LEFT and RIGHT INPUT Jacks: Plug your instruments into these Hi-Impedance audio input jacks. In
mono mode, either input can be recorded onto any of the 4 tracks. In Stereo Mode, the Left Input will record to
either Tracks 1 or 3, the Right Input will record to either Tracks 2 or 4. The Input Impedance presented at each of the
INPUT Jacks is 470 kOhms.
INPUT L and R Knobs: These knobs adjust the amplitude of the signal before it goes into the A/D Converter.
The L knob adjusts the signal level of the LEFT Input and the R knob adjusts the level of the RIGHT Input. The INPUT
knobs should be adjusted to the point where maximum level causes the CLIP LEDs to barely blink or not light up at
all. The trick to achieving the best quality digital audio is to record the hottest possible signal without clipping the
A/D converter
. Y
ou do not want to record a signal that is too lo
w in volume or a signal that clips very often (unless
that is the sound you are going for). When recording in mono, both the Left and Right Inputs are summed together
and recorded onto the active track. To minimize hiss when recording in mono mode, it is best to turn down the
unused Input knob.
CLIP L and R LEDs: These LEDs light up when the audio signal clips the A/D Converter. In other words, the
signal’s amplitude is greater than what the A/D Converter can properly handle. The L LED lights when the LEFT
Input clips, the R LE
D when the RIGHT Input clips.
AUX IN Jack: This stereo input is mixed with the stereo output of the D/A Converter in the analog domain and
is output through all three output jacks. You could use this input to connect a CD Player, iPod, Mixer, Drum Machine
or Sampler. The 2880 does not record audio from the AUX IN Jack. The Input Impedance presented at the AUX IN
Jack is 6.8 kOhms, so it is best suited for Line Inputs. You will need to use the output volume of your device to mix it
properly with the 2880 output.
LEFT and RIGHT OUTPUT Jacks: Y
our main output from the 2880. Plug these outputs into your amplifier,
A. Analog Control and I/O
A
C
B
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