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  • SMSL SA50 50Wx2 TDA7492 Class D  Amplifier + Power Adapter (Silver)
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SMSL SA50 50Wx2 TDA7492 Class D Amplifier + Power Adapter (Silver)

by SMSL
| 14 answered questions

Price: $82.99
Sale: $66.99 & FREE Shipping. Details
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In Stock.
Sold by Gemini Doctor and Fulfilled by Amazon. Gift-wrap available.
  • SMSL SA-50 has real 2 * 50W Stereo circuit design
  • SMSL SA-50 has silver and black color
2 new from $66.99

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Frequently Bought Together

SMSL SA50 50Wx2 TDA7492 Class D  Amplifier + Power Adapter (Silver) + AmazonBasics 16-Gauge Speaker Wire - 50 Feet + Monoprice 109436 High-Quality Copper Speaker Banana Plugs - 5-Pair, Closed Screw Type
Price for all three: $85.11

Buy the selected items together


Product Description

Real 2 * 50W Stereo circuit design;
The internal parallel the fever Philips 6600uf filter capacitor (reservoir) to meet the power needs of bursting, voice switching power supply side to solve delicate problems;
thereby achieving high-level / all original parts manufacturing;
advanced oxidation process grain pull aluminum shell;
Delta OEM DC24V 4.5A (108W) power supply, over-current point 6A.
The machine is BTL output, that is to negative side of speaker out is not public grounded (the two speakers cable must independent connect, no grounding together), we must strictly in accordance with the marking of plus or minus cable connection, this T amp is not recommend for car or bike use.
Output :
Speaker OUT (Left) x 1 pair (+ / -)
Speaker OUT (Right) x 1 pair (+ / -)
Power Indicator (Blue LED) around the volume control x 1
Power Supply input DC 24V 4.5A

Product Details

  • Shipping Weight: 2.2 pounds (View shipping rates and policies)
  • ASIN: B00A2QLGEQ
  • Item model number: SMSL SA-50 Silver
  • Average Customer Review: 4.3 out of 5 stars  See all reviews (34 customer reviews)
  • Product Warranty: For warranty information about this product, please click here
  • Date first available at Amazon.com: July 2, 2012

Customer Questions & Answers

Customer Reviews

4.3 out of 5 stars

Most Helpful Customer Reviews

21 of 23 people found the following review helpful By MWebb TOP 1000 REVIEWER on February 7, 2013
Verified Purchase
I don't smoke mind you, but the comparison to a couple packs of cigarettes isn't far off from accurate.

If your music/amplifier needs have moved away from enormous receivers that hog desk space, to wanting a compact amplifier with built-in volume control (but no tone controls) this is a little gem. Emphasis on LITTLE. Sound quality matches the quality of my NAD gear, but uses much less power and generates so little heat you don't have to stress about blocking air vent holes (there are none) or covering it up (my mail is sitting in mine and it is still cool to the touch). And of course this is a lot easier to make space for, whether on a dressing table in a bedroom, on a night stand, next to your computer, etc.

The only disadvantage is it has only one input source, via dual RCA jacks like on the back of a conventional receiver. So you won't be hooking up both a CD player and iPod Touch and computer output at the same time. You can hook up a Roku, which has L/R outputs, but you can't hookup an Apple TV, which has HDMI out. So you don't buy an amp like this to be a Swiss Army knife of features, you buy it for clean, cheap sound - SO much cleaner, better, louder than typical computer speaker solutions. Pairing this with a set of approximately $50 (a pair!) Dayton Audio B652 6-1/2-Inch 2-Way Bookshelf Speaker Pair and running your headphone output through this SMSL amp will produce GREAT computer monitor sound.

