I am running some 6.5" mids in my doors from an Infinity Reference 6000CS set, and some Infinity 4" coaxials in my dash, using them as tweeters only. I am using this crossover: https://images.channeladvisor.com/Se...%20Ten%20b.jpg

an older Infinity one that crosses everything over at 3500hz/24db slope. I was thinking of adding a second set of mids to my doors, if I run them off of this same woofer output from the crossover, what what will the mids be crossed over at then? This will drop it to a 2 ohm load. Thanks!

[ October 12, 2005, 08:08 AM: Message edited by: 2 8's AKA Jeepbeats ]

Not a good idea.
Lowering the impedence of the mids to 2 ohms will cause a near dead short at certain frequencies.

Better to add a coil to your second set of mids, and parallel that with the existing crossover.

Okay, thanks for the info!

So using this crossover calculator: http://www.the12volt.com/caraudio/crosscalc.asp

If I was to run a second set of the same 4 ohm mids in parallel with the first set, the impedance for the calculator would be 2 ohms? If so, I have a pair of .25mh coils, according to this chart that would give me a crossover frequency of 1250hz lowpass at 2 ohms, sound right? Would that be a decent enough crossover for these mids? Thanks!

[ October 16, 2005, 11:07 AM: Message edited by: 2 8's AKA Jeepbeats ]

If anyone can recommend a different crossover I would appreciate it.

I would run the second setright back to the amp, then the crozzover impedance is 4ohms cuz it only sees the one speaker - it does not care what the amp sees.

I would also rather go up to 200hz @ 12db but that's just me.

Okay, thanks man! So you are saying do 200hz lowpass for the second set then, so they only play 200 and down?

[ October 17, 2005, 07:28 PM: Message edited by: 2 8's AKA Jeepbeats ]

right-o

Cheers!