Not using Component speaker crossovers.
Thread Starter
Safety Car
Joined: Jan 2004
Posts: 3,783
Likes: 15
From: Northern California
Not using Component speaker crossovers.
I have a pair of Infinity Kappa 5 1/4" component speakers and I was wondering if I could wire the mid and tweeter in parallel for a 2 ohm impedance and not use the crossover it came with.
I'm going to use the high pass crossover from my amp and I wanted to wire the speakers for a 2 ohm impedance because the amps power into 2 ohms is 100 watts rms compared to a 4 ohm impedance which is 75 watts rms. Thanks.
I'm going to use the high pass crossover from my amp and I wanted to wire the speakers for a 2 ohm impedance because the amps power into 2 ohms is 100 watts rms compared to a 4 ohm impedance which is 75 watts rms. Thanks.
Thread Starter
Safety Car
Joined: Jan 2004
Posts: 3,783
Likes: 15
From: Northern California
Thanks everyone.
I forgot too mention I was also, going to install some bass blockers I had for the tweeters but, I'll just use the Infinity crossovers just to be safe.
I forgot too mention I was also, going to install some bass blockers I had for the tweeters but, I'll just use the Infinity crossovers just to be safe.
Last edited by GKK; Oct 18, 2006 at 06:28 PM.
Le Mans Master
Joined: Jun 2004
Posts: 5,572
Likes: 4
From: Los Angeles Ca
Originally Posted by adown
All you need is a capacitor in series with your tweet and a coil in series with your mid. It is doable, you just need to know where you want to cross at.
Melting Slicks
Joined: Sep 2003
Posts: 3,306
Likes: 2
From: Wesley Chapel Fl
It would be 1st order 3db per octave.
There is no point in using a cap and coil if there is a predisgned xover network already made. Once the cap is introduced the tweeter is no longer going to play the same frequencies as the mid driver therefore the amp is not going to see 2 ohm. The amp will only see 2 ohm or lower when both speakers play the same frequency at the same time.
There is no point in using a cap and coil if there is a predisgned xover network already made. Once the cap is introduced the tweeter is no longer going to play the same frequencies as the mid driver therefore the amp is not going to see 2 ohm. The amp will only see 2 ohm or lower when both speakers play the same frequency at the same time.
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Le Mans Master
Joined: Jun 2004
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From: Los Angeles Ca
Originally Posted by EatRice
It would be 1st order 3db per octave.
There is no point in using a cap and coil if there is a predisgned xover network already made. Once the cap is introduced the tweeter is no longer going to play the same frequencies as the mid driver therefore the amp is not going to see 2 ohm. The amp will only see 2 ohm or lower when both speakers play the same frequency at the same time.
There is no point in using a cap and coil if there is a predisgned xover network already made. Once the cap is introduced the tweeter is no longer going to play the same frequencies as the mid driver therefore the amp is not going to see 2 ohm. The amp will only see 2 ohm or lower when both speakers play the same frequency at the same time.
Race Director
Joined: Mar 1999
Posts: 12,597
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From: Bartlett Illinois
Originally Posted by EatRice
It would be 1st order 3db per octave.
There is no point in using a cap and coil if there is a predisgned xover network already made. Once the cap is introduced the tweeter is no longer going to play the same frequencies as the mid driver therefore the amp is not going to see 2 ohm. The amp will only see 2 ohm or lower when both speakers play the same frequency at the same time.
There is no point in using a cap and coil if there is a predisgned xover network already made. Once the cap is introduced the tweeter is no longer going to play the same frequencies as the mid driver therefore the amp is not going to see 2 ohm. The amp will only see 2 ohm or lower when both speakers play the same frequency at the same time.
Melting Slicks
Joined: May 2005
Posts: 2,039
Likes: 0
From: Stuttgart
Originally Posted by EatRice
It would be 1st order 3db per octave.
There is no point in using a cap and coil if there is a predisgned xover network already made. Once the cap is introduced the tweeter is no longer going to play the same frequencies as the mid driver therefore the amp is not going to see 2 ohm. The amp will only see 2 ohm or lower when both speakers play the same frequency at the same time.
There is no point in using a cap and coil if there is a predisgned xover network already made. Once the cap is introduced the tweeter is no longer going to play the same frequencies as the mid driver therefore the amp is not going to see 2 ohm. The amp will only see 2 ohm or lower when both speakers play the same frequency at the same time.
Race Director
Joined: May 2003
Posts: 14,137
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From: Iowa
St. Jude Donor '03 thru '26
Originally Posted by EatRice
It would be 1st order 3db per octave.
To the orginal poster, use the Infinity crossovers
Racer
Joined: Mar 2006
Posts: 366
Likes: 1
From: Esparto ca
1st order is 6db. E R is right that the amp wont see 2ohms. The cap is a linear device and is going to add impedance. Actually the same is true with any passive xover. Caps and coils introduce impedance.Digital or active are the best.
Last edited by adown; Oct 20, 2006 at 11:46 PM.
Le Mans Master
Joined: Jun 2004
Posts: 5,572
Likes: 4
From: Los Angeles Ca
Originally Posted by knewblewkorvette
I'm sorry Randy, but I'm pretty sure that a 1st order is considered 6db.
To the orginal poster, use the Infinity crossovers
To the orginal poster, use the Infinity crossovers
http://www.audioholics.com/techtips/...rossovers.html
Racer
Joined: Mar 2006
Posts: 366
Likes: 1
From: Esparto ca
Scott, in parallel it would be 2.66. In series it would be 12. Of course passive xovers are going to add some resistance. Then it gets complicated with frequency and cutoff formulas, but 4 ohm speakers aren't really 4ohm. Their more like 3. 6 or something.
Last edited by adown; Oct 21, 2006 at 08:39 PM.
Racer
Joined: Mar 2006
Posts: 366
Likes: 1
From: Esparto ca
A tweeter with a 1st order xover could introduce as much as 16 ohms at 5000hz and drop power by 2/3. So instead of 100 watts your tweet would see 25watts You would have to know what order the xover is and the target freq.
