CAT# MK-4001
$19.95 each
Velleman # K4001. Small amplifier constructed around a TDA2003 IC, capable of delivering 4 Watts RMS at 4 Ohms. Music power: 7 W @ 4 ohms. RMS output: 3.5 Watts @ 4 Ohms / 2 Watts @ 8 Ohms. Frequency response: 20 Hz to 20 KHz (-3dB). Overload and short-circuit protected. Operates on 15 Vdc @ 0.5Amps (8-18 Vdc). Dimensions: 2.2" x 1.4"

Note: Kits cannot be returned or exchanged once assembly has begun.
Average Customer Review:  (2 Reviews) Write A Review

Customer Comments

Average Customer Review:  (2 Reviews) Write A Review

A customer from Tn.
7 watt amplifier kit
Simple to build with great results! I use these as underwater communications amplifiers aboard small submarines in operation diving wrecks in the Great lakes.

A customer from Austin, TX
Great mp3 blaster
I'm actually driving three speakers. A 31/2 main speaker sealed in an insulated 32 oz plastic coffee cup, a small subwoofer box from a set of cheap computer speakers that died. It probably has a four inch speaker. I wired five small crossover coils in series, four of them were from item #LX-156. It won't rattle the walls but it sure fills in the sound. Then I'm also running a small tweeter. The sound is much cleaner and almost as loud as the Altec Lansing ACS-33 computer speakers I used to play my mp3's though. I use them 6 hours a day in a hot truck that is over 100 degrees. The circuit has never over heated. I did use a little of my own thermal grease on the heat sink. It calls for a 47K audio taper potentier which does not seem to be available here so be prepared to get one if you expect to have a volume control.
I am very please with the performance of this amp.