15 to 18?

 

Gold Member
Username: Splmonster

Akron, OH USA

Post Number: 1493
Registered: May-06
well heres my question. right now i have an old hd15 and i wanted to now if i'd see any gains if i jumped to a new hdc18? i dont know how the old and new hd's compare but say they were the same if i kept my nine.1 would i see any gains? building a new box for the 18 of course. im guessing since id build a bigger box for the 18 id see some gains. what do you guys think? is it worth the hassle?
 

Gold Member
Username: Nd4spd18

Northwest PA

Post Number: 8329
Registered: Jul-06
There would be a gain, but not much difference on music. Not worth the cost.
 

Gold Member
Username: Splmonster

Akron, OH USA

Post Number: 1494
Registered: May-06
aight cool man. any other 18" subs with the same power would be much of an improvement? or still not worth it?
 

Gold Member
Username: Nd4spd18

Northwest PA

Post Number: 8330
Registered: Jul-06
To get big gain on the same power you have to increase cone area a lot...... 4 12"s would do the trick and you might have space for that if you have space a proper size 18" box.
 

Silver Member
Username: Deadrabit

Post Number: 740
Registered: Jun-07
from the hd to the hdc u get almost 1db more with the same power.
18s sound awsome imo.

4 12s would do it.
i would get an 18 just for daily driving.
12s for comps


but even if u get a 15 hdc. the hdcs are better subs that the hd
 

Gold Member
Username: Loc_out

SOCAL2 RE 15 XXX

Post Number: 2444
Registered: Feb-05
If increase is what you want a new amp is a must. What amp do you have right now?
 

Gold Member
Username: Splmonster

Akron, OH USA

Post Number: 1495
Registered: May-06
right now i got a nine.1 i juss really dont want to have to get an HO alt. i have a kinetik 1800 sittin in the clost cuz i got a good deal on it but i never used it. and i could use that if i get more power but i juss dont want to have to get an ho alt. plus imma be upgrading my speakers soon so theres a couple hundred more watts on the alt to think about...
 

Gold Member
Username: Loc_out

SOCAL2 RE 15 XXX

Post Number: 2445
Registered: Feb-05
I would just keep the current setup.
 

Gold Member
Username: Splmonster

Akron, OH USA

Post Number: 1496
Registered: May-06
i know this is always a touchy subject lol but whats the most you'd put on a stock alt. in this case ive got 185 stock alt but still lol
 

Gold Member
Username: Splmonster

Akron, OH USA

Post Number: 1497
Registered: May-06
155 stock alt lol sorry
 

Gold Member
Username: Bonhamd

Post Number: 1080
Registered: Nov-07
touchy indeed

i have a 125A and run 1000-1200 RMS no problem

just watch your voltage
 

Gold Member
Username: Loc_out

SOCAL2 RE 15 XXX

Post Number: 2446
Registered: Feb-05
I wouldn't do more than 1000RMS. Keep in mind if your alt is 155 it's most likely 90 @ idle.
 

Gold Member
Username: Splmonster

Akron, OH USA

Post Number: 1498
Registered: May-06
aight thanks for your input. so ill prolly juss stay where im at lol and worry bout the door speakers lol and clean up the box install, cuz it sure needs it haha
 

Gold Member
Username: Splmonster

Akron, OH USA

Post Number: 1499
Registered: May-06
but back to the main topic do you think id hear any difference what so ever? 18=lower bass? not neccesarily loudness increase but juss all around lower and better sounding bass?
 

Gold Member
Username: Nd4spd18

Northwest PA

Post Number: 8342
Registered: Jul-06
" i would get an 18 just for daily driving.
12s for comps "

LOL some people. The four 12"s will be better doesn't matter if it's comp or music.
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