Thank you very much @LongBigBronzeElephantFish. I'll take your advice as well to save up more for CKR10 just in case I like it better than CKR9. Two weeks skipping lunch should do just fine LOL.
Actually I think this IM70 sounds very good already to my ears. Not only it is good for vocals, but the sound of snare drums are so good. The bass is very tight and neat making it so ideal for the type of rock jazz bands I like as well such as Spyro Gyra, Fourplay, Cassiopea, Jeff Lorber, etc. So that's why I am very curious and eager to try other AT bigger brothers like CRK9/10 and IM02/03.
I agree with you that best is to ask for CKR9,CKR10, IM02 and IM03 audition but honestly, me paiseh ler because I am just a nobody, not a big regular customer, so I probably will just ask for CKR9, CKR10 and IM2 audition but I'll see first how friendly the shop is and I'll only go during non-peak hours. By the way, where do you guys usually go for AT audition, Treeo, Stereo, or any other better shop?