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Plan for a cabinet for B200 T27 DN 13 SP 1106

 
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Manfred
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Joined: 18 Mar 2008
Posts: 5
Location: Germany

PostPosted: Sat Mar 22, 2008 9:34 pm    Post subject: Plan for a cabinet for B200 T27 DN 13 SP 1106 Reply with quote

Hello
I am new to this forum, and as I have not found what was looking for I now write. I have a problem:
twenty-five years ago a friend of my young son destroyed the cone of my loudspeaker and I bought two B 200 T 27 DN 13 SP 1106 and fitted everything to the old cabinets with a new front plate. The people where I bought everything had no loudspeaker-plan, therefore I used the cabinet of the destroyed loudspeakers. As I was never sure if it was the best possible cabinet, I now want to build a cabinet just for those drive units. My wish does anyone have a plan for a cabinet for those units, woodwork is no problem for me as I nearly build all furniture myself.
Thank you for the help
Manfred
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ColinR
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Joined: 31 Jul 2004
Posts: 1175
Location: Staffordshire

PostPosted: Sun Mar 23, 2008 12:06 pm    Post subject: Reply with quote

Plans on this site

http://www.hifiloudspeakers.info/Anatomy/Articles/ArticlesGallery/WWBookshelf/index.htm

Ignore the drive units used and the electronics, just build the box.

Elsewhere on the internurd

Bottom of Page 4

http://www.falcon-acoustics.co.uk/ Chorale Cabinet Upgrade Sheet.

This shows the dimensions of the KK1 box plus an additional cavity resonator.

My house Very Happy

A Swiss chap is building a pair of Tangent TM1's from here

http://www.thunders.ca/tangent/tm1.php

plus a few more dimensions from me Wink .

I have a (rather good) pair of transmission lines which you can have photographs of with the positions of the dividers maked, if you're really good at woodwork Smile .
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Manfred
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Joined: 18 Mar 2008
Posts: 5
Location: Germany

PostPosted: Tue Mar 25, 2008 11:43 am    Post subject: Reply with quote

Hello Colin thanks for the help, I still have some questions, is the position of the speakers really so important, on the chorale the T 27 is more to one side, on Tangent they are in the middle of the front baffle, has the TM 1 a better bass then the TM 3, what pair of transmission lines do you have please send a photo.
Thanks Manfred
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ColinR
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Location: Staffordshire

PostPosted: Tue Mar 25, 2008 3:23 pm    Post subject: Reply with quote

Regarding the position of a tweeter next to a bass unit, for the best polar plots as close as possible (or coincident) is the best practice.

KEF Chorales were volume products so a “handed” product would involve more equipment, time and cost.

Tangents were more upmarket so an inline arrangement was produced.

The TM1 provides a couple of bottom octaves more than the TM3, but both have pinpoint imagery.

Photo sent Very Happy .
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Manfred
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Joined: 18 Mar 2008
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Location: Germany

PostPosted: Mon Mar 31, 2008 4:17 pm    Post subject: B200 T227 Cabinet Reply with quote

I am interested in the TM3, I think bass performance is a bit overvalued today.
Could you please give me some more information on the TM3 and what are the best stands for this loudspeaker?
Thank you for your help
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ColinR
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Location: Staffordshire

PostPosted: Wed Apr 02, 2008 4:57 pm    Post subject: Reply with quote

Job done Very Happy .
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Manfred
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Joined: 18 Mar 2008
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Location: Germany

PostPosted: Fri Apr 04, 2008 8:06 am    Post subject: B200 T227 Cabinet Reply with quote

Thank you very much for your information and the photos. I decided in favour of the TM3's because they have such a small front baffle area, the others were wider with a lot of frontal area. I have some more questions, what are dampsheet panels, is it a good idea if I take instead of chipboard, 2" multiplex wood (this is a bit similar to plywood but a lot more dens it is used on construction sites for the boarding of exposed concrete) and if I don't use a grille, I want a flat front surface with rounded edges, can I use my KEF dividing network DN 13 SP 1106?
My amplifier is dying and I have to buy a new one what would you propose for these loudspeakers, I have a Thorens TD 150/II a NAD 5440 and an Uher Report
Thanks for your help
Manfred
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ColinR
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Location: Staffordshire

PostPosted: Fri Apr 04, 2008 10:18 am    Post subject: Reply with quote

Dedshete is the trade name for self-adhesive bitumen damping panels.

You can pay over the odds for this material if you look in the "wrong" place; kit-car and car customiser automotive suppliers is a "better" place to start looking Wink .

2" thick panels may be as dead, I would be if I tried to lift them Smile .

Try the SP1106, if it works fine if not build a copy of the Tangent circuit or buy one from www.falcon-acoustics.co.uk with an aB tweeter section.

I don't know much about the German secondhand market but a >50 Watt rms amplifier will work well with the design.
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Last edited by ColinR on Fri Apr 04, 2008 2:28 pm; edited 1 time in total
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Manfred
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Location: Germany

PostPosted: Fri Apr 04, 2008 12:42 pm    Post subject: B200 T227 Cabinet Reply with quote

Sorry it was 1" thick panels, now I know those dampsheet panels I used them to make my Mini a bit more quiet. When the loudspeakers are ready I will send some photos.
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