I JUST PICKED UP A PAIR OF MARANTZ IMPERIAL 5 SPEAKERS FROM A GOOD WILL STORE IN MIAMI. I AM 67 YEARS OLD NOW AND HAVE BEEN A ELECTRONIC TECH MOST OF MY LIFE . I HAVE HAD MANY DIFFERENT SOUND SYSTEMS THOUGH THE YEARS AND THESE SPEAKERS SOUND BETTER THEN ANYTHING I HAVE EVER HEARD. I AM PLAYING THEM WITH A VERY OLD SONY STEREO AMP THE TA 1066 AND THE BASS IS OVERBERRING. I HAVE TO CUT BACK ON THE BASS ADJUSTMENT A BIT TO SAVE MY EAR DRUMS. THIS AMP CANT BE PUSHING ANY MORE THEN 20 WATTS PER CHANEL AND THE VOLUMM CONTROL IS AT 3 ON A SCALE TO 10. THESE MY BE A KEEPER. BY THE WAY I PAID $ 10.00 FOR THE PAIR. I WOULD RATE THEM AT 5 .