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MC402 vs FPB 300cx

Anyone have any insight here...These are two amps I am considering going for, but have a little concern leaving Krell. I have read alot on both, most of the information on the FPB I am familiar, and I am familiar with the Krell sound. The Mc402 however seems to get some commentary in the Bass area, lackthereof. I love the bass slam of my Krell, and I love the detail of it. Is MAC way off in terms of sound signature? Does the 402 give slam, or does it roll?

Thanks for any insight anyone has.
jc51373
aball
2,018 posts
 
I would give it shot and see since it is just a matter of changing a jumper setting. If you had to solder a cap in, I would forget it. I hope Krell comes through for you.

Arthur
audphile1's avatar
audphile1
5,340 posts
 
Jc51373, whatever you do, be careful. The caps cary some voltage. You may want to unplug the amp several hours in advance to discharge the caps before you do this.
jc51373 OP
542 posts
 
Audphile1-you just answered a question I had in my head...I was wondering that last night when I was looking inside, if there could be residual electricity. I will be careful.

I will tell, ya is marvelous looking inside this thing, incredible engineering.
jc51373 OP
542 posts
 
I just opened the amp, and the the jumpers are NOT there..Meaning, caps are engaged, question answered. But who the heck took them off is the new question.
aball
2,018 posts
 
Well that changes things! Oh well. Someone at the factory probably just forgot to put some jumpers on the board. Or the Krell person got it backwards.

Caps hold a charge if they are isolated from chassis ground. In this case, they can hold a charge for months. No joke. I have seen this many times with big caps of modern design. But many amps have a bleeder resistor to chassis ground for draining the caps very quickly, mainly to avoid fuses blowing if there is a brief interruption of power. I have no idea which way your Krell is.

Arthur
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