Help in installing damping in Orange OBC115?

steamthief · #1 02-23-2011, 03:38 PM

After reading up on the benefits of damping a cabinet, I want to give it a go with mine. As my OBC115 is the cab I use most, I want to do this one first, but I want to make sure I do it right the first time.

Where I'm a little confused is in applying the damping without blocking the port. Like a TL-606, this cab has a shelf that goes about 3 3/4" into the interior. Will applying damping on the entire back wall of the cab mess with the porting? Should any damping be applied to the left side of the cab behind the shelf? For the top and bottom, just install the damping up to the shelf?

Thanks to all who can shed some light. Also, thanks to hdracer for getting me this far, I didn't want to keep bugging you via PM.

JimmyM · #2 02-23-2011, 05:01 PM

it should be attached to any surface that's bare except the baffle.

Musicman20 · #3 02-23-2011, 05:07 PM

That's a great cab as it is. Leave it be

JimmyM · #4 02-23-2011, 05:08 PM

Quote:

Originally Posted by Musicman20

That's a great cab as it is. Leave it be

all cabs should be dampened in order to get rid of standing waves. if orange didn't do that, it's a huge mistake imho.

steamthief · #5 02-23-2011, 07:37 PM

Quote:

Originally Posted by JimmyM

it should be attached to any surface that's bare except the baffle.

Even the left (port) wall? Wouldn't narrowing the port spacing with damping mess with the cab's tuning?

Quote:

Originally Posted by Musicman20

That's a great cab as it is. Leave it be

I agree it is a great cab - the damping, per hdracer's endorsement, makes it even greater.

JimmyM · #6 02-23-2011, 08:24 PM

Quote:

Originally Posted by steamthief

Even the left (port) wall? Wouldn't narrowing the port spacing with damping mess with the cab's tuning?

I agree it is a great cab - the damping, per hdracer's endorsement, makes it even greater.

you don't put the damping material in the port

billfitzmaurice · #7 02-23-2011, 08:24 PM

Quote:

Originally Posted by steamthief

Wouldn't narrowing the port spacing with damping mess with the cab's tuning?

Don't put any damping in the duct or in close proximity to the entrance to it. But damping that's a couple of inches away from the duct entrance won't bother anything.

steamthief · #8 02-23-2011, 09:02 PM

So if the port shelf goes 3 3/4" deep into the interior of the cab, should I start the damping on the left outer wall about six inches in?

AwkwardLoudness · #9 02-25-2011, 01:20 PM

I have a couple OBC115 cabs. Damping is a good idea in any cab, but I'm not sure how one would access the interior without ripping the grill cloth and removing the speaker.

hdracer · #10 02-25-2011, 01:34 PM

Quote:

Originally Posted by Musicman20

That's a great cab as it is. Leave it be

If you like it now, you will LOVE it after proper damping. You will like it even more if you pull out the Kappa 15A and put a Kappalite 3015 in it. Besides dropping 9 pounds it does EVERYTHING better.

Quote:

Originally Posted by AwkwardLoudness

I have a couple OBC115 cabs. Damping is a good idea in any cab, but I'm not sure how one would access the interior without ripping the grill cloth and removing the speaker.

The grill cover is held on with velcro strips in the corners. I use a dentist pick to grab the corner and tug on it, it will pull off.

AwkwardLoudness · #11 02-25-2011, 01:46 PM

Quote:

Originally Posted by hdracer

...You will like it even more if you pull out the Kappa 15A and put a Kappalite 3015 in it. Besides dropping 9 pounds it does EVERYTHING better.

The grill cover is held on with velcro strips in the corners. I use a dentist pick to grab the corner and tug on it, it will pull off.

Good to know. Thank you.

hdracer · #12 02-25-2011, 01:49 PM

I just took this photo of mine. I went all the way across the back of the cab and stopped at the top of the port on the top & bottom (you can see the top where I stopped). I left the port side wall alone and fully covered the opposite wall.

[IMG]

[/IMG]

johnnybass01 · #13 02-25-2011, 01:56 PM

If Orange engineer's didn't see fit to add damping material , I would leave it be , considering the price of their cab's if they didn't feel the need there is none. don't be fooled by a few bozo's on this site who think they know it all , but they don't . there is one guy on here that is actually telling Bob Gallien that he does not know what he is doing.so don't take everything to heart.