SMSL, like many of the "newer" Tripath amp makers out of China, is using good quality capacitors and resistors. There isn't any power on "pop", or crackling from the volume control as you run it up and down.
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7 of 7 people found the following review helpful By Pilgrim on November 15, 2014
This is not a T Amp. It's not based on a Tripath chip. It uses a ST Microelectronics TDA7492. It's still an interesting digital amp, and has more power (about 30 watts per channel) than many small cheap T amps. But it's not a T amp.

Does that matter? Maybe, maybe not. Some people think some of the T amps have a more tube-y sound. Or just a slightly different sound.

In any case, it's misleading to list this as a T amp.

For comparison - the comparable T amps are those based on the TK2050 chip. Something like the Topping TP22 TK2050 (TC2000/TP2050) Class T Digital Mini Amplifier, which is comparable in power for 8 ohm speakers and a 24 V power supply.
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3 of 3 people found the following review helpful By J. Pietsch on April 16, 2014
Verified Purchase
I am using this amp connected to an AQ Dragonfly via AQ Evergreen 3.5mm-RCA through AΞon (Axon) 8 speaker cable to an old pair of Advent Marbl outdoor speakers... those old cheap speakers now sound fantastic! This setup has inspired me to make a new set of speakers to fully realize the potential. I find myself in front of the computer and listening to music instead of upstairs in front of my main system. I am even shopping for hi-res music to experience it.

Some sound notes... Detailed, airy, amazing imaging, tight bass. This amp does not get in the way of the music, and allows the AQ DAC to shine. I had a Dayton DTA-100a in the system before, and no matter what I tried I couldn't get to liking it.

The SA-50 comes with a very large 24V-4.5A (108watt) power supply, which makes me confident that it will not run out of power when pushed to it's limits. With the amplifier being ~90% efficient, and output distortion starting to really kick in before it reaches max rated power, the power supply won't hold it back, unlike the Lepai 2020, which ships with a 12V-2A (24watt) power supply.

SMSL thought about all the little bits that could reasonably be improved on and implemented them.

Cheers!
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Verified Purchase
A lot of punch in a small package. I am hard of hearing, lost a lot of high frequency hearing, and have trouble hearing TV and Radio. I wanted a small basic amp to hook up the TV and an old Scott AM/FM tuner with a graphic equalizer so I could adjust the frequency's for better hearing with minimal expense. I have it all in place now and it works just great. This little amp has a lot of power. I am running a pair of 3 way 4 speaker bass reflex speakers and run the amp at about one quarter volume in a 14' X 18" room.
The amp only has one input on the back so you need a A/V switch to hook up more than one component. I purchased the Sima SVS-14 4 input manual A/V selector to be able to hook up up to 4 components. That also works very well. I also suggest getting banana plugs for the speaker wires that plug into the back of the amp since it's small and will be hard to hook up the wires without them.
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5 of 7 people found the following review helpful By R. Yamada on March 18, 2014
Verified Purchase
Well I read about the now famous, dirt-cheap Lepai amp in a Cnet review some time back. I was curious how it would perform on small bookshelf speakers connected to my pc (via various dacs I own). So I checked Amazon, which steered me to the Topping brand. It cost more but was worth it according to the reviews (I checked various models but lump them together). Then I found this SMSL amp. Not many reviews but it has more power than the Topping models I was considering.

I thought I'd give it a try. I was blown away! Very clean, crisp power. I don't know the real world specs but it sounds as good as the Audioengine N22 in my opinion; and for less than half the price. I don't own Topping or Lepai so I can't compare them. I can say the fit and finish is very good. It looks high end. Not cheap.

I'd recommend this amp for phones, MP3 players, PC's, Sonos, etc. I doubt it puts out clean power into 8 ohms at 50 watts average at low distortion but it's good enough. I don't know if it's stable into 4 ohms but my guess is yes.

My main gripes are that the power brick is almost as big as the amp and the DC connector sticks out a bit... Like it wasn't specifically designed for the unit (which I'm sure it wasn't).

Otherwise, this is a very capable, clean amp for smaller, efficient bookshelf speakers.
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