Prospec Electronics recently released the Infinity by Harman INF-BC4 Pre-Amp Bluetooth Controller, which allows Bluetooth-enabled devices to stream music. This stand-alone audio device features a rotary encoder and large buttons for ease of use while moving.
The INF-BC4 controller is flush-mounted with no visible hardware and requires a 1-and-three-eighths-inch hole. The unit can be connected to the amplifier by plugging in its RCA outputs to the input off the amplifier. The brand of amplifier doesn’t matter.
An alternative to a traditional stereo receiver, the Infinity by Harman INF-BC4 Pre-Amp Bluetooth Controller from Prospec Electronics retails for $99.95.