Thank you so much Don. Your answer clarified everything about this 
upgrade for me. I will swap out the entire board.

Cheers,

Nick NT1A


On 12/5/2011 9:20 AM, Don Wilhelm wrote:
> Nick,
>
> The little K3DSPLPF will take care of the high frequency part of the 
> spectrum just the same as the DSP Board swap, BUT, it will not extend 
> the low frequency response.
>
> So, the answer depends on what you want to accomplish - if you want 
> both the high and low frequency changes in your K3, then the DSP Board 
> swap is the easiest way to accomplish that.
>
> 73,
> Don W3FPR
>
> On 12/5/2011 9:04 AM, Nick Thomas wrote:
>> Hi Gents,
>>
>> I have an early K3 - serial # around 400. Do I need to swap the entire
>> DSP board out for a Rev D board or is the little mod kit *"K3DSPLPF"
>> *that is sold for $40 going to do it for me?
>>
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