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Troubleshooting/QA
1: Power Supply Indicator is not illuminated.
• Check to see that the AC power cord is securely connected to the
power supply and to an AC power outlet.
• Check that the AC power outlet is supplying power, make sure the
power LED on the power supply stay on.
• If you make sure the power supply is defective, please contact us
for exchange.
2: What type of speakers work best with TEA7498E
Amplifier?
• Fosi Audio TDA7498E works great with any 2-8Ω passive
speakers.
Note: please know that the TDA7498E amplifier is for passive
speakers, not for powered speakers and subwoofer.
3: Why does the TDA7498E make serious noise when used
together with a radio?
• Common feature of Class D power amplifiers is that they can
cause serious noise when used with a radio, so we do not
recommend using the TDA7498E with a radio or too close to it.
4: Can I connect a turntable to TDA7498E amp, why is the
volume is extremely low?
• You can try our BOX X1, BOX X2 or BOX X3 phono preamp.
5: Why does the sound is cracking or make a lot of
electric noise?
• When you hand attached with the volume knob or the amplifier
case, will cause some buzzing sound, it's normal because the
amplifier case and volume knob are made of aluminum. It's
normal, once your hand move from the amplifier,
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