2.5 way impedance

Vivek · 15th June 2004, 05:18 PM

Hi,
This question is going to be incredibly stupid. Please bear with me. While building a 2.5 way system using two 8 ohm midbass units, the nominal impedance of the system till the tweeter crossover frequency will still remain 8 ohm, right?
One more thing. Are there any good websites to learn about 2.5 way speaker design?

Thanks,
Vivek

sreten · 15th June 2004, 05:31 PM

No. Its 4 ohm bass and 8 ohm midrange,

sreten.

Vivek · 15th June 2004, 05:34 PM

Thanks for that reply but how does the impedance change?

Vivek

Svante · 15th June 2004, 05:47 PM

Just like Sreten said, it is four ohms for low frequencies and 8 ohms for mid frequencies. At low frequencies, both drivers are effectively connected in parallel, at mid frequencies a series coil effectively disconnects one of the drivers.

sreten · 15th June 2004, 05:48 PM

It changes at the 0.5 way point ~ 350Hz,

sreten.

Vivek · 15th June 2004, 05:51 PM

Got it. Thanks a million.

Vivek

15th June 2004, 05:18 PM	#1
Vivek diyAudio Member Join Date: Nov 2000 Location: Bangalore, India	2.5 way impedance Hi, This question is going to be incredibly stupid. Please bear with me. While building a 2.5 way system using two 8 ohm midbass units, the nominal impedance of the system till the tweeter crossover frequency will still remain 8 ohm, right? One more thing. Are there any good websites to learn about 2.5 way speaker design? Thanks, Vivek __________________ Thank God for DIY audio.

15th June 2004, 05:34 PM	#3
Vivek diyAudio Member Join Date: Nov 2000 Location: Bangalore, India	Thanks for that reply but how does the impedance change? Vivek __________________ Thank God for DIY audio.

15th June 2004, 05:47 PM	#4
Svante diyAudio Member Join Date: Feb 2004 Location: Stockholm	Just like Sreten said, it is four ohms for low frequencies and 8 ohms for mid frequencies. At low frequencies, both drivers are effectively connected in parallel, at mid frequencies a series coil effectively disconnects one of the drivers. __________________ Simulate loudspeakers: Basta! Simulate the baffle step: The Edge

15th June 2004, 05:51 PM	#6
Vivek diyAudio Member Join Date: Nov 2000 Location: Bangalore, India	Got it. Thanks a million. Vivek __________________ Thank God for DIY audio.

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15th June 2004, 05:31 PM	#2
sreten diyAudio Member Join Date: Nov 2003 Location: Brighton UK	No. Its 4 ohm bass and 8 ohm midrange, sreten.

15th June 2004, 05:48 PM	#5
sreten diyAudio Member Join Date: Nov 2003 Location: Brighton UK	It changes at the 0.5 way point ~ 350Hz, sreten.

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