They probably don’t show up on the Magnolia online inventiry. You will have to physically go visit their showrooms or design center. They are usually inside Best Buy stores since Magnolia is owned by Best Buy. Not all Best Buy stores will have Magnolia Audio Video or design center (real Magnolia where they have McIntosh, Rotel, Arcam, B&W 800 D series, those huge higher end Martin Logan electrostats panel speakers).
Some Best Buy stores will only have Magnolia theater room where they only have AV receivers from Denon, Marantz, Pioneer Elite, Integra, Yamaha, Sony. These Magnolia theater rooms would not have Rotel, Arcam or McIntosh. They only have Japanese AVRs, lower end B&W speakers (600 & 700 series), lower end Martin Logan speakers (mostly the Motion series & their smallest entry level electrostats eg ESL EM), Definitive Technology speakers.
So there are 2 types of Magnolia inside Best Buy and they would only have one or the other. You will have to go visit the Magnolia Audio Video or Magnolia design center where they have the Rotel, McIbtosh, Arcam as well as those Japanese AVRs.