This is a speaker enclosure for 16x9x3mm speakers, custom designed to fit inside of an n-scale Kato ES44AC. The enclosure is designed to maximize volume within the shell of this particular locomotive in order to provide the best possible sound from these tiny speakers.
Length: 28 mm
Width: 10.4 mm
Height: 5.25 mm
Air Backing Volume; 540mm^3
This may fit within other similar locomotives as well. Customers have reported compatibility with the Fox Valley Models GEVOs.
Potential speakers to use:
-- Knowles Acoustics Wildcat S9, Part Number 2403 260 00165 (Obsolete)
-- CUI Inc, Part Number CMS-16093-078L100 (Digikey: 102-4623-ND), 100Hz to 20 kHz (Great low-end for such a small speaker)
(Note: These speakers are routinely updated with newer, better models -- I try to keep them up to date, but If they are showing obsolete on the provided Digikey link(s), please let me know and I can point you to the latest speakers)
The speaker box fits on the rear of the frame and allows for routing of wires for a LED rear light along the bottom of the box. There are two holes in the front of the box to allow the speaker wires to enter into the enclosure.
Speaker not included. This includes 1x piece for one locomotive. Other quantities: