Lepai LP-2020A+ Tripath Class-T Hi-Fi Audio Mini Amplifier with Power Supply

Brand:| Model: LP-2020A+
Product Video
This Parts Express Lepai Tripath-based Class-T mini audio amplifier's small size and clean 20 watt output make it perfect for almost any auto or home audio project or DIY application where space is limited. Power supply included when purchased from Parts Express.
A restocked/refurbished, or Open Box unit of the product is available -- see it now
  • Tripath TA2020 amplifier chip provides efficient, powerful sound
  • Economical price and tremendous performer
  • Compact size makes this amplifier great for projects and DIY audio applications
  • Power supply included when purchased from Parts Express
  • Aluminum enclosure that is lightweight yet sturdy, and acts as a heat sink
  • 3.5 mm jack allows easy connection to iPods, cell phones, and all sorts of MP3 players
Part # 
Weight: 1 lbs.  
List Price$34.99
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Your Price
Buy 4-23 $25.50
Buy 24-up$23.80
Part # 310-300
Qty:  EA
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Product Details

Lepai LP-2020A+ Tripath Class-T Hi-Fi Audio Mini Amplifier with Power Supply

The leading edge of a small-amplifier revolution

This special purchase Lepai Tripath-based mini audio amplifier is ideal for both home and car audio applications. The amplifier's TA-2020 amp chip is a 20W/ch. continuous average two-channel Class-T Digital Audio Power Amplifier IC that incorporates Tripath's proprietary Digital Power Processing™ technology. Class-T amplifiers offer the audio fidelity of Class-AB designs combined with the power efficiency of Class-D amplifiers. The Lepai amp's clean, 20 watt output makes it perfect for almost any auto or home audio project or DIY application.

Get connected quickly and start listening to music

Google "Lepai LP-2020A+" and you'll find this little amp has been discussed and raved about! Each unit has an RCA Left and Right channel input, or you can use the 3.5 mm stereo input jack for plugging in almost any music source, such as iPods, cell phones, or MP3 players. Convenient spring terminals make connections to your speakers quick and easy!

Arrives ready to work, and keeps on working

The Lepai mini amplifier has an aluminum enclosure that is lightweight, yet sturdy, and acts as a heat sink to keep the amp running cool. Color may vary. Includes at minimum 12V, 2A power supply. PSU styles may vary.

Specifications: • Power output: 2 x 20 watts RMS • Input impedance: 47k ohms • Frequency response: 20 Hz - 20 kHz • Input sensitivity: 200 mV • Minimum THD: <0.05% • Dimensions: 4.72" D x 5.79" W x 1.65" H.

Power Supply Specifications: • Input: 100~240 VAC, 50-60 Hz • Output: 12 VDC, 2A (minimum) • 2.1 x 5.5 plug.

c|net Best Tech Under $50 - February 14, 2014

Product Specifications
  • Special FeaturesClass T
Lepai LP-2020A+ Tripath Class-T Hi-Fi Audio Mini Amplifier with Power Supply
  • BrandLepai
  • ModelLP-2020A+
  • Part Number310-300
  • UPC844632088353
  • Product CategoryHome Audio Amplifiers
  • Unit of MeasureEA
  • Product Rating
    (305 Reviews)
  • Weight1 lbs.
  • California Prop 65

    Warning: California residents only. Please note per Proposition 65 that this product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

View similar products to the Lepai LP-2020A+ Tripath Class-T Hi-Fi Audio Mini Amplifier with Power Supply
in the Home Audio Amplifiers product category.


