User Manual

RackPack: Premium Mic Pre
3
Important Security Information .................................... 4
Hook Up .............................................................. 6
Scope Of Delivery ................................................... 6
Introduction ......................................................... 7
Main Features . . . . . . . .... . . . . . . .... . . . . . . . .... . . . . . . . .... . . . . . . . .. 7
Rear Panel/Connections ............................................ 8
Wiring ........... . . . . . . . .... . . . . . . . ... . . . . . . . .... . . . . . . . .... . . . . . . . . 8
XLR Sockets, Lundahl Transformers, Channel Split . . . . . . . .... . . 9
Control Elements .................................................... 10
Mic Gain, About Leveling .... . . . . . . .... . . . . . . . .... . . . . . . . .... . . . . . 10
VU Meter, PPM, -10 dB ............ . . . . . . . .... . . . . . . . .... . . . . . . . ... 11
48 V Phantom Power Supply, Pad . . . . . .... . . . . . . . .... . . . . . . . .... . 12
Phase Reverse, High-Pass Filter, Signal LED, Overload LED . . . . 13
Technology .......................................................... 14
Triple Stage Preamp, Stage 1 – The Input Transformer ..... . . . . . 14
Stage 2 – The Discrete Differential Amplifier . . .... . . . . . . . ... . . . . 15
Stage 3 – The Instrumentation Amplifier,
Foil And Styroflex Capacitors, Outputs, Channel Split .... . . . . . . 16
Copy Master: Recall Settings ........................................ 17
Specifications ....................................................... 18
Measurements ...................................................... 19
CMRR, Frequency Range .... . . . . . . .... . . . . . . . .... . . . . . . . .... . . . . . 19
Block Diagram ...................................................... 20
Guarantee ........................................................... 21
Contents