kW 550 Integrated Amplifier
The kW550 is really gratifying to use. It has beautiful visuals and great build quality. Most important the sound is riveting. Huge soundstage vistas spread out between the loudspeakers, limitless dynamic range and sweet mutual tonal balance complete the picture. The kW550 can stand comparison with anything at any price from anywhere. It’s that good.
Don’t be fooled by the kW550’s competitive price it’s technical and sonic performance are right up there at the pinnacle of hi-fi reproduction. If you want value for your hard earned cash as a opposed to a very expensive brand name trophy then the kW550 is worthy of close examination.
| Separate integrated PSU. |
No transformer generated magnetic interference with signal path. |
| Completely separate tube preamp and two monobloc power amps in one package. |
Super quality components importantly sharing one close coupled common ground system. |
| Less interconnects. |
Saves a lot of dosh and improves the sound. |
| Very high power and current delivery. |
Effortless clean sound. Full range dynamics with no clipping. Brings your loudspeakers to life. |
| High quality 6SL7 tube preamp. |
Exquisite delicate beautiful sound. |
| Very high input overload margin (12 volts). |
Full unlimited dynamic range. |
| High quality MM/MC phono stage. |
Great sounds from your treasured vinyl collection. |
Output: |
|
Voltage, RMS |
70 Volts 20Hz to 20kHz |
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 1kHz |
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 60 kHz, +0, -1.4dB
|
Phono input: |
|
RIAA/IEC combined response |
See chart below |
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 requirements |
100 / 115 / 230Volts AC50 / 60Hz (factory pre-set),
1950 Watts maximum into 8 Ohms, 120 Watts idle |
| |
|
Dimensions: |
|
Main Unit |
485mm, 19.1 inches wide
170mm, 6.7 inches high inc. feet
470mm, 18.5 inches deep inc. terminals |
Power supply |
365mm, 14.4 inches wide
170mm, 6.7 inches inc. feet
440mm, 18.5 inches inc. terminals
|
Weight: |
|
Main Unit |
23kg, 51lbs unboxed
28kg, 62lbs in shipping carton |
Power supply |
32kg, 70lbs unboxed
35kg, 77lbs in shipping carton
|
Standard accessories: |
|
IEC 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 |
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