Issue 2 (LP) : 10 March 2005
kW Phono Preamplifier
Instructions for use
Page
7
of
7
kW Phono
PREAMPLIFIER
.
SPECIFICATIONS
.
Output
:
Voltage RMS, maximum
> 43 Volts
Impedance
32 Ohms
Frequency response deviation from RIAA
20Hz to 20kHz ±0
.
1dB
Input
:
Total harmonic dist noise,
< 0
.
012% (MM, 10 Volts output)
20Hz to 20kHz
Input sensitivity for 300mV RMS output
2
.
9mV Moving Magnet, 500µV Moving Coil
Input impedance
MC : Switched : 10 Ohms internal, or user adjustable by external
RCA-type loading plug. Without plug 47k Ohms.
Input capacitance 470pF.
MM : All switches up : 68k Ohms in parallel with 47pF,
Switch no. 1 down : 47k Ohms + 47pF,
Switch no. 2 down : extra 50pF added,
Switch no. 3 down : extra 100pF added,
Switch no. 4 down : extra 200pF added
Overload margin
42dB above rated input at 1kHz (MM)
Channel separation
> 64dB 20Hz to 20kHz
Channel balance error
< 0
.
5dB typical
Signal / noise ref. 1Volt RMS output
> 78dB Moving Magnet (“A”-weighted)
> 75dB Moving Coil (“A”-weighted)
Frequency response reference IEC, RIAA
-20.0
-15.0
-10.0
-5.0
0.0
5.0
10.0
15.0
20.0
20.0
31.5
50.0
80.0
125
200
315
500
1000 1600 2500 4000 6300 10000 16000
RIAA
PHONO
RIAA/IEC
PHONO RESPONSE
Frequency (Hz)
dB
- see graph . . . .
Input sockets :
2 phono Moving Magnet via RCA connector
2 phono Moving Coil via RCA connector
Output sockets :
2 RCA connectors for line level output
Power requirements :
115
/
230 Volts or 100 V AC 50
/
60Hz (factory preset)
25 watts maximum
Dimensions :
483mm, 19 inches wide
167mm, 6
.
6 inches high (including feet)
456mm, 18 inches deep (including buttons and rear terminals)
Weights
:
18
.
15Kg, 40 lbs unit only, unboxed
23Kg,
51 lbs in shipping carton
Standard accessories :
IEC mains lead - 10 Amp type
Moving coil pickup loading plugs, (2 each) of
100, 200, 500, 1K and 5K Ohms resistance
Musical Fidelity reserves the right to make improvements which
may result in specification or feature changes without notice
