Hoffman Amplifiers Tube Amplifier Forum

Other Stuff => Cabinets-Speakers => Topic started by: slavax on June 09, 2009, 11:14:33 pm

Title: Ampeg B15N
Post by: slavax on June 09, 2009, 11:14:33 pm

Does anybody out there know of any place to get the specs/plans for the Ampeg B15N double-baffle cabinet?  Thanks.

Title: Re: Ampeg B15N
Post by: mackie2 on June 09, 2009, 11:23:28 pm

Slavax-

Mackie2 here-

This was on a group:
Dimensions of B15N cabinet
OK...here is what my tape measure tells me regarding the Ampeg cabinet:

Height: 62 inches
Depth: 14 inches
Width: 21 1/16 inches

Gap where the amp top sits:

Depth: 11 3/4 inches
Width: 21 inches

In case you want to know, the measurement from the back of the amp cabinet to the gap is 3/4 inch.

The measurement from the front of the cabinet to the gap is 1 3/4 inch.

The inner lip of the gap is a 3/4 inch all around.

My cabinet is most definitely made of plywood.

The thickness of the front edge (measured from the grille cloth to the front edge of the cabinet): 3/8 inch

I hope that this will help you out. Now, I have to re-bury the Ampeg in my pile of "not being used anymore" equipment.

Mackie2

Title: Re: Ampeg B15N
Post by: slavax on June 10, 2009, 09:06:56 am

Thanks for the info.  What I'm most curious about is the double baffle design of some of the cabinets.  It seems to be a closely- guarded piece of info which is understandable since since Ampeg is reissueing them.  About the best things I've seen are pics on the Vintage Blue site.

Thanks

Title: Re: Ampeg B15N
Post by: Cork on July 05, 2009, 04:50:32 pm

Here is a photo of the inside of my B-15N cabinet.
Tried to post related photo's in the past but the camera that was given to me had too many pixells, this photo is resized.
Cork

Title: Re: Ampeg B15N
Post by: slavax on July 08, 2009, 10:47:38 am

     Thanks- I really appreciate the picture.  What's been intriguing  me lately is how much of a gap there is between the speaker baffle and the grille baffle and also how the grille baffle mounts to the cabinet (whether there is some kind of lip on the inside of the cabinet and any spacers that might go between the two baffles.)  If you could take some pics of the cabinet front w/o the grille baffle and maybe of the back- side of the grille baffle that would be great.
     Basically any dimensions you can give about the cabinet would be greatly appreciated.  Thanks

Title: Re: Ampeg B15N
Post by: slavax on July 08, 2009, 10:49:44 am

BTW- that's exactly the kind of speaker I want to put in my bass amp project; it's what got me started on the bass amp idea in the first place.