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
    (302 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 4.4371 out of 5 by 302.
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
Rated 5 out of 5 by from Review # 299This amp is the updated version, with a couple things added not mentioned in the specs. My amp came with a Tone in/ out switch. Actually a useful feature- I will probably leave it off. It also came with a 3 amp supply, nice to have the extra power. (The description says that the power supplies may not be all the same.) The sound quality is very good, I am happy with it. It has enough power to distort my vintage speakes. Can put out enough bass to shake the floor with my rebuilt Fisher tower speakers. Right now, it's powering a custom made set of bookshelf speakers with Dayton 4" aluminum woofers. Perfect match. Oh yes, it's very light weight- I will probably have to add rubber feet, or a piece of steel to weight it down.
Date published: 2015-03-28
Rated 5 out of 5 by from great ampGreat clean sounding powerful amp! Very fast shipping, and quality service.
Date published: 2015-03-21
Rated 5 out of 5 by from Fantastic item. LePai amp...Over and above my expectations on my item. Shipping was faster then expected as well. I am very Happy.
Date published: 2015-03-06
  • 2015-05-04T06:17CST
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  • cp_1, bvpage1
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  • clientName_PartsExpressInternational

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

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

What might be the easiest/cheapest way to add FM radio tuning capabilities to this little gem?  All opinions are welcome. Thanks!

Asked by: SeanMcCauley
I own this amp. I bought it specifically to provide an FM background presence in my workshop. Solution: Purchased a VERY good Kenwood component tuner for $10 at a local pawnshop. They had several brands and models available, all $10, a small fraction of the purchase price. Apparently people sell their entire stereo systems to pawn shops, and few buyers want the tuners.
Answered by: JGEmerson
Date published: 2015-03-31

Will this power a pair of Sony ss-b1000 speakers or do I need more power. This is for a bedroom TV / mp3 player were high volume is not always needed.  

Asked by: ibabox
I would recommend using a amplifier with a bit more power like the DTA-120.
Answered by: MattW
Date published: 2015-04-08
  • 2015-05-04T08:02CST
  • bvseo_cps, prod_bvqa, vn_cps_3.1.1
  • cp_1, bvpage1
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