KEF Audio PSW2500 English Instructions, Fault Finding, Controls and sockets, Connections

5. ENGLISH INSTRUCTIONS

6 Controls and sockets

Model PSW2500 Rear Panel

1.Line in input sockets

2.High pass output sockets

3.Ground in / out

4.Level control

5.Music / cinema

6.Crossover Frequency control

7.Slope

8.Phase control

9. Mains indicator light Power ON

Power OFF

10.Auto/manual switch

11.‘ON/OFF’ switch (vacation switch)

12.	AC power input (230V	Euro SP 3333 AA)
	(230V	UK SP 3333 AC)
	(115V US SP 3333 AB)

7 Positioning

8 Adjusting the controls

A. Crossover Frequency Control

The frequency control changes the upper cut-off frequency of the subwoofer. Its effective range is from 15Hz to 140Hz at a rate of 12dB/24dB per octave. The frequency control should be adjusted to achieve the smoothest integration between the main/satellite speakers and the subwoofer.

Clockwise rotation will increase the cut-off frequency and anti-clockwise rotation will decrease the cut-off frequency.

1.Ideal Crossover - Flat Response.

2.Crossover point set too low - Causes Dip in combined response.

3.Crossover Point set too high - Causes hump in combined response.

As the sub-bass (low frequency) sound produced by the subwoofer is non-directional it can be positioned almost

anywhere in the room, although it should not be placed too close to the listener. If possible try the subwoofer in different positions to find the best place for a boom-free sound.

8 Connections

Front speakers full range - speakers capable of producing full

B. Phase Control

The phase control will normally be set at 0° but more output level can sometimes be achieved in the 180° position, particularly when the subwoofer is far away from the satellite speakers.

C. Volume Control

The volume control adjusts the output level of the subwoofer in relation to the satellite or AV speaker output level. Clockwise rotation to increase the output level or anti-clockwise to decrease the output level.

frequency range.

A.Line Level - connected to amplifier processor loop.

B.Line level inputs - connected to subwoofer output on amplifier by single (C1) or ‘Y’ (C2) cable.

Fault Finding

D. Auto/Manual Switch

It enables / disables the input to your subwoofer to be muted. Setting this switch to Auto position, the subwoofer will mute the input automatically if it is idled for about 45 minutes. It resumes to work instnataneously after a signal is applied. If Manual is set, the unit will never be muted even when idle.

E. Ground In/Out

Enhances compatibility. Used to break possible earth loops which cause audible hum.

F. Music/Cinema

This switch selects one of two characteristics: Music is selected to give deep, clean bass; Cinema is selected to give cinematic impact.

G. Slope

Used to adjust transition between speakers and subwoofer.

FAULT	REMEDY
Mains indicator light does not come on.	Check that the subwoofer is plugged into the mains supply and that any switches are on.
	Check any fuses (including the plug) or circuit breakers on the mains supply which may effect
	the power to the subwoofer.
	Contact your dealer for further advice.
If the mains indicator light still does not come on.	Ensure that all equipment is switched on.
If the mains indicator light is on but no sound	Check and adjust the level control.
comes from the subwoofer.		Check that the output sockets on the source equipment are correctly switched and
		adjusted to provide sufficient level to drive the subwoofer.
		Check that all connections between the subwoofer and the source equipment are
		correct and adjust as necessary.

If there is still no sound.

Contact your dealer for further advice.

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