Upgrade the speaker to offer deeper Bass & Tones for your Bachmann Class 117/121
These simply screw into the previous slot of the included speaker NO SOLDERING REQUIRED
****PLEASE NOTE BACHMANN CLASS 117 REQUIRES 2 Speakers****
These simply screw into the previous slot of the included speaker NO SOLDERING REQUIRED
****PLEASE NOTE BACHMANN CLASS 117 REQUIRES 2 Speakers****