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Whatever happened to DCM's Steve Eberbach? - Page 8

post #211 of 1643
Something I copied from a Macrophone eBay auction:

The Macrophone is the bookshelf little brother of the Time Window, Time Frame and QED. These were great little speakers. I used to sell them in the '80s. I actually had a pair of Island Sound Image Masters which was the same speaker marketed under another name, but without the beautiful real wood veneer. DCM was a great company. I knew Bob Waterstripe, he was the owner of the company and his speakers had the best sound and imaging and could be hooked to amplifiers with great power. You can post these comments to your listing if you wish.
post #212 of 1643
I'm about to receive four TW7 tweeters (ordered @ DCM) and a pair of drivers comming from a cx 17
Planning to build a nice center on those drivers, and i'm probably going to transform some other set of CX17's into towers (gonna make them timeframe-ish)
post #213 of 1643
Post some pics of your progress. I'm sure everyone would like to see.

I'm starting to work on a passive sub with a high/low pass filter for the TW7 center using the same Vifa woofer as the Sevens, that will double as a stand. The cabinet design is down on paper as is the crossover schematic. Steve E. has given me some initial input for the preliminary work. The weekend before, I spent most of Saturday afternoon with him fine tuning the design. I will probably start building the cabinet in the next week or two. It will also be finished in piano black. I'll post some pictures at some point.
post #214 of 1643
Thread Starter 
Jamie, that's great !!!

Yet another project that you can do for me.
Can't wait to see that photos.
post #215 of 1643
I'm new to this forum, and have enjoyed my DCM speakers since I bought them new in 1996 and 1997. I originally had TF600's, but after two speaker failures the dealer exchaged them for TF v. 8.0's. I have a SurroundScape center, SUB-710 Compact Sub (a weak link), and used to have CX-07's as my surround speakers. I gave them and my old HK receiver to a family member, and now have Mirage Omnisats as my surround speakers, but they don't really match sonically with my DCM's. A nice Anthem processor & 7 channel amp drive my 5.1 system.

I could really use some help from some DCM experts (like Jamie) to give me some suggestions about DCM speakers for surround speakers. I'm considering CX17's, CX-27's, or TW's (1a's or 3's) because of their unique design. The CX-17's would be a very close match with my center and the drivers in my TF's, but I wouldn't mind the extra bass of the CX-27's since I sometimes listen to music in 5.1 surround sound. My only concern about the 27's is that they are rated at 6 ohms vs. the 8 ohm rating of my other speakers (and the 17's). If I could find TW3's, I think they are also 8 ohms, but are they sonically a match for the other speakers? I thought about finding a pair of v-series TF's, but I've never seen them available on ebay. I could use the TW's for the mains, and switch my TF's to surround duty. Would that make sense, and am I overly concerned about the ohm ratings? Replacing the compact sub with a decent sub will fix that issue, but I could really use some good advice about my surround speaker confusion.

Thank you!
post #216 of 1643
Johnny20, welcome to the group.

If you looking to invest in a unique system for home theater use and really like the DCM sound, I would look for a set of TimeWindow Three's for your mains, and move your TF v. 8.0's for surrounds. Then I would look for a second set of Three's for surrounds, if not the 1a's with do nicely but I would raise them up to the same level as the Three's. Where the TimeWindow Three lend themselves nicely for home theater use is that with their dihedral face they put out a direct (inboard face) and an indirect (outboard face) sound field. The advantage that the Three's have over the 1a's (besides being a point source speaker like your SurroundScape Center) is that you can adjust the output level between the direct and indirect field. If you adjust them to where the direct field is higher, anyone sitting off center will get the same effect as someone setting on center. On the Seven's it's fixed at 6 dB lower on the outboard drivers. Nice when you have more than one seat in your first row! That Steve is a smart guy.
The TimeWindow also make excellent surround speakers because of the same dihedral face. You need to point them at each other when used as surround speakers. Because they are a dual wave design, they are somewhat like a dipole. I used the Three's and 1a's in this configuration until I found a set Seven's for the mains and moved the Three's to the rear as surrounds.
There is a set of Three's on Ebay right now, be prepared to pay possibly over $500.00 plus shipping for them. They're more than worth it.

http://cgi.*********/DCM-Time-Window...QQcmdZViewItem

There is a set of DCM OW1 wall mount speakers also. I use the OW2's in black for back surrounds.

http://cgi.*********/DCM-OW1-BIPOLAR...QQcmdZViewItem

Happy hunting. Jamie
post #217 of 1643
Thread Starter 
Hey Jamie and photos yet?

