Axiom Home Page Forums General Discussion Home Theater EP350 Opinions

18hz @ -9db means the frequency is being played 9db lower than the reference level and at -9 down you wouldn't hear it much in relation to the other frequencies, but you will still fell it. Anything below 20hz is said to be subsonic, you don't hear it, you feel it.

The Hsu you are looking at would still have problems with 8hz as well, to get that low with any sort of power and stay clean(no distortion)you now need to be looking at the upper echelon of subs. Even my PB13 - Ultra in 10hz mode is down considerably at 10hz, about 12db IIRC.

This is where all those reviews get Axiom into trouble as they may not play as low but as I said, unless A/B comparing the lower frequency response wasn't missed, at least that has been my experience.

OK, thanks. I thought he was that the Axiom couldn't really handle the 18Hz.

80 hz and below is when freq's become non directional. Some people "think" they can determine the location.

If you are willing to spend over 700 for the 350 why not look at the Hsu Vtf 3MK3. As far as not getting the Stf 3 to blend in I would have chalk that up to positioning. I have the Stf 3 in a music set up with a set of M80s and find it blends in and sounds fantastic.

Has anyone ever seen a graph or measurement of the EP350? I really would like to know if this thing can actually handle 18Hz or if it’s actually a 28Hz sub.

You're right Jason, I was thinking in audible terms. I really don't know how much difference in 'feel' 9db would make.

The -3db point is still pretty high, 28Hz. Again, I don't know how much sound there is in music or movies between 20 and 28Hz.

In the end, I guess I have to compare for myself to see what difference it makes.

These waterfall graphs are why I'm looking for a sub that can reach 20Hz - 18Hz.

http://www.avsforum.com/avs-vb/showthread.php?t=755493

Interesting. I have never looked at waterfall graphs before. So most of the LFE is in the 30-60Hz range with stuff pushing down to 18-20Hz and very occasionally lower.

I have not seen any graphs of the EP350. I too am curious to know what they would look like.

Which is why being able to play below 20hz is not that critical and not really missed. In my A/B testing I could tell which subs went lower but I also never felt I was really missing anything with the higher tuned subs.

The PB12-NSD I have here plays down in to the teens just like the PB13, but the driver size, box size, amp all play a part in how each sub sounds. The PB13 has a more airy, encompassing sound to it compared to the PB12. The EP600 has an even more encompassing sound to it than the PB13. I am quite certain the PB13 reaches lower than the EP600 but it isn't missed when listening to the EP600. These are the types of things graphs are unable to show.

Grrr! Why is this so hard?! I cannot seem to choose between the EP350 and the Hsu.

Someone tell me something awful about the Axiom!