Converting HiRes Files..Question

Ok this is a Mac question. I use both XLD and sometimes Max to rip my music. Lately I've been buying more HiRes stuff from HDtracks in Flac. When I do I also make a 16/44 Alac version ( I do this because I have both a Sonos system and a PS Audio PWD/ Bridge, Sonos won't play HiRes ) currently when I download a Flac file I have to jump through some hoops and use DBPoweramp on a PC in the house to convert the HiRes Flac file to a Alac 16/44 file. I'd like to be able to use my Mac for this but I can't find any settings in either XLD or Max to do this. There are settings to convert to Alac and to convert the sample rate, but not the bit rate. It's super easy to do with DBpoweramp and if I have to I'll buy a copy of Windows and install it in a bootcamp partition but I'd prefer not to spend the $$ on a legitimate copy of Windows if I don't have to. Anyone have any ideas if XLD or Max will do what I want, or a program that will?