Zapperators

[normmc]

Hi. Has anyone used these, are they an upgrade, would like your thoughts on them.

[Barry]

Hi. Has anyone any used these, are they an upgrade, would like your thoughts on them.

What are they? Norman, can you give us a link?

[Puffin]

They are basically a Zobel network (a capacitor and resistor in series) placed across the - & + outputs of your amp.

https://en.wikipedia.org/wiki/Zobel_network

The RA ones are a lot of dosh for a couple of components. Although the blurb on RA suggests that there my be some other components in their version.

[Barry]

Thanks Rob,

I know what a Zobel network is (most amplifiers have them fitted on their output), but I didn't know they were called "Zapperators".

[Marco]

No, that's solely a Russ Andrews marketing term.

Marco.

[wee tee cee]

The RA news letter was delivered today....new disk treatment machine for serious wedge-much head scratching and working my way through my WTF lexicon!!!

[The Black Adder]

The RA news letter was delivered today....new disk treatment machine for serious wedge-much head scratching and working my way through my WTF lexicon!!!

HHAHAHAAH!... Yes... I've seen that too. I love getting the RA Comic. It's very entertaining.

The DCT :rolleyes: is well priced at just over £3K....!!!!!!!! :mental: - All because of them pesky electromagnetic fields or something... Yeeesh!

[normmc]

Thank to all for their comments. Sorry I should have mentioned it was speaker zapperators I was asking about, has anyone used them,still using them, any views please.

[Desmo]

Thank to all for their comments. Sorry I should have mentioned it was speaker zapperators I was asking about, has anyone used them,still using them, any views please.

it's the same thing if you read Russ Andrews description he says you can use them at the speaker or amplifier end of the cable. As others have said, I do have Zobel networks fitted to the outputs of some of my amplifiers, but I've never tried them at the speaker end of the cable. Not actually used the Russ Andrews ones though....

[Ammonite Audio]

Thank to all for their comments. Sorry I should have mentioned it was speaker zapperators I was asking about, has anyone used them,still using them, any views please.

I've not used them but a few years ago Martin Colloms reviewed them in HiFi Critic. He initially found them to have little effect, but wrote an update in a following issue - he realised that the initial testing had been with Transparent speaker cables, which have impedance termination networks in boxes, so the effect of adding another small network may have had little effect. So, he re-tested the Zapperators with 'normal' cables and found that they had, in some cases, a profound effect. So much so that the very cheapest 'bell wire' cable was elevated from 'cheap crap' to 'really rather good by any standard' (my descriptions). He thought that it was all to do with the effects of RFI and how the networks in the Transparent cables, and the Zapperators, dealt with the RFI.

Anyway, there is one way to find out if they work for you. Take advantage of Russ Andrews' money-back guarantee, and give them a go. They may work for you and your system. They may not, of course, but no money will have been risked finding out.

[hifi_dave]

Decades ago, John Michell came across with a little network to hook across the speaker terminals in a similar fashion to the Zapper thingies. They were just a couple of Quid each and were made by Colin Wonfor as I recall.

Many little 'upgrades' could be easily knocked up in minutes by someone with a modicum of knowledge and could be a little earner as official AOS mods, to help finance the forum and at a price to save members money..:thumbsup:

[Mr. C]

No, that's solely a Russ Andrews marketing term.

Marco.

On this occasion Marco the name comes from the manufacturer of these devices (Surprisingly not R.A. :lol:)

They are manufactured in the UK by a well known and respected company, what Russ charges for them and whether you feel they do anything for your system is another matter.

Martin Colloms that bastion of truth justice and the Colloms way

[Marco]

Ah, I see. Thanks for the clarification, Tony! :)

No, I'm not generally a fan of the overpriced nonsense sold in RA's quarterly 'comic' ;)

Marco.

[Colin Wonfor]

What I made was a Snubber Circuit to allow for cable ringing into a motor or speaker load simple.

Would you like the circuit?

[cyclopse]

HHAHAHAAH!... Yes... I've seen that too. I love getting the RA Comic. It's very entertaining.

The DCT :rolleyes: is well priced at just over £3K....!!!!!!!! :mental: - All because of them pesky electromagnetic fields or something... Yeeesh!

Does anyone buy this shit?

[Barry]

What I made was a Snubber Circuit to allow for cable ringing into a motor or speaker load simple.

Would you like the circuit?

Would be interested to see that Colin. Can you post it in the DIY section please?

[Colin Wonfor]

Here is Zoble info page interesting it was used mainly on cables.

https://en.wikipedia.org/wiki/Zobel_network

I used 470nF Rifa `X` Class and a 10R 5W Welwyn Bifilar or non inductive resistor in series then the network went across the speaker terminals at the speaker end.

Worked well and another KISS design.

Good bloke KISS loved the girls. he he :lol: :doh:

[Audio Advent]

I came across something similar very recently online, a zobel built into a used shotgun cartridge with leads (and branded), about £90 wherever it was..

Moving across from another discussion about s/pdif cables and how a non-75ohm cable and connectors for s/pdif produces images, could a zobel network design help clean up s/pdif transfer via coax?