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RF Zapperators with Cut & Stripped ends

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overview
Zapperators use a network of specialised, very high specification components to stably absorb RF and further reduce noise in the amplifier / speaker interface. We've found that they augment the effect of Kimber speaker cable (Russ uses them on his speakers in his main system) and in our opinion they are also an essential upgrade if you're using a speaker cable from another manufacturer!

Using your Zapperators

Zapperators fit to the binding posts of your speakers and are fitted with a choice of 'piggy-back' bananas - to allow you to continue using existing speaker cables fitted with bananas - 8mm and 6mm spades or simply 'cut and stripped'.

What are Zapperators?

Zapperators are a new device based on a Zobel-type network for reducing high level RF interference at the point of speaker cable termination. They can be fitted at either the speaker or amp end of the cable.

And in plain English?!

OK, so to put it more practically we can look at it like this:

The point at which a speaker cable terminates into the speaker – or from the amp – is particularly vulnerable to interference, and the consequent noise this introduces into the audio signal. We believe that the use of Kimber speaker cable already goes a long way to rejecting this because of its unique woven design, but this end point could still be made better. This is what Zapperators are designed to do.

Not surprisingly, any product designed to address this problem had to take into account a number of considerations, not least that the new device did not introduce any other problems that could potentially negate any positive effects. This in itself was a fair task! Take the issue of placement, for example.

By their very nature, Zapperators have to be placed right next to the speaker so they are going to have to cope with high levels of bass vibration from the cabinet – many times higher than you would experience sitting at your listening position. Many high quality RF parts are microphonic, so using these would be akin to directly injecting distortion into the audio path, defeating the object. So one of the key points in the design of the Zapperators was the very selective use of high quality components.

Then there's the design itself. After many hours of research and testing, designer Ben Duncan adapted the original design of a Zobel network to work more efficiently in this specific application. The result was the speaker Zapperator, which works by literally burning off RF interference, converting it to heat and ensuring that once treated, it cannot return.





Hi-Fi Critic magazine had the following to say when they reviewed them in 2009:

"Frankly I was not expecting much, if anything at all, but – Ouch! – there was a difference and it was not small… A reduction in noise floor, treble grain and sibilance increased fine detail resolution and texture, and imaging was more natural with better distant perspectives. The sound was calmer, flowed better and with slightly better subjective timing and lower fatigue. I could hardly have been more surprised".
Martin Colloms



Where should I use them?

The majority of users find that fitting the Zapperators at the speaker end of a cable produces the most effective results. However, there has been a significant minority of customers reporting better performance from placing them at the amp end, so we would suggest trying both to see which works best with your system.

In the same vein, most users who have fitted Zapperators at both amp and speaker ends have experienced another step up in performance – and some have used multiple units at each end with even better results!

How do I fit them?

Zapperators are available in three terminations:

  • Piggy-back bananas – simply plug the Zapperators into the binding posts and your cable into the Zapperators bananas
  • Spades – fit the Zapperators into the spade connections on your binding posts and the speaker cable into the banana sockets
  • Cut and stripped – if your binding posts have a hole to take bare wire, you can fit the Zapperators into here and the speaker cables into the banana sockets, as with the configuration for spades.

    Which is best?

    Most people go for bananas as this is by far the most convenient option. This does add another connection into the audio signal path, but the advantages in audio performance gained by using the Zapperators far outweighs this issue. However, if this is a concern for you and you really want the ultimate performance from your system, it may be a better option to choose spades or bare wire so your speaker cable is plugged in directly to the binding posts.
  • white paper
    Want to know more about the technology in our Zapperators?

