Which Naim board for 72 pre amp would best suit my moving coil cartridge? It outputs 0.3mv and manufacturer recommends 100 ohm loading. The cartridge is AT33EV from Audio Technica.
I believe 323S boards would be what you need.
These are the standard Naim MC boards.
The other MC options are the 323 K - designed for Linn carts (and same gain as S) and the 323 E - designed for medium output MC’s (lower gain). Any 323 board can be converted (*) to any other variant, by Naim or a Naim service agent. So should you find a set of K or E boards, at the right price, all is not lost.
(* - I use a set of E boards with my Dynavector 10X, which were bought as S’s and converted to E spec, by Class A.)
PS. All of this also applies to the 5xx series of boards. So a 523 S board can be converted (by Naim or an agent) to 523 K or 523 E.
My E boards mentioned above are 523 E’s (in my 82), converted from 523 S. But I also own both 323 E and 322 N boards (for my 72) - and 552 N boards (removed from my 82).
NB. Its not possible to convert between x22 and x23 boards. The circuit design is different.
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