DIY Amplifier 2x400W

Output - more than 400W
Musical Output - more than 500W
Impedance - 4ohm
Power bandwith - 30kHz
freq. rating 5 - 60Hz (-2dB)
Supply +- 70V
Distortion - less than 0,2%
+ protective gear, softstart (of course :D )...
Transistors - MJ 15003, MJ15004

Category:

Science & Technology

Tags:

• amplifier

[TheLawnWanderer]

class A-B?

[Kudrlin]

@TheLawnWanderer: The operating point of exciter is set to 80 - 100 mA for power transistors, emitor current cause voltage decline on resistors - part od exciter (no problem with sharing circuit diagram) and power transistor are closed. They're not working in class AB, but clearly in class B - no standstill current because of higher power and better effectiveness in low power. In low output voltage the power transistor take over role of darlingtons (exciter), which are working in class A.

[fabiuh991]

hey remember me? i have a faulty crown xls, i replaced the output transistors but it blew again =S i will send it to a pro to repair it =x

[Kudrlin]

@fabiuh991: Sure I remember you :D:D it's the best idea :D

[destroyersoueu]

Nice amplifier

[retsain]

@Kudrlin i have a circuit diagram which have a power transistor of MJ15015 and MJ15016......"

i update you soon...:)

[Kudrlin]

@retsain: I'm Courious! :D For sure, send me a message :) :D which power?

[retsain]

@Kudrlin thank you so much"

nxt week... i upload my POWER AMPLIFIER, ,my homemade which i use MJ15015..

[Kudrlin]

@retsain: MJ15004, MJ15003