Switching Units - Q. Can I use the switch in reverse e.g. as an amplifier switcher?

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• Switching Units - Q. What are the benefits of series vs parallel wiring?

  Answer: The switches which have more than two sets of speakers use a combination of series and parallel switching to achieve the minimum impedance of 4 Ω no matter what combination of speakers are switched on. For the two way switches, there is a ...

• Switching Units - Q. All QED switches load on 4 Ω using 8 Ω speakers. What happens if my speakers are 6 Ω?

  Answer: 1. Check your amp; if it can cope with a 3 Ω load or less (and some can), then your setup will be okay. The rule is, you must always use speakers with double the impedance of the amplifier's minimum. 2. If you only have two pairs of speakers, ...

• Switching Units - Q. What is the technical definition of 'transmatch'?

  Answer: For the 5 way speaker switch we don't use parallel or series switching, using use transformer coupling instead. Again you have to use 8 Ω speakers minimum if your amp is a 4 Ω minimum amp. The impedance is then matched by the transformer, so ...

• Switching Units - Q. What are the differences between the speaker switches in terms of impedance?

  Answer: All of our speaker switches are configured so that if you use 8 Ω speakers, the minimum impedance seen by the amplifier will be 4 Ω.