Abstract: The present disclosure is directed to inventive methods and apparatus for a variable flux speaker subassembly for a loudspeaker. The variable flux speaker subassembly may contain at least one repositionable structure that is repositionable from at least a first position to a second position. The magnetic flux through a voice coil structure of the speaker subassembly is altered when the repositionable structure is moved from the first position to the second position.

Abstract: The present disclosure is directed to inventive methods and apparatus for a variable flux speaker subassembly for a loudspeaker. The variable flux speaker subassembly may contain at least one repositionable structure that is repositionable from at least a first position to a second position. The magnetic flux through a voice coil structure of the speaker subassembly is altered when the repositionable structure is moved from the first position to the second position.

Abstract: The present invention is directed to a structural coupler having a cross member support tube and an intersecting support tube connected to secure a cross member to a support member to facilitate structural frame assembly. The cross member support tube and the intersecting support tube are connected such that the use of a weld in the construction of the structural coupler is obviated. The structural coupler is formed from a single piece of metal to provide strength and reliability to the point of coupling between the cross member support tube and the intersecting support tube. The structural coupler includes first and second hem couplings for securing the configuration of the structural coupler. The cross member support tube forms a rectangular channel while the intersecting support tube forms a circular channel. A method of manufacturing the structural coupler is provided.

Abstract: A lightweight safe having an unique door mechanism is disclosed. The lightweight safe has a front opening with a recessed door frame to accommodate a recessed door having dead-bolts which are positioned behind one edge of the door frame when the door is in a closed position and movable locking bolts which may be locked behind an opposed edge of the door frame when the door is in a locked condition. The opening mechanism involves the use of a locking shaft having a pair of roll pins which interact with a handle lever to provide a smooth acting opening mechanism and to provide shear means in the event the handle of the safe is forced when the safe is in a locked condition.