Vertical MT, horizontal woofer

fb · 11th October 2008, 10:13 PM

What are the implications of a driver layout such as this (see attached, from K&H O300 ) FWIW this is a highly regarded speaker in electronic music circles.

Will the stereo image jump out to the sides when it gets lower in frequency, or will the wavelengths be too long for it to matter? What about baffle step issues?

This is an 8", 3", 1" design, would there be any issues using bigger drivers - say 12", 6", 1" or 10", 6", 1".

bjorno · 11th October 2008, 11:58 PM

Quote:

would there be any issues using bigger drivers - say 12", 6", 1" or 10", 6", 1".

IMO, No, See picture 1(1).

b

1(1)

fb · 14th October 2008, 09:40 PM

Thankyou -

So the centre-to-centre spacing of the woofer and mid won't cause lobing issues with reasonable crossover points, however I'm still not sure what that means for the stereo image? Will I be able to 'localise' the woofer below 450hz?

Cal Weldon · 14th October 2008, 09:45 PM

Too bad they don't provide mirror image boxes.

fb · 14th October 2008, 09:52 PM

Looks like they make left and right variants (link on right) however this is merely inspiration for my DIY tinkerings.

Interestingly their larger monitors have a removable baffle around the MT section to allow switching between vertical and horizontal.

Cal Weldon · 14th October 2008, 09:55 PM

Thanks, missed that. You should be fine then.

14th October 2008, 09:45 PM	#4
Cal Weldon Speakerholic diyAudio Moderator Join Date: Jan 2004 Location: British Columbia	Too bad they don't provide mirror image boxes. __________________ Next stop: Margaritaville Some of Cal's stuff \| Cal Weldon Consulting

14th October 2008, 09:55 PM	#6
Cal Weldon Speakerholic diyAudio Moderator Join Date: Jan 2004 Location: British Columbia	Thanks, missed that. You should be fine then. __________________ Next stop: Margaritaville Some of Cal's stuff \| Cal Weldon Consulting

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14th October 2008, 09:40 PM	#3
fb diyAudio Member Join Date: Apr 2005 Location: Brisbane, Aus	Thankyou - So the centre-to-centre spacing of the woofer and mid won't cause lobing issues with reasonable crossover points, however I'm still not sure what that means for the stereo image? Will I be able to 'localise' the woofer below 450hz?

14th October 2008, 09:52 PM	#5
fb diyAudio Member Join Date: Apr 2005 Location: Brisbane, Aus	Looks like they make left and right variants (link on right) however this is merely inspiration for my DIY tinkerings. Interestingly their larger monitors have a removable baffle around the MT section to allow switching between vertical and horizontal.

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