Jl 300.4 car amp - A1070 and C3207 transisitor replacemant

[coed1992]

I found 2 deffective transisitors in one of the drive module of JL 300.4 amplifier. A1070 and C3207 transistors but i can not find it , can you please give me a replacement part for these transistors? Thank you very much.

 

[Perry Babin]

Wait to see if there any other suggestions but the KSA1220A and the KSC2690A are generally good driver replacements. They are much faster than the originals which can cause some issues.

 

[MarioRestucci]

Wait to see if there any other suggestions but the KSA1220A and the KSC2690A are generally good driver replacements. They are much faster than the originals which can cause some issues.

Maybe I misunderstood.
But even when the replacements are faster (therefore better) than the originals can problems occur?

 

[Perry Babin]

Definitely. A faster transistor can tend to oscillate or create noise in a circuit where damping wasn't needed for a slower transistor.

This is a class A/B amp. Class D amps have different requirements and faster transistors may be OK (although the fastest available may have been the original parts).

 

[coed1992]

i will try the replacement parts you have suugested. I hope i can find them here in Dubai. Will update you once it is done. Thanks a lot for the quick reply. I believe i will be on your page so often.

 

[coed1992]

at this point it is very difficult to order in our country because of the current situation, as we are also in lockdown in Dubai. I will update you once this is over. thank you vey much for the help and support. More power bro.