Robert Koda Takumi K15 Preamp

[Birdwatcher]

…but Mr. Koch doesn’t use point-to-point wiring, but conventional printed boards.

 

[Rob181]

…but Mr. Koch doesn’t use point-to-point wiring, but conventional printed boards.

And the problem is - what exactly....

 

[LL21]

HI guys...as I often say, I am no techie...I simply took from various reviews. Tone Audio, HiFi Plus, Audio Technique, where they refer to point to point

Tone Audio - Jeff Dorgay
"No part of the K-10 receives less than punctilious attention to detail. And although it’s solid-state, nearly every-thing is wired point to point, with only two tiny internal PCBs. Koda says the latter feature gold placed over thick copper tracks, and one enjoys point-to-point silver wiring..."

HiFi+ - Alan Sircom
"The point-to-point circuit design also allows greater control over the materials used in the signal path, and in this case, Robert Koda hard- ..."

HiFi+ - Alan Sircom
"Let’s break those terms apart, in the light of the line preamplifier; ‘minimalist’ is doing without a remote or a balance control, ‘uncompromising’ is recognising the extent of the damage including either of those circuits has on a preamplifier. ‘Minimalist’ is limiting the preamplifier to five balanced or single-ended inputs and two balanced or single-ended outputs, ‘uncompromising’ is wiring those inputs point-to-point direct to the selector without any form of circuit board to get in the way. ‘Minimalist’ is replacing a potentiometer with a resistor ladder to make a better volume control. ‘uncompromising’ is going for a custom-designed L-pad attenuator instead. An L-pad design means ‘volume level’ isn’t a point on a potentiometer, it isn’t even a ladder array of resistors (because that means the potential for many resistors and solder joints in the signal path); this arrangement means there is just one resistor per channel in the signal path at any given volume level. What’s more, those high-precision carbon composition resistors are specifically designed for audio use and are only ever used in audio applications (Koda stresses that these parts are only used in audio applications)."

Audio Technique - Lincoln Chen
"The internal layout is largely built using point-to-point wiring using pure silver cables and copper Litz cables coated with gold..."

 

[LL21]

…but Mr. Koch doesn’t use point-to-point wiring, but conventional printed boards.

Hi...let me know what you think of the quotes above in my post...I am no techie so was simply quoting from 3 different reviews whih reference his use of point to point wiring.

 

[Birdwatcher]

Both have somehow right.

The input and output terminal and the volume control itself is directly wired, so point-to-point.

But on the left side there is a printed board.

 

[LL21]

Thank you...helpful!

 

[microstrip]

Thank you...helpful!

The key point is the word "layout" as used in one review . The layout is point to point wired, as in many other preamplifiers. But the power supply and active sections are built with pcbs. We can't say that the preamplifier is point to point wired. If you want to see what is involved in making true point-to-point look at this nice Atmasphere video

 

[LL21]

Thank you!