WC
$tax_query = array( 'relation' => 'OR', array( 'taxonomy' => 'pa_audio-inputs', 'terms' => array( '323', '454' ), ), array( 'taxonomy' => 'tax2', 'terms' => array( '81274', '12893' ), ), );
$tax_query = array( 'relation' => 'OR', array( 'taxonomy' => 'pa_audio-inputs', 'terms' => array( '323', '454' ), ), array( 'taxonomy' => 'tax2', 'terms' => array( '81274', '12893' ), ), );