After reading everything you have posted here and looking at your existing website, I am left with the feeling that you and your partners may have a lot of internal work to do on the business before considering a launch. Maybe I have the wrong impression but in any event I will share my thoughts.
It seems you have an existing company that focuses on upgrading and repairing audio equipment that has been designed and manufactured by others, your business model promotes sales primarily by word-of-mouth, and you now want to expand by designing and manufacturing a new line of audio equipment in-house, which you will bring to market.
@thecarpathian asked, “What will you be specializing in?”, to which you basically replied, amplifiers, preamps, and phono stages. If I were a potential customer, I would be curious about which of those products you initially plan to focus on, what is interesting about your new products, and specifically what design choices and/or sonic characteristics set them apart from the competition within the intended price range. I would want to see high-resolution images of the equipment, preferably inside and out, and I would expect the appearance to be attractive, well-built, and consistent across the product line. Clarity and consistency related to your products is about building and defining your brand, which will help define the sandbox you are playing in and will help potential customers decide whether to spend their money. Your brand promise, and the appearance of your equipment, should be thoughtfully presented and attractively displayed on your website.
When you launch your first product, it should be as fully developed as possible. In the audio world, having a “win” with one of your first products out of the gate can validate your brand – think Aerial Acoustics with their Model 10T, which was named Speaker of the Year by Stereophile magazine in 1996. You only get one opportunity to make a first impression, so make sure you achieve what you intend, both sonically and aesthetically, before releasing your initial offering to reviewers for public comment. Maybe consider a beta group of experienced audiophiles to provide feedback directly to your team pre-launch, if you haven’t already done that.
Kudos on the company name, Vu Jade, which I assume may be a take on George Carlin’s Vuja De - “the sensation of experiencing something familiar as if it were entirely new or unexpected”. IMO, that is a cool concept as related to marketing audio equipment, so consider using it to come up with an engaging company tagline which, along with the company name and an attractive logo, will enhance your brand recognition. Another suggestion is to take a look at successful companies that have had a similar start to yours. Dan Wright’s ModWright Instruments comes to mind, since he was able to grow a successful company from an equipment upgrading operation that seems to have been similar to your current situation.
Finally, don’t underestimate the importance of effective business practices as many designers with passion and expertise ultimately fail at the business because of issues such as underpricing their offerings, supply/demand/capacity considerations, vendor issues, manufacturing quality and consistency, responsive customer communications, after-sales servicing, and more. Think it through and good luck.

