Comparing L1 Pro Power Stands to Subs

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Comparing L1 Pro Power Stands to Subs

The L1 Pro8 and Sub1 use the 7" x 13" Racetrack transducer. The L1 Pro16 and Sub2 use the 10" x 18" Racetrack transducer. The following is a comparison of the performance of the L1 Pro power stands and the Sub1 and Sub2


L1 Pro8 Power Stand compared to Sub1

Both use the 7" x 13" Racetrack transducer

The L1 Pro8 power stand is 31 pounds. The Sub1 is 35.5.

The L1 Pro8 power stand is slightly smaller than the Sub1.

The L1 Pro8 power stand bass amp is 240 watts RMS. The Sub1 is 480 watts RMS.

The L1 Pro8 is 112 dB SPL continuous. The Sub1 is 118 dB SPL continuous.

The L1 Pro8 goes down to 45 Hz (-3 dB). The Sub1 goes down to 40 Hz (-3 dB).

L1 Pro16 Power Stand compared to Sub2

Both use the 10" x 18" Racetrack transducer

The L1 Pro16 power stand is 41.4 pounds. The Sub2 is 52.

The L1 Pro16 power stand is slightly smaller than the Sub2.

The L1 Pro16 bass amp is 1000 watts RMS. The Sub2 is 1000 watts RMS.

The L1 Pro16 is 118 dB SPL continuous. The Sub2 is 123 dB SPL continuous.

The L1 Pro16 goes down to 42 Hz (-3 dB). The Sub2 goes down to 37 Hz (-3 dB). The difference is due to the larger physical volume of the Sub2 enclosure.


SpecificationB1B2Sub1Sub2F1 Subwoofer
dB SPL at 1 meter
Continous/Peak
n/a 115 dB (continuous)
121 dB (peak)
118 dB (continuous)
124 dB (peak)
123 dB (continuous)
129 dB (peak)
124 dB (continuous)
130 dB (peak)
Watts RMS
Active/Passive
125
Passive
250
Passive
480
Active
1000
Active
1000
Active
Weight pounds 28 45 35.5 51.7 55
Drivers Two 5.25" Two 10" One 7"x13" RaceTrack One 10"x18" RaceTrack Two 10"
Cardioid Mode n/a n/a Yes Yes n/a
Compatibility with Bose Products L1 Legacy L1 Legacy L1 Pro, L1 Legacy, S1 Pro, L1 Compact L1 Pro, L1 Legacy, S1 Pro, L1 Compact L1 Pro, L1 Legacy, S1 Pro, L1 Compact
Compatibility with non-Bose products No
passive, no low-pass filter
No
passive, no low-pass filter
Yes
active, switchable low-pass filter
Yes
active, switchable low-pass filter
Yes
active, switchable high-pass filter
Two Sub1s or Sub2

Two Sub1s have approximately the same membrane surface area (180 square inches).

The power difference is negligible (960 watts RMS compared to 1000 watts RMS).

Two Sub1s tightly coupled (stacked or side-by-side) should provide up to +6 dB[1] over a single Sub1 (118 + 6 = 124). The Sub 2 is 123 dB SPL. The difference is negligible.


The Sub1 goes down to 40 Hz. The Sub2 goes down to 37 Hz (-3 dB). The difference is due to the larger physical volume of the Sub2 enclosure. Running two Sub1s does not change the frequency response.


  1. +3 dB from doubling the power and +3 dB from mutual coupling.