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Hoffman Amps Forum image Author Topic: Speaker baffle attachment methods  (Read 33067 times)

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Offline Apexelectric

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Re: Speaker baffle attachment methods
« Reply #50 on: January 12, 2018, 07:22:28 am »
One down and one to go. Need to break in the speakers a little but sounds great so far. I took a short cut with the back panel and didn’t cut the holes in the bottom panel, bassman style. Not sure how much difference it would make?
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Offline Ed_Chambley

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Re: Speaker baffle attachment methods
« Reply #51 on: January 12, 2018, 10:43:18 am »
Very nice looking builds.  Congrats!

Offline jjasilli

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Re: Speaker baffle attachment methods
« Reply #52 on: January 12, 2018, 02:50:49 pm »
 :thumbsup:

Offline Willabe

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Re: Speaker baffle attachment methods
« Reply #53 on: January 13, 2018, 01:23:11 pm »
Looks great!  :icon_biggrin:

Offline madnis

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Re: Speaker baffle attachment methods
« Reply #54 on: January 13, 2018, 02:25:30 pm »
VERY NICE INDEED!


So...
Floating front baffle, yes/no?
front load?


I like (multiple) options where they can be
implemented, i.e. the dipole (open back),
ported (the bass reflex) and sealed (the infinite baffle).
etc.


Are you going to lacquer the crap
out of it?  :wink:
« Last Edit: January 13, 2018, 02:32:17 pm by madnis »

Offline Apexelectric

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Re: Speaker baffle attachment methods
« Reply #55 on: January 13, 2018, 06:51:21 pm »
Floating baffle, rear load. Not sure on the lacquer, thought about it. Need to get it out for a concert next weekend so probably won’t have time till a later date to do it if I do.
It's never a dumb question if it prevents a dumb mistake.

Offline bnwitt

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Re: Speaker baffle attachment methods
« Reply #56 on: January 27, 2018, 05:56:00 pm »
I put Zinser Bullseye amber shellac on all of my tweeds and then lacquer  Makes them look great and protects the tweed a bit from water and fraying.
« Last Edit: January 27, 2018, 06:03:32 pm by bnwitt »
Guides on your quest for tone.
 Oh yeah, and I'm usually just kidding so don't take me too seriously.

Offline Apexelectric

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Re: Speaker baffle attachment methods
« Reply #57 on: January 28, 2018, 08:00:42 am »
I put Zinser Bullseye amber shellac on all of my tweeds and then lacquer  Makes them look great and protects the tweed a bit from water and fraying.
How many coats of each one do you apply?
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Offline sluckey

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Re: Speaker baffle attachment methods
« Reply #58 on: January 28, 2018, 09:32:44 am »
I'm also fond of Zinser. Brush on one coat of Amber shellac (mixed 50/50 with denatured alcohol). Very easy to apply and dries fast. Brush on additional coats if you want it a bit darker. I've never needed more than two coats of Amber. Once the color tone is what you want, switch to Zinser clear shellac (mixed 50/50 with denatured alcohol) for additional top coats. I'm usually happy with a total of four coats. The beauty of shellac is that years later you can brush on a renew coat. The fresh coat melts into the old coats and looks good as new.

These two tweeds have Zinser on them. The one on the left has two coats of amber and two coats of clear. The one on the right has three coats of clear. A couple years later I added two coats of amber to the one on the right. Now they look the same.



 
A schematic, layout, and hi-rez pics are very useful for troubleshooting your amp. Don't wait to be asked. JUST DO IT!

Offline Apexelectric

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Re: Speaker baffle attachment methods
« Reply #59 on: January 28, 2018, 10:27:51 am »
Sounds easy enough. I think I'll give it a shot. I don't imagine its a low odor product? If not, it might have to wait till the weather warms up so I can do it outside.

Quick story:

I rented this rig to a friend of mine who runs the concert hall at our local college for a Los Lobos show. They requested a Bassman be available for their rhythm player, which was one of the main reasons I built this thing in the first place. They ran it through sound check and had it ready to go. Right after the opening act, the did another quick sound check and decided right before the show started to sub it for a Hot Rod DeVille. :w2:

The bight side is that their stage engineer left his card on my amp so maybe there's a silver lining.

Oh well, better luck next time.

Thanks guys!

It's never a dumb question if it prevents a dumb mistake.

Offline bnwitt

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Re: Speaker baffle attachment methods
« Reply #60 on: January 28, 2018, 02:14:23 pm »
Well Sluckey answered all of your questions regarding the shellac application.  The only thing I do differently is after I get the tone just right with the amber shellac I then finish the cabinet with satin Lacquer rather than clear shellac.  Shellac is not very water resistant and I want a final finish that can take a bit of moisture since some people like to set drinks and other wet thangs on the amps I build for them. :cussing:

Steve, that DR on the left looks sweet! :worthy1:
Guides on your quest for tone.
 Oh yeah, and I'm usually just kidding so don't take me too seriously.

Offline bnwitt

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Re: Speaker baffle attachment methods
« Reply #61 on: January 28, 2018, 02:23:44 pm »
...they did another quick sound check and decided right before the show started to sub it for a Hot Rod DeVille. :w2:

Probably just because the player is used to a particular dialed in amp setting and didn't want to tweak a new one. 

Here's my short story, I displayed a Hoffman 5E3 and a 1X15 Hoffman AB763 (Vibroverb) at the 2008 Winter NAMM years ago in the CE Distribution Jensen speaker booth as they sent an all call out to their known amp building customers for amps using the new Jensen speakers.  During the show I got a call from John Fogerty's equipment manager asking me if I could supply two of them for his upcoming tour which was starting in a few weeks.  I told him I couldn't build two that fast and I missed out on that deal. :sad2:  In the photo below that's my Duke 55 (5E3) front and center.
Guides on your quest for tone.
 Oh yeah, and I'm usually just kidding so don't take me too seriously.

Offline Apexelectric

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Re: Speaker baffle attachment methods
« Reply #62 on: January 28, 2018, 02:29:51 pm »
That’s a bummer. 
It's never a dumb question if it prevents a dumb mistake.

Offline bnwitt

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Re: Speaker baffle attachment methods
« Reply #63 on: January 28, 2018, 02:34:09 pm »
That’s a bummer.

Nah.  Probably saved me thousands of dollars going further down the amp building business rabbit hole. :laugh:
Guides on your quest for tone.
 Oh yeah, and I'm usually just kidding so don't take me too seriously.

Offline jjasilli

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Re: Speaker baffle attachment methods
« Reply #64 on: January 28, 2018, 05:50:56 pm »
sub it for a Hot Rod DeVille.
My experience is that the typical guitarist will very likely choose a current production, "modern" amp.  Realistically, I suspect many guitarists know hardly anything about amps.

Offline bnwitt

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Re: Speaker baffle attachment methods
« Reply #65 on: January 29, 2018, 07:38:28 am »
sub it for a Hot Rod DeVille.
My experience is that the typical guitarist will very likely choose a current production, "modern" amp.  Realistically, I suspect many guitarists know hardly anything about amps.

The one thing most seem to know is that cheaper PCB based Chinese built amps are a much better value than a hand wired boutique amp. :l2:
Guides on your quest for tone.
 Oh yeah, and I'm usually just kidding so don't take me too seriously.

Offline Ed_Chambley

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Re: Speaker baffle attachment methods
« Reply #66 on: February 14, 2018, 06:04:30 am »
I like pumpkin tweed. If you don't do not use amber. Clear brush on lacquer works well too. Still reduce or thin with  thinner.

 


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