Portable Power Stations for L1 Systems

L1 Model II

T8S

T4S

T1 

Overview

These are the results of using a Jackery Explorer Power Station 500 to run an L1 Model II with ToneMatch Mixer, two B1 bass modules, and Kemper Stage electric guitar processor.

Conclusion - Jackery Explorer Power Station 500 should provide power for moderate-to-high volume for at least five hours for a L1 Model II with a ToneMatch Mixer.

• You should get similar results with an L1 Compact. Note: The L1 Model II can cover at least four times the area of an L1 Compact.
• The power consumption is similar for all models. The volume (Sound Pressure Level SPL) determines how much power you consume. The louder you run the system, the faster you deplete the power. For example, you might get 7 hours of music at 80 dbC SPL and only 2 hours at 110 dbC SPL.

Update - L1 Pro Systems (Pro8, Pro16, Pro32 with Sub 1)

I have repeated the same tests using the L1 Pro systems. The power consumption is comparable to that shown for the L1 Model II with two B1s shown in the tables below.

The power consumption is similar for all models. The volume determines how much power you consume. The louder you run the system, the faster you deplete the power. For example, you might get 7 hours of music at 80 dBC SPL and only 2 hours at 110 dBC SPL.

28 February 2021

Jackery Explorer Power Station 500 Specifications

• Lithium battery power: 518Wh/144,400mAh battery capacity,
• 500W Rated Power and 1000W Surge Power
• Pure Sine Wave AC
• 13 pounds
• Time to recharge using AC adapter - 8 hours
• Warning - the smaller Jackery Explorer Power Stations do not provide Pure Sine Wave AC power and are not recommended.

System as Tested

• Model II with two B1 bass modules
• T8S ToneMatch Mixer
  • ToneMatch Power Supply
• Kemper Profiler Stage
  • Approximate draw 12 watts)
  • The Kemper Profiler with Remote draws approximately 17 watts was not used for this discussion
• Program material: Rock music with ToneMatch Preset set to DJ/Playback High Volume

• SPL measured at one meter, C-weighted

• I have repeated the same tests using the L1 Pro systems. The power consumption is comparable to that shown for the L1 Model II with two B1s shown in the tables below.

Results

Equipment	SPL  dBC	Draw  on display	Net  Watts	Estimated  Run Time  Hours
Calculation  518 Watt-Hours x 85% / Draw in Watts = Run Time Hours
Jackery 500		0	0
AC Inverter engaged		5		88.1
Power Bar with Surge Arrest		7	2	62.9
T1 with ToneMatch Power Supply		17	10	25.9
T4S with ToneMatch Power Supply		20	13	22.0
T8S with ToneMatch Power Supply		25	18	17.6
L1 Model II with 2 x B1 idle		40	33	11.0
L1 Model II with 2 x B1 + T1 idle		49	42	9.0
L1 Model II with 2 x B1 + T1	80	52	45	8.5
L1 Model II with 2 x B1 + T1	90	57	50	7.7
L1 Model II with 2 x B1 + T1	100	72	65	6.1
L1 Model II with 2 x B1 + T1	110	193	186	2.3
L1 Model II with 2 x B1 + T4S idle		51	44	8.6
L1 Model II with 2 x B1 + T4S	80	54	47	8.2
L1 Model II with 2 x B1 + T4S	90	61	54	7.2
L1 Model II with 2 x B1 + T4S	100	75	68	5.9
L1 Model II with 2 x B1 + T4S	110	200	193	2.2
L1 Model II with 2 x B1 + T8S idle		56	49	7.9
L1 Model II with 2 x B1 + T8S	80	59	52	7.5
L1 Model II with 2 x B1 + T8S	90	66	59	6.7
L1 Model II with 2 x B1 + T8S	100	80	73	5.5
L1 Model II with 2 x B1 + T8S	110	205	198	2.1

Run Time Calculation Examples

518 watt hours x 85% (for inverter efficiency) = 440 watt hours.

Example: L1 Model II + 2 B1 + T4S at 100 dB

440 watt hours / 75 watts = 5.9 hours

Add draw from Kemper Profiler Stage at 12 watts

440 watt hours / (75 + 12) watts = 5.0 hours

If using a T8S instead of T4S add 5 watts to draw

440 watt hours / (75 + 12 + 5) watts = 4.8 hours

L1 Compact (60 watts at 100 dB) + T4S

440 watt hours / (60 + 20) watts = 5.5 hours

Remarks

Occasionally I perform outdoors in settings where an S1 Pro system doesn't provide adequate coverage. I wanted a solution to power an L1 Compact and a ToneMatch Mixer.

Minimum Requirements

• Pure Sine Wave inverter
• Minimum run time at moderate volume (85 dBC SPL) 5 hours

The smallest capacity unit I could find was the Jackery Explorer Power Station 500.

Here's my rationale that led me to test using the L1 Model II.

For most outdoor gigs:

• If one S1 Pro system will do the job - use one S1 Pro system
• If two S1 Pro systems are required to do the job, use an L1 Compact
  Note: The L1 Compact power draw is similar to the L1 Model II for a given SPL
  • L1 Compact (60 watts at 100 dB) + T4S
  • 440 watt hours / (60 + 20) watts = 5.5 hours
• If two L1 Compacts are required to do the job, use an L1 Model II (or L1 Model 1S)

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