Sure Electronics 2x25W at 6 Ohm TDA7492 Class-D Audio Amplifier Board Only

Brand:|Model: AA-AB32165
Choose this 2 x 25 watt amplifier board to power your next speaker project. A Texas Instrument's Class D TDA7492 amplifier chip is employed to produce high fidelity sound efficiently.
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List Price$39.95
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Part # 320-332
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Highlights
  • Pre-assembled, pre-tested
  • Superb sound quality
  • Perfect Class D architecture
  • Two channels—each up to 25W
  • Up to 90% efficiency
  • Does not require a heat sink for most applications
  • Line level analog audio input

Product Details

Sure Electronics 2x25W at 6 Ohm TDA7492 Class-D Audio Amplifier Board Only

This Class D dual channel amplifier board employs a Tripath-style Texas Instruments TDA7492 chip. Each channel is rated at 25W, delivered with state-of-the-art sound quality. The TDA7492's efficiency eliminates the need for an external heat sink when playing music under average listening conditions. Integration of high-quality capacitors ensures hi-fi amplification output. Requires a DC power supply ranging from 14 to 19 VDC (available separately) and can be used to drive any 4 ohm or 8 ohm passive speakers. Gain control is accomplished by setting two DIP switches, and there are four gain modes available: 24.6 to 26.6 dB, 30.6 to 32.6 dB, 34.1 to 36.1 dB, and 36.6 to 38.6 dB. .

Specifications: 
• Output power (x 2 channels): 20W @ 8 ohms (15 VDC <0.08% THD+N), 25W @ 6 ohms (15 VDC <10.0% THD+N) 
• Frequency response: 20 Hz to 20 kHz (±3 dB)
• Signal to noise ratio: 100 dB (A-weighted)
• Power supply range: 14 to 19 VDC
• Gain settings: 24.6 to 26.6 dB, 30.6 to 32.6 dB, 34.1 to 36.1 dB, and 36.6 to 38.6 dB
• Input impedance: 48K ohm minimum, 60K ohm typical
• Input sensitivity: 640 mV @ 25.6 dB, 320 mV @ 31.6 dB, 210 mV @ 35.1 dB, 160 mV @ 37.6 dB
• Dimensions (mm): 110.2 L x 68.6 W x 16 H



Sure Electronics 2x25W at 6 Ohm TDA7492 Class-D Audio Amplifier Board Only
  • BrandSure Electronics
  • ModelAA-AB32165
  • Part Number320-332
  • UPC844632099205
  • Product CategoryAudio Amplifier Boards & Modules
  • Unit of MeasureEA
  • Product Rating
    (11 Reviews)
  • Weight0.65 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

