aznboi3644

Nice...3" voice coils. I'm sure it is easy to get recone parts for those.

still isn't 1000 watts...more like 500 maybe

You do not have to switch the polarity. It depends on the install. Sometimes switching it makes no noticeable difference while other times it may make a very noticeable difference.

Trig to figure out the volume?? Far from it. Grade school geometry is all you need.

are you refering to the amps frequency response??? if so how can an amp "bottom out" when there is nothing to bottom out...no moving parts...I don't understand.

There's nothing wrong with sending a signal below the tuning frequency. My last enclosure was tuned to 40Hz...never used a subsonic...never had any problems playing sweeps down to 20Hz. In most cases the SSF should be set around 5-10Hz below the enclosure Fb.

On pretty much 75% of all of the spec sheets I see the lowest "frequency response" is usually the Fs of the subwoofer. Atleast on the majority of the subs I have looked at. Didn't mean to come off like that. I've seen the "frequency response" of subs listed as up high as 1khz...why would a subwoofer be crossed over that high?. I'm just saying these numbers are irrelevant.

Puts a damper on having a 15 inch sub??? Please explain. I see nothing wrong with it.

Fs is probably 40hz...it can play well below that. Any knowledgeable person does not even look at the "manufactures frequency response" as it means nothing

Best Buy FTL

no 45 or IN the port?

street edge is shit...weak sauce. You got owned

with that box I'd much rather use a 12" than a 15"...2.5 cu ft is way undersized for most 15's.

"need"...no

kush all day

yeah...as long as the area is the same tuning should not be affected.

Doubt they are taking 600 watts a piece...that vid is retarded. Gain at 1/2 means nothing if the input voltage is not known...stating that the gain at 1/2 is meaningless

its funny how people "guess" how something sounds from a crappy video on youtube.

good thread...agree to disagree. I do see how we were both coming from different perspectives...both are correct relative to our points of view.

tuned to 33-37Hz?? There is only one tuning frequency for a bass reflex.

Hoffmans Iron Law "You can have low end extension, high efficiency, or small enclosure size. Pick two." OP asked how to play a BROADER RANGE OF FREQUENCIES. Well lowering the low end extension is BROADENING the range of frequencies the subwoofer will play. Small enclosure size...everyone knows a small enclosure is not going to play as low as a bigger enclosure. Is playing lower frequencies better BROADENING the range of frequencies the enclosure will play? Of course...same way that you can lower the frequency range the enclosure will play by tuning higher...you gain efficiency but lose low end extension...unless you make the enclosure larger... And how does this not have anything to do with Hoffmans Iron Law???

I'm gonna have to disagree with this statement....its about the enclosure design and loading environment. for my old school JL 15W4 the excursion graph in my enclosure said I should have been bottoming out badly with 200-300 watts...The enclosure was 4.3 cubes tuned to 40Hz with 112.5 sq in of port area...I gave this sub all my 800 watt rms amp had daily with no problems....No SSF either. played down to 30Hz with no excursion problems. On the WinISD excursion graph of this sub with 800 watts the sub should have smashed the former to hell.

If you know about Hoffmans Iron Law it has everything to do with his first post.

Hoffmans Iron Law dictates frequency response

sell it for scrap copper...get money