About 2 Trademarks found that are owned by Avantgarde Acoustic Lautsprecher Systeme Gmbh

The mark consists of a square with a straight line down from top to bottom down the middle, with a curved triangular shape on the left half and a semicircle in the right half.

computer hardware, namely, wireless network repeaters; Electrical amplifiers for use with musical instruments; Sound amplifiers;Audio amplifiers; Electronic amplifiers being electrical amplifiers for use with musical instruments; Electroacoustic amplifiers beingsound amplifiers; Stereo amplifying apparatus being audio amplifiers; Electric power amplifiers for use with musical instruments;Dual amplifier balancers; Digital amplifiers being audio amplifiers