Hertz System for 2014-2024 Tri Glide Upgrade the Amplifier for more Power?:Yes - I want to upgrade to the SP 4.900 Used to connect upper fairing

Used to connect upper fairing speakers to lower fairing speakers in parallel on two amplifier channels

All-new pro-level compression horn tweeters replace the legendary ST25 horns that revolutionized Harley audio

multi-amplifier connections are much more manageable

cranking high-performance lighting

Hertz System for 2014-2024 Tri Glide Upgrade the Amplifier for more Power?:Yes - I want to upgrade to the SP 4.900 Used to connect upper fairingTHE HERTZ 4 SPEAKER Package with Amp Upgrade Specifically for Ultra and Tri Glide Models This Kit Includes: Hertz SX 165 Neo speakers, 2 sets (**Or, optionally, 1 set of SV 165 Neo for the tourpak instead of SX 165 Neo**) Hertz SP 4. 500 600 Watt, 4 channel amplifier (**Or, optionally, the SP 900. 4 1,000 Watt amplifier**) Optional Hertz S8 DSP Wire Harnesses to complete installation A mid to high power audio system (depending on the amplifier