L1® System Holistic View

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A Holistic View of the L1&trade [1]

The L1 System (Physical)

Here is one way you can think about the L1 System.

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L1 Cylindrical Radiator® loudspeaker as one loudspeaker

Think of the L1 Cylindrical Radiator® loudspeaker (Yellow highlight) is a single loudspeaker with 24 drivers (2.5 inch)[2] supplied by 500 watts.

Two B1 Bass Modules as a one bass loudspeaker

Think of the pair of B1 Bass Modules (Purple highlight) is a single bass loudspeaker with 4 (6.5 inch)[2] drivers supplied by 250 watts. [3]

That's 750 watts in total.

The L1 System (Amplifiers & Power)

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L1 Cylindrical Radiator® loudspeaker

The L1 Cylindrical Radiator® loudspeaker This is one loudspeaker that happens to break down into two pieces for travel. This is driven by two separate amps, but this is not important because under normal circumstances both amps are driven identically. One drives the top half of the L1 Cylindrical Radiator® loudspeaker and the other drives the bottom half. Because the L1 Cylindrical Radiator® loudspeaker should always be operated as a single unit, what happens when you break it down isn't relevant.

B1 Bass Modules

If you break the pair of B1 Bass Modules in half, and use just one of them, it draws 125 watts.[4]

If you don't use the B1 Bass Modules at all, the amp that is normally used to drive them is idle.



  1. Originally appeared in the Bose® Pro Portable PA Community
  2. 2.0 2.1 Quoting Hilmar-at-Bose
  3. two B1 Bass Module loudspeakers connected draws up to 250 watts at 4 ohms
  4. one B1 Bass Module loudspeaker connected draws up to 125 watts at 8 ohms