Used speakers

Outstanding Speakers in the used range for a Rock'n'Roll bass lover could be DCM KX series which can be found for very little money on the used market (sub $200) for 12" three ways, or if you can find them' the Infinity SM 120's built in the late 80's for $250-$300 range they are very efficent and require little power. Although they may not have the finesse of the more expensive AR, either will get very loud. If you are REALLY lucky, you might be abe to score a used pair of Vanderstteen 1B's for about $300 for an older set. They may sound a little forward on the halfler amplifier but definately will work for a long term investment if your nephews music tastes evolve into different kinds of music over time. P.S. Don't blow them up because the state of the art VIFA tweeter and cast woofer are not cheap to replace. Even the 10-year old unupdated units will still blow away brand new $600 speakers sold at Best Buy, if played in a small to medium sized room with decent electronics,(which you have). Good luck in your search for your tunes!