Back when surround sound meant Dolby Pro-Logic, most informed enthusiasts preferred dipole or bipole surround speakers. Since Pro-Logic was an analog matrix system that derived four channels from two, resulting in a monophonic surround channel, the...

Dolby specified surround speaker placement to the sides of the listening position, not behind it, which also made dipole/bipole surrounds attractive. Bipoles produce in-phase signals in two directions. Dipoles also radiate in two directions, but the...

Back when surround sound meant Dolby Pro-Logic, most informed enthusiasts preferred dipole or bipole surround speakers. Since Pro-Logic was an analog matrix system that derived four channels from two, resulting in a monophonic surround channel, the...