Not so sure but I know there is one music and accessories shop in Shah Alam called Tone Masters. They are selling loads of effects including boutique effects. Some ofthe effects are only carrying by them in Malaysia. You might want to go and see first..The landmark is near MSU, Tesco and Upin Ipin in Section 13 Shah Alam.
You can just use waze to find the shop.

Here is the music shop address btw:

Tone Masters
No.10-1F, Jalan Boling Padang E13/E,
Seksyen 13, 4010,0 Shah Alam, Selangor.
Tel: 03-58853775
H/p: 012-2438663
012-2448663
012-2468663
Open everyday 10am-10pm.