KramerBassFan · #14 02-25-2011, 02:04 PM

Quote:

Originally Posted by johnnybass01

If Orange engineer's didn't see fit to add damping material , I would leave it be , considering the price of their cab's if they didn't feel the need there is none. don't be fooled by a few bozo's on this site who think they know it all , but they don't . there is one guy on here that is actually telling Bob Gallien that he does not know what he is doing.so don't take everything to heart.

So just cause its expensive, its automatically nice and properly engineer?

BFM knows what he is talking about here. He's only been doing this for awhile now.

MuzikMan · #15 02-25-2011, 02:06 PM

Quote:

Originally Posted by johnnybass01

If Orange engineer's didn't see fit to add damping material , I would leave it be , considering the price of their cab's if they didn't feel the need there is none. don't be fooled by a few bozo's on this site who think they know it all , but they don't . there is one guy on here that is actually telling Bob Gallien that he does not know what he is doing.so don't take everything to heart.

Your input is very much appreciated. It is always good to explore all possibilities. Just keep in mind that there are Laws of Physics that cannot be broken.

MuzikMan · #16 02-25-2011, 02:07 PM

Quote:

Originally Posted by KramerBassFan

So just cause its expensive, its automatically nice and properly engineer?

BFM knows what he is talking about here. He's only been doing this for awhile now.

Wouldn't it be nice if the engineers set the price and not the bean counters?

JMac4strngr · #17 02-25-2011, 02:08 PM

Quote:

Originally Posted by johnnybass01

If Orange engineer's didn't see fit to add damping material , I would leave it be , considering the price of their cab's if they didn't feel the need there is none. don't be fooled by a few bozo's on this site who think they know it all , but they don't . there is one guy on here that is actually telling Bob Gallien that he does not know what he is doing.so don't take everything to heart.

Now why do You gotta go and be all hatefull?

There are some really smart guys on here that offer us free advice on how to improve our equipment, and You wanna start calling them bozo's? That is just plain mean.....

greenboy · #18 02-25-2011, 02:15 PM

Quote:

Originally Posted by johnnybass01

If Orange engineer's didn't see fit to add damping material , I would leave it be , considering the price of their cab's if they didn't feel the need there is none. don't be fooled by a few bozo's on this site who think they know it all , but they don't . there is one guy on here that is actually telling Bob Gallien that he does not know what he is doing.so don't take everything to heart.

Before you spout off about this yet again it'd be most wise to read a lot of speaker design sites. In every other tier of the audio market internal damping has been the rule for all serious products for many decades, whether from small designers or giants in the industry. Studies with measurements prove the benefits and all the serious players know that.

Even in the hinterland of bass cabs, many companies supply at least some internal damping. So at best, this is an "opinions differ" issue and Robert Gallien is no more knowledgeable than the typical newbie on a home audio site who's pulled a woofer on his first purchase.

KramerBassFan · #19 02-25-2011, 02:18 PM

Quote:

Originally Posted by MuzikMan

Wouldn't it be nice if the engineers set the price and not the bean counters?

Wouldn't it be nice if everybody made honest products that actually lived up to their hype?

Hah!

hdracer · #20 02-25-2011, 02:19 PM

Quote:

Originally Posted by johnnybass01

If Orange engineer's didn't see fit to add damping material , I would leave it be , considering the price of their cab's if they didn't feel the need there is none. don't be fooled by a few bozo's on this site who think they know it all , but they don't . there is one guy on here that is actually telling Bob Gallien that he does not know what he is doing.so don't take everything to heart.

I do not know much about speaker cabs, but there are a lot of people on here that do. I listen to them. I own one of these cabs and thought it was nice but the mids were not right and it would start breaking up way to soon, I did some research.
The people that have bought these have been ripped off. They charge WAY to much for them. A $75.00 speaker and no insulation? Nice plywood and cheap covering that tears easily.

I can not tell you any fancy specs but I know and my band knows what these changes have done to this cab. I spoke to Tech at Orange US and even he said "a 3015 would improve it, and a little damping would not hurt ether."

I am so glad I got mine used for $300.00