


It's funny how different our ears are...people in general I mean. While I liked the 225, I lOVED the 325 on demo day. Worth every cent over the cost of the SR225, to me.
I keep reading about these mods and I want to give some a try but at the same time I am very happy with the stock sound and I just don't think I trust myself to tear apart a $300 pair of headphones, especially when they are the only ones I have now that my 770's are sold off.
I don't blame you for hesitating but if and when you finally take the plunge, you'll wonder why you waited. Venting the drivers does not rob you of treble. It lets your drivers breathe and provides you with the bass you are missing. This, in turn, allows you to get that bass without overcranking the volume. The result is an improvement to both the bass and the treble. It's a better tonal balance that works. After trying it on a 325is, I was utterly thrilled with the result.
Any idea why Grado wouldn't design them this way in the first place?
To my knowledge, the PS1000 already has 3 holes punched in the back.











