English Instructions, Fault Finding | KEF Audio PSW 2500 guide

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

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

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 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.

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.

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.

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 Finding

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.

PSW 2500 specifications

The KEF Audio PSW 2500 is a powerful subwoofer that exemplifies the brand's commitment to high-fidelity sound and innovative engineering. Designed primarily for home theater use, the PSW 2500 provides deep, rich bass that enhances the overall audio experience, making it an excellent addition for music lovers and movie enthusiasts alike.

One of the standout features of the PSW 2500 is its 12-inch front-firing driver, which is engineered to deliver dynamic bass response. The use of a highly efficient, proprietary driver design ensures that low frequencies are produced with clarity and precision. Coupled with a built-in 500-watt amplifier, the subwoofer can handle demanding soundtracks and high-volume playback without distortion.

In terms of technology, the PSW 2500 incorporates KEF’s Uni-Core technology, which creates a compact and optimized design for the driver. This innovative technology allows for a reduction in cabinet size while still providing impressive bass performance. By minimizing the subwoofer's footprint, the PSW 2500 can be easily integrated into various home setups without sacrificing audio quality.

The enclosure of the PSW 2500 is carefully crafted from dense MDF to reduce vibration and resonance, ensuring that the sound produced remains pure and uncolored. The subwoofer features a stylish finish that complements any home decor, providing both aesthetic appeal and functional excellence.

The PSW 2500 is also equipped with a range of connectivity options, making it versatile for different audio setups. Equipped with line-level inputs, speaker-level inputs, and multiple crossover settings, it allows seamless integration with a variety of audio systems. The subwoofer also features adjustable phase and volume controls, enabling users to fine-tune their audio experience according to personal preferences and room acoustics.

With its powerful performance, advanced technologies, and versatile connectivity, the KEF Audio PSW 2500 stands out in the crowded subwoofer market. It offers a remarkable combination of style and substance, making it a top choice for anyone looking to elevate their home audio experience. Whether bringing the thunder to an action movie or the depth to a favorite music track, the PSW 2500 delivers an immersive listening experience that will satisfy even the most discerning audiophiles.