Sorry, but I can't be in agreement here.
You use PQ Sound woofers @ R112.30 each and the tweeters @ R75.00 each.
That gives you a total of R374.60 for all the drivers.
Give or take R250.00 for the X-Overs and a few bucks for the port, terminal, stuffing, etc.
Your kit price is R2599.00 for a pair, making your profit margin more than 200%!!!
I have used these woofers, tweeters and X-Overs before in a venture that I started, and my price for something similar to the "CM651" was R1250.00 per pair. I battled to sell them as you can buy, e.g. Wharfedales at HiFi Corp for cheaper than this and they have a brand name attached.
These "Kevlar" woofers are also not that great, as their TSP's are never the same; not even in the same batch.
My adivce: Drop your pricing as anybody with a Router, Table saw and the Internet can build these for under R800.00
I have tested numerous of these drivers. After burn in time, they settle, and the differences in TS specs is more than acceptable IMO.
You must remember to add costs for the flatpack CNC cut enclosure panels. With this included, my markup is not even close to what you suggest. (the enclosures are really very easy to assemble and comes with good instructions, which is time spent and all adds to the package)
I'm not a fan of Wharfedale (and have bought some grey products form Hifi Corp before, unknowingly so), but despite that, the kits I supply is not for the guy who wants to buy off the shelf. It's for the DIYer who would like a good speaker set and have the time and ability to apply a custom finish etc.
What I have seen some people do with a router and table saw is scary
, but seriously, for R800 you pushing it a bit, and not taking all factors (design, time, parts, materials etc.) into consideration.
Some of the CPT forum members are coming around on Saturday. I'm eager to get their opinions, and will post feedback after.
This venture is still very new, and only time will tell if it can work.
Tx for your input