2.67 ohms or 2 ohm that is the question

 

Bronze Member
Username: 94_toy

Post Number: 69
Registered: Sep-07
So i was wondering wat would give my subs more power. Say you have a 1000W amp, if u have 3 subs (dual 4 ohm) and u wire them as low as you can ull get 2.67 ohms would each sub get as much power as 4 subs off the same amp at 2 ohm. Wat im trying to get at is will 3 subs at 2.67 ohm get as much power as 4 subs at 2 ohm???.
 

Silver Member
Username: Somedonniedude

Post Number: 297
Registered: May-07
i'd assume 3 subs should get more than 4, being that the amp would put out slightly more power @ 2 ohms even, but then more of it gets split up between the subs.
 

Platinum Member
Username: Glasswolf

Wisteria, Lane USA

Post Number: 12053
Registered: Dec-03
a 1000 watt amp at WHAT LOAD?

if you want to use 3 subs, go with dual 3 ohm coil subs or 6 ohm coil subs.
then you get an even 2 ohm load when you wire them up.

Use Ohm's Law and figure out the power per sub based on the output of the amp at the given load.
 

Gold Member
Username: Nd4spd18

Northwest PA

Post Number: 3375
Registered: Jul-06
If the amp does 1000 watts at 2 ohms:

and guessing it will do approximately 800 watts at 2.67 ohms:



Then,

4 subs at a 2 ohm total load will get 250 watts per sub, 1000 watts total.

3 subs at a 2.67 ohm total load will get ~250-275 watts per sub, ~800 watts total.



Note that numbers with the ~ are approximate since you don't know what the amp actually does at 2.67 ohms.
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