This is my latest preamplifer design, the Ovation Symphony, featuring Baxandall tone controls, up to 7 inputs and a class A 2 W headphone amplifier and a Goldpoint 24 position attenuator. The write-up describes the design process and choices in…
Please read this update:- Updates and Errata – nx-Amplifier before you start building your nx-Amplifier. If you have questions, feel free to post them up on the comments section. *********************************************************************************************************************** This power amp design is based on the sx-Amplifier topology, but with…
Here is a short pdf that shows you how to wire-up a power amplifer and get zero noise – i.e. no hum. For new builders, this is often one of the most frustrating aspects to get right. This simple guide should…
This Excel spread sheet tool was developed from one by Steve Hagman (www.AnalogHome.com) and allows en and ien data for up to 7 opamps to be compared. When using the tool, make sure you enter comparable data – so for…
The Ovation sx-Amplifier is a low component count current feedback topology (CFA) design that delivers the first 15W class A into an 8 Ohm load and about 25W in class AB mode. The design uses readily available components, achieves very…
