Tweaking B&W DM 602 s2

zverina · 12th January 2003, 06:45 PM

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?

zverina · 12th January 2003, 06:46 PM

side view

zverina · 12th January 2003, 06:48 PM

front

zverina · 12th January 2003, 06:50 PM

crappy box

Duck-Twacy · 13th January 2003, 10:07 PM

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??)

zverina · 14th January 2003, 05:55 AM

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.

Paulr · 14th January 2003, 08:21 AM

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?

zverina · 14th January 2003, 11:48 AM

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.

Duck-Twacy · 14th January 2003, 12:46 PM

Do you have the T/S parameters of the woofer?

zverina · 14th January 2003, 02:31 PM

I wish.

Maybe i'll try contacting B&W.

13th January 2003, 10:07 PM	#5
Duck-Twacy diyAudio Member Join Date: Oct 2002 Location: Holland, The Hague	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??) __________________ Is that all there is?

14th January 2003, 08:21 AM	#7
Paulr diyAudio Member Join Date: Nov 2002 Location: S.Yorks, UK	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?

14th January 2003, 12:46 PM	#9
Duck-Twacy diyAudio Member Join Date: Oct 2002 Location: Holland, The Hague	Do you have the T/S parameters of the woofer? __________________ Is that all there is?

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14th January 2003, 05:55 AM	#6
zverina diyAudio Member Join Date: Dec 2002 Location: slovenia	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.

14th January 2003, 11:48 AM	#8
zverina diyAudio Member Join Date: Dec 2002 Location: slovenia	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.

14th January 2003, 02:31 PM	#10
zverina diyAudio Member Join Date: Dec 2002 Location: slovenia	I wish. Maybe i'll try contacting B&W.

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