[Elecraft] K3 audio response, big roll off observed

[Arie Kleingeld PA3A]

K3 #1255 with all mods: response as flat as a pancake up till 4 kHz.
(line-out into pc-soundcard)

73
Arie PA3A

Op 22-12-2015 om 14:56 schreef Joe Subich, W4TV:
>
>
> On 12/22/2015 8:48 AM, on4iq wrote:
>> Listening via 6Khz filter
>> there is 15k 6k 2.8k installed
>> I just tried to listen in FM, useless, cut audio off above 3Khz even 
>> in wide
>> filter setting
>> image shows roll off with flat EQ
>>