Leaderboard

It doesn't matter. Amplifier will output X watts with 0 boost, add 9db boost output will be X * 8. Also, impedance doesn't peak at tuning. It peaks above and below tuning, with the middle point in the valley between the two peaks being the tuning frequency. Now, let's actually talk about the point you are trying to make. You are incorrectly assuming that because an amplifier is, for example, 1000w @ 1ohm that you have an available 1kw at any impedance. Not correct. Amplifier's clip because it's voltage rails are exceeded, which can happen at any impedance. If the amplifier is 1000w @ 1ohm, then it is capable of 31.62V. The rails are probably a little higher than that, we'll say 35V or so. Now, let's say you boost at an impedance peak where the impedance increases to 20ohm. The amplifier will be capable of 31.62^2/20 = 50w @ 20ohm. But you added 9db of boost. So the amplifier is trying to generate 400w of output. Voltage would increase to sqrt(400*20) = 89.44V. To verify that's a 9db increase, 20*log(89.44V/31.62V) = 9.03db. So, you have rails that are capable of a maximum 35V and you are trying to make the amplifier generate 89.44V....what do you think is going to happen here? You are also assuming that the amplifier is the only thing that will clip, ignoring the preamp level components. It might not necessarily damage anything....but I still wouldn't consider it an acceptable practice. I don't even know what the hell you are talking about right now. I assume you are trying to insinuate that a 9db increase is only a 3x increase in power, which is completely incorrect. 10*log(Power1/Power2) = db increase 10*log(2/1) = 3.01db 10*log(8/1) = 9.03db Therefore, to get an increase of 9db (i.e. 9db of boost on an EQ) you need an 8 fold increase power. Another way to think about it.....You need to double power to increase by 3db, then you need to double that power to increase another 3db, then you need to double that power to increase another 3db for a grand total of 9db of gain. So you would have 2 * 2 * 2, or 23 = 8. So you, again, need to increase power 8x to increase output by 9db. I understand that the boost may not have been 9db and that you misspoke in the previous post. But your comments that followed that statement made absolutely no sense whatsoever, which is what I was explaining here.

How about an Ascendant Audio Havoc, with an airbrushed cone?

Inductance is important, but not the single spec to take into account in a true subwoofer application. Additionally, where it comes into play though isn't really the fact that it acts as a low-pass filter, it is the effect that inducance has on changes in current... Put into laymens terms, the more inductance you have the more resistance you have to changes in current (AC current as it relates to us in this aspect) and the slower the driver will resond to changes. This translates into transient performance, or lack there of. In essence, look at inductance as a brake or extra dampening that tries to slow movement. So try not to think about it as a simple filter, but more of a restriction on transient performance. But, don't get hung up on this. In the realm of the bottom few octaves, you should be willing to give in to a little inductance in order to have a driver capable of sweeping enough volume to have usable output. When you get a few octaves above the sub realm, this is where the inductance really comes into audible play and the trade-offs in overall design start to favor lower inducance over other parameters such as swept volume... Hope this helps in some way...

Yes.

Fabrication question: On the recent boxes I have some seams which I want to fill with something for extra bonding. What can I use ? I thought about resin + finely chopped mat but it never comes out very consistent. Resin + sand ? Gelcoat + sand ? Resin + reinforced filler ? Needs to be applied by brush and it will sit in awkward positions so very free flowing is out of the question. The seam between the top and back of the enclosure is an example of where I need to apply a mixture of something. Some mat over that would work but there are way tighter spots where mat won't work.

Believe it or not, the flames actually ad dBs. Somehow how they are positioned, helps displace more air, thus more output.

WIN! ... Favorite selected... oh and welcome sir!!!

Nice car Bro. Look at the ZED amps in the SSA store. ZED Audio Leviathan ^ This one

Ok, again people start rambling off info without actually know the truth. One, how does anyone know the AQ is better quality? As the Crescendo has not came out yet... And the two boards Lance posted are indeed VERY SIMILAR. Which was the old 3500d, and VERY SIMILAR to another 3.5k amp. Also, how do you know Crescendo won't have a clip light bass knob? It seems they use the same buildhouse as AQ, so I would assume they would... Now, the Crescendo 3500d vs the new AQ 3500d, isn't really comparable because the AQ is a 4200 board, where Crescendo is a 3500 board, hence the price difference. But none the less, a big price difference for less than 1000watts. Come on people please learn to think you post.

Yeah, those prices scare me. Think i'm sticking with sundown. i cant tell if wht you said was a joke or if you were being serious either or your the most ignorant fuck i have ever seen lol