Lepai LP-2020A+ Tripath Class-T Hi-Fi Audio Mini Amplifier with Power Supply
Lepai LP-2020A+ Tripath Class-T Hi-Fi Audio Mini Amplifier with Power Supply is rated 4.4426 out of 5 by 305.
Rated 5 out of 5 by from No Distortion!!A high quality amp for such a low cost. No distortion at loud volumes!!
Date published: 2015-05-21
Rated 5 out of 5 by from Perfect choice for small (and desktop) speakersI'd heard good things about these small amps, so decided to pick one up to power the pair of Jeff Bagby's "Quarks" I'd built for my wife's office. What a pleasant surprise! ...this little amp drives the small speakers cleanly and with great clarity, and the tiny footprint made placement a breeze Absolutely, I'll pick up another for other similar projects and would definitely recommend to a friend.
Date published: 2015-05-15
Rated 5 out of 5 by from Very Nice Product.I have had this amp for 3 weeks and it was everything I had hoped it would be. Perfect size, well built, great sound and controls you would find on much more expensive amps. Easy to connect .
Date published: 2015-05-05
Rated 2 out of 5 by from Excessive EM radiationAfter reading many positive reviews about the amp I was looking forward to using it to replace a dedicated amplifier for a pair of speakers in my wife's sewing room. The sole source component is a tuner. Unfortunately the EM radiated by the amp (or PS not 100% sure) completely ruined the reception, so I had to put back the original amp, an 80's vintage solid state unit. The Lepai might be a nice little low power amp and perfect for some applications, but for me the EM interference made it unusable.
Date published: 2015-04-23
Rated 5 out of 5 by from Great Little Amp!!I bought this to power the little Dayton audio outdoor speakers for my deck. Works Excellent. With a little larger power supply it cranks up a bit louder. The one that comes with still works very good. and I am very happy with this product.
Date published: 2015-04-14
Rated 4 out of 5 by from Smooth Clean and Powerful but be CarefulVery good clarity and ample power. This is my third unit. The first does the patio ceiling speakers (yamaha 8") the second for a computer (Bose 141s)and this new one is being used to power Klipsh B20s in a small craft room. Shortly after purchase, I unwisely pushed the Lepai into clipping for a few moments. An hour later it died.Parts Express worked it out for us and is sending another. Good Product and customer service.
Date published: 2015-04-12
  • 2015-05-27T06:50CST
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Product Q&A

Get your questions answered from other customers
who own this product or have experience with it.
If your question requires design or troubleshooting information,
please email tech@parts-expresss.com  for a prompt reply.
Lepai LP-2020A+ Tripath Class-T Hi-Fi Audio Mini Amplifier with Power Supply

my tablet dosen't put out enough power to hear well when hooked up to my truck stereo via 3.5 male to male cable. even when stereo is turned up all the way. this is mainly with downloaded audio books. what can i use between the two to amplifie, with a 12v

Asked by: Anonymous
Please contact our tech support for more help with this question, tech@parts-express.com or 800-338-0531 x1.
Answered by: MattP
Date published: 2015-05-26

I'm trying to create a cheap outdoor movie theater. I'm thinking of pairing this amp with a pair of the Dayton 4" outdoor speakers (part # 310-030). Will this combo be able to deliver decent volume for outdoors. I will look to add a sub in the future.

Asked by: Mitch A
This combination should work relatively well as long as you don't crank the bass knob all the way up. Keeping the tone controls bypassed will allow for more output, you won't get much below 100 Hz from these anyway.
Answered by: MattP
Date published: 2015-05-13

What's the Output Impedance of the amplifier? 

Asked by: cme0848
This amplifier will handle 4 or 8 ohms loads.
Answered by: MattP
Date published: 2015-04-21

I have a 12v 5a & 12v 6a power supply. Can I use either one? Will be driving 2 Bose bookshelf & 2 6x9 Polk Audio speakers.

Asked by: Zoey
Yes either power supply will work with this amplifier.
Answered by: MattP
Date published: 2015-04-22

Does this AMP have enough juice if I were to hook up a total of 4 speakers and each speaker was 100 Watts?

Asked by: dbmcm
As long as you do not go below the specified 4 to 8 Ohm rating it will work.
Answered by: RobTaylor
Date published: 2015-04-16

What 4" speakers that you sell would work best with this amp?

Asked by: helislider
we have many but an option would be 310-030
Answered by: TomI
Date published: 2015-04-01
  • 2015-05-27T08:13CST
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