1pair Musical-Fidelity –A2 Class A Power Amplifier Kit DIY
 
DIY KIT  Project:
 
DIY kit: Contains the PCB and the components needed on the PCB, but does not include the power transformer .

To complete this project, high level knowledge of electronics and rich experience in terms of soldering and testing are required.

Due to time zone and language communication restrictions, we can only provide limited technical support, and you need to solve problems by yourself.
 
 
Tech highlights:

It is based on the core circuit of the Musical-Fidelity A2 Power Amplifier.

Tech highlights:

Fully Discrete

Max:30W 8Ω  Class A (±33VDC)

Monarual design

single-point grounding, ground resistance is close to the 0.02 ohm, low noise design

PCB is small and flexible, very friendly for all kinds of chassis installation.

More cost-effective sound modification potential.

Total 4 Power MOSFETs per channel for power output

Maximum input voltage:3.8VPP

Gain: 13X

input resistance:   100K

Output Power: Class A  20Wate 8Ω(±24VDC)

Recommend to use CRC filter after rectifier.


Tips:

please prepare external heatsink.

Adjust 1K-VR clockwise to the maximum resistance value before powering on.

After power-on, slowly adjust 1K-VR counterclockwise until 0.47V can be measured between A-B,A-C,E-F&E-H..




Produkt-Konfiguration:

Fertige Platine: Basierend auf der gut getesteten Platine der Standardversion des Bausatzes haben wir die Spannung aller wichtigen Punkte überprüft und den Signalgenerator und das Oszilloskop für die doppelte Überprüfung der analogen Wellenform verwendet. Wir werden diese Platine nicht für Hörtests verwenden.


Bitte halten Sie die Spannung der Testpunkte nahe genug daran, +-20% ist auch erlaubt.
 
 
 
Paket:
 
1pair Musical-Fidelity –A2 Class A Power Amplifier- Kit DIY
 
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