I've found one set of unenchanted Dark Brotherhood armor. I found it in the quest where one has to go kill another member of the Brotherhood after he attacks the family.

It's actually called "Worn Shrouded Armor."

Are there any other sets of unenchanted DB armor out there, or do I only have the ability to get the one set? I'd really like to make this my permanent armor, but I'd like to have a second set of it in case I change my mind on what the enchantments ought to be down the road.

Nope as far as i know there is only one set to be had.

I guess if youre on PC, you can add another via console?

I'm on a PS3.

Pity. I really liked that armor. My friend and I play one character together and I'm certain she'll want a different set of armor to use than I will, so I was hoping to get a different set.

Oh well. Thank you.

Is there a way to get this unenchanted dark brotherhood armor if someone does the quest "destroy the dark bortherhood".

I didn't want to kill the people in the shack, so I went with killing the dark brotherhood. If I have to reload and join them just to get the unenchanted armor it's cool. Don't really mind, but if there is a way to get it without having to do that it would be easier.

edit: It's too bad the game doesn't let the player unenchant items. I really like the Dark Brotherhood robes and hood, and also Nightingale armor, but I don't like their enchantments.

Use the mannequin exploit to duplicate it. I've done that with a couple unique armor pieces so I can give them to followers and not have to worry about accidentally losing them.

I didn't know there was such an exploit until just now. I might try it out. Thank you.