6
Selection Chart for Acoustic Options
All BTE models covered in this Fitting Guide can either be fitted with a conventional earhook or with a
thin tube system. Traditional earhooks are used with a custom earmold.
The thin tube systems can be combined with a variety of different domes and customized earpieces.
All Compact Power Plus, Compact Power, Power, Micro and Nano BTEs can be fitted with the Spira
Flex and the miniFit thin tube system.
Please note that, for each BTE model, in the fitting software only one set of options (either Spira Flex
or miniFit) is given. However, the table below will help you make the appropriate selection when you
wish to use the other set of options.
Spira Flex
miniFit
Thin Tube 0.9 mm
Thin Tube 1.3 mm
Thin Tube 0.9 mm
Thin Tube 1.3 mm
Open Dome
(6, 8, 10 mm)
Open Dome
(6, 8, 10 mm)
Tulip Dome
n.a.
Dome, Large Vent
(8, 10, 12 mm)
Bass, Double Vent
(6, 8, 10, 12 mm)
Dome, Small Vent
(8, 10, 12 mm)
Bass, Single Vent
(6, 8, 10, 12 mm)
Power Dome
(6, 8, 10 mm)
Power Dome
(6, 8, 10, 12 mm)
Canal Mold
Micro Mold
Custom Tip
n.a.
n.a.
Lite Tip
Note:
Never attach a Spira Flex earpiece onto a miniFit thin tube and vice versa, as it could fall off in
the client’s ear canal.
