2010年3月29日 · APEX AX20P (AX14-TEF) AX20P is,as it is already known actually AX14-TEF,but on steroids because of three output transistor pairs (at least this one by me). it needs replacing 1k resistors in bias-circuit to 1k5 or 1k8 (related to schematics) to achieve bias adjusting. with 1k bias is constantly 0mA (or 0mV at emiter resistor).

2022年2月13日 · With an increase in the overall gain of the open-loop amplifier, the difference signal of the input differential stage decreases and, at the same time, the linearity of the input …

2020年7月18日 · The amplifier is made according to the classic three-stage architecture scheme. The amplifier is easy to build and configure. At the same time it has a decent sound

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Усилитель APEX AX20P. Принципиальная схема, плата LAY6 формата. Список элементов.

https://www.uydudoktoru.com/threads/apex-ax20p-amplifikator-devre-semasi.31732/APEX AX20P Anfi devre şeması ve testleri devamına linkten ulaşabilirsiniz

APEX AX20P amplifikatörü için 65-0-65V'nin maksimum besleme voltajına ihtiyaç vardır. Devre şeması aşağıda yer almaktadır. Bias ayarı nasıl yapılır...

Apex

2010年3月29日 · Found oscillation of Apex AX9. It was mistake I made on layout, I connected 47pF to collector and emitter of BD139 and BD140. I have changed 15v zener to 22v for LME49860. Love sound of this amp on my monitor speaker lots of detail in mids, NX-14 will be replaced with AX9. Corrected Layout. Click to expand... Thank you for this pcb design.

Class D amplifiers were the perfect choice for the APX line, thanks to their light weight, phenomenal dollar-per-watt ratio and efficiency in converting available power into usable wattage without generating the type of heat associated with other designs.