I have recently consolidated my two HTs into one. I hope to move my Threes to the surround position this weekend. Do you have yours with the "inboard" faces towards the main listening area or the entire speaker itself pointed towards the main listening area?
post #218 of 1643
Thanks Jamie!

I really appreciate your help. You confirmed what I was guessing about the TimeWindows ... that they will work in a similar way as dipole speakers. I'll keep track of those three's for sale.

As I was listening to some music last night, thinking about how great each song sounded, I couldn't help but wonder how the sound would be with the set-up you suggested. I hope I can acquire a nice pair of TimeWindows soon to really spice things up!

Thanks again for your help, and I'll post back later with my results.
post #219 of 1643
Tracy, they have to point directly at each other from either side of the room with the direct sound field side facing the listening area and the ambient side pointing to the rear wall. Look at the attached image. The letter "D" denotes the direct sound field. The rear surrounds are at the top of the image and the mains and center at the bottom.
LL
post #220 of 1643
Also here are a couple of pictures showing the crossover schematic and the side profile drawing. The top part of the drawing shows the TW7 Center that was built previously and the new sub section underneath. The sub section will be 20 wide to match the center speaker that sits on top of it. The crossover schematic shows the complete circuit for both the center and the sub. The additional components are the 441uf cap and 8 ohm variable resistor just before the midrange driver which will be added to the center's existing crossover. The top part of the schematic shows the new components for the woofer.
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post #221 of 1643
Looks good jamie, cant wait to see some pics
post #222 of 1643
Thread Starter 
Jamie thanks for the diagrams.

I am happy to see that you are building the sub enclosure along with the TW7C. I have often wished for a center that could truly keep up with my Sevens. The lack of compatible bass handling has always been an issue with me and center channel speakers. I have a big room now and I hate running my center as a small speaker. To me it just doesn't sound as good as running it full spectrum.

I was watching Live Free or Die Hard a couple of nights ago. There were a few scenes that I was a bit worried about my CX-17 center and my Threes. Thus the reason for me adding the Sevens to the big theater as my mains.

Looking forward to seeing more. Thanks as always.
post #223 of 1643
I just found this; thought some of you might be interested: http://cgi.*********/DCM-Timeframe-L...QQcmdZViewItem

I'd be VERY interested, but i live in Europe so shipping is probably going te be really high..

Edit: why can't i link to ebay?
Whatever; item number 160208860742
post #224 of 1643
Thread Starter 
I think that linking to an Ebay auction is prohibited on AVS.
post #225 of 1643
ah, k .. sorry
post #226 of 1643
I just received my cx17 drivers and tw7 tweeters

I haven't really tested them out yet, but the TW7 tweeters seem more efficient than the standard cx17 tweeters.
I'll try if it sounds good without modifying the cross-overs, otherwise i'll digg up some tw cross-over schedules

Also i'm busy making plans for two tower and center cabinets for these precious cx17 drivers
post #227 of 1643
I promised Jamie that I would post pictures after I finished recovering my speakers. What ended up happening was that I used the cloth Jamie sent me as a template to make my own. I also replaced all of the tops and bottoms of the speakers as they were all warping outwards and one had started to develop a crack. The first few pictures here are of me stripping down and cleaning the speakers.
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post #228 of 1643
The tops were done by a friend of mine. They are each made of three joined pieces of red oak with a 15 degree bevel on the sides. After they were cut, they were stained and treated with linseed oil and a few coats of poly. The hardest part was probably lining them up to get the new plywood inserts and t-nut holes lined up. That took a lot more effort than you'd think.

