question

onewickedkid05 · Post by **onewickedkid05** » Tue Nov 13, 2007 11:34 pm

So i have 2 12in Earthquake DB's in a small plexiglass box...Im wondering if anyone can Suggest an Amp to help power these...the amp thats in the car is more for a rear speaker set up.....if i cant find an decent (kinda cheap amp) im just gonna get rid of them

DB-12
- 600 MAX
- Fs = 27Hz
- Qts = 0.6339
- Vas = 3.19 cubic ft
- Sen = 90dB
- 2" polymide coil (4 ohms)
- 50 Oz magnet
- Santoprene surround

Anonymous User · Post by **Anonymous User** » Tue Nov 13, 2007 11:56 pm

What is the voice coil configuration & the RMS of the sub?

onewickedkid05 · Post by **onewickedkid05** » Wed Nov 14, 2007 8:33 pm

should be 600 watts rms im pretty positive voice coil im not sure

Hudson_Neon · Post by **Hudson_Neon** » Wed Nov 14, 2007 9:26 pm

the earthquake site says that the 12's are as listed:

MODEL: DB-12 Street Pro
1000 MAX
Frequency Response = 25Hz - 1.1k
Sen = 89dB
50 Oz magnet
2" polymide coil (4 ohms)
Sandblasted pressed pulp fiber cone
High roll santoprene surround
Jet-black, textured basket
Stitched leads
MSRP:199.00

i don't know where you got your info

but either way. i've learned that it's a safe bet to go for an educated guess of RMS being around 1/2 the peak/max

onewickedkid05 · Post by **onewickedkid05** » Wed Nov 14, 2007 10:53 pm

ibought these a year ago before street pros came out mine have a red ring around the outside. the rms should be anywhere between 400-600 though i dont know that for a fact. I wouild assume there pretty close to the street series ones and found out there 4 ohm....so can anyone suggest an amp or should i just sell them

Anonymous User · Post by **Anonymous User** » Thu Nov 15, 2007 2:30 am

are they single 4ohm or dual 4 ohm?

onewickedkid05 · Post by **onewickedkid05** » Thu Nov 15, 2007 8:41 am

not sure...

Hudson_Neon · Post by **Hudson_Neon** » Thu Nov 15, 2007 8:47 am

well that right there makes the difference on which amp to get. if they're single voice coil and you run an amp for dual voice coil you'll pop them real quick

biggrobb1995 · Post by **biggrobb1995** » Thu Nov 15, 2007 11:32 am

How many terminals do they have. You will be able to tell if they are SVC or DVC by the number of terminals.

Anonymous User · Post by **Anonymous User** » Thu Nov 15, 2007 6:05 pm

Hudson_Neon wrote: if they're single voice coil and you run an amp for dual voice coil you'll pop them real quick

that makes no sense...matching a amp to subs doesnt matter if the subs are single dual or even quad voice coils. it matters on the final ohm load when there wired up in a series or parallel.

to the OP, to check jsut see how many pairs of terminasl there are. if 1 set of black/red then its single if two sets of black/red terminals then its dual.

onewickedkid05 · Post by **onewickedkid05** » Thu Nov 15, 2007 6:07 pm

i have a set of black and red on each subwoofer

Anonymous User · Post by **Anonymous User** » Thu Nov 15, 2007 6:58 pm

so you have 2 SVC 4ohm subs, so they can either be wired to 2ohm or 8ohm. I suggest wiring them to 2ohm. & using this diagram & you can use these amp. or you can look for something that does 800watts RMS @ 2ohm.

http://sonicelectronix.com/item_2680_-- ... 1889I.html

onewickedkid05 · Post by **onewickedkid05** » Thu Nov 15, 2007 6:59 pm

any specific brand or type come to mind. Whats the difference between a 4ohm set up and a 2ohm set up and if its a monoblock any i can only use 1 set of rcas how am i supposed to power the other sub

Anonymous User · Post by **Anonymous User** » Thu Nov 15, 2007 7:00 pm

onewickedkid05 wrote:any specific brand or type come to mind

i jsut posted the link