Speaker repair - replacing the foam surround

In this video, I am repairing a Genesis 12" subwoofer driver. I bought a foam replacement kit from speakerworks.com, and the process of installing it went very smoothly.

The song is One Less Worry by Dennis Chambers and Niacin. It's off the Drum Nation Volume Two album.

Category:

Science & Technology

Tags:

• speaker
• surround
• repair
• replacement

[abekim7]

Ok stupid questions. Does the surrounds on the speaker have any effect on the sound quality? I am trying to repair an old 1991 sony ss-tl1 speaker and the surround foams on the sub woofer are gone. The bass without the surround foam is very lacking. Will it change once I add the surrounds? Or did i ruin the sub woofer when I used it without the surrounds

[bkraz333]

@abekim7 The surround is especially important for bass response with sealed-box configurations. The reason is that the pressure wave from the back of the cone can leak around through the broken surround and cancel the wave coming off the front of the cone. The amount of bass degradation will depend on how the speaker cabinet was originally designed, but having a blown surround will usually hurt sound quality quite a lot -- especially bass notes. Good luck!

[Edward681]

Just did my first re-foam. Cerwin Vega D-3's. The trick is to TAKE YOU'RE TIME AND DON'T RUSH! Can you tell me who the background music is from?

[bkraz333]

@Edward681 The song is One Less Worry by Dennis Chambers and Niacin. It's off the Drum Nation Volume Two album.

[Mattystew17]

any tips for re-attaching a gasket? somehow the kid i bought my subs from blew them off, and he was underpowering the subs. they're alpine type e's, but i think they were just initially poorly adhesed, but i don't know

[bkraz333]

@Mattystew17 If the gasket is being used for that particular speaker mounting setup, it will be pinched between the metal speaker basket and the speaker box. This means that the adhesive will not be under much stress, and the type of glue will not matter much. I'd use surround glue, which is probably just Elmer's white glue.

[logos2600]

Great work. We want to hear that bass bump

[thedudeman9000]

a tip I'd wish to give to the viewers of this video:

Elmer's Rubber Cement is a great preventative buff to put over a weak cone/suspension.

If the hole is too big, I sometimes use paper towel dipped in rubber cement to patch it up.

Sure, it adds a little extra mechanical resistance to the speaker, but I can't hear a difference nor have I ever damaged a voice-coil by making it too restrictive.

And like always, thanks for the great videos

[abekim7]

@bkraz333 thx very helpful. Btw since its old should i even bother paying $20 to fix it? The tweeters seem to be working fine. Not sure about the bass though. I don't want to fix something that can't be fixed to begin with. Or it could be like you said the surrounds are having a huge affect on the bass since its not even on the driver

[TrueSnipinq2011]

Dont Sound To Excited.

[chinesemonk]

I need a large caliper in my garage :/

[foolishjerk]

Thanks for the video. Wondering who the back ground music is. Sounds cool!!