Previosuly I asked the below question:
Originally Posted by MG428
I will really appreciate your comments regarding the below questions:
First off, I must admit I am quite a newbie when it comes to these types of issues. Sorry in advance for my lack of knowledge. I might be mixing concepts and products that may preclude you from giving a definitive answer. If that is the case, I don’t require a definite answer-- if you think that one product/configuration would more likely outperform the other in most respects, then that would be sufficient for me.
I have read many posts in various forums which state that the more subwoofers you get, the better performance you will achieve. Indeed 2 small sized subs are recommended instead of 1 bigger sub. These posts give similar examples like this: Two subs with 8 inch driver would perform better than only one sub with 10 inch driver.
My questions are about something else (though I will link them to the above statement):
1) Since Bravus subs include dual drivers, when I buy a Bravus subwoofer, say 8D, shall I consider this as if I am buying 2 separate subwoofers each including an 8 inch woofer, say two STF-1 subs from HSU? Would such configuration serve the purpose mentioned above? Or would I always need two separate subs for that regardless of how many woofers they include?
2) Would only one 8D outperform or at least be on par with HSU’s subwoofers that include a 10 inch woofer (STF-2 or even VTF-1) due to the fact that 8D includes dual woofers?
3) If your answers to the above questions are “No”, then what is the significance of having dual woofers in a sub?
4) Has anyone tried 2 Bravus subwoofers together (preferably 8Ds)? How do you find the performance difference between one vs. two of them together?
I am asking these questions because I have the following configuration and I may graduate to a Bravus subwoofer(s):
6 5B speakers
1 5C for center
1 HSU STF-2
The size of the room in which I use my speakers is not certain yet as I will move to an apartment that I have not determined yet. But I am quite impatient. And I know I can order 2 8Ds and try them out and return them for free within 30 days. Tough I thought that I require your initial thoughts, as I am fairly unknowledgeable about these kinds of stuff.
Thanks in advance for your time and attention.
And a forumite replied as follows:
Originally Posted by || Vitty ||
Here is the best answer I can give you.
1) While the bravus 8D does indeed have dual woofers it is not the same as buying two separate subwoofers. Reason being is that you can't physically separate the two. The reason you would buy two separate woofers would be to set them in two different locations in your room to more evenly spread out the bass. If you are in an apartment then two separate subwoofers wouldn't be needed in my opinion as you will get a good spread of bass frequencies with any Bravus.
2) Though I have not heard the HSU you reference I would have to assume the bass from an 8D would at least be on par with a single 10" woofer.
3) The significance of dual drivers in a single sub is that you will get the performance of a larger sub in a much smaller package. Thus 2 8" drivers would sound like a 10" driver and save you much space.
4) I have not tried two Bravus subs together. I do have a 12D though. I live in a townhouse and have the thing set to -10 on the sub and just over midway on my receiver. The thing POUNDS! I'm sure the neighbors are pleased with my purchase haha. You can get a 12D for the cost of 2 8D's if you are willing to buy open box or B stock. Mine has a very small scratch on the rear of the cabinet and I got it for a SUPER deal! It would fill any apartment with more bass than you would ever need and then some.
Now I am a bit confused with regard to his reply to the 3rd question because I have checked the specs of Bravus 8D and HSU STF-2, and the former can go as low as 25 Hz and the latter can go as low as 30 Hz. In fact in terms of frequency response not the Bravus 8D but the 10D comes near to HSU STF-2, yet 10D still cannot outperform STF-2 in this respect, as it can go as low as 26 Hz.
I must note that I may be overlooking a very important factor with regard to the relation between dB and Hz in the specs. The specs of 8D and STF-2 are actually provided as follows in their manuals:
STF-2: 25 Hz, +/- 2 dB
8D: -3dB, 35Hz - 180Hz -- -6dB, 30Hz - 180Hz (The specs of Bravus subwoofers shows this 6dB as "minus", but when two subwoofers, say 8D and 10D or 12D, are compared on the website, minus sign is not available. I am not sure which one is the correct one.)
If the above details (combination of dB information with Hz information) do not change the maximum amount these subwoofer can go down, then does not this mean that 8D (even 10D) does not perform on par with STF-2?
Apart from the frequency response issue, I have also noticed that the amplifier power of 8D is lower than that of STF-2 (150 vs 200).
So in which respects does 8D perform on par with STF-2? In particular, in what respects (including but not limited to frequency response and amplifier power) would you agree with the forumite who had replied to my previous post and say that (i) I will get the performance of a larger sub, i.e. STF-2, in a smaller package that has a smaller but dual drivers, i.e. 8D; and (ii) the smaller dual drivers of 8D would sound like the bigger driver of STF-2?