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What can I do with 2 2ohms woofers?
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YOyoYOhowsDAjello
Moderator<br>A/V & Home Theater<br>Elite member
You can
-make doorstops
-use them as candy bowls
-put them behind the back wheels of your car when parked on a hill
-tie a chain to one and use it as an anchor (for a boat, or on land for a small child)
-wire them in series and get an amp that can handle 4-ohm loads
-wire them in parallel and get an amp that can handle 1-ohm loads
-wire them two two amp channels to an amp that can handle 2-ohm loads
-ask in the garage forum where people know more about hooking up these kind of subs and will be able to tell you if I (not knowing anything about car audio) have given you the right advice)
-ask in the AV&HT area where where people know more about hooking up these kind of subs and will be able to tell you if I (not knowing the whole picture on DIY) have given you the right advice)
-use them as ammunition for a DIY catapult or trebuchet
-throw them out a window to check durability and reaction time of passers-by
-hook them up to your bike and make one of these
...the possibilities are endless
zanejohnson
Diamond Member
they can either be run in 1 ohm in parallel, or 4 ohms in a series...so really you dont need an amp that can do 1ohm.
zanejohnson
Diamond Member
series is pos from the amp......to pos on woofer one...and then neg from woofer 1 to pos on woofer two...and then neg from woofer 2 back to neg on the amp.
YOyoYOhowsDAjello
Moderator<br>A/V & Home Theater<br>Elite member
I didn't real any of the text (going to bed now), but this site has pictures of what series vs. parallel wiring looks like.
http://www.termpro.com/articles/spkrz.html
For the cabinet that these will do in, that's going to depend on the parameters of the woofers.
In the Features & Specs, they have suggested volumes for sealed and ported. There are also calculators out there that help you figure out optimal cabinet volume based on the parameters of the woofers. I've never used one before though.
zanejohnson
Diamond Member
+ + - - is parallel by the way, both resisters parallel like that doubles the resistance, so 2ohms turns into 1ohm
13Gigatons
Diamond Member
Wiring in series doesn't require double the wattage, it requires more voltage instead of current from the amp. 2 ohms is pretty low and 1 ohm will crush most amps
Also a sealed enclosure will bottom out the drivers long before they use 1500 watts of power.
Also a sealed enclosure will bottom out the drivers long before they use 1500 watts of power.
13Gigatons
Diamond Member
35 watts can be 35 x 1 or 10 x 3.5, both are 35 watts. A 1 ohm load will draw more current and require less voltage. A 4 ohm load would require higher voltage and draw less current.
The 1500 watt rating is is the max the voice coil can handle but the cone would bottom out long before you could use that much power in a sealed enclosure. A vented enclosure would increase the power handling and also increase output. Only downside is output drops off pretty fast below port frequency and you need to have a subsonic filter.
BlackTigers
Diamond Member
These are two equal 2ohm voice coils though?
Your title is misleading.
Are you saying you have 2 of these woofers ?? Or just 1 ??
You say woofers meaning more than 1 or you just meant to say dual 2 ohms woofer ?
If you only have 1 of these woofer, than you can run it in 1ohm or 4ohms.
Since this woofer require alot of power, get a mono amp thats 1-ohm stable.
Sure you can get an amp to run the woofer at 4ohms, but amps produce more alot more power once you lower the impedance.
My advice ?? Ummm...find a different woofer if you haven't bought that one already.
Are you saying you have 2 of these woofers ?? Or just 1 ??
You say woofers meaning more than 1 or you just meant to say dual 2 ohms woofer ?
If you only have 1 of these woofer, than you can run it in 1ohm or 4ohms.
Since this woofer require alot of power, get a mono amp thats 1-ohm stable.
Sure you can get an amp to run the woofer at 4ohms, but amps produce more alot more power once you lower the impedance.
My advice ?? Ummm...find a different woofer if you haven't bought that one already.
brblx
Diamond Member
took a whole page for someone to point out that that's a DVC sub, eh?
as stated, one of those could be 1ohm or 4ohm, two would be 2ohm or 8ohm (or .5, but half ohm stable amps are pretty damned rare). being MA, the 1500wrms rating is probably pretty generous, but you'd still be looking for a pretty powerful amp. cheapest way to run them would indeed be a 1ohm stable monoblock, but that would only work with one of those.
as stated, one of those could be 1ohm or 4ohm, two would be 2ohm or 8ohm (or .5, but half ohm stable amps are pretty damned rare). being MA, the 1500wrms rating is probably pretty generous, but you'd still be looking for a pretty powerful amp. cheapest way to run them would indeed be a 1ohm stable monoblock, but that would only work with one of those.
13Gigatons
Diamond Member
Having two sub-woofers close enough together can increase output by 6db.
Subwoofers are limited by the power the voice-coil can handle and how soon the cone will bottom out. The cone may bottom out with 300 watts in a sealed enclosure long before the 1500 watt rating is achieved. A Vented enclosure will reduce the wild excursions and increase output.
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