(앰프 모습 : 음핑고 표준형노브 1개를 구입 시험후 나머지 노브들을 추가구입함)
(독일 바이어가 음핑고 노브, 표준형3개 및 주문제작 큰것1개를 구입사용한후에 보내온 후기입니다.
허락을 얻어 여기에 옮깁니다.
이 바이어는 그 바로전 4~5월에 MD-01, MD-02, Cable damper를 추가구입했습니다. (2017.8.15.)
-. Amp. : Symphonic Line RG 9 Mk4.
-. knob : 표준형 MK3225-6.0 , 3ea. 주문제작 MK4430-6.0 , 1ea, 합 4ea.

" Thank you so much for the superfast delivery of the knob and again thank you for the wonderful bells,
which have already found their place in our living room.
They are really amazing because they enable you to adjust the sound within certain limits so that it meets your personal taste.
I was not at home for some days and returned only yesterday evening.
My neighbour had taken care of the packet. That is why I wasn't able to try these little soundwonders out earlier.
But I did so first thing this morning and now I can clearly state that I like very much what I hear.
The 4th (and last) knob is also doing fine on my amp.
Once again I must say these knobs (like everything that you offer) are beautifully handcrafted and it is a great joy just to look at them.
But when you hear their positive effect on the sound one can realize how much more hidden craft and knowledge must be in in them.
I wish you all the very best. Kind regards. G.E. Germany"