Musical Fidelity KW 500 Specifications download pdf (Page 7)

Issue 1 : January 2005

kW Phono Pre-Amplifier Instructions for use Page 7 of

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 distortion + 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 or 100 Ohms in parallel with 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

- 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

Musical Fidelity reserves the right to make improvements which

may result in specification or feature changes without notice

-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)

1 2 3 4 5 6 7

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Musical Fidelity KW 500 Specifications Page 7

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