Sonos Inc. will bring in less money than it hoped in an initial public offering, announcing a price of $15 a share Wednesday evening. The maker of high-end speakers had hoped to price shares at $17 to $19 apiece, according to previous filings, but said Wednesday evening that it would instead sell 13.89 million shares at a lower price. At that price, Sonos will bring in at least $208 million at a valuation of nearly $1.5 billion. Underwriters, led by Morgan Stanley and Goldman Sachs, have access to another 2 million shares, split between Sonos and selling shareholders.