KW550
AMPLIFIER SPECIFICATIONS
Issue 1: August 2006
Page 13
of
14
Output:
Voltage, RMS
70 Volts 20Hz to 20 kHz
Voltage,
Peak-to-peak
201
Volts
Power
630 Watts per channel into 8 Ohms (28dBW),
910
Watts
per
channel
into
4
Ohms
Current
peak-to-peak
200
Amps
Damping
factor
200
Output
devices
per
channel
12
Pre-out
impedance
50
Ohms
Line inputs:
Harmonic distortion at 1 kHz
0.005%
THD + noise, 20Hz to 20 kHz
< 0
.
01% typical
Signal / noise ratio
> 99dB ‘A’-weighted
Input sensitivity for 630 Watts
450mV
Input
impedance
220k
Ohms
Overload margin
37dB
Channel
separation
>
75dB
typical
Frequency response
20Hz to 20 kHz, +0, -0
.
2dB
20Hz to 60kHz +0, -1.4 dB
Phono input:
RIAA/IEC combined response
-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
Signal / noise ratio
> 96dB ‘A’-weighted
Input
sensitivity
3.0mV
(MM)
0.4mV (MC)
Input
impedance
47k
Ohms
(MM
and
MC)
Overload
margin
24dB
(MM
and
MC)
Connections:
Line level inputs:
5 pairs line level RCA connectors,
1 front panel 3.5mm jack socket (sharing AUX 1 input)
1
pair
phono
(MM/MC)
RCA
connectors,
Line level outputs:
1 pair RCA [preamp] controlled by the volume,
1 pair RCA [tape record] fixed line level output.
Speaker
outputs:
2
pairs
4mm
banana
plug/binding
posts
per
channel.
Power requirement:
100 / 115 / 230Volts AC 50 / 60Hz (factory pre-set),
1950
Watts
maximum
into
8
Ohms,
120
Watts
idle
Standard accessories:
IEC type mains lead (16-Amp type),
Power supply lead, main (two) 0.7M long, + (two) 1.2M long
Power supply lead, for pre-amplifier (one) 0.7M long + (one) 1.2M long
Remote control (KW, universal type),
2
batteries
size
LR03
or
AAA,
manganese
alkaline
type
Main
unit
Power
supply
Dimensions:
485 mm, 19.1 inches wide
365mm, 14.4 inches wide
170 mm, 6.7 inches high inc. feet
170mm, 6.7 inches inc. feet
470 mm, 18.5 inches deep inc. terminals 440mm, 18.5 inches inc. terminals
Weight
23 kg,
51lbs unboxed
32kg,
70lbs unboxed
28kg,
62lbs in shipping carton
35kg,
77lbs in shipping carton
Musical Fidelity reserves the right to make improvements which may
result in specification or feature changes without notice.
