suppressed vocals from 6.5" woofer

speaker_envy · 19th August 2005, 04:54 PM

Hello. I recently replaced the 6.5" woofers in my 2-way speakers. These are generic replacements with no available specs.

Vocals with acoustical accompaniment sounds great, but the pop music vocals (Linda Rondstand, Steve Winwood, Anita Baker) sounded suppress.

I was wondering if I need a woofer with a frequency range that starts lower or a frequency range that ends higher? The crossover point for the speakers is 2k Hz.

Any advice would be appreciated.

RJ · 20th August 2005, 03:02 AM

That's what we like to call - recessed mid's.
Some speakers are forward, others are nuetral.
What's the box size internally?? Width, Height & Depth???
We may find a suitable replacement.
You also know what tweeter you have???

bobhayes · 20th August 2005, 09:54 AM

I would have expected any 6 1/2 inch driver to give decent level output up to at least 5kHz.

Is the replacement driver the same impedance as the original? If you change this fundamental specification, you can shift the cross point of the low pass section and this can boost or cut the midrange output considerably depending on whether the replacement driver is higher or lower impedance than original.

Alternatively the new driver may have less sensitivity than the original one, which would have a similar effect, but the bass might still sound ok due to cabinet alignment which could give you more apparent bass output (say a system Q of 1.5).

I hope someone on this forum with a better knowledge of manufecturers and components can provide you with a suitable replacement.

pinkmouse · 20th August 2005, 10:05 AM

You might also want to try swapping the phase of the drivers. If the new mids are out of phase you could be getting a significant dip at the crossover frequency.

bobhayes · 20th August 2005, 12:37 PM

Pinkmouse saw the obvious solution, whereas I am blind.

If the crossover is a second order type (i.e. has two wire coils and two capacitors), the woofer and tweeter need to be connected OUT of phase to correct the 180 degree shift in the crossover. Either reverse the tweeter or woofer and this could well fix your problem!

On first and third order crossovers, this won't make a difference as they are always 90 degrees out of phase anyway.

Try this first.

19th August 2005, 04:54 PM	#1
speaker_envy diyAudio Member Join Date: Jul 2005 Location: Oakland, CA	suppressed vocals from 6.5" woofer Hello. I recently replaced the 6.5" woofers in my 2-way speakers. These are generic replacements with no available specs. Vocals with acoustical accompaniment sounds great, but the pop music vocals (Linda Rondstand, Steve Winwood, Anita Baker) sounded suppress. I was wondering if I need a woofer with a frequency range that starts lower or a frequency range that ends higher? The crossover point for the speakers is 2k Hz. Any advice would be appreciated.

20th August 2005, 10:05 AM	#4
pinkmouse diyAudio Moderator Join Date: Apr 2002 Location: Chatham, England	You might also want to try swapping the phase of the drivers. If the new mids are out of phase you could be getting a significant dip at the crossover frequency. __________________ Al I conceive of nothing, in religion, science or philosophy, that is more than the proper thing to wear, for a while. Charles Fort

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
"Suppressed Mids" and tweeter / woofer phase?	samtny	Multi-Way	28	26th February 2008 08:41 PM
suspending a small tweeter in front of woofer for "coaxial" effect?	bikehorn	Multi-Way	3	2nd January 2006 02:04 PM
WTB: Focal & Audiom & Volts 11", 12", 13", 15" woofer	gengis	Swap Meet	0	17th March 2005 02:29 AM
cheap 6" or 8" woofer to make great bass for a standard cab pick up	zuki	Subwoofers	12	15th February 2005 07:54 AM
"How can remove vocals ?" - answers :	DORUMALAIA	Everything Else	1	27th May 2003 06:27 PM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

20th August 2005, 03:02 AM	#2
RJ diyAudio Member Join Date: Oct 2004	That's what we like to call - recessed mid's. Some speakers are forward, others are nuetral. What's the box size internally?? Width, Height & Depth??? We may find a suitable replacement. You also know what tweeter you have???

20th August 2005, 09:54 AM	#3
bobhayes diyAudio Member Join Date: Sep 2004 Location: Bungawalbyn, NSW	I would have expected any 6 1/2 inch driver to give decent level output up to at least 5kHz. Is the replacement driver the same impedance as the original? If you change this fundamental specification, you can shift the cross point of the low pass section and this can boost or cut the midrange output considerably depending on whether the replacement driver is higher or lower impedance than original. Alternatively the new driver may have less sensitivity than the original one, which would have a similar effect, but the bass might still sound ok due to cabinet alignment which could give you more apparent bass output (say a system Q of 1.5). I hope someone on this forum with a better knowledge of manufecturers and components can provide you with a suitable replacement.

20th August 2005, 12:37 PM	#5
bobhayes diyAudio Member Join Date: Sep 2004 Location: Bungawalbyn, NSW	Pinkmouse saw the obvious solution, whereas I am blind. If the crossover is a second order type (i.e. has two wire coils and two capacitors), the woofer and tweeter need to be connected OUT of phase to correct the 180 degree shift in the crossover. Either reverse the tweeter or woofer and this could well fix your problem! On first and third order crossovers, this won't make a difference as they are always 90 degrees out of phase anyway. Try this first.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)