Rupert Neve Portico 5032 - Mic Pre / EQ - Manual (Page 8)

5032 MIC PRE/EQUALIZER
7
LINE INPUT
The line input is a 10,000 ohms (bridging) floating and balanced transformer design that provides
uncompromising isolation and protection against ground currents and other unwanted interference.
This makes a significant contribution to the purity and sonic quality of the music signal.
Unlike traditional transformers, the frequency response and distortion are independent of the source
impedance of the preceding equipment.
Full low frequency distortion performance is maintained even with input levels higher than +20
dBu.
HPF A 12 dB/octave high pass filter providing continuously variable Low Frequency
attenuation between 20 Hz and 250 Hz. The high pass filter is a valuable aid in
any signal chain but particularly so in a microphone preamplifier. Signals
within this band can be attenuated, leaving higher frequencies unaffected.
Helps get rid of building rumble, air handling motor hum etc.
5032 HPF min, mid, max
-30
+2
-28
-26
-24
-22
-20
-18
-16
-14
-12
-10
-8
-6
-4
-2
-0
dBu
10 1k 20 50 100 200 500
Hz
RUPERT NEVE DESIGNS