Jazzy is a bass head. Even with 668B's lesser bass, I still mod it to reduce the bass. Hah hah!
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Now that I have the 660, I find it just a wee bit smoother (and obviously more bass) than 668B. Did you come to the same conclusion, Trio?

I have extra 2 CMoyBB boards. Components tak beli lagi.
if wanna bulk the components, entah bila akan sampai..
. =p

You want one?

Shipping cost from Taiwan to US is not cheap mah.

@Trio,
CMoyBB board cost me RM24 each. I can send one to you by Pos Express. Should be around RM27 total.
Unless you want to wait until I manage to get hold of all the components from Mouser.

660 sounds like in a small concert hall/recording studio (it's a closed HP); 668B sounds more like in open space, like the singer is singing with me.

660 sounds deeper and wider, more distanced from me; 668B is a bit more intimate, I love it when listening to female vocals.

660 has a more energetic bass, more visceral.

660 is a bit smoother; 668B is more raw.

660 is slightly more interesting & fun to listen to; 668B is just plain raw.
It's like eating the same steak: one is closer to medium-well done with mashed potato; the other more like medium-raw with fresh vege.
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Oh, my 668B is not stock, so my impression could be a bit off.
And in reality, the difference is not that big for me. It's just a matter of wanting a closed or semi-open HP. Sometimes, when I'm not paying attention, I forget which one I'm listening to until I look (especially on acoustic music with very little bass).

This post has been edited by iamyuanwu: Jan 25 2011, 04:49 PM