Cheap electronics are readily available in the market and apparently they resemble a lot to the original versions. Though manufacturers of cheap electronic goods have made it sure that you will never feel the difference in the appearance and looks of the original piece as well as the fake one, but the difference will be apparent when you try to use it or attach it to your whole system. You can find cheap home theatre projectors, motorised projector screen, Acoustic panels and data projectors on a very low price and you may not be able to feel why they are so cheap, until and unless you start using it.
Though, you may find low cost solutions for your home projectors and home theaters if you are looking for a second hand product or products through a wholesale dealer as you will have a guarantee of buying a genuine item, still you will need to check it first.
You cannot compare the performance any low cost or unknown brand with that of Integra, pro audio, Dynaudio or tc electronics in Australia, as they have a standard of providing high quality, original products.
In case you opt to buy a cheap accessory you will have to put some efforts in finding an original product. Either you can contact a wholesale dealer that sells company goods on manufacturers rates or can also look for second hand or refurbished options. But in such a case, you should make sure that there are no serious issues or faults that may cause problems later on.
There is another issue in buying such products as if you buy a second hand or unknown brand you may not find the latest version if you have got a newer system installed. So, you will have to check for its compatibility first. Like if you buy tc helicon voicelive, you can use it in the latest version and with the advanced accessories and not the older ones.