Specifications

AMP2-T assembly instructions. © 41Hz Audio / www.41hz.com Revision 1.0T boards
If you are not familiar with soldering surface mount components, it is recommended that you do
some test soldering on a separate scrap piece of material. Preferably buy some simpler kit or
components and practice on these.
Tools needed
Assembly of the kits requires the usual set of electronics working tools; soldering iron, wire
cutter etc.
The boards for AMP2 are triple weight, double sided copper. This requires quite a powerful
soldering iron to heat. Especially the components and pads that are connected to the ground
plane require substantial heating. A 50W soldering iron is the very minimum recommended.
Preheating the board to about 100ºC will help a lot.
If the heat slug of the TP2350B chip is to be soldered to the board (typically for AMPs used at
very high power) you will also need access to a solder oven or similar (more about this in
APPENDIX 3). Some information on how to solder SMT components is available on the web
site.
The PCB, a summary
5. Power MOSFETs
7. Right channel
output and output
filters
6. Left channel
output and
output filters
2. MOSFET driver with
current / voltage sensing
4. Power supply rail
1. Analogue input section
3. Gate drive resistors & current sensing