This is a Rectify Series drop-in speaker system for all Athearn RTR SD38/40/45 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 the factory mounting screws and no modifications are needed to replace the factory speaker.

 

The speaker comes fully assembled and tested.

 

Overall dimensions are 15.5mmH x 18mmW x 42mmL

 

VIDEO: https://youtu.be/45GzKmzPpMg

Athearn RTR SD38/40/45

SKU: AHRR-SD40-087
$17.00Price
     

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