posted
If you run them active, you will want a fairly elaborate electronic crossover to control them. A basic one will not give you the capabilities to provide adequate benefits. Look for one that gives you selectable frequencies and gain for each driver. Also, phase switches for the tweets are nice. One of the best I've used was the Sony XEC1000. I'm not sure if it's still made. The XEC700 is about the same, but no rear channels.
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Posts: 17 | From: Virginia Beach, VA USA | Registered: Feb 2000
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If you are going to actively crossover your Dynaudio's. it is CRITICAL that you use a small blocking capacitor wired in series with the MD100 tweeters. The MD100 is VERY sensitive to DC Offset at the amplifier and will NOT work reliably without the Cap in place........
In answer to your question though, try it both ways and see which sounds the best in your system. We typically get superior results using the supplied passive X250 networks and giving the speakers higher power capability to take advantage of their dynamic capabilities.........
------------------ Peter Lufrano - Owner The Autophile http://www.TheAutophile.com
Posts: 100 | From: Berkeley, CA, 94578 | Registered: Oct 1999
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posted
As stated above, both methods would work. My only concern is, can the Passive x-overs of the set take 250 RMS? If so, that's cool!! If you have an external x-over working in conjunction with the amp's on-board x-over, that should allow you to fine-tune those crossover points, so you don't damage the set.
I think you'd be happy either way, but I'd personally go with the 4-channel option. But, that's me .
Jom.. i'll be using the built in Xovers of the PG amp.. 24dB octave slopes
autofile.. my system 220 is the original Mk1, not the current Mk2. the only difference is the passive Crossover.. do you remember it? its a biggest Xover, which you have to use spade terminals not screws. anyhow... can you remember if the original Xover is good?
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Posts: 303 | From: Melb, Australia | Registered: May 1999
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Uncle Ber wrote: "As stated above, both methods would work. My only concern is, can the Passive x-overs of the set take 250 RMS? If so, that's cool!! "
Why would they need to be able to handle 250 RMS? Is the listener going to be playing pure sine wave test tones through the system?
And Jimbo wrote:
" autofile.. my system 220 is the original Mk1, not the current Mk2. the only difference is the passive Crossover.. do you remember it? its a biggest Xover, which you have to use spade terminals not screws. anyhow... can you remember if the original Xover is good?"
Actually there are quite a few differences between the original "MkI" Systems and the "MkII" systems besides just the crossover design. Although these are of the "unseen" variety. Specifically, The drivers have been improved. But depending on when you purchased your MkI system you may have some of the updated drive units as Dynaudio continually improves their drivers without any type of fanfare........
Yes, I remember the older crossover networks. They are very good. Although the newer X250 is an asymetrical filter design using asymetrical slopes with a steeper slope on the tweeters highpass circuit and also tweaked component values which give superior image placement and low level delineation........
------------------ Peter Lufrano - Owner The Autophile http://www.TheAutophile.com
Posts: 100 | From: Berkeley, CA, 94578 | Registered: Oct 1999
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" i think i will use passive for extra power/headroom... i mean the dynas are pretty good."
More that just "Prett good" I think ;^)
" i just hope i got the latter drivers MW150 and MD100 (or was it md150 and mw100) .."
MW150 and MD100..........
" yeah thats the thing with dynaudio.. they dont advertise changes.... nor do i believe they change anything for the sake of it.. hope my mk1 isn't too far behind the mk2"
when were your MkI's purchased? I may be able to tell.........But I wouldn't worry too much about it, the MkI's were no slouch anyway!
------------------ Peter Lufrano - Owner The Autophile http://www.TheAutophile.com
Posts: 100 | From: Berkeley, CA, 94578 | Registered: Oct 1999
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Jimbo all Dyanudio x-overs are rated to take 300wrms, like Autofile said protect the tweeter
------------------ spydermann
Don't get caught in the WEB Gimmie some bass baby keep you RF and others, MTX for me Is that me in the top 10 now?? Do you smell what the BASS is cooking...
Posts: 6799 | From: cincinnati, oh, USA | Registered: Jun 1999
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