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More About Cabinet Bracing & Reducing Resonance Amplitude I spoke a bit about this topic with David Waratuke (our resident Structural Engineer) and Mark Sanfilipo (our Loudspeaker Guru). Both are degreed engineers. David actually designs buildings for a living and knows full well that you...

No way of determining that by just looking at the pics. I think the 800D is a fine piece of engineering but it goes against all the principles that Axiom preaches so what do I know? :confused: In all seriousness, basic mechanics is when you add more bracing, you raise the resonance frequency...

Nice job! Better not show Axiom that cabinet though else they will tell you it caused more audible distortion with the bracing :) Perhaps the RBH cabinet weighs 200lbs without the drivers. I don't recall but we shall see.

no please post it here if you can. Update, I found it: October 2011 All I can say is WOW. More fun tomorrow on this :)

The RBH cabinet construction goes well beyond anything that Revel is doing which doesn't imply its necessarily audibly better. The RBH approach is borderline insane IMO. The sub alone weighs in at over 200lbs. We shall see if all the bracing paid off. I loath the idea of moving those boxes...

Nice job on the measurement man you must have a very cooperative room. I suggest reducing the vertical dynamic range of your measurement to 40dB and also limiting the x-axis to where the sweep stops. Also you should measure at multiple seats and not just the money seat. Did you compare the...

made in China at its finest!

Funny you must have a crystal ball. I am working on this as we speak. Josh has tabulated all of his test data in Excel so anyone can download it once I post it. Paul's data won't be in it since Josh only wants his test data tabulated but I may supplement in the report for those that want to...

Bingo you converted Paul's data to 2 meter RMS which is how Josh reports all his test data. Even co-locating 2 HSU VTF-15H subs wouldn't match the output of one PB13-U below 30Hz. I usually NEVER recommend co-locating subs as you lose the benefits of smoothing out room modes for just gaining...

You get what you pay for. The drivers SVS use in their Ultra subs are far better engineered units and also cost ALOT more to produce. The Sledge amps in the SVS are more powerful and more costly. The build quality is better, aesthetics, etc. It's not all just about output, which BTW the SVS...

If you allow at least 2-3 inches you should be fine. If the bass is too boomy, just plug em.

If you plan on placing the RBH bookshelf speakers on a wall, realize they are rear ported. You will likely want to plug the ports in that case which will limit the bass output a bit as a result. These speakers really would work best on stands but I managed to integrate the Decimo version on a...

I don't believe this person is a shill. I am in constant contact with the folks at SVS, most notably Ed Mullen and they are all stand up people. SVS is not the same company it was 5-6 years ago IMO. Seems to me this is an over enthusiastic buyer that just happened to discover our forum...

While they are using the same amp for the single and dual subwoofer models, keep in mind the dual design halves the amp impedance so it will produce more power. They don't really specify into what impedance load the amp is rated to 250 watts. Doubling surface area (2 drivers) and increasing box...

While the W30s are a nice on-wall speaker, they aren't even in the league of an MC bookshelf speaker from RBH let alone the SX-R or Decimo products. Yes there is a huge difference in terms of imaging, clarity most notably in the top octaves and depth of soundstage. The WM-30s are competitive...

It usually does provided what it held to be true can be unequivocally proven.

Yea I felt the same way initially but I know EMP's thinking. Give the most output possible and allow room gain to kick in below 30Hz. It's a valid approach, especially for budget minded folks. Plus its costly to make a cabinet look nice so that is a factor in price. You're not gonna beat HSU...

I am scheduling Josh a review of the new 1010 sub and I will likely cover the Center and on-wall speakers sometime down the road.

The 35Hz spec is wrong according to my contact at EMP. I believe they recently updated that on their website. It should be 30Hz range. The dual drivers likely result in more output above 40Hz than the HSU so its a trade off of extension vs SPL output. But you are also getting more...

Yep and check out their new sub! EMP Tek ES1010i Subwoofer and on-wall surround