Fitting Range xReceiver Hearing Instrument Coupling Options Standard (xS) 45/112 (2cc) Power (xP) 55/126 (2cc) SuperPower plus (xSP plus) 65/133 (2cc) UltraPower (xUP) 66/136 (2cc) Phonak RIC xReceiver and Coupling Guide Mild to moderately-severe hearing loss dB 0 10 20 30 40 50 60 70 80 90 100 110 250 500 1k 2k 4k 8k 125 dB 0 10 20 30 40 50 60 70 80 90 100 110 HL 125 250 500 1k 2k 4k 8k Mild to severe hearing loss Moderate to profound hearing loss dB 0 10 20 30 40 50 60 70 80 90 100 110 HL 125 250 500 1k 2k 4k 8k Phonak Audéo V 10 312 312T Phonak Naída V Open Dome Closed Dome Power Dome SlimTip Hard SlimTip Soft cShell (Hard or Soft) Open Dome Closed Dome Power Dome SlimTip Hard cShell (Hard or Soft) cShell (Hard only) dB 0 10 20 30 40 50 60 70 80 90 100 110 HL 125 250 500 1k 2k 4k 8k Moderate to severe hearing loss cShell (Hard only) RIC 13 Phonak Audéo V 10 312 312T Phonak Naída V RIC 13 Phonak Audéo V 312 312T 13 Phonak Naída V RIC