4
2 Hookup
2.1
Front Panel Connections and Controls
StudioLive™ Software
Library Reference Manual
2
Hookup
2.1
Front Panel Connections and Controls
About XMAX Preamps and Combo Jacks. Your Quantum 2626 interface is
equipped with 8 PreSonus XMAX microphone preamplifiers for use with all types
of microphones. The XMAX design provides a Class A input buffer, followed by a
dual-servo gain stage. This arrangement results in ultra-low noise and wide gain
control, allowing you to boost signals without increasing noise. The Quantum
2626 provides two Mic/Inst inputs and six Mic/Line inputs on the front panel.
Each analog input on the Quantum 2626 interface features a combo jack. This
convenient connector accepts either a ¼-inch phone plug or an XLR plug.
Microphone/Instrument inputs. The ¼-inch TS connectors on Channels 1
and 2 are for use with instruments (guitar, bass, etc.). When an instrument
is plugged into the instrument input, the mic preamp is bypassed,
and the signal is routed to the instrument preamplifier stage.
Microphone/Line inputs. The ¼-inch TRS connectors on Channels 3 through
8 are for use with line-level sources (synths, keyboards, effects processors,
etc.). When a devilce is plugged into the Line input, the mic preamp is
bypassed, and the signal is routed to the instrument preamplifier stage.
Please note:
As with any audio input device, plugging in a microphone or an instrument,
or turning phantom power on or off will create a momentary spike in the audio output of
your Quantum 2626 interface. Because of this, we highly recommend that you turn down
the channel trim before changing connections or turning phantom power on or off. This
simple step will add years to life of your audio equipment.
Preamp Gain: Use this control to adjust the level of the
microphone preamps for each Channel.
•
48V: The Quantum 2626 interfaces provide 48V phantom power
in two banks of four microphone preamps. When 48V is active, the
blue LED at the top of that channel’s meters will illuminate.
Warning: Phantom power is only required for condenser microphones and
can severely damage unbalanced dynamic mics, especially ribbon mics.
Therefore, switch phantom power off for all channels where it is not required.
XLR connector wiring for phantom power:
Pin 1
= GND
Pin 2
= +48V
Pin 3
= +48V
Main. The Main knob can control any or all of the outputs on the rear panel of your
Quantum 2626 and has a range of -80 dB to 0 dB. In addition to level control, the
main outputs have the following controls:
