This is a Rectify Series drop-in speaker system for most current-run Atlas Master locomotives, such as the U23/30/33/36/B, B23/30-7 and others using the "standard" 16x35 Atlas enclosure. 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.
This speaker is available in two versions;
ALMA-UNI1-RC1 is "deck-mount" and should be used if your locomotive's speaker is mounted to a "shelf" on the frame, such as GE U-Boats. The speaker mounts with double-sided mounting tape or a touch of adhesive.
ALMA-UNI2-RC1 is "screw-mount" and should be used if your locomotive's speaker "floats" over a truck. The speaker mounts with factory screws. Do not use this version if your speaker is a "deck-mount". This speaker does not work in the RS-1, which requires notches for the number boards. Use ALMA-RS1L-RC1 for these.
While these speakers are based on the typical Atlas 16x35 factory speaker, smaller Atlas switchers utilize different speakers. I offer these as well, such as the S1-S4, HH600/660, MP15 and others, in addition to various early-run pre-sound and QSI-era Master locomotives.
The speaker comes fully assembled and tested.
Dimensions are: 11mmH x 17mmW x 40mmL