4pin rosster boster

[Goldrocs]

Looking for a four pin rosster booster for sd series 2100 for external speaker.....
Cheers GR....

 

[gcause]

Looking for a four pin rosster booster for sd series 2100 for external speaker.....
Cheers GR....

I have an Sd2200d with one of these fitted! works a treat.

www minersden com au/super-sound-signal-enhancer-sd-gp-4pin/

Sorry under the ten posts so can post proper URL.

For another $20 you can get it with an external speaker.