Top personnel to be replaced.

Music monthly Spin is set to be acquired by publisher Tom Hartle on Tuesday (Feb. 28), according to sources familiar with the situation.

Once the deal closes, Hartle has plans to replace top personnel at the magazine with the launch team behind Dennis Publication's Blender. As first reported in WWD last week, Hartle tapped former Blender editor Andy Pemberton to replace current editor in chief Sia Michel, and former Blender publisher Malcolm Campbell to replace Spin publisher Jacob Hill. Campbell, most recently group publisher at Vice, served as publisher of Spin for 11 years before joining Blender.

Spin and sister publication Vibe have been on the block for several months, with Hartle emerging as the front-runner in the last month. Hartle's San Francisco-based publishing company Hartle Media is home to 7x7 magazine and California Home & Design. Hartle has also spearheaded ad sales in the northwest for Spin for years.

Hartle will take over Spin after years of declines in circulation and ad pages. For the second half of 2005, paid circulation fell 5.3 percent to 540,901 over the same period the year prior (and missed its 550,000 rate base), according to the Audit Bureau of Circulations. Ad pages fell 8.6 percent to 98 through March, reports the Mediaweek Monitor.