ok guys here's what I've been toying with on my set up.
AKG K518 stock pads
The first problem with my AGK K518 pads was the diminished bass. The stock pads had ample bass but the AKGs seemed to or not. mostly not. But I wasn't ready to part with my newfound awesomeness afforded by unrestricted mids and highs the AKG pads revealed. I wanted my bass and after stuffing with paper towels it brought some back. Just still not as much as stock. but doable. After disassembly I noticed the three ports on the face of the drivers. ( Image: Lower L corner. only two visible now covered with scotch tape.) I thought I'd experiment and covered them with scotch tape. and voila! all the bass came back and now these totally remind me of the fx 40s bass and overall signature but now with more impact! . Nice strong low and fast. except now it's definitely stronger! but in my opinion more in balance the way I like it with a full bass sub bass section and those wonderful highs are all still there and more! You can do this to for under 25 cents! of course if you have the pads to do this
You will need:
1: 1" of scotch tape
2: scissors or knife (Exacto/ Razor for clean install)
3: 1 paper towel
4: Pads of choice. ATs and AKGs seem pop
Here are the steps
1: remove pads
2: locate three outer ports and cover with scotch tape (photo bottom left driver)
3: roll paper towel to fit inside the driver side facing pad (photo top pad) this item doubles to reinforce the scotch tape and to create a better seal as the stock pad is loose fitting
Note: I can't remember who I read this step from in one of the S400 or S500 threads but I felt as though that this made a difference so props to him fo sho!
4: Roll a couple of more paper of paper towels to fit the pad (photo right pad)
5: reassemble Note: when reattaching pad be careful to keep the paper towel on the facing side of the driver and not behind it. This will help reinforce the seal to the ports
This just in!!! use a bit more scotch tape as the little amount I used got the seal blown through. I thought the bass fell off.
I feel the stuffing is important for body of the bass. So don't skip this step
Edited by musubi1000 - 11/4/12 at 12:10am