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About the BP-Jr. II
The BP-Jr. II from Balanced Power Technologies is a small, entry-level balanced power isolator designed to supply up to 300VA (about 2.5A) of balanced 120VAC for low-to-moderate-draw audio electronics. It is intended for powering source components, preamplifiers, and most dedicated headphone hi-fi rigs, providing common-mode noise rejection and cleaner AC compared to standard wall power. The unit uses a toroidal isolation transformer with a center-tapped secondary to deliver approximately 60V hot-to-ground and 60V neutral-to-ground, maintaining 120V operation for connected gear while reducing hum and interference. In BPT's lineup, the BP-Jr. II is positioned as the compact, cost-effective model below larger units like the BP-2.