My first 186 build, A/B test with Earthquake B36 |
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RemyK
Registered User Joined: 02 May 2016 Status: Offline Points: 37 |
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Posted: 03 May 2016 at 11:39am |
Hello,
I started with the building of the 186 loudspeaker cabinet.
Calculating the wood package and let saw.
Today started drawing on the side plate. This is a test case, so therefore I make this copy in MDF and not in plywood I want him in A/B test compare with the Earthquake B36 I previously have built. (pictures from the Earthquake B36 in this post below) I have bought this speaker: RCF lf18g401 http://www.rcf.it/products/precision-transducers/low-frequency-transducers/lf18g401 I also like to buy the same speaker inside the 186 cabinet I am now building. I see the 1850 cabinet is the same, only different chamber size. Is there anyone ho can help me with fine tuning the chamber for my speaker ? I think I have to adjust just 1 panel to make the chamber bigger or smaller (just like the difference for 1850 and 186 cabinet) I like simulation plots , what will be the tuning frequency? Of course I will post photos of the building Thanks in advance Edited by RemyK - 03 May 2016 at 11:57am |
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RemyK
Registered User Joined: 02 May 2016 Status: Offline Points: 37 |
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The drawing is almost done for the panels.
don't know the exact chamber size for my speaker yet, At this point I need to know the final 'chamber volume panel' placement. still hoping for someone to calculate the exact size for my speaker, if no one respond, I have to proceed with the normal 186 chamber size i guess. I think this is also good, buy maybe its just a little better with the exact sizes for my speaker. |
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mobiele eenheid
Old Croc Joined: 15 August 2004 Location: Netherlands Status: Offline Points: 1568 |
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Just use the full chamber, the LF18G401 won´t mind. There´s basically only 2 tunings, the 1850 horn and the 186 horn, any more varieties for a front loaded horn would be over the top imo.
Johan |
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all bass
Old Croc Joined: 11 October 2012 Location: the Netherlands Status: Offline Points: 1855 |
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Database simulations
I believe the rear chamber volume formthe 186 is wrong though. It should be bigger than the 1850 horn... |
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https://www.instagram.com/my_modular_journey/
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RemyK
Registered User Joined: 02 May 2016 Status: Offline Points: 37 |
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If i look at the plans the 186 horn chamber is bigger then the 1850 horn chamber !
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RemyK
Registered User Joined: 02 May 2016 Status: Offline Points: 37 |
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Day 2 :
I use screws 4x45 mm for the main panel connections. first 4mm drill and then pre-drill 2,5 mm in the panel I want to connect. to flush the screws i use a 7mm drill, just a few mm in the panel. glue is: Bison professional houtlijm extra (water bestendig) Edited by RemyK - 04 May 2016 at 10:35pm |
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VECTORDJ
Young Croc Joined: 11 June 2006 Location: United States Status: Offline Points: 515 |
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More! More!!
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RemyK
Registered User Joined: 02 May 2016 Status: Offline Points: 37 |
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Day 2 :
lol, maybe a little bit over the top with the Glue clamps (last picture) Edited by RemyK - 05 May 2016 at 7:24pm |
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all bass
Old Croc Joined: 11 October 2012 Location: the Netherlands Status: Offline Points: 1855 |
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Good job on this build. Keep those pics coming!
Not enough proper build threads here lately. |
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https://www.instagram.com/my_modular_journey/
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RemyK
Registered User Joined: 02 May 2016 Status: Offline Points: 37 |
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This is my second speaker build ever. (first one also in this post) Not in the wood sector what so ever. I'm learning as i go.... question for tomorrow, do I have to make any bracing in or around the chamber?
Edited by RemyK - 05 May 2016 at 7:29pm |
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RemyK
Registered User Joined: 02 May 2016 Status: Offline Points: 37 |
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Today not much work on de cabinet ! I have to wait for the glue to dry .... Maybe I have to buy some more glue clamps to work quicker... Edited by RemyK - 06 May 2016 at 10:53pm |
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corell
Young Croc Joined: 19 August 2013 Location: Berlin Status: Offline Points: 1161 |
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save that t nuts with anything (glue or tacker clips), its a pain to get the chassis out if they get lose someday..
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