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 for easy connection to iPods, cell phones, and all sorts of MP3 players
Part # 
Weight: 1 lbs.  
List Price$34.99
Regular Price$26.88
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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

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 amps combined with the power efficiency of Class-D amplifiers. The Lepai amp's clean, 20 watt output makes it perfect for most any auto or home audio project or DIY application.

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! 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 12V, 2A power supply.

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 • 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
    (279 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
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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 4.4337 out of 5 by 279.
Rated 5 out of 5 by from Use it as intended and you'll love it.I bought two of these recently, I had some Polk T15 bookshelves sitting around that used to serve as surrounds in my living room, the wife made me switch to smaller satellites. I set out to find a product to power them in other applications around the house and landed on the Lepai.In the near-field desktop situation, the sound is remarkably clear. There's actually more definition to the bass and more separation in the instruments than I had from these same speakers on my 125x7 sony HT amp. The volume is surprising with the T15's. I think that paired with a small powered sub with speaker-level inputs, a polk psw108 or similiar, it would make a very passable setup for small-room HT or stereo listening. Without a sub, the bass is detailed, there's just only so deep the amp can go with a 5.25" woofer. These speakers can get loud enough with this amp to make me uncomfortable sitting in front of them and disturb people in adjacent rooms before clipping sets in.In the garage environment (sheetrock box with a polished concrete floor) the speakers get a fair amount more room gain. The sound isn't as clear but it is impressively loud, certainly enough to annoy my neighbors if they're using they're yard, though not enough to carry into their house. Certainly it works for the purpose of playing my music and audiobooks while I work on the Jeep. It would need a more efficient speaker and a powered sub to really fill a large shop though I think.As some of the other reviews mention, this amp really doesn't seem to be up to 20Wx2 rms, based on some measurements I took it really seems to do more like 10-12x2 rms. I wonder if the specs are mistaken, the amp actually has "20W RMS" printed on it, not "20W Stereo" or "20Wx2". If they're claiming 20W rms total then they're dead on or even a bit conservative.Oh: Final note, mine have an on/off pop, though not a severe one. I think I have the 2020A though, not the 2020A+, I believe the "+" indicates an updated circuit to remove the pop using a relay.
Date published: 2014-10-31
Rated 4 out of 5 by from Loud and cleanPurchased this along with a pair of fullrange drivers to construct a simple bedroom sound system for my son. Unit is amazingly light and produces clean audio with surprising tonality. Simply outstanding for such a low price. Highly recommended.
Date published: 2014-09-16
Rated 4 out of 5 by from Not an amplifier to be taken seriously.I just bought this amp. It is a Low - Power amp. That being realized, I'm not sure about the 20 watts per channel, both driven at the same time, maybe one channel at 20 watts per side may seem correct. Seems to break up quite easily. Nice package. May be great for small Ipods to sound a little better then what you have. DO NOT expect miracles from this thing.
Date published: 2014-09-01
Rated 5 out of 5 by from nearly indestructableI have been using these amps for over a year and none of the more than a dozen has failed me. I've abused these little gems in ways you cannot imagine. I've short circuited the outputs accidentally, countless times, I've over-driven them and the protection circuit never fails to function, I have listened for a half hour at 100 db plus driving a 2.6 ohm load with barely perceptible distortion at 105 db peaks. They remain cool to the touch even after this abuse. Yes there are better amps but they all cost considerably more; 10 to 100 times more, and even people with little Hi-Fi experience can't damage them without drop-kicking them. They do sound very good under most reasonable loads. I will never be without them. They are perfect for serious testing and most of all critical listening to many different loudspeakers. And best of all they are nearly indestructible
Date published: 2014-08-28
Rated 4 out of 5 by from Good Value for the MoneyWorks Well, Sounds Good. Louder than I predicted it would be. Removed aluminum case and installed directly into speaker box, soldering connections directly to Amp Board for Power, Ground, Audio inputs and outputs.Used with a pair of HiVi BN3 3 ich speakers.http://www.parts-express.com/hivi-b3n-3-aluminum-driver-round-frame--297-428Sound quality Exceeded my expectations.
Date published: 2014-08-26
Rated 5 out of 5 by from amp reviewgreat looking amp. Works great with t.v.in spare bedroom making volume loud enough to hear over exercise equipment.
Date published: 2014-08-25

Product Q&A

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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

hi, I want to order a lepai 2020a+ amp with Dayton  B652, first i want to know if i can have an european power input plug or i must use adaptator? If I want to make a 2.1 with a small sub later, Lepai LP-168HA is a better choice? thanks

Asked by:

Can the analog out of a dish sat. receiver be used to feed into the amp? If so could each sat. out be split to feed both TV and amp without any problems?

Asked by:

Can this or should this be used as a pre amp for an iPod connected to a stereo receiver?

Asked by: Oops
This cannot be used as a preamp, it only has speaker level outputs. If you need to boost the signal from an iPod, you might want to consider a headphone amplifier.
Answered by: MattP
Date published: 2014-11-19

How to eliminate the popping sound during shut down?

Asked by: yklivan

How could this be connected to an MTM speaker if at all?

Asked by: Marlin
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: 2014-11-03

Hello,  I have one of these units with a bad spring clip. Do you sell any replacement parts ?  Also I see other sites list a new improved 2014 model. What are the upgrades ?  Thanks Bob

Asked by: sonicbob
The 4 position spring loaded wire terminal block is part # 260-305
Answered by: TomI
Date published: 2014-10-09


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