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TDA7492 Digital Audio Amplifier Board 2x50W

Brand:| Model: TDA7492
Overview
This Class D amplifier board produces immense power in a condensed space.
Highlights
  • Class D amplifie produces 2 x 50 watt @ 8 ohms
  • Can be wired R+ to L+ for mono mode
  • Phoenix connectors for easy speaker hook up
  • 12" stereo wiring harness included
  • Short-circuit and over-temperature protection
  • STMicroelectronics TDA7492 chip is priced low but has big power
  • Four model GAIN parts can auto work on different voltages
Part # 
320-606
Weight: 0.1433 lbs.  
IN STOCK
List Price$24.99
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Part # 320-606
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Product Details

TDA7492 Digital Audio Amplifier Board 2x50W

Originally designed for high-end televisions, this tiny amp board delivers 50 watts into two channels. Use this Class D amplifier in DIY projects where high power is needed in a limited space.

The board includes a massive heat sink, and three dual-terminal phoenix connectors for easy termination of speaker lines. Included in the box is a 12" stereo input lead, making connection a breeze. Depending on the voltage powering the unit, you will need 1A to 4A of current.

Note: When the speaker impedance is 4 ohms, the operating voltage must be less than 18V. When the speaker impedance is 6 ohms, the operating voltage can not exceed 24V. When the speaker impedance is 8 ohms, the working voltage can not exceed 26V.

Specifications: Power handling: 2 x 50 watts @ 8 ohms • Minimum impedance: 4 ohms • THD: 0.1% @ 8 ohms @ 1 watt • Recommended power supply: 10V - 26V • Requires 1A - 4A • Stereo wiring harness included • Dimensions: 2-3/4" L x 2-5/16" W x 7/8" H.



TDA7492 Digital Audio Amplifier Board 2x50W
  • BrandParts Express
  • ModelTDA7492
  • Part Number320-606
  • UPC848864016580
  • Product CategoryAudio Amplifier Boards & Modules
  • Unit of MeasureEA
  • Product Rating
    (12 Reviews)
  • Weight0.1433 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.

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Reviews

TDA7492 Digital Audio Amplifier Board 2x50W
TDA7492 Digital Audio Amplifier Board 2x50W is rated 3.8333 out of 5 by 12.
Rated 3 out of 5 by from First Impression, Warm soundBought this and the TPA3116 to compare for future builds. First impression: This seems to be the more powerful, but I've decided it's really just a high gain setting from the get go. Actually, it's difficult to regulate lower volume settings because one click up on the iPhone volume from zero and BAM! it's actually kinda' loud already. By the time the volume setting from the source is at 30% this scrappy little amp is deep into what I call the too-loud distortion zone.Don't get me wrong, this thing has plenty of power for an average set of speakers, not just the high-efficiency variety. Seemed to have a warmer sound than the 3116 too, but unfortunately, the main chip died after about 4 hours use idling at 5% volume in a quiet interlude (playlist finished) with a strange 2-second "growl" (not from the source) followed by a puff of ozone flavored smoke. Parts Express is sending a replacement so I'm hoping for the best from module #2.
Date published: 2015-07-14
Rated 2 out of 5 by from Great little amp...BUTThis amp did the job perfectly for 9 months. Then one day, with all the same connections and speakers, it smoked at power up. The main amp chip just fried a couple traces, and that was it. While I liked it very much, I think maybe the heat sink set up, and attachment to the board was problematic. To get good thermal connection with the power chip, it caused the board to warp a little. In the future I will seek out power chips packages that allow a direct connection to the chip, rather than transferring it through an attachment to the board.
Date published: 2015-07-03
Rated 5 out of 5 by from Excellent sounding ampI bought both this amp and the TPA3116 to try out. I used both for a portable decoder/amp receiver box I made and A/B'd these 2 amps with the same source and speakers. First 2 things I noticed were1. The TPA3116 has considerably less gain than the TDA7492.2. The TPA3116 has a very imbalanced frequency response that is overly forward in the midrange and upper midrange while the TDA7492 is much more balanced sounding, with a touch of laid-back midrange presentation.Comparing the 2 back and forth, I can to really appreciate how well balanced the TDA7492 is. It's overall sound is very pleasant and easy to listen to for Extended sessions. The TPA3116 just sounded off due to the imbalanced frequency response. The TPA3116 also seemed to roll off the very top octave while the TDA7492 didn't.Overall the TDA7492 exceeded my expectations for such a small and low cost amp. This will be my goto amp going forward for projects.
Date published: 2015-04-10
Rated 3 out of 5 by from OK Amp. TPA3116 is betterif you need 25- 30 watts a side and this is not a bad amp. it will go to 50 but it is ugly. For a few more buck use the Yuan-Jing TPA3116 Class D. The TPA3116 put out a true solid 50 watts. I use this and the TPA3116 to drive the ADX Shaker which feels Great.
Date published: 2015-03-22
Rated 5 out of 5 by from Good sound for the pricePacks a punch for the size and price. Powering it with an 18 volt laptop power supply
Date published: 2015-03-09
Rated 4 out of 5 by from Very good soundI would give it five stars if it had a 3.5mm input. The sound quality is very good and the extra power rocks! I've tried a number of ac adapters and it loves the 15 volt I have from an old iHome clock radio the best.
Date published: 2015-01-19
  • 2015-07-27T06:58CST
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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-expresss.com  for a prompt reply.
TDA7492 Digital Audio Amplifier Board 2x50W

Have a 27v 2.4Amp power supply.  Would that exceed the powers required by this board? Will it work or will it damage it?

Asked by: Rzrzrz
Going by the manufactures specs 27V will be too much for this amplifier and I can not recommend going above 26V.
Answered by: MattW
Date published: 2015-07-22

Basic wiring question; I get a full-volume buzz from my speakers until I have the input plugged into my 3.5 jack. Is there a way around this? Also wired a 500k pot (had it on hand) and get the buzz until the volume is about half way up. 

Asked by: WhiteTyrone
Please contact our tech support for more help with this question, tech@parts-express.com or 800-338-0531
Answered by: MattW
Date published: 2015-07-24

How would you go about using RCA cables as inputs? What parts would I need and how would I wire it? I don't see any switches - how is volume controlled and the board turned on? If it's receiving power, it's on?

Asked by: Dassault
Please contact our tech support for more help with this question, tech@parts-express.com or 800-338-0531 x1.
Answered by: GregT
Date published: 2015-06-25

Will this run good on a 12 volt power supply? Also I am looking for something like this that has Bluetooth built in? What do you have that will work for a volume control nob with on off built in?

Asked by: Jrod510
Regarding voltage supply, I would use a p/n 320-6546 to step up the 12v supply to a more appropriate voltage based on your impedance load (see product description above for voltages).  I've used that voltage converter to step up to 24v from a 12v SLA battery and power a Lepai p/n 310-298 amp (with built in bluetooth), and it works great.  
Answered by: scottadair
Date published: 2015-06-03

How can i run in mono this amp for a 4ohm load speaker ?  Can it give 100w in mono?

Asked by: Lucas_85
The amp can run at 4 ohms into a channel and it will give you a bit more than 50 watts but it is not bridgeable. only the inputs can be paralleled for dual mono setup.
Answered by: TomI
Date published: 2015-05-20

Can the amp handel the signal in as a high level, like an amplified source? Should the level line input be more in lign with a mA source, like an rca type?

Asked by: yankeeboater
This amplifier cannot handle a high level input. It needs a line level such as an RCA level input.
Answered by: Chrisf
Date published: 2015-06-06
  • 2015-07-27T07:40CST
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