TDA7492 Digital Audio Amplifier Board 2x50W

Brand:|Model: TDA7492
This Class D amplifier board produces immense power in a condensed space.
In Stock
List Price$24.99
You Save34%
Your Price
Buy 10+$14.85
Part # 320-606
  • 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

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
    (14 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.

View similar products to the TDA7492 Digital Audio Amplifier Board 2x50W
in the Audio Amplifier Boards & Modules product category.


TDA7492 Digital Audio Amplifier Board 2x50W
TDA7492 Digital Audio Amplifier Board 2x50W is rated 4.0 out of 5 by 14.
Rated 5 out of 5 by from Mangepan MMG-W surround ampBought this for use as a surround amp for MMG-Ws (wall mounts). I know Parts Express recommends a specific power supply, but I went for the 15V 4.5A unit found it the buyouts. So far everything is working great: HS barely gets warm, and so there's plenty of output for my purposes (I'm in a loft, so there's not a need for too much volume). I'm using the pre-outs on my Yamaha RX-V667 to a set of DIY RCAs.One note, if you strip too much of the heat shrink off the input ground as I did to make the RCA jacks, you'll be left with bare stranded wire underneath. The heat shrink is the only jacket for that wire, so don't take too much off as I did. The leads are a little short! That's why there's the temporary tape in the pictures. As others have noted, there's no noise, and it handles the 5 Ohm Maggies just fine!
Date published: 2015-09-21
Rated 5 out of 5 by from Good SoundI was pleasantly surprised at how good this amp sounded, more than enough gain at the input and quiet as a grave. I powered mine with 18 volts, so it didn't put out its rated power. I measured 12.5 watts into 8 ohms, per channel. It was still plenty of power for reasonable speakers indoors. It will also run well on just a 12 volt battery. The input is very sensitive, so you will need a volume control for each channel, I used 25k pots on both channels. I did experience a hum problem (probably ground loop) when using the same power supply for the preamp, will use a different supply next time. I was able to eliminate my hum by connecting my power supply directly to the big capacitor on the bottom of the board. While the rated power may be a little optimistic, it worked fine for me.
Date published: 2015-09-10
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
  • 2015-10-09T06:47CST
  • bvseo_cps, prod_bvrr, vn_cps_3.1.6
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_14
  • loc_en_US, sid_320-606, PRD, sort_mostRecent
  • clientName_PartsExpressInternational

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  for a prompt reply.
TDA7492 Digital Audio Amplifier Board 2x50W

How does one wire this amp for mono output?  The description says L+ to R+.  Does that mean L+ to speaker + and then back to R+ from speaker -? 

Asked by: SeanMcCauley

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, 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, 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
  • 2015-10-09T07:43CST
  • bvseo_cps, prod_bvqa, vn_cps_3.1.6
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_37
  • loc_en_US, sid_320-606, PRD, sort_recentQuestionsFirst
  • clientName_PartsExpressInternational

Recently Viewed Products

Get Deals
emailed to you every week.

Be the first to hear about new and exciting products,special pricing and incredible deals!

See This Week's "GET DEALS" Email
Get Sales Flyer
Parts Express
725 Pleasant Valley Dr.Springboro,OH 45066USA

© 1986-2015 Parts Express, All Rights Reserved

Live Chat Software