Upgraded Naim 323 MC Phono cards - NJ323 Phono Cards

Description: To follow on from my much acclaimed 321 and 729 cards I now have modified phono cards available.Available as moving coil (NJ323) cards in "S", K" or "E" versions for cartridge matching, they employ the same modifications as my buffer and gain cards and bring the same performance increases to the phono section of Naim shoebox amps. They are a simple 5 minute drop in upgrade for the NAC32, 32.5, 42. 62 and 72. They will also fit many of the earlier NAC12 preamps.The "upgrades" include the following:Use of 1% tolerance 25ppm metal film resistors in place of the original 5% for quieter operation.Signal coupling caps are upgraded to modern Wifa film capsAdditional power rail decoupling is employed to eliminate power rail noise form entering the signal path.Feedback and power rail decoupling uses Nichicon KZ series electrolytic caps - selected because of their If you have already tried my 321/729 cards then you already know what to expect, another step forward for your phono source. If you haven't, expect tighter bass definition, cleaner and possibly slightly more extended high frequencies, transparency and improved imaging.To quote a couple of recent customers re their new NJ323 cards: "I've had some time to reflect on the difference fitting your phono boards has made. Its been 2 weeks now since fitting, and the change has been exactly what I was hoping for. First impressions were in the mid range which seems to have a new airy quality to it. All the instruments nicely spaced and clearly defined and I think, slightly more forward. The Bass was as it should be, completely under control. Upper frequencies too, had an improved clarity. But for me the biggest gains were in the sound stage, which had not only widened but also heightened!, and the sound floor which is now, on a good recording, inky black!.....a total delight all round. Many thanks for solving my predicament. A beautifully made product." "I installed the phono boards in the 72 and installed the cartridge and they sound great! There was an immediate increase in detail and listenability. After playing albums for a few days, the sound has begun to improve – can’t wait until the boards, amp and preamp are fully broken in".All cards will be hand built to order. If you know your cartridge loading requirements and can specify alternative loading caps and resistors I will gladly build to your spec at no extra charge - although there may be a slight delay if I have to source components. Each order is for one fully built, tested pair of cards.

Price: 199 USD

Location: Greenbrae, California

End Time: 2024-01-30T22:21:45.000Z

Shipping Cost: N/A USD