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DCM TF600 question...

KentFJ said:
Do you happen to have pictures of the placement of the rear tweeters ? I looked through this thread and did see any if you have could you post please :) thanks Kent
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Dug through my images and didn't find one like you asked. I see, however, that a couple posts here include images. I will say that the ones on the pair I worked on were NOT very well installed. In fact down right poorly. I would use caution removing them, if you choose to do so, and reinforce the cutouts with wood putty or something similar. They were NOT very solidly in place and likely would have some impact on performance as I believe they share the same air "space" as one of the woofers (maybe both?). This is preciesly one of the reasons I'm not fond of particle board, and sometimes even mdf. Hole placement on many speaker frames does not often allow for much "wood" to drill holes into, much less the screw to "bite" into. Nice when drivers have fairly large "lips" so that T-nuts can be used for better grip. I prefer plywood, but even cheap plywood can be weak or breakup. Just something we have to live with (contend with) when it comes to most speakers.
 
Thanks for the help . I really am thinking of cutting cabinet that would look good with out sock . I have most of the parts to make TF 600 ( no rear tweeters will need to get 4 or 6 from part express or build the CX27 ...

27 would be easier but The 600's sound so good :) I would like to make veneered version No Sock ...

will post if I get it made ....:music:
 
Interesting idea. Just remember, it's a transmission line enclosure. The cabinet was designed with folds and dimensions necessary to maximize bass response.


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KentFJ said:
Thanks for the help . I really am thinking of cutting cabinet that would look good with out sock . I have most of the parts to make TF 600 ( no rear tweeters will need to get 4 or 6 from part express or build the CX27 ...

27 would be easier but The 600's sound so good :) I would like to make veneered version No Sock ...

will post if I get it made ....:music:
Click to expand...

When I had my 600's I had thought about removing the sock and veneering the front. Might be something to consider since you could keep the original transmission line design intact.
 
In one of HJames post she has pdf with design of tf600 I am sure I can include the transmission line dividers :) I do have a pair if need to look.
they are pristine don't really want to take sock off. but will if I need to :)
 
I need to re-sock mine. I'd like to use an off white cloth and paint the end caps a bright gloss red. I have it in my head that this is a good idea and they would look good. :scratch2: My wife thinks I'm crazy. :D

cubdog
 
Wolverine said:
When I had my 600's I had thought about removing the sock and veneering the front. Might be something to consider since you could keep the original transmission line design intact.
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veneering the front will undoubtedly change the sound of the speakers. Again, the headliner and socks were designed to reduce diffraction and improve the imaging. Replacing with a hard surface may result in a negative effect. If the speakers were repackaged in a new enclosure with a very narrow front baffle, then you might do with a hard enclosure. But I would advise covering the front of that enclose with felt or some other absorptive material as well.
 
Could be a fun project, but I'm not sure it's possible to make significant changes to the design (including getting rid of the sock/headliner foam) without reducing the speaker's performance. Consensus seems to be that any mods (other than perhaps upgrading to higher quality caps) are much more likely to hurt rather than help sound quality. I suspect the crossover is the primary obstacle to any useful DIY mods. It is fairly complex and optimized for the OEM design to produce the desired time-alignment, imaging, and sound signature. I'd actually be interested in seeing what a good DIY builder would come up with if they created a DCM-inspired design using modern design tools, drivers, and cabinet aesthetics.
 
I plan on using crossovers from tf 600 , I just bought via barter town .
I have complete driver set from cx-27 same as tf 600 will need to use replacement tweets on the rear so figured I would change out coaxial tweet . I will more then likely cut it from veneer covered MDF if I can fin decent here in Visalia, Ca. I rewrapped TF350 ( headliner material ) after I replace surround with new foam. I burned them in before I put on headliner material on.
I couldn't tell any difference . but then again my ears are old :)

I figure the foam was but on to make the socks fit better and not snag on the
cabinet ... just a opinion and you know what that's worth :)

any ways I hope to try it out just for the heck of it . Really like both the TF 600 and CX 27 if it doesn't work out I will make CX27 cabinets and transfer the drivers with correct crossover to it ?

thanks everyone for the help and especially the link to AVS pg I knew I saw it there but could not find .

Kent
 
KentFJ said:
I plan on using crossovers from tf 600 , I just bought via barter town .
I have complete driver set from cx-27 same as tf 600 will need to use replacement tweets on the rear so figured I would change out coaxial tweet . I will more then likely cut it from veneer covered MDF if I can fin decent here in Visalia, Ca. I rewrapped TF350 ( headliner material ) after I replace surround with new foam. I burned them in before I put on headliner material on.
I couldn't tell any difference . but then again my ears are old :)

I figure the foam was but on to make the socks fit better and not snag on the
cabinet ... just a opinion and you know what that's worth :)

any ways I hope to try it out just for the heck of it . Really like both the TF 600 and CX 27 if it doesn't work out I will make CX27 cabinets and transfer the drivers with correct crossover to it ?

thanks everyone for the help and especially the link to AVS pg I knew I saw it there but could not find .

Kent
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I have some reservations on this. I'm pretty certain the socks/foam are functional and not just cosmetic. When you have such a large surface area you'll have reflections. Since these speakers are relying on rear facing tweeters for depth and imaging, the last thing you want to do is add reflections from the front of the baffle.

There are more experience people here, especially DCM owners, who might want to chime in and comment on my opinions.

What I'm thinking will happen will be akin to "echo". You'll have sound emanating from the rear, out of synch with the sound reflecting from the baffle. Might be OK for live performance material, but studio records will likely not sound quite right.

Just my thoughts.

Visually, I like your idea, but I'm thinking the sound may not be what you are hoping for.
 
baco99 said:
Copa- your intuition is correct.


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Good to hear. I would have liked to have spent more time with them but the owner was selling them. Should ask him if he ever did. Wouldn't mind test driving them in a proper setting.

Thanks for the confirmation.
 
Hello guys!

Just want to ask what could be the issue with my TF600, because iI am hearing some buzzing on the other speaker particularly the woofer part whenever I play songs with deep bass. The other side is all good.

Thank you all in advance.
 
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