Oh and one of the pictures shows a comparison between the original top and the new one. The color is a bit off from the camera but you kind of get the idea.
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post #229 of 1643
The next step was for me to replace the caps on the crossover and give the board some better dampening. After that, I applied dampening material to the backs of the speakers. They're made of some sort of vinyl copolymer material. In the next picture, you can see the old speaker and top next to the new speaker cloth and top. The cloth was from partsexpress and it was sewn straight along an edge. I have to thank Jamie for giving me the guts to even start this makeover after he sent me his old cloth. I wanted to really do this right since the speakers are really great.
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post #230 of 1643
The last few pictures are of me attaching the cloth and the final product. I think they both look pretty good. I moved both my TW3's and TFE200's to a corner to get better lighting.

I'm currently working on a DIY speaker. It'll use Vifa drivers crossed over at 3kHz with a 3rd order filter and a mid sized bookshelf cabinet tuned to around 48Hz. Should be some more DIY fun.
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post #231 of 1643
Lovely!! great job!

I see you also have a pair of timeframe evolutions, how do they compare to the original timeframe's and windows?
post #232 of 1643
Thread Starter 
WOW those Threes look brand new. I wish I was that brave. Mine are still in good shape but I would like to put black cloth, tops and bottoms on mine so they will match my Sevens.
post #233 of 1643
Hi,

I have a never used, unopened box TW3 Left unit.

Do you guys know anyone who may need one or has a "right" unit for sale.

I've owned this for several years, hoping to one day find a match.

I would appreciate any input you can share with me.

Thanks!
post #234 of 1643
Thread Starter 
Quote:
Originally Posted by Robe7 View Post

Hi,

I have a never used, unopened box TW3 Left unit.

Do you guys know anyone who may need one or has a "right" unit for sale.

I've owned this for several years, hoping to one day find a match.

I would appreciate any input you can share with me.

Thanks!

Man that would make one SWEET center channel speaker.
post #235 of 1643
Quote:
Originally Posted by Tracy RainH2o View Post

WOW those Threes look brand new. I wish I was that brave. Mine are still in good shape but I would like to put black cloth, tops and bottoms on mine so they will match my Sevens.


Those look really sweet,...You did a great job Formfactor........and thanks for posting up your DCM restore.....
post #236 of 1643
I know...I've been thinking about using it for a center channel speaker.
post #237 of 1643
Formfactor, very nice job on the TW3’s. Which caps did you replace, just the electrolytics? You should be good for a least another ten years.

Sorry guys, the TimeWindows do not make a very good center channel speaker. I already asked Steve.

Keep those babies in service! They’re built to last.
post #238 of 1643
I must say that I have enjoyed each and every post....And I would especially like to thank Jamie Hauser, and others,..for the help and information they bring to this DCM thread...

I have some TW3 that have been in my family sense they were new....I got them from my uncle about 10 years ago,..and I must say,..that they are without a doubt the sweetest sounding speakers I have ever Owned....

I will post some pics tomorrow...

EX speakers....HPM 100s, Klipsch Heresy's, Bose 901,....and not mine, but I got to use them for about 6 months, JBL 4311's.....

Michael
post #239 of 1643
Thanks for the comments guys. I had a lot of help from the advice Bob D. gave me but I haven't heard back from him in a while. I hope he's doing ok.

The new DCM TFE200's are a pretty impressive set of speakers. They don't have the classic laid back DCM sound that the old CX, TW, TF series speakers have, but they're still very good. They seem much brighter than the TW or TW3's and I don't think it's simply due to the higher tweeter placement. The bass response is nothing short of impressive and will put most subs to shame, even across the entire floor of my unfinished basement. Overall, I'd characterize them as a very smooth sounding speaker with excellent treble and bass response.


Their stereo imaging is excellent. The sound just seems to float around the speakers although the speakers don't quite dissappear like the TW's do. In my opinion, they're not as transparent as the TW's. They have spooky imaging but I always find it easier to convince myself the sound is live with the TW's as opposed to the TFE200's. Things do sound a bit cleaner and crisper in the higher frequencies though.

They're also very rigid speakers, being made from thick, amply braced MDF cabinets. They weigh a ton. The midrange woofer is in a sealed chamber above the two ported woofers. I checked out the crossover and wiring and while it's not as complex as anything you'd see in a TW, they're built nicely and cleanly with quality parts. A good buy at their retail price and a great buy if you can find one second hand.
post #240 of 1643
Thread Starter 
For those in the market......

There are a pair of "fixer-upper" Threes on Audiogon right now for $150.
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