Operation, Before Switching on, Starting

BEFORE SWITCHING ON . . . . .

Plug the accessory IEC mains lead into the rear panel socket, then the other end into a convenient wall outlet.

STARTING

Press the POWER switch button on the preamplifier front panel - the blue LED just above the button will light indicating that power is applied to the unit.

LEDs in the support feet will also light red for about six seconds, indicating that both left and right audio outputs are muted.

Muting is then disabled, and feet illumination then fades over approximately fifteen seconds to yellow, showing that your kW Phono is now ready for use.

After a period of about 35 minutes, the LED feet colour fades to blue, confirming that the pre-amplifier is fully warmed up.

PHONO MM / MC SWITCHING

Your kW Phono preamplifier has independent circuits for moving magnet (MM) or moving coil (MC) phono pickups.

To obtain the preferred input, press the MM / MC selector button on the front panel. A corresponding blue indicator on the front panel will light to confirm your selection. Each press of the button changes over input between the two options.

CAUTION - only operate this function at low volume setting.

OPERATION

RIAA / IEC COMPENSATION

As a further refinement, the phono pickup characteristic can be adjusted to suit either RIAA or IEC compensation curves.

Historically, the original RIAA curve defined the low audio frequency limit as 20Hz.

The later IEC standard specifies frequency response down to 10Hz to restrict possible turntable rumble, or the effect of a warped record.

Each time the RIAA / IEC button on the front panel is pressed, the phono pickup stage is switched alternately between the two options.

A corresponding blue indicator on the front panel lights up to confirm your choice.

Issue 1 : January 2005	kW Phono Pre-Amplifier	Instructions for use	Page 6 of 7

kW 750 specifications

The Musical Fidelity kW 750 is a flagship stereo power amplifier that embodies the pinnacle of high-fidelity audio technology. Designed for audiophiles seeking exceptional sound quality and performance, the kW 750 is a powerful and sophisticated addition to any high-end audio setup. This amplifier is renowned for its ability to drive even the most demanding speakers, delivering a stunning audio experience that highlights the nuances and details in music.

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