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For those interested in adding a four channel amplifier to their Road Glide, installing the Arc 125.4 four channel amplifier inside the fairing is a great solution for those wanting to power four speakers without mounting an amp in the saddlebag or tour pak. This thread from another forum shows the installation in an '09 SE Road Glide:
Lots of choices available for audio upgrades and the 125.4 inside the fairing of the Road Glide is a good one IMO.
I have the Arc 125.2 (two-channel, 250W) on the radio in my EG and it provides power to the speakers in the fairing lowers and works great. If the 125.4 would fit on top of the radio inside the EG fairing (I was told by a tech at Arc that it won't; too tall/deep) I'd be tempted to have the 125.4 instead of the 125.2, though the current set-up I have works great providing a virtual wall of sound going down the road.
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