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This is a Rectify Series drop-in speaker system for pre-sound era Stewart F-Unit locomotives. More than just a box, the enclosure features Diapasonic Tuning™, which allows the lower frequencies to accurately develop and resonate, clears the midrange of excess resonance and tunes the upper-mid/high response. The speaker uses double-sided mounting tape or a touch of adhesive to mount and no modifications are needed to install the speaker.


The speaker comes fully assembled and tested.


Dimensions are: 10mmH x 27mmW x 39mmL

Stewart F-Units

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