installing 2 Mids on one crossover?

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playr747

Copper - Posts: 65

Joined: August 28, 2002

Location: United States

Posted: June 07, 2004 at 10:00 PM / IP Logged

I want to install 2 eclipse 6.5 mids on one 8062 component crossover any ideas how to modify the crossover to do that. I dont want to put a 2 ohm load on the crossover if it was only intended for one speaker. It is going to throw off the crossover point and possibly destroy it.. Any ideas people?

stevdart

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Joined: January 24, 2004

Location: Pennsylvania, United States

Posted: June 07, 2004 at 11:27 PM / IP Logged

You would need a different crossover, built to run two 4 ohm speakers.

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wvsquirrel

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Posted: June 08, 2004 at 2:23 AM / IP Logged

Not recommended, especially if you're planning on putting one speaker on the left and one on the right. If you were to put 2 speakers on a crossover meant for 1 speaker then you lose the stereo effect and end up running mono (not to mention you'd probably fry the crossover if the impodence was too low)

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DYohn

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Posted: June 08, 2004 at 8:21 AM / IP Logged

Actually the crossover won't care too much about the impedence unless you pull so much power through it you exceed its current capacity, but cutting the total impedence in half will shift the crossover point UP by 2X. Meaning, if the crossover is designed for, say, high-pass for your mids at 600 Hz at 4-ohms, the cross point will change to 1200 Hz at 2-ohms. This will change the overall sound characteristics of the system dramaticaly. It is not recomended.

If you want to run two mids for some reason, either build your own crossover for them designed for the total impedence, or use a seperate amp with electronic crossover for the mids.

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playr747

Copper - Posts: 65

Joined: August 28, 2002

Location: United States

Posted: June 08, 2004 at 3:42 PM / IP Logged

I'm putting a total of 2 mids on each door. A total of 4 mids. I have the original component set with crossover and I want to add another mid to each side on each corresponding crossover. I hope this clears up what I'm trying to do. Thanks for all the input

DYohn

Moderator - Posts: 10,741

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Posted: June 08, 2004 at 3:53 PM / IP Logged

And I hope you understood my post. If you do this, three things will happen. 1) since you will have cut the impedence of the mid speaker load in half, the crossover frequency will double. 2) this increase in crossover frequency point will make the mids sound shrill and leave a large "hole" in your sound, since the woofer will still be crossed at the original point. 3) since you will have your mids at 2-ohms, if the other speakers in the system are at 4-ohms the mids will be twice as loud. Also, this lowering of impedence in the mid band could potentially overload your amplifier and could certainly cause strange sonic distortions and cancellations in your listening space.

Build a new crossover designed for the system you want to install.

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playr747

Copper - Posts: 65

Joined: August 28, 2002

Location: United States

Posted: June 08, 2004 at 4:02 PM / IP Logged

I understand. My thought was to modify/replace the necessary parts in the existing crossovers if that is possible. thanks

audiocableguy

Copper - Posts: 630

Joined: January 27, 2003

Location: Idaho, United States

Posted: June 08, 2004 at 5:39 PM / IP Logged

Adding a pair of mids using your existing x-overs might not be the best idea. You might be able to change out some or all the components and reconfigure for zobel filters, hay stack, notch filters etc. Someone on ebay might be selling a pair of additional x-overs like you have already. Adding the additional mids would be very easy.

Ravendarat

Platinum - Posts: 2,806

Joined: February 23, 2004

Location: Canada

Posted: June 08, 2004 at 8:09 PM / IP Logged

Just find out what frequency the crossover is actually crossing the speakers over at and use caps and coils on each speaker to bandpass the frequencies. Then it doesnt matter if you have a crossover on the amp at all because the speaker is going to only recieve usable frequencies any ways.

double-secret reverse-osmosis speaker-cone-induced high-level interference distortion, Its a killer

playr747

Copper - Posts: 65

Joined: August 28, 2002

Location: United States

Posted: June 08, 2004 at 9:56 PM / IP Logged

Could I replace the existing capacitor and inductor in the passive crossover that it used for the mid with ones calculated for a 2 ohm load?

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