I don't think there is much difference in how a speaker would sound, if you have an amp that is 2 ohm stable it would be louder at 2ohms than at 4 because there is less impedance, means more current ,equals more power
think of yer amp as a dojo, and yer subs as a corrupt empire. think of 1 ohm as a 1 story high wall. so your dojo releases hella ninjas (watts) to reak havok on the corrupt empire. if you wire yer subs at 2 ohms (thats a two story high wall) many ninjas will get into the corrupt empire. but if you wire them at 4 ohms, only so many ninjas will get over (only the halla L337 ones).
more ohms = less power to the subs, it has nothing to do with sounding good. ohms are all about electrical resistance. yer amp should tell you how many watts it puts out for each diff ohm load (resistence).
ninjas roxorz
New Guy 12
Unregistered guest
Posted on
so if I'm getting an alpine type R 10" sub, should I get the 2 OHM or 4 OHM model????
decide on an amplifier first. after that, choose the correct coil setup for your subs. subs are offered as SVC, DVC, 2 ohms, 4 ohms etc in order to match them to your amplifier and the number of subs you'll have connected to that amp.
see why math was important in HS now? hehe
New Guy 12
Unregistered guest
Posted on
Will one alpine SWR 1042d sub work with a Kenwood KAC-8152D for an amp??? Will it have enough power??
SWR 1042d is a dual 4 ohm 10" type R? what's the RMS power at 2 and 4 ohms for that kenwood? I don't follow their stuff by model also too busy to look it up. sorry
New Guy 12
Unregistered guest
Posted on
Yes it is a dual voice coil. Kenwood KAC-8152D RMS: RMS Power: 300W x 1 @ 4 ohms RMS Power: 550W x 1 @ 2 ohms Max Power=1100 watts
Alpine Spec: RMS Power Range=50-500 watts peak power handeling= 1500 watts
wow, that was about the most unintelligent way of explaining resistance. you could have used water flowing through different diameter hoses instead of ninjas and corrupt empires. and u are 19? wow. more ohms may mean less power but it also means more stability for the amp. so its not necessarily a bad thing.
not so much more stability as less THD, better SNR, better damping, and more headroom by using a 4 ohm load as opposed to something lower, but going with an impedance that's too high has it's drawbacks too. You need to know the specific amplifier's range of operation and at what load it's designed to be most efficienf if you really want to get the best SQ out of it. Otherwise, using the amp at any load within it's operating parameters will pretty much give you the same results with varying amounts of power. Not that most people can tell using $150 amplifiers when combined with 80dB of road noise and the 10+% distortion any speaker is going to have anyway..
as for kenwood amplifiers, I don't like them a lot myself so I'd have to say they aren't designed for SQ or SPL.. they're designed for mass appeal based on looks and price. They have a moderately high failure rate and tend to like shutting down with a simple 2 ohm load even though that's within their spedified range of loads.
im not hatin, it was just dumb. so then how will you explain different resistance for different metals, or different cross sectional area, or different temperatures. how about EMI or RFI? still gonna use ninjas?
You could use killer whales. Say that a daddy killer whale is 1 ohm, momma is 2 ohm, and baby is 4 ohm. These killer whales are hungry for sea lions, so if the sea lions are the watts, you can see that more sea lions can be consumed by the daddy whale because he is bigger. Then the momma whale will eat less than the daddy whale because she is smaller. And baby will eat even less than that, maybe even just some fish. So the resistance is the size of the stomach, or er, the appetite, or maybe the bulk of the killer whale. Well, I understand it. Orca would be a good name for an amplifier.
The killer ninja whales was a funny analogy (though not directly related). Still gave a good laugh.
What the OP should realize, is that the same sub (assuming he/she's going with a single sub setup) is also available in a 2 ohm DVC configuration.
If you don't intend on running multiple subs, and have an amp capable of being bridged while support a 4 ohm load (most bridgeable amps are), then get the 2 Ω DVC model, wire it in series. Your amp is then presented with a 4 Ω impedance, and should work nicely.
My alpine amp does 250 x 2 into 2 ohm loads, or 500 x 1 into 4 ohm. Either way the power figure works out the same, but as pointed out above, 4 ohm is more stable, less thd, etc..
gpz1100
Unregistered guest
Posted on
The killer ninja whales was a funny analogy (though not directly related). Still gave a good laugh.
What the OP should realize, is that the same sub (assuming he/she's going with a single sub setup) is also available in a 2 ohm DVC configuration.
If you don't intend on running multiple subs, and have an amp capable of being bridged while support a 4 ohm load (most bridgeable amps are), then get the 2 ohm DVC model, wire it in series. Your amp is then presented with a 4 ohm impedance, and should work nicely.
My alpine amp does 250 x 2 into 2 ohm loads, or 500 x 1 into 4 ohm. Either way the power figure works out the same, but as pointed out above, 4 ohm is more stable, less thd, etc..