Sound Performance Lab 2485 Manuel D’Utilisation

The preamplifier signals are fed to these electronically balanced 
outputs. Alternatively the GoldMike MK2 can be equipped with 
optionally available transformer outputs from Lundahl (see 
“Lundahl Transformers” on page 22). 

Since the XLR and 1/4 inch TRS connectors are wired in parallel, 
an unbalanced connection at one connector will cause unbal-
anced operation in its parallel connector, e.g. if a mono 1/4 inch 
plug is inserted into the 1/4 inch jack, the corresponding XLR 
socket will also operate unbalanced.

The GND Lift switch separates internal ground from chassis 
ground. The switch can be activated to eliminate ground loop 
humming which may occur if the GoldMike MK2 is connected to 
units with a different ground potential.

The  switch  should  normally  be  in  the  GND  position  to  main-
tain the shielding effect of the metal housing for internal 
GoldMike MK2 electronics.

The Instrument input jack is placed on the front panel for easy 
access. It should  be used to connect instruments  like E-bass, 
electric guitars, acoustic guitars with pick-ups etc.

The Instrument input features a 1 MOhm (one Mega Ohm) input 
impedance.

IMPORTANT:  As  long  as  an  instrument  is  plugged  into  front 
Instrument input, the rear panel Line Input is deactivated.