Velleman 7W Mono Audio Amplifier Kit

Velleman 7W Mono Audio Amplifier Kit

Brand:| Model: K4001
Overview
This small amplifier is constructed around the IC, capable of delivering 7 watts music power into 4 ohms - 4 watts RMS 4 ohm load and 2 watts RMS 8 ohms. The IC is thermally and short circuit protected.
Part # 
320-214
Weight: 0.4092 lbs.  
IN STOCK
Your Price
$18.00
Part # 320-214
Qty:  EA
Available Payment Methods

Product Details

Velleman 7W Mono Audio Amplifier Kit

This small amplifier is constructed around the IC, capable of delivering 7 watts music power into 4 ohms - 4 watts RMS 4 ohm load and 2 watts RMS 8 ohms. The IC is thermally and short circuit protected.

Specifications: • THD: 0.05% - 1W 1 kHz • Frequency response: 20-20,000 Hz • Requires 15 VDC/500mA • Power supply - sold separately • Net weight: 1/4 lb.



Product Specifications
  • Project Kit TypeUnassembled Amplifiers
Velleman 7W Mono Audio Amplifier Kit
  • BrandVelleman
  • ModelK4001
  • Part Number320-214
  • UPC5410329040017
  • Product CategoryElectronic Project Kits
  • Unit of MeasureEA
  • Product Rating
    (6 Reviews)
  • Weight0.4092 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

Velleman 7W Mono Audio Amplifier Kit
Velleman 7W Mono Audio Amplifier Kit is rated 4.6667 out of 5 by 6.
Rated 5 out of 5 by from Great will amplifierThis is a single stage block gain amplifier that will take any acceptable line level input to a full speaker level. The module builds in 30 min and you can use it to replace defective sections of electronic amps-broadcast consoles or anything else OR you can use it to make your own circuits. In my case I built my granddaughter her own Karaoke machine for Christmas
Date published: 2014-12-27
Rated 5 out of 5 by from Velleman 7W Mono Audio Amplifier KitThis kit was extremely easy to build, It took about 25 minutes to build, the printed circuit was clearly marked and the instruction were easy to understand. The amplifier worked without any problems and the amplification exceeded my expectations. I would recommend this kit to anyone who needs a small mono amplifier.
Date published: 2012-08-01
Rated 4 out of 5 by from Love it.I have 10 of these. They were easy to quickly assemble. All of them worked perfectly the first time. I find that they work on a wide range of input voltages. For example, they work just great with two nine volt batteries in series. These amps are ideal for converting small bookshelf speakers to battery-powered self-amplified units.
Date published: 2009-12-30
Rated 5 out of 5 by from Handy little amplifer - easy to assembleI bought this unit to boost the sound coming from a notebook computer. The particular application involved using the notebook running GPS software to provide turn by turn driving instructions. Neither the internal speakers, nor the inexpensive computer desktop speakers would produce enough volume to make the instructions clearly audible above the noise made by the vehicle (a diesel powered lift bus). This amplifier accepted input from the headphone jack on the notebook and powered a 4" speaker at sufficient volume to do the job.
Date published: 2008-10-28
Rated 5 out of 5 by from Low Cost, High QualityWonderful kit. Easy to assemble works great. If you need to amplify a speaker for CB, Ham, or hobby use this is for you. Great price Great Kit Flawless operation.
Date published: 2008-05-29
Rated 4 out of 5 by from Gift for my 14 year old sonThis item was a gift for my 14 year old son, he built it, it works great!
Date published: 2008-04-29
  • 2015-04-18T06:22CST
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Product Q&A

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Velleman 7W Mono Audio Amplifier Kit

will this mono amp run okay on 9 volts DC instead of 12?

Asked by: TTracer
No, this amp requires 15 VDC to work properly.
Answered by: MattP
Date published: 2015-02-12

How much of a wattage increase would I get if I....

How much of a wattage increase would I get if I wire this into the PA (public address) output of my CB radio which outputs at 7w? Would it just be 7+7=14w or is it not that simple? The PA is a fun feature but is a bit too quite and I want to make it louder, without exceeding my speaker wattage rating or at least knowing where this amp puts me
Asked by: MIke Number 2
Hello Mike,,,its not a good idea nor practiceto wire an amp to amp, especially large powerful amplifiers!.Doing this could be dangerous creating a fire and/or severely damaging equipment.Amplified sound is created using two stages within a circuit,first is the low voltage "preamp/ input stage",second is the higher "output stage" .The first stage is to pick-up / boost microphones, CD players, iPod, turntable, DVD players signals that are to weak for driving a amplifier with only mil-volts (millionth of a volt), higher output stages require volts. (0.775 to 24+)Every preamp and amplifier have their own hi and low / in and out stages!!...Feeding a hi to a low will result only in what the last unit can deliver in watts.They do not add..I recommend replacing your current with something around 25-40 watts.Loudness increases by +3 db by doubling power.EX: watt power 1,2,4,8,16,32Best of Luck, S
Answered by: Sal_J
Date published: 2012-12-14
  • 2015-04-17T10:08CST
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