tascam dr-40

Are you in the recording business? My friend is just starting his recording business. He certainly would appreciate any tips on equipment to invest on. He recently purchased an exceptional tascam dr-40. He still has a couple of other recording equipment that he needs to purchase that's why he has been doing his research over the internet so that he can make sure that each investment is worth it. He will be making use of hard earned money so he has to be wise with each purchase. I wish him the best that his new business will prosper.