Sure Electronics 2x25W at 6 Ohm TDA7492 Class-D Audio Amplifier Board Only
Sure Electronics 2x25W at 6 Ohm TDA7492 Class-D Audio Amplifier Board Only is rated 4.6364 out of 5 by 11.
Rated 4 out of 5 by from Nice Amp....Wrong Dims.This amp is very similar to the now discontinued TPA3123 (320-302). As such this is a nice little amp with nice clarity and power. It does lack the connectivity of the TPA3123 ie. RCA ins etc.. My main complaint is that these amps are listed with the same dimensions even though this amp is larger in all respects. LxHxW are approximately: + 15mm, 6mm, 10mm respectively. Not a big deal unless you plan to replace that old model with this new one in an existing project box as I was.
Date published: 2014-06-12
Rated 3 out of 5 by from 25wpc Digital ampThis unit is a small very basic audio amp. I have never played with one of these before, and I wanted to do a small audio project for the kids...The directions are basically enough to get you going, and very lacking in details..as to what type, and rating of power supply to use. ( it is translated from Chinese, so don't expect much) For my project I used a 12vdc 8.3A switching PS. It seems to work fine. One thing (very) lacking is any form of rudimentary volume control, I'm using a (PE) bluetooth receiver that has its volume via the bluetooth commands... An accessory volume kit would make this unit "MUCH" better and more useful for other audio projects.. 3 stars
Date published: 2014-01-23
Rated 5 out of 5 by from Great little ampThis little amp board surprised me.  I play around a lot with home and pro audio equipment.  I built a self powered speaker box to play music from my phone.  Used this amp board, 19v laptop power supply, and speakers/crossovers from a JBl outdoor speaker box.  Built a box for it out of MDF and sounds great.  Putts out a lot of volume from a cell phone input.  Would be nice to be able to adjust your tone/EQ before the input, but over all very happy.  Sounds even better with Ipod that has EQ options.  Nice and small, easy to hook up.
Date published: 2013-12-31
Rated 5 out of 5 by from Perfect to embed in a cabinetLately, I have been doing a lot of 1970's era floor cabinet refurb jobs for friends... and their friends... and their friends.These amp boards are the ideal tool when I do the job. Here's what's getting people hooked:I take a well made cabinet, usually from the 1970s or 1980s. I gut the drivers and examine the crossovers. I usually end up replacing the crossovers and always replace the drivers.Enter the amp board. I install the amp board INSIDE the cabinet. Sometimes, I only use one channel and put a board in each cabinet and make an auxilary out terminal to add an additional speaker. Sometimes I wire the second channel to the second cabinet in a stereo setup.Then I put in a bluetooth receiver and feed it power; hook it to the board. Viola! These clean sounding, perfect little boards can be LOUD with the right speakers. And people LOVE having a set of retro looking, yet high tech, speaker cabinets to play music from their phone or tablet with.I highly suggest downloading the manual and printing yourself a copy for every amp board you buy. There are switches that can control volume and you'll learn a lot about this kind of amp, the different configurations for power, and possibly using the rotary encoder. You learn in general, by using the manual.My project isn't the only thing you can do with these amps. Use your imagination to make powerful, portable systems. Comb this site for enclosures and make a stand alone amp. You could use this for your extremely awesome 7.2 surround in an auxiliary position or for a different zone in your house. The limits to where these can go / be installed are endless! They are small and efficient.I often read reviews where people take point off for features. Well, this is a stripped down amp board. It's not going to have an EQ and seven inputs. That's not what it's for. I give it full marks in all categories because it is versatile, dependable, affordable and a ton of fun.One tip, get the right power supply. These things operate the way they are supposed to as long as you give them what they need.Now go have fun and invent something!
Date published: 2013-08-01
Rated 5 out of 5 by from Great Little AmpInstaled this amp in a diy portable boombox using 4 of the tang band 3inch buyout speakers and it sounds amazing.
Date published: 2013-02-28
Rated 5 out of 5 by from nice little ampNice little amp, small enough to be built into a cigar box. Want something mobile with enough power to push some bookshelf speakers and this delivers.
Date published: 2012-12-13
  • 2015-07-30T06:53CST
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Product Q&A

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Sure Electronics 2x25W at 6 Ohm TDA7492 Class-D Audio Amplifier Board Only

Will a 20.5 vdc power supply work with it?

Asked by: sdww
The manufacturer only recommends a power supply range of 14 to 19 VDC.
Answered by: GregT
Date published: 2015-05-26

How do I power 2 of these amps, 1 Parts Express AA-AB32131, and 1 Parts Express Bluetooth 4.0 Audio Receiver? I'm building a soundbar with 6 speakers (2 lows, 2 mids, 2 highs) and only want 1 power cord. Will also put in a on/off switch too.

Asked by: Collinjay
Please contact our tech support for more help with this question, tech@parts-express.com or 800-338-0531 x1.
Answered by: MattP
Date published: 2015-05-20

The title = "2 x 25W @ 4ohm." Under "specifications" = "25W @ 6ohms". The manual "25W @ 6ohms". However, the manual M# doesn't correspond with this M# and the product I received doesn't match either. Which is it? 4ohm or 6ohm. So much mis-information!

Asked by: tayglo
Just spoke with PE. There is no 2 x 25W @ 4ohm spec in the manual. Only 2x25W @ 6ohm spec. However, the gentlemen did say that 4ohm speakers would work and should result in more wattage tan listed. Hopefully, they will correct their page to reflect the correct information. 
Answered by: tayglo
Date published: 2015-04-28

According to the model # printed on mine it is: AA-AB32361V131. However, the manual states Model # AA-AB34165, and to make matters more confusing the description on this PE site says model # AA-AB32165. What gives with the three different model #'s?

Asked by: tayglo
Spoke with PE and they too were perplexed by the model number I received, AB32361, which is different from the listed model number AB32165. They assumed it may be the same unit but a newer model and are checking it out now and will get back with me at which time I will post their answer.  
Answered by: tayglo
Date published: 2015-04-28

Does this, or any similar amplifier module you sell, have provisions for some sort of "power up when signal is applied" control option? Either input signal sensing or maybe some sort of "apply [5-12V] here to power up" system. 

Asked by: slkcomm
Not an answer just a further observation: In the ornery of the PCB near the inputs there are two pairs of contact points labeled STBY/GND and MUTE/GND. They're not mentioned in the manual. Could this be what I need - an undocumented feature?
Answered by: slkcomm
Date published: 2015-07-09

Will this amp run off of a 12v lead acid battery? Thanks.

Asked by: akmille
Not recommended. Requires a DC power supply ranging from 14 to 19 VDC
Answered by: TomI
Date published: 2015-04-15
  • 2015-07-30T07:34CST
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