If the user desired a Beta Hi-Fi model but lacked the funds at the time, he could purchase an "SL-HFRxx" and at a later date purchase the separate Hi-Fi Processor.
Jika pengguna diinginkan model Hi-Fi Beta tetapi kekurangan dana pada saat itu, ia bisa membeli "SL-HFRxx" dan di kemudian hari pembelian Prosesor Hi-Fi terpisah.