Build Quality
As we already know the Phanteks AMP 750 features a single 120mm fan design like many other offerings on the market that has come to be the preferred standard for quiet cooling environments due to the ability to move a larger volume of air at slower speeds than a smaller diameter fan. While great for quiet computing environments the key criteria in our evaluation is whether or not the cooling solution is sufficient, not necessarily it’s sound level or form factor.
External Build Quality
The exterior of the Phanteks AMP 750 has a very simple design going for it today. The layout is traditional for a fully modular unit with an overhead fan in the ATX12v/EPS form factor. Cosmetically, the unit carries the Phanteks AMP branding in a mixture of white text and grey/silver accents. The branding is nice enough, but it certainly is not top tier or “wow” kind of quality. That said, this is not a top tier unit so that fits. The modular interface is well labeled in the manner we see from many Seasonic OEM units. Rounding things out, the unit has a durable black finish that is slightly textured.
The Phanteks AMP 750 comes in at a total length of ~5.5 inches while the cables come in at a length of ~18″ to 27″ to the first or only connector. Additionally, the cables are a mix of standard wire loom and FlexForce style cables which is excellent as the unit is fully modular.
Internal Build Quality
Once we open the top of the Phanteks AMP 750 we see a unit built on the Seasonic FOCUS platform. The topology is full-bridge resonant LLC primary with a synchronous rectification secondary and DC-DC VRM’s for the minor rails. The fan cooling this unit today is a FDB fan from Hong Hua rated at 0.58A at 12v and it is paired with one large heatsink and two very small heatsinks on the primary side along with two small heatsinks on the secondary side. Lastly, the soldering is excellent.
The AMP 750 input filtering begins upon the housing itself where we find a PCB with some X capacitors and Y capacitors. The balance of the input filtering is found on the back edge of the main PCB. There are then a pair of bridge rectifiers next in line attached to a heatsink. The APFC coil is next and it is followed by the APFC power components attached to the only substantial heatsink on the primary side. Speaking of this heatsink, the main input capacitor is right next to it and it is provided by Rubycon with a rating of 400v 560uF 105C. The main switching transistors receive their own heatsinks as well but they are small.
The secondary side of this unit looks a little less crowded than the primary. Through the middle to the edge of the PCB on the secondary side, we find the transformers with the main transformer being all the way to the edge of the PCB. In between these transformers and the DC-DC VRM PCB, we find a pair of small heatsinks. These heatsinks are for cooling the 12v MOSFETS which were visible earlier on the solder side of the PCB. Next to this, we find the DC-DC VRMs housed on their own PCB (populated by FPCAP solid capacitors as well as some oddball Chemi-con’s on the secondary as well) up against the modular PCB and edge of the main PCB. Around these PCB’s, we find a few standard electrolytics provided by Nippon Chemi-con and Nichicon. The modular PCB construction looks very nice and there are more FPCAP solid capacitors here as well as some more Nichicon wet electrolytics. There are also a number of spots that are screened for more capacitors but they are not populated.
Build Quality Summary
Today’s Phanteks AMP 750 is the first power supply we have seen from Phanteks and it starts things off on the right foot. Overall, the build quality looks very nice/excellent and this unit is a bit shorter than average as it uses the Seasonic Focus platform. The exterior is nice enough with some low key, but sufficient, branding to provide the unit with a bit of presence. The cables are a mix of standard wire loom and FlexForce style cables. The integration seems to be very well done and the component selection is excellent as we see Rubycon, Nippon Chemi-con, and Nichicon standard capacitors as well as FPCAP and Chemi-con solid capacitors. We also see a FDB from Hong Hua used in this unit. All in all, the Phanteks AMP 750 is not the most visually striking unit we have seen, but it is also not a top of the line unit. So, for its market position, it looks like Phanteks has done a solid job with selection the FOCUS platform from Sesonic and with their branding of the unit. Let’s move on now to the load tests and see how this unit performs!