Help, is 15 watts p/c enough for a small room

Having owned this receiver I'd say it is under-powered when I used Energy Xl-16 spks. I'd personally would pass at that price. I once sold this receiver at a stereo shop I worked at a long time ago. Compared to a Harmon Kardon 330i, the difference in power was night and day. The HK was 20w per channel if I remember correctly. I'd look at something else. Prices are really going up on Ebay and shipping is expensive. Hard to find the deals. But they are still out there, just not as plentiful. 

I used to have that same receiver along with a Technics turntable and some cheap off brand speakers:)It sounded fine at reasonable volumes in larger rooms than yours.Like others have mentioned,pair it with efficient speakers.

Get that new NAD 3020 with the Class D output stage. Avoid that ancient Pioneer!

Wow thank you everyone! It's just for background music while I work or to test the condition of LP's. Not my main listening room. Main room is about 30 x 33 ,w/  Pioneer SX-980 & Klipsch Forte ii's, not looking for anything like that at all. Main room has a lot of glass & tile so the Klipsch are a little bright sometimes, that's another of many problems. 
I have circa 1968 GE bookshelf speakers for the den, not sure if they work but can get some decent Klipsch on ebay for +/- $100 I think. I will look at the Harmon Kardon 330i and Klipsch power gate, also found a cleaned up, working Pioneer sx-680 on e-bay for $80, might do that, shipping is $55. Thanks again everyone for the help !