Exposure VXN active crossover with NDS/282/2x250 into Kudos S20A

Now with Snaxo 242 no longer available outside UK I am planning to include the Exposure VXN active crossover in my system instead, as suggested on this very forum. Maybe someone out there has this experience behind or a keen opinion on such move?

I am very fond of my Kudos S20A and I believe they perform fantastically in my not-too-big room. NDS into 282/250DR is a great match. So what is missing? Nothing much really, but would like to open up the speakers to the next level in the active set-up. Not convinced by 252/300 and with 552/500 sadly out of reach, this looks to be the best next move… Also the one, opening some new paths. Apparently the same VXN can easily be adjusted to Kudos Titans, should I ever make the move… and I could follow a bit “wild” scenario with 4x5010 Exposure mono-block.

Have not worked out all the technicalities yet, but it looks the move will require DIN-RCA and RCA-XLR cabling between 282, the VXN and the 250s. Any suggestions which cables would keep the system in balance?

Thank you very much for all thoughts and advice, including: you must be crazy.

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252/300 is a fantastic amp, what didn’t you like about it? Not that I’m saying you shouldn’t go active instead as long as you don’t mind the extra boxes, expense, and careful setup that’s required. Crucially, your source (assuming you will be using NDS/555PS) is good enough for an active setup.

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Sure you have noticed Exposure have a link with Kudos often demoing with the VXN and 4x XM9 mono blocks.

I Run a 3010 pre with 2 XM9s. My next upgrade will probably be to a 5010 pre!

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Thank you ChrisSU. Nothing wrong with 252/300. For my coarse ears 252 is not a step change in transparency and energy that are key for me, to justify the cost.

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Thank you Spb. The very idea of 4 mono blocks is very appealing. :slight_smile: What source and cables are you using?

Hi Naim ND5XS2 which has both DIN and phono style outputs, so easy for me to use the phono output.

Cable wise, Atlas throughout

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Definitely something I’ve missed, as I thought going active meant less boxes.

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Only if the active speakers are the type with the power amps built in, like ATC. Otherwise you need two, three, four or even six power amps feeding the speakers directly with no crossover between amps and cones.

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With active speakers (say ATC) with crossovers and amps built in then a box reduction is possible. With Naim and Exposure electronics, active means quite a few boxes and cables. If you want active Kudos with minimal boxes then Devialet and Linn offer a different approach.

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Linn also do a 1 box active crossover with amp modules inside but it requires a Linn system hub to feed it as it uses their exakt link connection. It does make a 2 box full system though if that’s an issue.

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Active can take you to one extreme or the other. You can get rid of the HiFi rack completely with speakers like the Dynaudio Focus XD series, Kii Three or Dutch & Dutch 8c, or just use a streamer/preamp or DAC/preamp with active speakers such as ATC, which contains just a power amp. Then there’s the traditional Naim way which takes the separate box idea to extremes with a separate crossover in two boxes and a power amp for every driver.

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In the same system as you I added a NAP300DR.

With the NAP300 S20’s are completely transformed, they seem like a totally different speaker. A 282/HiCapDR/300 is an excellent amp.

I’ve since added a SupercapDR and a 252 and whilst these upgrades did gain very worthwhile improvements it’s the 300 that sticks in my mind as the large and game changing upgrade.

I haven’t heard S20’s active and they may be tremendous but I wouldn’t overlook the simplicity of remaining passive and switching the 250 for a 300. The 300 is what Kudos use when developing and ‘voicing’ their speakers which is probably why they sound so right with them.

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Thank you very much for your advice trickydickie. You are describing what I have in mind to gain with the active system. Great to know you have achieved such a big step with 300. A bit surprising, too, in terms of “totally different speaker”… So many paths… :slight_smile:

I have googled all this since the replies but difficult to get a succinct answer…so the benefit of an active-active system is what exactly? I’m guessing it’s presentational differences and one isn’t ‘better’ than another but it seems an awful lot of faff. Albeit worth it I guess if that’s what one is into

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Thank you TotallyTangerine. True, more faff is guaranteed with cables and boxes. You have that already with Naim, so more of that. :slight_smile: I would expect “better” not just “different” presentation. Active over passive should bring greater control over speakers, significant reduction of loss, distortion and “cross-talk” thanks to separation (which actually makes one Naim amplifier better to another). On the top of that active crossover is amplification adjusted to specific speakers - e.g. VXN is advertised as pure dual mono… If you are happy with the speakers that should be one way to make the most of them.

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