aion Blaze 매뉴얼 - 페이지 6

{카테고리_이름} aion Blaze에 대한 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. aion Blaze 11 페이지. Overdrive with bass cut

BUILD NOTES

Omitted capacitors

Two capacitors near the end of the circuit are unpopulated on the PCB. C17 is an op-amp feedback

capacitor to prevent oscillation, while C19 forms a low-pass filter to cut highs in conjunction with R17

As configured, the final op-amp stage gives a gain of 2. The presence of C17 indicates that the output

stage was likely originally designed to have higher gain, since the feedback capacitor is not needed if the

op-amp amplifies the signal only a small amount.

C19 indicates that there was originally some added tone shaping at the end, perhaps to correct for

an otherwise overly bright circuit. It's possible the tone stack was tweaked in order to remove this

brightness so that the hi-cut was no longer needed.

In any event, since there was enough space on the PCB, we left these two capacitors in the circuit so you

could experiment if you want. Here are two suggestions to get you started:

• If you want to get more maximum volume out of the circuit, you can increase the value of R15 (e.g.

100k or 150k) and use 47pF for C17.

• To reduce brightness, turn the tone control all the way up and then select a value for C19 that

corresponds with the amount of treble you want to cut. For example, 22n will cut above 7.2kHz, or

47n will cut above 3.4kHz.

BLAZE DYNAMIC OVERDRIVE