Audio Receiver Why Is My Home Audio Receiver Volume So Low?

Why is my home audio receiver volume so low? - audio receiver

5 years, I have a Kenwood VR-5080 home audio receiver that is connected to two speakers are working properly and securely connected. Regardless of the registration of the radiated sound through the output from the speakers is very low. The volume range is 13 higher at 100 Only when the volume is set to 0 or higher has no sound comes out and is still very quiet (usually -25 is strong enough)? What is the problem?