KPA102 Power amplifier module
The KPA401 is a complete 40W/80W (8/4 ohm) RMS mono power amplifier module based on our original CPA401 Monoblock power amplifier. The Module contains the rectifiers and high quality smoothing capacitors needed for an ideal power supply which just needs a transformer and suitable connectors to to make a complete working highly musical power amplifier. Connections to the module are by screw terminal so no soldering is needed if you buy a built and tested module.
The module also has an optional auxiliary “stand by” 12v power supply on board which allows main power to be switched on with an external relay or switch closure to earth.
External requirements
Heatsink
2x25v Power transformer (available separately)
Audio input connector and Remote power on connector
AC mains inlet (IEC C14 with switch recommended)
AC power switch (if using captive mains lead)
Suitable enclosure
Brief Specifications
Power output
40W RMS into 8 ohms – 120W RMS into 4 ohms
using 25-0-25V 4.5A AC power supply
Input sensitivity for full output
X mv RMS (Nominal)
X mv RMS (Full power)
Amplifier Voltage gain
xxdB
S/N ratio (input shorted)
-xxdBu (reference to 0dBu (0.775v RMS)
-xxdB (reference to full output)
Module size
80mm width x 100mm depth x 70mm height (using supplied 10mm PCB standoffs)
Power supply requirements
Transformer – 15-0-15 to 25-0-25 AC – 120VA – 2.4A
(240VA – 6A recommended for 4 ohm use)