Hi there,
I'm a newbie learner in audio stuff, and I'm currently designing and bulding amps for my speakers. They were old, the lows needed repair, I did. Now I'm waiting for the measurement for their specs to rebuild the box volume.
They are 3 way speakers and I have planned to make active crossovers. I have solid state AB amps for the lows and I will build chip amplifiers for the middles and highs, because of cost and simplicity. I will choose chips with higher power, because as far as I know, they tend to distort very much when heavily loaded.
I need to know in which parts of the circuit I have to invest high quality components. In the active filter setup, the caps are low valued, they will be foil kind, it's alright. But what about the opamps. I read that the buffer has to have a good quality opamp, but not the filtering section. Is it true?
About the electrolytic caps in other parts, it would be a good idea to change them all with audio grade, no matter if they are coupling or decoupling, right?
What about the buffer and final transistors? From what specs is their quality determined?
I'm a newbie learner in audio stuff, and I'm currently designing and bulding amps for my speakers. They were old, the lows needed repair, I did. Now I'm waiting for the measurement for their specs to rebuild the box volume.
They are 3 way speakers and I have planned to make active crossovers. I have solid state AB amps for the lows and I will build chip amplifiers for the middles and highs, because of cost and simplicity. I will choose chips with higher power, because as far as I know, they tend to distort very much when heavily loaded.
I need to know in which parts of the circuit I have to invest high quality components. In the active filter setup, the caps are low valued, they will be foil kind, it's alright. But what about the opamps. I read that the buffer has to have a good quality opamp, but not the filtering section. Is it true?
About the electrolytic caps in other parts, it would be a good idea to change them all with audio grade, no matter if they are coupling or decoupling, right?
What about the buffer and final transistors? From what specs is their quality determined?
It starts and starts with the quality of the speakers. If they have it u need other components to have it. It does not mean u cannot have high quality component filled gear, but the speaker quality is the most critical one.
Gajanan Phadte
Gajanan Phadte
Second that speakers first...
As to components, some changes may improve sound, some may not, suggest you learn more about the various circuits (electronics).
Cahnging op-amps is not for the faint hearted, I have worked on some very sensitive analogue designs in the past (even more sensitive than audio!!!) where the difference in op-amps can have a disastourus effect on the circuit working. We have even seen changes between batches of the same op-amp when die and feature size has changed.
Look fo guidlines about changing op-amps from other users of this forum...
As to caps well if it rocks your boat, you'll get an improvement by changing them, but where decoupling is employed (generaly for RF) I would leave the caps as they are.
As to components, some changes may improve sound, some may not, suggest you learn more about the various circuits (electronics).
Cahnging op-amps is not for the faint hearted, I have worked on some very sensitive analogue designs in the past (even more sensitive than audio!!!) where the difference in op-amps can have a disastourus effect on the circuit working. We have even seen changes between batches of the same op-amp when die and feature size has changed.
Look fo guidlines about changing op-amps from other users of this forum...
As to caps well if it rocks your boat, you'll get an improvement by changing them, but where decoupling is employed (generaly for RF) I would leave the caps as they are.
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