Hear Technologies PROHANA Analog Card for Hear Back Pro HubAllows HB PRO Hub to communicate with any professional analog audio equipment. Provides (8) balanced audio inputs using a standard Tascam DA 88 style pin out on a DB25 connector. A DB25 to 1 4 inch TRS break out cable is sold separately, unless the Analog input card is purchased as part of the Hear Back PRO Four Pack. Features: 10dB pad on each channel allows the user to select +8dB or +18dB maximum input sensitivity level Custom input sensitivities