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

Brand:|Model: LP-2020A+
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.
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Part # 310-300
  • 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

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.

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
    (319 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 4.4545 out of 5 by 319.
Rated 5 out of 5 by from Super little T ampI needed a small amp to test some bookshelf speakers I was building. The Lepai LP-2020A was my introduction to class T amplification. Well, I was surprised by this amp, good controls, good sound, quiet... But I replaced the 2A 12VDC power supply with a 3A unit for better low end support. For bookshelf application this is a great solution. So I gave those bookshelf speakers and the Lepai LP-2020A to my brother for his work shop and he is very happy!! I ordered another one..
Date published: 2015-10-04
Rated 5 out of 5 by from mini amplifierUsed this mini amp for instrument mic stand monitor for flute.. sounds fine.
Date published: 2015-09-29
Rated 4 out of 5 by from works goodamp works good. size is great, small and lightweight. very impressed thus far.not the cleanest of power, especially at the higher end of it's spectrum, but is cleaner than i expected. knob is sticky, and you can definitely tell this is made in china with a lot of plastic. the blue light around volume knob is cool, except when trying to attenuate the level it is hard to see the small indicator dot. i used whiteout to remedy this, if change mind can scratch off with a fingernail
Date published: 2015-09-27
Rated 5 out of 5 by from Excellent little T-AmpI purchased a Lepai - LP-2020A+ T-Amp for using on my PC & other audio devices outdoors. First off, the little T-Amp sounds excellent powering all the speakers I have tried on it. I have tried 2, 4, 6, & 8 ohm speakers at sizes from 3 1/2", 5 1/4", 6 1/2", 8", 10", & 12" 2-way & 3-way designs with no problem powering them. If you have efficient speakers with high sensitivity of 90dB or higher this T-Amp will get pretty loud. I experienced excellent bass & treble with this T-Amp & the tone control adjustment knobs & volume knob are very smooth operating. Mine came with a 3-amp power supply instead of the 2-amp power supplies that I seen come with these T-Amps before. I bought a 5-amp power supply for mine & it makes a big difference in sound quality, it is well worth the extra cost! The 3-amp power supply doesn't provide anuff power for 40 watts to fully power this T-Amp & It is a good idea to always have more power than what you need for a little bit of over head. This is important if you plan on powering 2 or 4 ohm speakers because lower ohm speakers draw more current than higher ohm speakers. But in reality if you are only going to use low power speakers like the Dayton Audio - B652 6 1/2" 2-way bookshelf speakers or some thing pretty equal to them, the 3-amp power supply should work just fine for you with no problems. I would recommend the Lepai - LP-2020A+ T-Amp to anyone & everyone that wants a solid T-Amp for outdoor or indoor use. You just can't go wrong with the price & quality sound this T-Amp will provide. What are you waiting for? Buy one & you will be pleased with your purchase. You just can't beat Parts Express & there excellent products they provide.
Date published: 2015-09-10
Rated 5 out of 5 by from Wow, for the price, I'm truly impressed.I picked this up for the bedroom not expecting much. To give it a listen, I powered a pair of Fluance SX6 speakers (92dB sensitivity) (pd $130.00), then a pair of Klipsch RB 61 ii speakers (95dB sensitivity) (pd $400.00) and a pair of Klipsch Heresy ii (97dB sensitivity) (can be had on auction sites for $300.00-$600.00). This little amp drove them all clearly to levels higher than either my dog or I was comfortable with. I also have a Yamaha R-S700 100 watt receiver that I compared it too. I'm not going to lie and say this little amp preformed as well as the Yamaha does because it doesn't. That said, the Yamaha costs 18.5 times as much as this little amp. The Yamaha is more refined plays louder etc. Thing is the $500.00 Yamaha doesn't play 18.5 times better or louder than this little amp not even close to to 18 times better, maybe twice as loud and for sound refinement they're different yamaha=smoother, little t-amp more edgy in the high freq, This little amp does a fine job in the low freq too.
Date published: 2015-09-09
Rated 5 out of 5 by from I am shocked at how good this amp performs.I purchased this T-Amp to use with a 5 amp power supply & also connect it to a 8 channel speaker selector & 10 band equalizer to get the most out of it. The 5 amp power supply makes a huge difference in sound quality compared to the 3 amp power supply that came with the amp. I run (4) 3 1/2' , (2) 5 1/4" , (4) 6 1/2" , (2) 8" , & (4) 12" speaker sets one at a time or all at once with the 8 channel speaker selector with overload protection to keep from dropping under 5-ohms during operation. If you want to adjust the treble or bass you can, unlike the other T-Amps out there on the market that make you listen to music the way that they think sounds best & that is a deal breaker in my book. I make my audio equipment do what I want & not the other way around. I am not going to waste my time & money on a T-Amp with only a power button & volume knob on the front of the face, just to have it sound awful because I have no way to make it sound the way I want it to. Until some other companys start making T-Amps with Treble & Bass tone controls, the Lepai - LP-2020A+ is the only option. Don't listen to reviews that say this T-Amp is no good because they most likely bought a more expensive T-Amp from an other company that just plain sucked & they want to trash talk the best T-Amp for the money out there. The sound quality is very good with the old 1990's Optimus - 10 band equalizer I use on it. All in all its well worth the money & you can buy one knowing that it will power 8, 6, 4, & 2 ohm speaker with ease. I just can't say anuff good things about this little T-Amp. So buy one & find out that it was so worth it & show others what its all about. Parts Express is such a great company & thanks to them again for the great products they provide to all us audio nuts.
Date published: 2015-09-09
  • 2015-10-07T06:21CST
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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-express.com  for a prompt reply.
Lepai LP-2020A+ Tripath Class-T Hi-Fi Audio Mini Amplifier with Power Supply

Can you switch inputs from RCA to 3.5 Jack? If Yes where is the switch? Dave

Asked by: DaveMack
No, the 3.5mm jack overrides the RCA input once something is plugged into it. There is no switch for the two inputs.
Answered by: MattP
Date published: 2015-10-05

Cain some won please tells me ifs you cain put the little leepee amplifiers in thare bridge mono modes and use two separate amplifiers. 

Asked by: Barnacle Obama
These amplifiers are not bridgeable.
Answered by: MattP
Date published: 2015-10-05

If I'm not going to use the ac adapter, will I need a fuse between the amp and a 12v battery?

Asked by: Zmaster
A fuse is not required but it can't hurt. I would recommend a 2A type if you decide to install one.
Answered by: MattP
Date published: 2015-10-06

Does this amp come with the power cord?

Asked by: Rick58
Answered by: MattP
Date published: 2015-10-06

What do I need to run this T-Amp on a 12 volt truck battery to make it portable? The battery is a AC Delco - 12 volt 820 cranking amp acid battery. It seems no one has any information on doing this.

Asked by: Pain for Fun 1980
You will only need a power cord to plug the battery into the amp. Something like below will work fine.http://www.parts-express.com/parts-express-21mm-x-55mm-x-112mm-dc-plug-with-6-ft-cord--090-489
Answered by: MattP
Date published: 2015-10-03

What is recommended for hooking up 32 Ohm headsets to this amp?

Asked by: stratos
This amp is not designed for headsets or headphones, it only has speaker level outputs.
Answered by: MattP
Date published: 2015-10-01
  • 2015-10-07T07:46CST
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