Decoupling capacitor on amplifier input ??

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Oystein

  • Jr. Member
  • Posts: 33
Decoupling capacitor on amplifier input ??
« on: 24 Jul 2009, 07:22 am »
Since I am aware of the brand Odyssey I am very much interested in buying an Khartago (Plus) amplifier.
Because I have an integrated amp at this moment I will also need a quality pre-amplifier.

I decided to build my own based on some very good modules expanded with some extra features that I find usefull for myself.

There is one thing I need to know: do the Odyssey amps have a decoupling capacitor in the signal input to keep any dc out of the amp ?
This will help me decide on the final design of the pre-map.

Thanks,

Oystein

mgalusha

Re: Decoupling capacitor on amplifier input ??
« Reply #1 on: 24 Jul 2009, 02:33 pm »
Yes, the Odyssey amps have an input cap. At least the ones I've seen did and though there have been some changes I don't think this has changed. The input cap is large enough that they don't experience any bass roll off.

Oystein

  • Jr. Member
  • Posts: 33
Re: Decoupling capacitor on amplifier input ??
« Reply #2 on: 24 Jul 2009, 02:57 pm »
Thanks Mike.

BTW I looked into your pictures and I was very surprised to see a very similar preamp as I am planning.
I planned to use the same volume control design by Jos van Eijndhoven (now for sale trough Tentlabs) but with an active output.
I plan to use an Op-Amp design to keep it simple but I will implement the Burson Op-Amps whcih I already installed in my cd-player with great result.
I want to make a custom PCB - dual mono / separate power supply - with 6 RCA inputs and 2 outputs.
But in basisc design almost like your pre-amp  :D