Posted March 11, 200916 yr I know this may be a dumb question..but i believe a dumb question is one that was never asked!! so if someone would clear this up for me i'd appreciate it!ok my buddy just sold me his 15" fi Q dvc 1ohm...i already have a kicker cvx dvc 4ohmnow i am gonna buy another fi Q but money is an issue right now and i need some knock right nowso the question is if i wire the fi q down to 2ohms and wire the cvx to 2ohms will it be a 1ohm load or not? and why? i know they are different voice coils but 2 subs dropped to 2ohms=1ohmand my amp is 1ohm stable, would this work or will it fry my amp?
March 11, 200916 yr i drew up a little circuit to look at this set up, and both subs should/would see the same current, if i remember my circuits class right. but each coil would see different current. one 1 ohm coil will recieve X amount of amps, the second 1 ohm coil will recieve X amount of amps, one 4 ohm coil will recieve X/2 amount of amps, and the second coil will recieve X/2 amout of amps. When wiring the Q in series and the crx in parallel, the Q will see X amps and the crx will see X ampsX is the same through the whole explination.edit: its still not reccomended to have two different type of subs in at the same time for sound quality reasons. Just stick with one sub till you get the second Q Edited March 11, 200916 yr by fritosaregood
March 11, 200916 yr Voltage remains the same to each sub, but acts different on each coil.each sub gets Y amount of volts. the Q's 1 ohm coils each receive Y/2 volts and the crx's 4 ohm coils each see Y voltsso Watts = volts * ampsQ: one 1 ohm coil sees Y/2 volts * X amps = (X*Y)/2 watts CRX: one 4 ohm coil sees Y volts * X/2 amps = (X*Y)/2 wattsbut now thinkin how does Power (Watts) divide in parallel vs series?
March 11, 200916 yr How about different T/S parameters? Box requirements? Port requirements?Oh. i added that in an edit to my orginal post about in not being reccomended to mix different subwoofers,but i was more goin into the electronics part proving each woofer would stiff recieve equal power and not fry the amp
March 11, 200916 yr How about different T/S parameters? Box requirements? Port requirements?Oh. i added that in an edit to my orginal post about in not being reccomended to mix different subwoofers,but i was more goin into the electronics part proving each woofer would stiff recieve equal power and not fry the ampI know you were, someone needed to tell him the whole story though. Thanks for the edit.
March 11, 200916 yr I still think if people have to ask this, they shouldn't own expensive equipment.
March 11, 200916 yr Ok you CAN do it, but you shouldn't..... at all..... ever.this sentence is the first quote for my signature..hah
March 11, 200916 yr You can't do it.But people mix high's with different impedences and different speakers all together all the time and run them. You can do it and I've seen it done several times. I've seen spl competitors run mismatched subs and their scores go up because of it. I've done it in my car at one point. I ran a dual 1 ohm Nightshade at 2 ohms and a dual 4 ohm Type R at 2 ohms and then ran them in parallel to my amp at 1 ohm. My score dropped off from a 148.1 with 2 NS to a 147.6 with 1 NS and 1 Type R. Now the Type R isn't even in the same class as the NS, but my point is that it worked fine and I didn't have any issues running it like that for 2 weeks or so until I got a recone on my other Nightshade. Jacob saw it when I went to Sundown to get the sub reconed.
March 11, 200916 yr Using different speakers for highs is easier. they are not in the same enclosures and are ususally crossedover at different frequencies.As for spl numbers you can get higher numbers from addin more of different types of woofers. more cone area usually leads to higher numbers, but the box used wont be perfect for each woofer. and electrically it will work. also if one woofer has more force that the other it could probably damage the less powerfull woofer, if its a common chamber
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