Location of phaser banks visible in an aerial view of Voyager.
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Location of ventral and lower phaser banks.
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Voyager's phasers, which are direct descendants of the Type X phasers on the USS Enterprise NCC-1701-D, form large multi-emitter strips strategically placed on the hull for maximum weapons coverage.
There are phaser banks on the primary hull, mid-hull, a lower phaser strip on the underside of the saucer towards the front, and ventral phaser banks.
Voyager fires phasers using the lower phaser strip [#24 Persistence of Vision]
Starboard phaser bank firing with a salvo starting up from the port phaser bank. [#79 Concerning Flight]