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Lightning Audio LA-4100MINI

4-channel car amplifier — 50 watts RMS x 4

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  • Lightning Audio LA-4100MINI

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  • Lightning Audio LA-4100MINI

  • Lightning Audio LA-4100MINI

  • Lightning Audio LA-4100MINI

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Our take on the Lightning Audio LA-4100MINI

by Buck Pomerantz
Lightning Audio

My system has plenty of power. Who needs an amp?

You might think you don't need an amp because you have a 400-watt system in your car, or because your new stereo puts out 50 watts a channel. But those are peak wattage ratings, which may boil down to 15 or 20 watts per channel, using the more realistic RMS rating. An amp sends your speakers the power they need to deliver your music with clarity and impact, whether you're using factory speakers or high-performance components. And low-frequency reproduction requires lots of power, so an amp is an absolute must if you're adding a sub to your system.

Lightning strikes again

Lightning Audio makes a great line of amplifiers that'll appeal to car audio fans everywhere. Their LA-4100MINI 4-channel amplifier will hit your speakers with 50 watts RMS each, giving your sound system much greater clarity and power. This handsome little amp packs its wallop using Class AB amp technology, for clean, distortion-free reproduction of your music. Want power for two speakers and a sub? You can switch the LA-4100MINI to 3-channel mode and blast a couple speakers with 50 watts each and your sub with 150 watts RMS.

Read more

Precise control

You can use the high-pass filters on the front and rear channels to keep low frequencies out of your speakers. If you've got a sub, this allows your speakers to play much louder and cleaner so they can compete with the bass. Lightning Audio includes a low-pass filter on the rear channels, so you can adjust the bass going to a sub or two when you're running the amp in 3-channel or 2-channel mode.

Lightning Audio LA-4100MINI control panel

                                               LA-4100MINI control panel

Highlights:

  • 4-channel car amplifier
  • 50 watts RMS x 4 at 4 ohms (75 watts RMS x 4 at 2 ohms)
  • 150 watts RMS x 2 bridged at 4 ohms (4-ohm stable in bridged mode)
  • frequency response: 20-20,000 Hz
  • Class AB amp technology
  • variable high-pass filter on front channels (20-250 Hz, 12 dB/octave)
  • variable high- and low-pass filters on rear channels (50-250 Hz, 12 dB/octave)
  • preamp inputs
  • 4-gauge power and ground leads and a 60-amp fuse recommended — wiring and hardware not included with amplifier
  • no onboard fuses — when installing multiple amps in a system, an additional 60-amp in-line fuse between the distribution block and the amplifier is recommended
  • 12-7/8"W x 2-5/16"H x 6-5/16"D
  • warranty: 1 year
  • Our 60-day money-back guarantee

Hands-on research from the Crutchfield Labs (what are the Labs?)

Features and Specs
Performance
RMS Power Output (Watts x Channels) 50 x 4
Peak Power Output (Watts x Channels) 200 x 4
Power at 2 Ohms (Watts x Channels) 75 x 4
Bridged Power (Watts x Channels) 150 x 2
Minimum Impedance Bridged 4
Minimum Impedance Unbridged 2
Best Frequency Response 20-20k Hz
THD at Rated RMS Power 1%
Signal to Noise Ratio 95 dB
Input Voltage 14.4v
Features
Amplifier Class AB
Low-Pass Crossover Frequency 20-250 Hz
Low-Pass Slope (dB/octave) 12 dB/octave
High-Pass Crossover Frequency 50-250 Hz
High-Pass Slope (dB/octave) 12 dB/octave
Bass Boost No
Bass Boost Frequency N/A
Fan Cooled No
Fuse Rating 60
Speaker Level Inputs No
Preamp Outputs No
Width (inches) 12-7/8
Height (inches) 2-5/16
Depth (inches) 6-5/16
Parts Warranty 1 Year
Labor Warranty 1 Year
Product Research
What's in the box?

Download owner's manual

  • 4-Channel amplifier
  • 4mm Allen wrench
  • 2mm Allen wrench
  • Four 1/2" Self-tapping screws
  • Instructions (English/ German/ French/ Spanish/ Italian)

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Features

Gain: The front and rear amps have independent rotary gain controls adjustable from 150mV to 4V.

Crossover:

  • Front: high-pass; crossover point variable from 20 to 250 Hz, 12 dB/octave slope
  • Rear: switchable between low-pass, full range, and high-pass; crossover point variable from 50 to 250 Hz, 12 dB/octave slope

Connections:

  • Battery: set screw terminal; accepts up to 4 gauge wire
    • Fuse: an external 60-amp fuse (not included) must be installed on the power wire; if a wiring kit is used which includes a fuse with a value other than 60-amps, the original should be replaced with a 60-amp fuse
  • Remote: set screw terminal; accepts up to 10 gauge wire
  • GND (ground): set screw terminal; accepts up to 4 gauge wire
  • Speaker Output: four pair of set screw terminals; accept up to 10 gauge wire
  • Line Inputs: 2 pair of stereo RCA jacks
 
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Lightning Audio LA-4100MINI Reviews

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Filter by rating:
5 out of 5

2011 gmc crew cab

Written By derek, sacramento, ca on Saturday, February 01, 2014
 
my dealers service dept. (reliable Cadillac) gave the wiring diagram for my factory gmc bose system i removed the factory amp the nav deck has low level out puts i spliced rca connectors into them and removed the bose amp i installed a lighting audio 4100 mini and wired it 2 the front bose and the rear doors and factort center sub then installed a lighting audio 1000 mdmini to a fosgate punch 12" sub under the rear seat . the system sound incredible. and I've had no trouble. i listen to everything from nwa to hank williams
Pros:
simple , no thrills and preforms great
Cons:
non
Was this review helpful?    Yes | No
 

1 question already asked

What is country of origin...where is it manufactured? [ richard  Jul 06, 2014 ]
1 answer
  • I forwarded your question to an Advisor and they responded with the following: This information is subject to change, but our current information shows China as the country of origin. If you would like to discuss further you can contact an Advisor directly by phone (1-800-324-9695) or online chat. [ Krissy Staff  Jul 07, 2014 ]

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For a more in-depth review and enhanced detailed information on the Lightning Audio LA-4100MINI, please visit the Crutchfield website product page (/ISEO-rccbcspd/p_4954100MIN/Lightning-Audio-LA-4100MINI.html ).