Active muffler

An exhaust gas system for an internal combustion engine, in particular a motor vehicle, having a line carrying exhaust gas, to which at least one active muffler is connected, said active muffler comprising:

• a multi-shell housing having a pot-shaped top shell and a pot-shaped bottom shell;
• a funnel-shaped sound conducting body which is inserted into the bottom shell and has a connection passing through the bottom shell and out of the housing;
• a loudspeaker, which is situated in the top shell and is attached to a flange section of the sound conducting body, flange section at a distance from the connection, such that a free inside cross section of the sound conducting body surrounded by the flange section is closed with an airtight seal;
• a bypass through which an interior space of the top shell is connected to an interior space of the bottom shell so they communicate.