Amplifier module - YDA138 - CLASS D - 2x10W

Stereo Class-D amplifier module YDA138 -  2x10W @ 8ohm

• YAMAHA YDA138 based Class D-amp
• MAX POWER 2x10W @8ohm, 1x20W @ 4ohm
• Supply voltage 9-14VDC
• Recommended supply voltage: 12V, min 2A
• Sensitivity: 0.22V
• THD + noise: 0.7% @ 9W, 0,2% @ 1W (UralTone lab results)
• Volume potentiometer
• DC in: screw connector
• Speaker terminals: screw connectors
• Size: 70 x 50mm (+ potentiometer shafts)
• Design inspected and measured with audio analyzers and listening tests in our lab
  

Suitable power supply:
12V / 2A, 24W switched mode power supply - 2.1mm (center positive)

YDA138 is actually a pretty good amp chip. Sound quality is good enough for many applications, and the price is very good.

Please note: Class-D amp modules can easily be destroyed if the supply voltage is too high, supply voltage polarity is not correct, or speaker impedance is not right.

Please note 2: There are lots of different low-cost Class D boards available. Some are great, some decent, and many are not that good. Some do not even work at all. We have tried many different boards and preselected ones that have a good price to quality ratio. We have measured and listened to every design in our audio lab. We try to be as honest as possible and tell the truth about quality. We also publish modifications if we found a way to improve sound quality.