The audio quality from your home studio setup is important but it's equally important not to overthink your sound. It's easy to get obsessed with your recording space but that isn't where you should be putting all your energy. If you want to obsess about something, obsess about your performance. Expensive microphones don't book you work. Your script reads do! This doesn't mean purchasing the cheapest USB mic, plugging it into your laptop and recording in your garage. You'll need some gear and a decent recording space, but this can be done inexpensively.
Research Rode microphones and Focusrite preamps. They're cost-efficient and as long as you have a well-treated space, you'll be in good shape! Unfortunately, the space often gets taken for granted in the voiceover business. I think Jan Anderson, who conducts our home studio setup sessions with our students, would agree with me! You can buy the most expensive gear on the planet and your audio will sound lousy if you're recording in a massive room with hardwood floors and high ceilings. Work with a coach like Jan, who can provide profession