Motorola X-300

[Hi-Fi-Mogul]

1. The SHF-4 is a 6V6 PP mono amplifier.

Ask the seller for the model number of the
extension speaker.

The un-amplified speaker option was the
RCA SHS-4.

See below:

https://audiokarma.org/forums/index.php ... er.238721/

2. If the extension is an amplified speaker, then
that would make the unit an option for possible
stereo configuration with the SHF-4.

3. For only $100, the set is a steal, anyway.