DN27 vs DN27A

[altec9440]

hello,

about, Klark Teknik DN27 Graphic EQ, can someone point differences between these KT models ?

 

[planet10]

Links so we know what you are referring to?

dave

 

[altec9440]

Vintage product

 

[planet10]

Klark Technik, i’d not use either. They were amont the best of class but still very obvious inserted into the system.

dave

 

[profiguy]

Too much summing noise in both models. Modern KT is now made by the same guys that used to run Midas and Behringer and now TC electronics. Its a Chinese product.

 

[altec9440]

China manufacture for the world

Just want to know differences between models in order to have fun, restoring a vintage equipment.

By the way all schematics I found had missing values... If someone have a complete schematic

 

[turk 182]

the biggest differences between the DN27 and the DN27A are the Knobs after that, turn on delay, total system bypass via switches, earth lift facilities, and optional plug in x-former balancing after that they're clones.

missing values?

 

[altec9440]

thanks fo reply.
The circuit in the operator manual does not contain the values of the components.
https://archive.org/download/Klark_Teknik_DN27_Manual/Klark_Teknik_DN27_Manual.pdf

from time to time there are classifieds of equipments that make you want to put back into service equipment that marked an era 🎷

 

[wrenchone]

I bought a Nikko graphic equalizer for my system, but was never really sold on the way it colored the sound. It may have been full of 4558 opamps....

 

[turk 182]

so just which component values are you seeking ?

the only things i would concern myself with in rebuilding these is the supply filtering and the condition of the fader/sliders after that all the filter components where all high quality so not likely to need replacing.

 

[altec9440]

the only things i would concern myself with in rebuilding these is the supply filtering and the condition of the fader/sliders after that all the filter components where all high quality so not likely to need replacing.

totally agree with you about power supply and faders. But knowing IC's used before getting a product, can avoid finding yourself searching for rare components !

 

[turk 182]

they're usually populated with TL or NE series opamp's so no nothing exotic in there, that why so many are still out there in the wild...quality lasts.
i had one come to me for service because someone did some "op amp rolling" for supposed "sonic improvements" but in the end was oscillating violently so don't go off the deep end with mods and all should be good.

 

[altec9440]

thanks for informations about IC's.
Next time I see a used one, I will buy it.