6941 is available for 4200 while for 121E the shopkeeper says that that one is old and new one used is for 4500 (without n0b for volume)
Should I just change the speakers for now and use the current tape player with some usb device installed? what if the current player damages the speakers? I asked the shop keeper and he said the speakers will work fine with this player. Its a normal tape player and nothing written on it.