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There'as a nac 42 for auction on ebay with a strange add-on circuit board on the right side of the pre-amp. From the picture, it appears to use the same parts as Naim does (same cap manufacturers, etc.) but I've owned this pre-amp and mine had no such circuit board. Anybody know what that thing is.

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I have only seen inside the 42.5 and 62, not the original 42, the picture bears no resemblance to either I have seen. Weird. Seems to have an extra output too, is it a 42XO (had a built in crossover for active)?

Oh, its here www.cybureau.com/4sale/naimboards.jpg to save hunting around ebay.

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That's not an active 42, is it?

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Pah, both came to that conclusion at once, you will have to share your FEPs.

NaimSpotting - coming to a trendy theatre near you...

However I'd also guess it's the active 42 - presumably they sold it "un-active" but with everything installed so a dealer could just hook up the active bits when required.

There was one of these advertised on Loot a few months ago for IIRC around £150. I almost bought it just out of curiosity - very cheap to get something similar to a 92/ixo. There was something appealing in a real 'mullet' system say this amp, a couple of old 160s (could it be powered from one (or both?) of the power amps) and something difficult to drive like a pair of Saras.

Check 'em out here

Pretty sure my old 42 wasn't like that, anyway.

Anyone from Naim like to put us out of misery?

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However I'd also guess it's the active 42 - presumably they sold it "un-active" but with everything installed

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It's a 42XO without the crossover connected, most of them ended up this way!

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lots of potential FEPs in this thread methinks

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...lots of potential FEPs in this thread methinks

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OK, award yourself 15 FEPs for figuring out that the 42XO was sold unactive, but subtract 40 FEPs if you actually used the 42XO in the ultimate mulletted system: active with four 135s.

Recall the point about electronics from the FEP manifesto:

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Does your preamp weigh 5 pounds and your power amp weigh 500? If yes, subtract 40 points.

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I'm interested in your 42/110/110 setup. Did you have a snaps/HiCap or did one of the 110s power the 42? If so which one? left or right or where they configured to be tweeters and woofers?

Naims wisdom was generally that you should go for a 250 rather than go the active route with a lesser power amp. How did you end up there?

I think Naim soon tired of this approach, suggesting that a good passive system was better than a cheap active one. (i.e. 1 x 160 being better than 2 x 110s)