What a joke about not purchasing speakers with sensitivity ratings lower than 90 or lower than an 8 ohm load. In this 1 sentence, you pretty much eliminated every "best" speaker on the market. Most of these "best" speakers have sensitivity ratings in the middle to upper 80's and some go down below 4 ohms (some in the 2 ohm range). All this means, if you buy the best speaker, you also need to buy a better/best amp to drive them. If you want something cheap, then it really doesn't matter much.