    Download the white paper here written by their designer, Ben Duncan.
    Customer Reviews
    Overall product rating 5 / 5
    5 / 5

    reviewed by Gordon Cameron
    03 Sep 2019
    Yes, I recommend this product.
    "Exceeds Expectations"
    Aside from a plug-in mains zapperator, these speaker zapperators are the first I have installed. The difference they have made is barely credible. The overall presentation is improved, vocals are clearer, the different instruments are better separated. The improvement when listening to complex passages is quite dramatic and is telling me that there is nothing wrong with my ageing amplification. Equally, when all that is going on is Ella Fitzgerald singing and somebody playing a piano that is all that can be heard, the voice and the piano, the zapperators bring out the silences too. Fantastic product.
    5 / 5

    reviewed by Rupert Robertson
    15 Aug 2019
    Yes, I recommend this product.
    "Excellent"
    I started with one pair of Zapperators . Over the last year I've gradually added additional pairs of Zapperators to the main system, starting at the power amplifier end right through to the crossover and more recently one pair added to each loudspeaker. So far I've fitted 6 pairs and would do so again. Worth every penny.
    5 / 5

    reviewed by Rupert Robertson
    15 Aug 2019
    Yes, I recommend this product.
    "Excellent"
    I started with one pair of Zapperators . Over the last year I've gradually added additional pairs of Zapperators to the main system, starting at the power amplifier end right through to the crossover and more recently one pair added to each loudspeaker. So far I've fitted 6 pairs and would do so again. Worth every penny.
    5 / 5

    reviewed by Rene Christensen
    18 Jul 2018
    Yes, I recommend this product.
    "Works With All Speakers And Speaker Cables"
    I have now purchased 4 sets / 8 units, and have tried / made all possible combinations.

    The Speaker Zapperators works with cheap, old quality and up to date high end speakers, at one or both ends of the speaker cable.

    What have surprised me is, "that the speaker cable has very little to say", as long as you allready have made a perfect / the right quality match with your speakers.
    5 / 5

    reviewed by Rene Christensen
    26 Mar 2018
    Yes, I recommend this product.
    "One Is Good / Two Is Better"
    Inspired by the feedback from the other buyers, on this page, I purchased one more for the amp side and YES, all I can say is, that they was right, there is more of everything !
    5 / 5

    reviewed by Rupert Robertson
    15 Feb 2018
    Yes, I recommend this product.
    "Excellent Product"
    This product brings about an instance and undeniable improvement immediately when fitted and represents good value for money too.
    I am adding further pairs of Zapperators in the chain between the amplifier output and even directly at the loudspeaker driver end too, all of which has been beneficial too and I have recommended the Zapperators to friends who run the classic Linn Naim set up in their homes too. Thanks!
    5 / 5

    reviewed by Rene Christensen
    26 Nov 2017
    Yes, I recommend this product.
    "Great Combination With Solid State Amp. / Alnico V Magnet Speakers"
    I have some 41 years old restored JBL medium sized 2-way speakers feeded with Kimber 8VS speaker cables and I must say: the RS zapperators rearly take the sound from the combination: Solid State Amplifier / alnico V magnet speakers to their best !!!
    5 / 5

    reviewed by Cameron
    27 May 2017
    Yes, I recommend this product.
    "Further Improvements!"
    So I got the additional zapperators and put them on the amplifier end (a Musical Fidelity KW250S all in one unit), and there are definitely further improvements especially in low level detail retrieval: there is a real sense that you are hearing everything in the recording. These are great products and make a big difference - just buy them and be gobsmacked!
    5 / 5

    reviewed by Bill and Val Wood
    14 Apr 2017
    Yes, I recommend this product.
    "Wow! Where Did That Come From?"
    After installing these we spent an evening playing old favorites from our vinyl and CD collection which goes back many years, details which had never been heard before leapt out, the overall sound had become clearer and more realistic. At the end of the evening we both agreed that it had been a very worthwhile improvement and was money well spent. The review by Cameron says it all. We have ordered another pair to fit at the amplifier end of the cables and look forward to being pleasantly surprised once again. The improvement was such that instead of replacing our 25 year old CD player we are keeping it for a while yey!
    5 / 5

    reviewed by Cameron
    13 Jan 2017
    Yes, I recommend this product.
    "Big Improvement In Sound"
    I bought the speaker zapperators along with the zapperator plug top unit, and I have to say that the Martin Collom's review is spot on. The improvement is not subtle, and is like a haze that you didn't know was there is lifted allowing a whole new level of detail and musicality to be revealed. So good I am getting another set of speaker zapperators for the amplifier end. Strongly recommended.