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Well regarded Hypex NCore NC400 power amplifier on offer was built by me with great care and attention to details, as I’m quite versatile with DIY audio and electronics in general. It’s based on dual NC400 modules with high quality shared Hypex SMPS1200A400 PSU for optimal performance. Please note that overall sonic performance is absolutely not affected when using the single more powerful PSU (compared to dual SMPS600 PSU builds around) and for some it's even sonically beneficial. Additionally, single PSU sharing allows more flexibility when compact enclosures are considered. Enclosure is quite compact, sturdy (with minimal resonance) complemented with rather nice visual outlay. It was sourced from Ghent Audio . Adjustable front blue led brightness (including off state) is a nice touch. Overall (external) amp dimensions are D28cm (excluding binding posts) W20cm and H7.8mm. It’s really an amp powerhouse (200W @ 8Ω / 400W @ 4Ω / 580W @ 8Ω) in really small form factor package! Specific information about this particular build: - Cardas quad eutectic solder throughout on most important joints (I’m not huge crimping fan!) with heat shrink sleeving.That includes XLR ports, speaker binding ports and NC400 module speaker connection torx spades. - High quality Neutrik XLR connections and CMC USA speaker binding posts - Carefully routed twisted cabling and reasonable care was taken so that power and signal routes are not crossed. Also, IEC power cable (routed to SMPS1200A400) is shielded with aluminium foil and heat shrink sleeved. - Hypex branded balanced XLR cable with custom ground wiring all the way to the enclosure ground point ... as per Hypex (recommended) guidelines. Silicone sealant was used on XLR connector pins to improve mechanical robustness (as XLR conductors are quite fragile). - Speakerflex 250 pure cooper speaker binding post cable - Hypex power routing PCB (40EUR RRP) for optimal connection between SMPS1200A400 and 2xNC400. Actual power routing PCB is elevated with the high standoff attached to PSU mounting point and with adequate clearance between the NC400 module itself. - Good quality ferrite cores fitted on the relevant power input points (PSU and NC400 modules) - Improved NC400 module speaker cable connection method, as pictured, with torx screws and soldered end-points. - Use of high quality Artic Silver thermal paste on the both NC400 And SMPS1200A400 mounting metal plates, so that surface2surface contact with the enclosure is improved. In effect, this is turning the enclosure into the huge heatsink In general, SMPS12400A400 PSU is just few months old only and NC400 modules are the latest batch (with black caps as pictured). Hypex will happily service any of the amplification module or PSU in unlikely event that something goes wrong ... and I will provide the purchase invoice on request if needed. It's really nicely built NC400 sample with high quality components throughout and I would expect really long service life. It's fantastic value for money and excellent opportunity for anyone on the DIY fence to own this fantastic amps! Let me know if you have any further questions & thanks for reading! £1050 UK shipped. For internationally delivery and arrangements please get in touch!