AQ HDC louder than SSD?

[Papermaker85 5,000+ posts]

how much power they take does corrospond to be louder... i can get a DD 2512 to take 3500, doesn't mean its going to be louder than a 9515 with 3500..

i can't imagine how horrible they sound in 24 cubes...lmfao

 

[sound_around]

how much power they take does corrospond to be louder... i can get a DD 2512 to take 3500, doesn't mean its going to be louder than a 9515 with 3500..
i can't imagine how horrible they sound in 24 cubes...lmfao

ever tested one?who cares about SQ in a radx2 vehical....every day a new idiot

 

[Papermaker85 5,000+ posts]

i will take you back to preschool man... who cares about SQ, not you.. i used to love output sure it was fun, but there is a time when one adheres to music not a fart box..

once you understand acoustics and transducers and how competition works its not really fun, just expensive..

you understand how much more difficult it is to get 150 on music with a faily flat FR while sounding sweet? lets just say its alot harder than simply matching the ports peak to the vechicals res, avoiding cancallation at the dash and getting alot of power to the woofer hoping not to kill the woofer..

those woofer handle so much power because, inductance fluxuation, impedence rise, power compression along with a very non linear motor and suspension(actually helps raise efficiency of the system)... aka thats why the big SPL woofers don't start to gain untill you pour more and more power.. in realitly a very efficiency highly linear woofer is better(this is preety much hwat hte 99z is but with a huge coil and sicking motor strength, wonder why they use a alum 3" coil?)... hence many companies are straying from previous spider surround designs..

no offense to dj cause the woofers are good, but your just not understanding whats happening or why..

drop a PA driver with a fair amount of xmax (15mm or so) and a stiff suspension along with a 981w1m efficiency.. now cut power by 1/4 and i bet you do similar numbers... in fact look onto acoustice elegance woofers... for the street classes in a hatch back they will do EXCELLENT in SPL, so will the AE AVs althought htey have a lower eficiency 1kw to them is around the same output as the 9500 with 2k....

btw i tested so many drivers if you cna give ACCURATE parameters i can tell you which woofer will be ideal for you installation, save ya alot of money... i mean dumax t/s parameters kms curves b/l curves power compression etc... i stopped using bass box pro a long time ago, very flawed when tring to prodict real world performance...

 

[Anonymous 10+ year member]

AQ HDC3's will definately get louder. SSD might be more musical overall but you can get the AQ's very musical also. SSD would be more comparable to AQ SDC 2.5.

 

[Papermaker85 5,000+ posts]

no doubt, but the thing is here with 1k you wnat a more complaint driver with a more linear motor and suspension.. i highly suggest you look into the AE AV, get the single stiff spider and let it poud your head in sound excellent and you cna put 1500 if your careful...

 

[sound_around]

i will take you back to preschool man... who cares about SQ, not you.. i used to love output sure it was fun, but there is a time when one adheres to music not a fart box..
once you understand acoustics and transducers and how competition works its not really fun, just expensive..

you understand how much more difficult it is to get 150 on music with a faily flat FR while sounding sweet? lets just say its alot harder than simply matching the ports peak to the vechicals res, avoiding cancallation at the dash and getting alot of power to the woofer hoping not to kill the woofer..

those woofer handle so much power because, inductance fluxuation, impedence rise, power compression along with a very non linear motor and suspension(actually helps raise efficiency of the system)... aka thats why the big SPL woofers don't start to gain untill you pour more and more power.. in realitly a very efficiency highly linear woofer is better(this is preety much hwat hte 99z is but with a huge coil and sicking motor strength, wonder why they use a alum 3" coil?)... hence many companies are straying from previous spider surround designs..

no offense to dj cause the woofers are good, but your just not understanding whats happening or why..

drop a PA driver with a fair amount of xmax (15mm or so) and a stiff suspension along with a 981w1m efficiency.. now cut power by 1/4 and i bet you do similar numbers... in fact look onto acoustice elegance woofers... for the street classes in a hatch back they will do EXCELLENT in SPL, so will the AE AVs althought htey have a lower eficiency 1kw to them is around the same output as the 9500 with 2k....

btw i tested so many drivers if you cna give ACCURATE parameters i can tell you which woofer will be ideal for you installation, save ya alot of money... i mean dumax t/s parameters kms curves b/l curves power compression etc... i stopped using bass box pro a long time ago, very flawed when tring to prodict real world performance...

we pull real TSP's bro...i used to build SQ setup's so it seems we are not that far apart and i DO understand all that you said.ive been building systems since the mid 80's and have learned so much in those years but its never enough yaa know....

