These are Rectify Series drop-in speakers for pre-sound era Stewart C-628 locomotives. More than just a box, the enclosures feature 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.
 
Two versions available:
 
The STEW-C62E speakers are for early-run models that have a shorter, 8-pin board and simple stock lighting. The two plastic "stands" are unscrewed and removed from the chassis with the STEW-C62E speaker sticking to the chassis via two strips of double-sided mounting-tape. There are wire channels on both sides to pass the truck-wires through. See first set of photos.
 
The STEW-C62F front-mount and STEW-C62R rear-mount speakers use the stock motherboard screws to mount to the "stands" and other than removal of the stock PCB, no modifications are needed to install the speaker. These models have a very long PCB with additional lighting. See second set of photos.
 
Utilizing both the rear-mount and front-mount speakers, room is left for just about any decoder style, including both LokSound Direct boards, Soundtraxx PNP, 21-pin+motherboard or hardwired. Additionally, room is available for a stay-alive should one be desired.
 
The speakers come fully assembled and tested.
 
Dimensions are:
STEW-C62E-RC1 "early": 20mH x 18mmW x 28mmL
STEW-62R-RC1 "late" rear-mount: 19mmH x 17mmW x 40mmL
STEW-62F-RC1 "late" front-mount: 19mmH x 17mmW x 26mmL
 
VIDEO: https://youtu.be/0_bzDTs7pP4