Posted on Monday, May 5, 2008 • Category: Amplifiers
This a LM3886 amplifier that features both balanced (XLR) and unbalanced (RCA) audio inputs.
I've changed the internal circuits of this ChipAmp or so called "GainClone" to use premade circuit boards. The reason for this is that the bass/ low frequency response of the prior version was not as powerful as I would have liked. It is said that simply adding more capacitance to the power supply improves this, but worsens the high frequency characteristics. Boards use a noninverting amplification scheme, versus the inverting circuit I had used previously, I have heard some people mention that noninverting is better in some respects so wanted to try it. At the bottom of the page you will see the different schematics for the inverting and noninverting designs. In addition, Images will now load in a new window.
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