black and white

brian t · « **on:** 30 May 2011, 03:26 pm »

recently brought a valve amp so i thought i would make some speakers to go with it

.

brian t · « **Reply #1 on:** 30 May 2011, 03:32 pm »

going for fully open baffle here is the basic outline

brian t · « **Reply #2 on:** 30 May 2011, 03:34 pm »

here is my home made circle jig

brian t · « **Reply #3 on:** 30 May 2011, 03:38 pm »

baffle is made out of 3 sheets of mdf not only to get it nice and rigid but it allows you to hide the t nuts and cables between the layers and just gives it a cleaner look

brian t · « **Reply #4 on:** 30 May 2011, 03:43 pm »

when dealing with mdf i have found it best to treat the wood first before you put the primer on i use a wood hardner it tends to keep the mdf stable with less problems later when painting

brian t · « **Reply #5 on:** 30 May 2011, 03:48 pm »

have routed out a space for the xover in the base to keep it out of sight.

brian t · « **Reply #6 on:** 30 May 2011, 03:52 pm »

xover components all 3 !

studiotech · « **Reply #7 on:** 30 May 2011, 03:54 pm »

Looking sweet so far....althought, I think you are going to need more of a crossover to get a decent response.

Greg

brian t · « **Reply #8 on:** 30 May 2011, 03:59 pm »

finishing process, plenty of primer and 15 cans of white gloss, why 15? in my experience with speakers like this that are a bit of an odd shape it is all to easy to rub through the finish when sanding and it just gives you more material to work with when sanding the finish prior to bringing it back up to a gloss finish

brian t · « **Reply #9 on:** 30 May 2011, 04:07 pm »

cheers greg am happy with the sound as it is, still running the drivers in only finished them a couple of days ago

brian t · « **Reply #10 on:** 30 May 2011, 04:14 pm »

drivers are alpha 15a/ tangband 1808/ b&g neo 3 which is not screwed to the cabinet but floats on silicone to give it a bit of isolation without going over the top with springs etc transients are really clean so i think its been a success

brian t · « **Reply #11 on:** 30 May 2011, 04:18 pm »

i have taken the back off the tweeter so this is fully open baffle

brian t · « **Reply #12 on:** 30 May 2011, 04:37 pm »

The sound is very transparent a bit bright at the moment need to get more hours on the tangband the only negative i have which i expected is the bass is a bit shy, but its more then made up for by pitch definition and timing its much better than my normal speakers anthony gallo 3.1 at the moment i dont think i will be going back to them to my ears these are in a different class. the most outstanding part is how it portrays double bass unbelieveable performance really great on diana krall cds

Jazzman53 · « **Reply #13 on:** 30 May 2011, 04:39 pm »

Great work! Very clean and elegant...
I like your circle jig and the tip on the wood hardener for MDF too.
BTW, if you like Diana Krall, check out Connie Evingson.
Jazzman

brian t · « **Reply #14 on:** 30 May 2011, 05:02 pm »

jazzman thanks i will check her out,still in the process of making a rear support for the baffle trying not go down the large piece of wood support that most designs use as i want to keep the rear as minamalist as possible, have a few ideas.

brian t · « **Reply #15 on:** 30 May 2011, 05:28 pm »

thanks go to scorpion and his exploits for providing the inspiration for this project i claim no originality for the basic design just my artistic interpretation and i have used the tangband instead of the b200 and a tweeter just to help out at the top end 10k onwards still voiceing it at the moment but so far am very pleased with the results cant see me returning to box speakers!

mcgsxr · « **Reply #16 on:** 30 May 2011, 05:38 pm »

A well thought through design, and a lovely implementation.

Wish ANY of my speakers looked that good!

Nice work, and thanks for sharing.

brian t · « **Reply #17 on:** 30 May 2011, 06:04 pm »

thanks, yep thats the most time consuming part the paintwork unless you have an industrial spray booth /filtration/temperature control/spray gun etc you have to do it the hard way get plenty of paint on then flatten it all down with 400/800/1200wet/dry then 3m 50417 cutting compound its great stuff removes all the 1200 grit marks after that fine cutting polish and if you want to go all out top off with harley carububa wax. this is best way i have found, all this was done outside just to show a reasonable finish can be acheived without expensive equipment.

brian t · « **Reply #18 on:** 30 May 2011, 06:36 pm »

hope no ones getting bored yet !

lowtech · « **Reply #19 on:** 30 May 2011, 06:49 pm »

Quote from: mcgsxr on 30 May 2011, 05:38 pm

A well thought through design, and a lovely implementation.

All I see in this thread is one cap, one coil and a bunch of pretty pictures. Perhaps you are correct, but based on what I see in this thread there is no way to come to that conclusion.

Maybe the OP would like to share some details of his design (other than how the paint was applied to the baffle)?