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Z451 High Level Input Filter

$135.00

All prices include plug-ins for both channels.

These boards fit the NAC12/32 series and NAC72 preamps and replace either the Naim NA326 Link or NA328 Variable Level Input boards. They are designed specifically to enhance digitally-derived sources such as CD players, DAC's, etc by taking the "edge" off the music and providing noticeably more tonality to instruments and voices.

If you have a very high quality CD player or DAC, we suggest using the straight through Z450 jumpers instead.

The Z451's are direct plug-in replacements for both the original Naim NA326 and NA328 boards. If you do not have such boards, each pair of Z451's will allow you to use one of the preamp's two special inputs (phono and aux/phono2) instead of the Tuner or Tape inputs (which are already wired straight in). Later model 72's can come with wired links on the motherboard which preclude the need for any boards in these first two input positions. If you are unsure of your internal setup, please check it before ordering and write us with any questions.

Gold plated connectors (identical to Naim's) are used for reliability. Easy installation - absolutely no soldering or rewiring required. (please see the installation manual and/or the video for your unit in the Support section).

Price is for a pair of boards.


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  • Shipping Weight: 0.25lbs


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