inputs.text: quality sound subwoofers - eclipse developed best car audio equipment 1990s early 2000s time car stereo installation technician salesperson best stuff installed sold unfortunately not quite power handling capability old 8810 series subs perform great even small enclosures eclipse concentrated sound quality lived high standards sw104 dvcs one note sure know voice coil wiring configurations ohm load supplying amplifier capable supplying safely expensive mistakes everything easy look internet