Hypex Nilai DIY500 Stereo Modifications

Mark Dawson · 2025-03-25T13:27:11Z

My first modification was installing a second PSU into my Hypex Nilai DIY500 Stereo amp to double the power output into 4 ohms.<br style="box-sizing: border-box; margin-top: 0px; color: #1b1e23; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol'; font-size: 15px;" />I disassembled the amp, drilled 14 new PSU mounting holes and five large holes to fit some metal Temu air vents. The additional PSU is supplied with two amplifier connection cables (not required), a power input cable and a 12 pin auxiliaries cable (J5).<br style="box-sizing: border-box; color: #1b1e23; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol'; font-size: 15px;" />I soldered the power input cable to daisy chain it with the original power input cable.<br style="box-sizing: border-box; color: #1b1e23; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol'; font-size: 15px;" />I also soldered five wires on the 12 pin auxiliaries cable to the original 12 pin cable. This required carefully removing some of the insulation from the original cable, soldering the ends of the new cable onto the original and then insulating with electrical tape. The five wires I connected were:<br style="box-sizing: border-box; color: #1b1e23; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol'; font-size: 15px;" />Pin 2: Ground<br style="box-sizing: border-box; color: #1b1e23; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol'; font-size: 15px;" />Pin 7: Pushbutton+<br style="box-sizing: border-box; color: #1b1e23; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol'; font-size: 15px;" />Pin 8: Pushbutton-<br style="box-sizing: border-box; color: #1b1e23; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol'; font-size: 15px;" />Pin 9: Trigger+/-<br style="box-sizing: border-box; color: #1b1e23; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol'; font-size: 15px;" />Pin 10: Trigger +/-<br style="box-sizing: border-box; color: #1b1e23; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol'; font-size: 15px;" /><span style="color: #1b1e23; font-...

Page 3 / 3 Prev

Stereo Hifi

Last Post by Eric 3 weeks ago

12 Posts

6 Users

0 Reactions

640 Views

RSS

Posts: 1

Eric

May 25, 2025 5:56 pm

(@patreon_78578097)

New Member

Joined: 1 year ago

Nord Acoustics also has some nice build options.

Reply

Page 3 / 3 Prev

Forum Jump:

Previous Topic

Currently viewing this topic 1 guest.