Playback Channels - Apogee Boom User Manual

● Choose -10dBV when connecting "semi-pro", hi-fi, or musical instrument gear with a nominal
-10dBV dBu output level to the XLR input.
4. Gain Control - Adjust the gain of the preamp, when Analog Level is set to Mic or Instrument. Gain
Control is hidden when Analog Level is set to +4dBu or -10 dBV line input.
● Mic or Instrument input - If the input level is too high even when Gain is set to 0 dB (for
example when recording loud sources like drums or active guitars/basses), click the PAD
button.
5. ECS FX On/Off - Toggle on/off the ECS FX plugins.
6. Show/Hide ECS FX window - Click to show/hide the ECS FX window.
7. Input Settings - Provides options for the various inputs:
● 48V - Enable 48 volt phantom power on the corresponding Analog In channel. Visible only
when Analog Level is set to Mic. Most condenser mics require 48 volt phantom power to
operate.
● Group - Link the Gain Controls for each Analog In channel. Visible only when Analog Level is
set to Mic or Instrument. Gain offsets that exist before grouping channels are preserved.
● Polarity Invert - Invert the polarity of the analog input signal. When a single sound source is
picked up with 2 transducers, inverting the polarity of one transducer results in a fuller sound.
For example, if a drum is captured with a mic on each drumhead, inverting the polarity of one
mic results in a fuller sound with more low end. The same principle applies when capturing an
electric instrument with a miked amp and a direct injection feed.

Playback Channels

8. Playback channels represent the playback signal from your audio software (DAW) outputs. Boom
offers two stereo Playback inputs, which can be used to set up various workflows:
● Send different monitor mixes to Boom's Speaker and Headphone outputs. In your DAW,
create a mix using the primary faders and route to Playback 1-2, then create an alternate mix
using pre-fader sends routed to Playback 3-4. Next, in Apogee Control 2, set Speaker source
to Playback 1-2 and Headphone source to Playback 3-4.
● Stream a mix of live and playback sources - set Assign to SW Inputs to Software Inputs 1-2,
route apps like Spotify and Skype to Playback 1-2 (in the OS audio settings) and route DAW
playback to Playback 3-4 (in the DAW output settings).
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Apogee Boom User's Guide