 25Hz. It's just not designed to be effective there.
GranteedEV posts on November 06, 2011 11:59
Bghead8che, post: 839359
For that amount of money you could get an SVS, HSU, Rythmik, etc that would easily give you much better performance. I can't see why anyone would want to pay $1050 for a sub that underperforms.

Here's a few reasons:

- Many people aren't comfortable purchasing online
- Custom Installers can set things up for many people
- CI/ B&M Dealers can sometimes more effectively do repairs / warranty issues with shorter lead times. It's often just a case of ordering the replacement part and swapping it for you, rather than sending the entire speaker back and forth and the associated shipping delays/costs.
- Many people think every subwoofer has different sound quality, so they think subjective auditioning is meaningful, even if it's in a different room, a different calibration, etc.
- Many people just buy the matching brand of subwoofer to their main speakers
- Many people can't accept the sheer size of vented ID stuff in their rooms.

It's a business model that works effectively for many sub manufacturers. Of course, all of the above reasons aren't acceptable to us

I think the RBH sub isn't poorly designed. It just isn't up to OUR expectations at the price point. One such expectation for me, is to have a vent tuning below 20hz, even if there is some loss in max output as a consequence.
kevon27 posts on November 06, 2011 10:45
A slight off topic question. I see that the RBH sub has some high THD ratings at 25hz and below. My question is, what does high THD sound like? Without measurement tools, can the human ear easily detect the distortion.
haraldo posts on November 04, 2011 15:26
MinusTheBear, post: 839431
The build quality on the Axiom sub cabinet is as budget as you can get. It just looks like a box to me? This is their EP400 which costs over grand.


3db posts on November 04, 2011 12:43
shadyJ, post: 839461
The VTF2 costs less than that, you must be thinking of the VTF3. The VTF2 is half the price of the RBH SX-12, $549 before shipping.

That price includes shipping/duty up to Canada.
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