Fidelice 7566: Precision Phono Preamplifier
Thank you for purchasing the 7566 Fidelice Precision Phono Preamplifier. Everyone at Rupert Neve Designs hopes that you enjoy
using this tool as much as we have enjoyed designing and building it.
Front / Back Panel
MM
R
L
INPUT
SELECT
MM
MC
GND
MC
OUTPUT
POWER
R
L
R
L
24V DC
6 W 0.25 A
Rupert Neve Designs
Made in USA
Model 7566
ON
OFF
GND
Ground lug for
turntable ground
wire connection
MM L/R
Left and Right Moving
Magnet cartridge RCA
inputs
MC L/R
Left and Right Moving
Coil cartridge RCA inputs
Input Select
Selects between
Moving Magnet
and Moving Coil
RCA inputs
Output L/R
Left and Right RCA
Phono Pre outputs
Power
Turns the Phono Pre
ON or OFF.
DC POWER JACK
24VDC, 0.25A
Min (6 Watt).
Use with supplied
AC power adapter
for best performance
7566 Overview
The 7566 is a Phono preamplifier intended for Moving Magnet and Moving Coil cartridge signals. It features purpose-designed low-
noise discrete JFET input Class A amplifiers throughout the signal path, a passive RIAA filter with low-tolerance components and an
optional 18dB/octave Rumble Filter with a corner frequency at 11.4Hz.
RIAA
accuracy
< +/-0.15 dB typical from 20 Hz to 31.5 kHz
Frequency
Response
< -0.2 dB @ 10 Hz
< -1 dB @ 120 kHz
Stereo
Matching
< 0.15 dB typical from 10 Hz to 22 kHz
Power consumption
2.04 W (24V, 0.085A)
Maximum Output Level
17.6 dBV, 19.86 dBu, 7.62 Vrms
Moving Magnet (Z
SOURCE
= 20 Ω Unbalanced, BW: 22Hz - 22kHz)
Input Impedance:
47 k
Ω
, 110 pF / 220 pF
Gain:
40 dB @ 1 kHz
Noise:
-82 dBV
Equivalent Input Noise:
-122 dBV
Signal-to-Noise Ratio:
77 dB
Dynamic Range:
99.6 dB
Crosstalk
-88 dB @ 10 kHz
THD+N (Input: 5mV
RMS
@ 1 kHz)
0.017%
Moving Coil (Z
SOURCE
= 20 Ω Unbalanced, BW: 22Hz - 22kHz)
Input Impedance:
100 Ω, 220 pF
Gain:
60 dB @ 1 kHz
Noise:
-70 dBV
Equivalent Input Noise:
-130 dBV
Signal-to-Noise Ratio:
64 dB
Dynamic Range:
87.6 dB
Crosstalk
-85 dB @ 10 kHz
THD+N (Input: 500μV
RMS
@ 1 kHz)
0.08%
FIDELICE
Rupert Neve Designs
IN
47k 110pF
OUT
47k 220pF
POWER
RUMBLE FILTER
MM LOADING
Precision Phono Pre-Amplifier
POWER
Power LED that
illuminates green
when the unit is ON
Rumble Filter
Engages an 18 dB/octave
high-pass filter with a corner
frequency (-3 dB) at 11.4 Hz
MM Loading
Toggles between
47kΩ/110pF or 47kΩ/220pF
input capacitance applied to
the Moving Magnet Input
