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Multi-Way Conventional loudspeakers with crossovers

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Old 12th January 2003, 06:45 PM   #1
zverina is offline zverina  Slovenia
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Default Tweaking B&W DM 602 s2

HI!

I am planning to do some serious tweaks on my 602's, so suggestions are welcome.

1. new boxes (volume remains the same 22L) made of 25 mm real wood (oak) or 19 mm MDF than coated with 10mm ply of oak wood. Which better?
2. Does the sound change if i change the shape of boxes but volume stays the same? I was thinking of makin' them floorstanders.
3. How would i get a bit deeper bass out of them?
4. Original port seems too narrow (can get quite noisy). If i made it wider how much longer would it have to be? Original 45mm wide and 100 mm long.

Other tweaks: better internal wiring, better crossover caps & MOX resistors... am i forgetting anything???

Do you think these drivers are worth it or should i try something different?
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Old 12th January 2003, 06:46 PM   #2
zverina is offline zverina  Slovenia
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Old 12th January 2003, 06:48 PM   #3
zverina is offline zverina  Slovenia
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Old 12th January 2003, 06:50 PM   #4
zverina is offline zverina  Slovenia
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crappy box
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Old 13th January 2003, 10:07 PM   #5
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How about changing the wire or X-over components?

Edit, Oo you already mentioned that

Okay, what does the x-over look like (what components does B&W use??)
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Old 14th January 2003, 05:55 AM   #6
zverina is offline zverina  Slovenia
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The crossover isn't that bad. It's 2nd order, 4kHz. Inductors are air core, foil caps EVOX MMX on tweeter and unknown yellow on mid/bass.
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Old 14th January 2003, 08:21 AM   #7
Paulr is offline Paulr  United Kingdom
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Default Tweaking B&W DM 602 s2

Just a thought as I'm currently looking at buying speakers to do this with........but have you ever thought about bi-amping & doing away with the passive crossover completely?
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Old 14th January 2003, 11:48 AM   #8
zverina is offline zverina  Slovenia
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I think these drivers deserve much better boxes than these. You would be amazed how loud and still acourate they can play!!! But bass is problematic. At high volume there's too much ''boom''. I don't think bi-amping is the anwser.
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Old 14th January 2003, 12:46 PM   #9
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Do you have the T/S parameters of the woofer?
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Old 14th January 2003, 02:31 PM   #10
zverina is offline zverina  Slovenia
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I wish.

Maybe i'll try contacting B&W.
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