Frequently Asked Questions

KHT set up instructions
Which amplifiers do you recommend?
What speaker cable should I use?
What is Bi-Wiring?
What Is Bi-Amping?
How do I connect a subwoofer to my system?
Can I upgrade my speakers?
How do I get my speakers serviced?
How long do you support old models?

How do I connect a subwoofer to my system?

Modern home theatre receivers have an LFE (low frequency effects) channel that provides only low frequency signals for an active subwoofer.

If your receiver/amplifier has a subwoofer output, use a commercially available subwoofer or RCA cable to connect this output to the low level input on your subwoofer. You only need to connect one input on the subwoofer as it is a Mono device.

Some early home theatre Receivers/Hi-Fi Amplifiers do not have a low level subwoofer output. The only means of output is from the main left and right speaker channels. The following models of subwoofers feature "High Level" inputs for this purpose, PSW4000 and PSW5000. Simply connect the subwoofer between your amplifier and speaker system using the "High Level" inputs from the amplifier and the "High level" outputs to your speakers, to enjoy extended low frequency sound for music and home theatre.

(Do not connect both "high level" & "low level" inputs to your amplifier, as damage may result).

Note: Other Subwoofer models (PSW1000.2, PSW2500, PSW3500) are supplied with a converter to connect speaker cable.

Can I upgrade my speakers?

If the upgrade means replacing the speakers completely then yes! However, if it's the internal components that you want to change then no!. Why? Well, when we design a loudspeaker all factors are taken into account, the vocals, bass delivery and overall sonics. This takes qualified engineers a long time to do. If you were to change any element of the speaker by replacing the factory fitted components, then the response could change dramatically, this could actually make the speakers sound worse.

How do I get my speakers serviced?

Please note that all service related issues should initially be taken up with the place of purchase. Contact details for authorised KEF retailers can be found on our dealer section of this site. Should you experience problems with a particular retailer then please contact the authorised distributor for your country (also available under the dealer section).

How long do you support old models?

It is our policy to maintain a healthy back-up of Reference Series parts for a period up to ten years. All other models are supported up to eight years from last date of production. In some cases, stocks of parts can become exhausted before our policy date, due to supplier problems, in these rare cases we will do our best to offer an alternative. For those speakers outside of the serviceable date, it is unlikely that we will be able to support with any spare parts, however it is worthwhile contacting your nearest local distributor who may have parts in stock that are no longer available from the factory.

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