Volume seems too low


I have an integrated amp and have to turn the volume up over 2/3 to get it even close to loud. I have the high/low gain switch set to high. Is this normal or, more likely, what have I hooked up wrong?
edwardteach
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Specs...Speaker sensitivity is only 84dB. Required Amplifier Power is 30-100W. Your amp is only putting out 50w in Pentode mode. How big is your room and how loud do you play?
Fairly big room 18x40. Usually not real loud, but I do crank it from time to time. I just found it curious I have to dial it up so much to get semi-loud.