This is a follow up to my review of IOM NCore Pro PWR Amp based on hypex NC252MP. The owner gave me kind permission to take the top off and show what is inside.
There were only four screws that held the lid on. Taking those out allowed ready access to inside of the amplifier (click on the image for larger image):
There is not a whole lot beyond the Hypex NC252MP. Focusing on that, I was disappointed once again to find low-tier Su'scon electrolytic capacitors in the switching power supply where they are likely to fail:
Fortunately they are rated for 105 degree C (as opposed to 85) as it should be in this application.
The whole module is firmly screwed into the bottom of the thick case so power dissipation should be reasonable.
I checked the mains wiring next:
Happy to see crimped butt connectors and proper grounding to the case which I confirmed using my multimeter.
Likewise, the soldering of the speaker terminals was fine:
There were a few solder balls on the bottom of the case which would have been nice to have been cleaned/blown off.
Overall, this is well above what an average DIY person without substantial electronics assembly can do.
The close proximity of the XLR input connectors to the mains input is likely responsible for some of the bleed. Nothing could be done in a case this small though.
Overall, it is a fine assembly job.
There were only four screws that held the lid on. Taking those out allowed ready access to inside of the amplifier (click on the image for larger image):
There is not a whole lot beyond the Hypex NC252MP. Focusing on that, I was disappointed once again to find low-tier Su'scon electrolytic capacitors in the switching power supply where they are likely to fail:
Fortunately they are rated for 105 degree C (as opposed to 85) as it should be in this application.
The whole module is firmly screwed into the bottom of the thick case so power dissipation should be reasonable.
I checked the mains wiring next:
Happy to see crimped butt connectors and proper grounding to the case which I confirmed using my multimeter.
Likewise, the soldering of the speaker terminals was fine:
There were a few solder balls on the bottom of the case which would have been nice to have been cleaned/blown off.
Overall, this is well above what an average DIY person without substantial electronics assembly can do.
The close proximity of the XLR input connectors to the mains input is likely responsible for some of the bleed. Nothing could be done in a case this small though.
Overall, it is a fine assembly job.