Tom J
Organiser: South Wales
Premium Member
Registered: 8th Sep 03
Location: Bridgend
User status: Offline
|
sorry if this is a stupid question, but are they designed to power more than one sub? will it damage the amp by using two subs on it 
[Edited on 13-03-2006 by Tom J]
|
b4l
Member
Registered: 7th Feb 06
User status: Offline
|
read the specification on the amp
if it says that the amp is stable at 2 ohms (as opposed to 4ohms) then it will be ok to wire 2subs in parallel to the single channel
|
manchester-lad
Member
Registered: 17th Feb 03
Location: Middleton, Greater Manchester
User status: Offline
|
i have a mono mutant amp it powers my 2 audiobahn subs so yer you should be fine mate
|
flash22
Member
Registered: 13th Sep 05
User status: Offline
|
it all depends on the rating of the amp and the ohm rating of the sub
A few things to note before I begin:
R = Resistance (in ohms)
V = Voltage (in volts)
I = Current (in amps)
--------------------------------------------------------------------------------
To find the total resistence (in ohms)
Parallel:
1/Rt = 1/R1 + 1/R2 + 1/R3 .....continued for as many speakers as you have
Series:
Rt = R1 + R2 + R3 .....continued for as many speakers as you have
So, in simple terms for our purposes, we'll assume all speakers have the same impedance rating. Assuming that, we can use the following simpler formulas.
Parallel:
divide the resistence of the subs by how many you have.
example: if you are using two 4 ohm subs, divide 4 ohms by 2 to get the total resistance of 2 ohms. If you increase this to four 4 ohm subs, then you divide 4 ohms by 4 to get total of 1 ohm.
Series:
add the values for each sub to get the total. Two 4 ohm subs would add to a total of 8 ohms. Four 4 ohm subs would add up to 16 ohms.
Special note: DVC subs
You can also consider using DVC (Dual Voice Coil) subs. These have 2 pairs of terminals per sub. Each speaker can be wired to 2 channels on your amp, or you can wire the speaker in either series or parallel and it will act like a single sub (of different impedance, of course)
Say you have a pair of 4 ohm DVC subs. If you wire each sub to itself in parallel, that makes it a single 2 ohm speaker. Then wire the two subs together in series, and you have a single 4 ohm set-up.
[Edited on 14-03-2006 by flash22]
|
