P R E - A M P L I F I E R

Overview and specifications 

SMD miniature technology and the shortest signal paths ensure optimized high frequency properties. Ground wires run in a star-type towards one central point. The design is capacitively and inductively optimized.

The digital control is physically and electrically separated. An encapsulated 50 VA toroid core transformer and high-current capacitors with a capacity of 30,000 uF provide the supply voltage. These voltages are smoothed by two fast regulators. The digital section has its own power supply.
All operational amplifiers are discrete and optimized. The voltages for the input and output stage are additionally smoothed by two discrete and ultra-fast regulators. The driver stage operates distortion-free in class A/B mode. Gold-coated precision relays switch the input signal and ground. Volume and balance are changed via precision resistor networks.
A microprocessor controls and regulates the whole system. A two-row display informs about the system state. The inputs are nameable, their input sensitivity can be modified for different signal source levels.
Six signal sources, two power amplifiers and two recorders can be connected. Furthermore a high-quality monitor loop for an additional recorder, decoder etc. is present. Other devices can remotely be activated via Audionet link.

The PRE I G3 can be equipped with the intelligent remote commander SRC-7000, a phono module for MM- and MC-systems, and an external power supply, the EPS.

function

microprocessor-controlled preamplifier

frequency response

0 – 3.000.000 Hz (-3 dB), DC-coupled
2 – 3.000.000 Hz (-3 dB), AC-coupled, DC-servo 1. order

THD+N

>108 dB ( 20 Hz to 20 kHz ) Vin = 5 VRMS

SNR

> 120 dB related to Vin,max

slew rate

10 V/μsec

channel separation

between channels            > 100 dB @ 20 kHz
between inputs                > 108 dB @ 20 kHz

inputs

5 pair RCA line, gold plated
1 pair XLR symmetric, gold plated
1 pair RCA line monitor, gold plated
1 Audionet Link, optical
1 EPS connector

input impedance

Line-input       82 kOhm
XLR-input       15 kOhm

input voltage

max. 5 Vrms

outputs

2 pair RCA line, gold plated
1 pair XLR symmetric, gold plated
1 pair RCA rec. Out, gold plated
1 pair RCA monitor, gold plated
1 Audionet Link, optical
1 Screw, gold-plated, for improved earth connection
1 Trigger-output, 12 Volt DC, 3.5mm Mono-connector

output impedance

RCA line- und XLR-out        22 Ohm reell
headphones out                 47 Ohm reel

output voltage

RCA line outpu      max.   8  VRMS
XLR output            max. 16  VRMS
headphones out    max.   8  VRMS (max. gain = 6 dB)

mains

230 V, 50…60 Hz

power consumption

4 W stand by, max. 30 W

size

Breite    430 mm
Höhe       72 mm
Tiefe      310 mm

weight

6 kg

finish

Frontplate: aluminum, black anodized, white printing
or aluminum nature, anodized, black printing
Display: Red or Blue
Top cover: aluminum, black microlized
Chassis: sheet-steel, black varnished

specials

 lots of ..

options

 intelligent remote commander SRC-7000
phono module for MM / MC .
external precision voltage supply EPS