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Lepy LP-2020A Hi-Fi Stereo Power Amplifier

by Lepy
4.2 out of 5 stars 591 customer reviews
| 90 answered questions

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  • RCA Input ,Can be plug in with Ipod,MP3/MP4
  • Mini size easy to installation by DIY without manual, especially good fit for car, motorcycle bike, boat, every where!
  • Compact Size: 120mm (D) X 147mm (W) X 42mm (H)
  • Tripath TA2020 amplifier chip provides efficient, powerful sound
  • Aluminum alloy solid case and also easy to distribute the heat.
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Technical Details

  • Brand Name: Lepy
  • Model Number: LP-2020A
  • Output Wattage: 20
  • Surround Sound Channel Configuration: 2
  • Color: black

Product Description

The Lepy LP-2020A uses the Class-D Lepy LP2020 Audio Amplifier IC for low distortion, acoustically accurate reproduction of music. Ideal for both home and car audio applications. Tone/Direct switching allows for customized listening via separate Bass and Treble adjustments or original audio source signal can be passed through without enhancement. Built-in loudspeakers protection circuit triggers when the amplifier is turned on to protect speakers from high volume bursts of audio. Over-voltage protection circuit shuts down amplifier should input voltage exceed 14.4 volts DC. State of the art design using surface mount components and advanced engineering for proven performance, reduced signal interference, and long operational life. Specifications: Input Power: DC12-13.5V >3A Output Power: 20W x 2 RMS Speaker Impedance: 4-8 Ohm Frequency Response: 20Hz-20 KHz Minimum THD: <0.4% SNR: >80 dB Input Sensitivity: 200mV Input Impedance: 47k Ohm

Product Information

Technical Details

Item Weight 1 pounds
Product Dimensions 4.7 x 1.7 x 5.8 inches
Origin Imported
Item model number LP-2020A
Wireless Remote No

Additional Information

ASIN B00C2P61FO
Customer Reviews
4.2 out of 5 stars 591 customer reviews

4.2 out of 5 stars
Best Sellers Rank #125 in Electronics > Televisions & Video > AV Receivers & Amplifiers
Shipping Weight 1.1 pounds
Domestic Shipping Item can be shipped within U.S.
International Shipping This item is not eligible for international shipping. Learn More
Date First Available September 24, 2012

Warranty & Support

Product Warranty: For warranty information about this product, please click here

Customer Reviews

Top Customer Reviews

SOUND & LONGEVITY
The sound and longevity of the Lepai is only as good as what you connect to it. The LP-2020A+ is not a $24 miracle worker. It is very cheaply made but still an incredible buy for the price. The Lepai does thin and muddy the sound of whatever you connect to it so it is advantageous to start with quality speakers that have a good frequency response. In the Amazon reviews for the main listing of the Lepai if you type in Bose, B&W, Definitive, Infinity, JBL, Carvin and Boston there are well over 100 reviews that come up. People that connect this amp to good speakers have more positive reviews of the amp. Taking it a step further, people that connect the Lepai to large bookshelf or floor standing speakers, perhaps unsurprisingly, achieve the best sound and have the least complaints. Looking at those reviews the Lepai is a 4 1/2 star product. I know sites like CNET suggest grabbing some old speakers in the garage gathering dust or a cheap pair of surround speakers or a an inexpensive pair of small bookshelf speakers with the Lepai to create a very affordable desktop setup. However, the reality is if you connect inexpensive speakers to this amp you will get mediocre sound

Looking at those reviews, people that connect this amp to quality speakers, large bookshelf or floorstanding speakers, along with having better sound have less failures with the amp. Less efficiency speakers can be more taxing on the amp and when listening to large full sounding speakers compared to small surround speakers you likely will not turn the volume up as high in order to fill the room with sound. If looking to connect the Lepai to a pair of 4 ohm speakers know that a 4 ohm load has less resistance, therefore the amp has to provide more current than with an 8 ohm load.
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I have used quite a few audio amplifiers in the past. A friend of mine has recently purchased this improved Lepai amp and I had the chance to play with it. Below is my review.

The amp is based on the Tripath TA2020 chipset. Tripath is not around anymore but this chipset somehow is still found in several amplifier products on the market. The sound quality from the Lepai is quite decent. It is rated at 20 Watts RMS. However, it comes with a 12 V wallwart power supply that is rated at a maximum current of 2 Amps. Given the power efficiency of the TA2020, one can easily figure out that the actual RMS power of this amps is only around 2 x 10 Watts RMS. According to the TA2020 data sheet, the amp will already have 10% distortion when driving an 8 Ohm speaket at 10 Watts due to the low supply voltage of 12 Volts.

However, when you are driving a 4-Ohm speaker up to around 10 Watts or an 8-Ohm speaker up to around 5 Watts, this amp has quite low distortion. While the TA2020 chipset is known for it's low distortion, one drawback of this chipset is that you will hear a constant hissing if you turn the volume up which is because of the limited amp's signal-to-noise ratio. The hissing is mostly quantization noise which is the direct result of how the TA2020 t-amp operates internally. This noise is most pronounced at higher frequencies. If you hook up the amp to an audio analyzer, you'll see a fairly high noise floor that rises with higher frequencies.

While I do like the sound quality, I am less impressed with the build quality of this amp, in particular the fragile speaker terminal. This connector seems quite fragile and may break easily. So be extra careful when making the connections.
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1 Comment 38 of 43 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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Verified Purchase
What made this style of amplifier one of the best choices in mini amplifiers? It was the Tripath Amplifier chip TA2020-020, an amplifier IC that has unparalleled clarity and performance. The Lepy in this listing IS NOT a TRIPATH based TA2020-020 amplifier! In fact, it is a cheap class D amplifier IC that has been overstamped so that you can't even identify the amplifier chip that was used! This Lepy amplifier has the cosmetic look of the original Lepai LP-2020A+ .. but that's where it stops, because once you open it up it's a different story! It's only been made to resemble the Lepai LP-2020A+ You can tell by the pictures the HUGE difference in the internal electronics and design. Don't be snookered, if you want the clarity and performance of the original TripaLepai LP-2020A+ Tripath TA2020 Class-T Hi-Fi Audio Amplifier with Power Supplyth-based amplifier, buy the LEPAI LP-2020A+ original, not this cheap imitation.
6 Comments 24 of 26 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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Verified Purchase
I actually expected it to be a cheap-o, with static and obvious flaws. I have this running two 8 ohm floor speakers, have had sound in from an iPod and a laptop, let it run for 24 hrs straight, pushed the volume up to max, no distortion, no hissing, no popping, just clean sound.

Very small and light, even after 24 hrs it was not hot, or even warm.
There is a switch to allow bass/treble control or to allow sound as is, no extra stuff to increase the odds of a problem.

Simple, small, powerful, it just amps up the sound.
I did get the 12v 6amp power supply extra, put the one that comes with it in a box of "extra" stuff. = recommended by others, and a very good idea.

UPDATE 6-1-2014 the unit still works, still no problems with it. It is exactly as the pictures and description say: just a simple amp; perfect for my application, most of the tone and adjustments are done on the computer that has the audio library
In use nearly every day, 6 to 8 hours.
1 Comment 13 of 14 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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