I've just started building the 3w Classic, some progress
pictures can be found here. Will add more pics as I go along, so far
so good. My first DIY project and can't wait to finish
them! Thanks for sharing your projects!
Swift reply! Yeah, I've chamfered it a little but it
needs more after I reread the article, thanks for
pointing that out to me!
best regards, Jonatan Prins
I have arrived at the damping stage, put some sheepwool
in and line all walls with egg plate things 60mm. Was
wondering if you had any advice on this. Was this a bad
idea? does overdamping kill the sound eg make it less
spacial? The air can flow, but at some points the tunnel
is a bit small. Especially next to the midrange cab.
would it be better to use all sheepwool on the walls
except on the back and use a combination of sheep and egg
plate material? Would have to buy some more materials so
I'd like to know your opinion on this if you have the
time to do so :P. Some listening tests sound a bit boomy,
haven't used a proper source or amp on those though and I
placed them on resonating wooden table without spikes and
the back standing lose so air can not only escape from
the port but also from the sides, so disgarding the boomy
sound for now, closed cab listening test next weekend,
Also, I will try to take the speakers into a local
audioshop and compare it to some speakers there. Also to
try it on different tube amps like the audionote kits, I
hope I have time for this soon. I'll report back to you
when I do!
Thusfar a very rewarding project, I am really getting
more and more excited about the DIY world! I will update
the pictures soon.
I little update.
I've decided to remove the 60mm Foam and replace it with
2mm bitumen pads and 10-20 mm wool lining to keep the
volume somewhat intact, I felt the 60mm foam made the
sound boring and just not as detailed. The midrange had
quite some wool in it's 2.2L cab which also kinda killed
the soundstage and made it quite boring, removed all of
it wich made it a little too light, so stil
experimenting. Don't have an easy tool to do the
chamfering so I use a chisel. think I'll chamfer some
more also since the CA12 is a very light unit and all the
screws which are used to hold it are more then enough so
I am trying to find the smallest but strong enough margin
to hold the speaker. Does chamfering of the woofer do
anything good for the sound? Considered doing that a
Still enjoying this project _alot_ and looking into the
JA8008 in a TQTW setup for a next project, still future
talk though, probably not untill the summer, at least. I
am getting way ahead of myself here;p.
Thanks again for all the quick responses! Regards,