Amplifier Comparison

 Technical Comparison

  BT454 Picture BT480 Picture BT2180 Picture 4180 Picture
Product BT454 BT480 BT2180 BT4180
Channels Two-Channel Two-Channel Two-Channel Four-Channel
Impedance Rating 4-ohm stable 2-ohm stable 2-ohm stable 2-ohm stable
RMS per Channel
(at 4 ohm)		 75 Watts x 2 180 Watts x 2 180 Watts x 2 180 Watts x 4
Total RMS
(at 4 ohm)		 150 Watts 360 Watts 360 Watts 720 Watts
Peak Output per Channel
(at 4 ohm) 		 150 Watts 360 Watts 360 Watts 360 Watts
Peak Total Output
(at 4 ohm) 		 300 Watts 720 Watts 720 Watts 1,440 Watts
Total Harmonic Distortion 0.05% THD 0.05% THD 0.05% THD 0.05% THD
Speaker Setup
  • Two Speakers:
    Speakers must be
    4-ohm rated
  • Four Speakers:
    Speakers must be
    4-ohm rated and wired in series
  • 2 ohm:
    2 speakers
  • 4 ohm:
    4 speakers in parallel
  • 2 ohm:
    2 speakers
  • 4 ohm:
    4 speakers in parallel
  • 2 ohm:
    4 speakers
  • 4 ohm:
    up to 8 speakers in parallel
Bike Fitment Will work with stock or aftermarket radio
  • Stock Radio: 2006 to present. May have to relocate any add-on HD modules.
  • Aftermarket Radio: 1996 to present
  • RoadGlide: With stock or aftermarket radio
Price $399.95 $499.95 $449.95 $649.95
Notes     Uses a smart DSP (digital) controlled power supply.