Symphony I/O MkII Pro Tools HD 32x32 SE or to add "Attitude" by

or to add "Attitude" by reducing the output and increasing the input

when the input signal has overcome the enhancement threshold

in this user guide the term IFB will always indicate this type of circuit

If a telco-provided disconnect signal (a momentary break in loop current) is detected the interface will automatically return to its idle (on-hook) state

Symphony I/O MkII Pro Tools HD 32x32 SE or to add "Attitude" byMeet Symphony I O Mk II Symphony I O Mk II is a multi channel audio interface featuring Apogee's flagship AD DA conversion, modular I O (up to 32 inputs and outputs), intuitive touchscreen display and optional world class microphone preamps. Designed to deliver professional sound quality for audio recording, mixing and mastering, Symphony I O Mk II is the ultimate music production centerpiece for any modern studio. With its option card flexibility,