AQ HDC3's will definately get louder. SSD might be more musical overall but you can get the AQ's very musical also. SSD would be more comparable to AQ SDC 2.5.

agreed

 

[Papermaker85 5,000+ posts]

cool, just tring to explain why the rumors of the 10k RMS power handling just don't apply to the actual meaning of RMS/therminal power handling and standards sret for it... note this, take your setup. measure apparent power apply 100 watts, double it measure SPL, double its again measure SPL p untill you don't gain, then tell me how inductance, power compression and compliance alter output... then go back to where you start to loose the most output use more/less port area.. do this untill you LOSE spl off your peak, trick to that is tuning the box correctly, increasing port area alters compliance and dampning so you might need to tune higher or lower to see an actual gain...

im not here to hurt anyone or make them llok stupid, i just don't like being called an idoit..

 

[audio_phill 10+ year member]

If you measure both the specific gain freq of the cabin (changes as the pressure does) and then match your enclosure tuning accordingly and volume to the woofers likings with a vent mach under 26M/s, as long as the sub has a HQ VC and a very compliant, linear suspension and the box impedance rise is super low, it becomes as simple as staying inside the mechanical limits of the sub. Of course none of this can be done without actual thieles for the sub and a precision meter. As for port area, there are golden ratios between port volume and box net volume to keep the port's damping in check. So power/and thermal compression shouldn't have time to affect the output no longer than it takes for pressure to build. Inductance usually doesn't occur as much as capacitance in the freq's rad X vehicles burp at. The coil acts as both a inductor and capacitor, the lower freqs 1Hz---> near resonance is inductive then there's a small bandwidth of capacitance that usually returns to inductance around the upper bass/midrange point (80Hz---&gt hence why most Le measures are at 1K but actual theile smalls come from having multiple inductance values figured in across the bandwidth of th sub to have fully accurate electro-mechanical parameters.

 

[Papermaker85 5,000+ posts]

port dampning is dependant to several factors.. no simple a golden ratio per box size.. it depends on the design of the installation. not only that but the woofer, car, frequency, amoung other things.. without getting too detailed.. inductance affects the coil instantly as power is pasted throguht the inductor.. your going to have lag/lead reguardless....

measuring t/s parameters are much more difficult than just slapping the woofer on a shelf and measuring....

inductance affects hfe while capitance affects lfe.. essecntually it alters the speed at which the current can alternate at... one decreses the rate one increases the rate... its instant not something that builds over time.. if its high enought at rest it will affect the transducer instantly.. if its only high enought via power compression then its only apperant then...

 

[audio_phill 10+ year member]

No one said inductance and capacitance weren't instant, What was referred too by that was power compression. But Inductance isn't as big a deal for a burp setup. how many woofers have you hands on spec'd and then applied to a vehicle specific install? I've built both SQ and SPL in both car and home hi-fi. Since were talking about the speed of light a lil slowing down doesn't affect the performance/speed of the woofer as much as your letting on man... I can plot delay times by freq in any given enclosure/as well as phase/impedance rise etc. i can build guaranteed number/bandwidth boxes for any environment as long as some one is willing to use the required driver/space/processing. Most of my hi-fi car installs are even time-alligned. I'm no nube man been around audio for awhile now. You remind me alot of Nick from Ascendant Audio/Fi/Flux Tech, lol. Hes abit younger than you though I believe. Ya'll sound alot alike in the way you press the importance of things.

 

[audio_phill 10+ year member]

By the way... Get detailed, specifics are tools for the experienced mind and generalizations are for nubes.

 

[Papermaker85 5,000+ posts]

not pressing anything its simply laws... i sound like nick? i really don't know nick so I guess thats your oponion...

where did i say your a newbe?

not sure what you mean by the first sentence it doesn't make much sence.. inductance isn't important for a burp? thats like saying a reactive load doesn't exhist unless its enegrized for a given parameter...

i have had enought experence to know such things... maybe not as much as alot of people here but enought to know...

i didn't say you couldn't do anything.. you don't have to prove anything... im telling you facts simply put. what and WHY... im sure your very good at anything your try to do, im am as well..

also if your refering to power compression not affecting the driver, any time you pass an axcess of current throught a conductor that cannot handle hte electron flow the result is heat... sure it may take time for the heat to build up, ut enought current and it will be nearly instantious... //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

 

[Papermaker85 5,000+ posts]

By the way... Get detailed, specifics are tools for the experienced mind and generalizations are for nubes.

oh really now... im not here to argue with you man.. you better hope im not a newbe because at this rate you will be underwater..

also instaead of guessing how about you ask? nov 13/85 24 this year..

 

[mrogowski 5,000+ posts]

OP, it is all in the way you install and your environment - nothing more. Sub brands should be a tertiary thought //content.invisioncic.com/y282845/emoticons/fyi.gif.9f1f679348da7204ce960cfc74bca8e0.gif

 

[Papermaker85 5,000+ posts]

have a bier, enjoy... which woofer is important... ESP since i work for my money..??