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Comparison of Eurorack DIY PSUs (view source)

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A good clean power supply unit (PSU) is the most important part of a modular system. A proper [[Power supply (linear)|linear power supply]] and good distribution makes a big difference to the stability and sound quality of the system.<ref>[https://www.muffwiggler.com/forum/viewtopic.php?p=1470018 Best Eurorack Power Supply (PSU) for your buck?], Muff Wiggler forum, 23 Feb 2014</ref> [[Power supply (switching)|Switch-mode power supplies]] are smaller, lighter, and much more efficient than linear power supplies but produce more noise on their output.<ref>[http://cp.literature.agilent.com/litweb/pdf/5990-3242EN.pdf Understanding the Importance of Low-Noise Linear Power Supplies]</ref> ▼
== Power supplies ==
▲A good clean power supply unit (PSU) is the most important part of a modular system. A proper [[Power supply (linear)|linear power supply]] and good distribution makes a big difference to the stability and sound quality of the system.<ref>[https://www.muffwiggler.com/forum/viewtopic.php?p=1470018 Best Eurorack Power Supply (PSU) for your buck?], Muff Wiggler forum, 23 Feb 2014</ref> [[Power supply (switching)|Switch-mode power supplies]] are smaller, lighter, and much more efficient than linear power supplies but produce more noise on their output.<ref>[http://cp.literature.agilent.com/litweb/pdf/5990-3242EN.pdf Understanding the Importance of Low-Noise Linear Power Supplies]</ref>
 
=== Safety ===
Mains voltages can kill and [[capacitor]]s in disconnected power supplies can still deliver quite a jolt. Unless you're qualified to work with mains electricity, ready made external transformers are safer.
 
{|class="wikitable"
!rowspan="2"|Brand!!rowspan="2"|Model (& web page)!!colspan="3"|Current rating (A)Type!!rowspan="2"|DIY/ReadyVolts built& Amps!!rowspan="2"|Transformer type!!rowspan="2"|Bus!!rowspan="2"|Schematics!!rowspan="2"|Comments!!rowspan="2"|See also
|-
| [[Befaco]]||||||||||linear||||||||||▼
!+12V!!-12V!!+5V
|-
|Clicks&Clocks PSU ||http://clicksclocks.de/tag/psu||linear||+/-12V@1.2A||toroidal mounted on PCB||||||
| [[4MS]]||||||||||Ready made||Switching||||||||
|-
|Dintree D112 Power Supply||http://www.dintree.com/#D112||switching||+/-12V@0.625A, 5V@0.5A||single +12V||integrated, ||Uses ready made VBED15 DC to DC converter||
▲| [[Befaco]]||||||||||||||||||||
|-
|EOWAVE DIY PSU ||http://www.eowave.com/shop/products.php?prod=1309||switching||+/-12V@1.2A||external 15V DC brick||||||
| [[Doepfer]]||[http://www.doepfer.de/a100z_e.htm A-100PSU3]||2||1.2||4||Ready made||Switching, mounted on PCB||Separate A-100 bus||none||Supersedes previous models since 2016||[http://clicksclocks.de/tag/psu Clicks & Clocks]
|-
|Erica Synths ||[http://www.ericasynths.lv/en/shop/diy/diy-kits-1/eurorack-bipolar-12v-psu-kit/ 12V bipolar 1,5A PSU hardware kit] ||linear||+/-12V@1.5A||||||||https://www.muffwiggler.com/forum/viewtopic.php?t=125684&start=all&postdays=0&postorder=asc
| [[MFOS]]||[http://www.musicfromouterspace.com/analogsynth_new/POWERSUPPLY2009/POWERSUPPLY2009.php Adjustable LM317/LM337 1.5A Supply]||||||||||||||||||
|-
|FC Power DIY||http://www.frequencycentral.co.uk/?page_id=894||linear||+/-12V@0.5A, 5V@0.1A||12V AC wall wart||none||PCB only||
| [[MFOS]]||[http://www.musicfromouterspace.com/analogsynth_new/WALLWARTSUPPLY/WALLWARTSUPPLY.php Wall Wart Power Supply]||||||||||||||||||
|-
|L-1 ||[http://l-1.su/Power.html 12V bipolar linear PSU+busboards]||linear||+/-12V@1.5A||||includes 5V regulator||||
| [[Synthrotek]]||[http://www.synthrotek.com/products/modular-circuits/deluxe-power/ Deluxe Power Module]||||||||||||||||||
|-
|MFOS||Adjustable LM317/LM337 1.5A Supply||linear||+/-12V@1.5A||||||||
| Synthrotek||[http://www.synthrotek.com/products/modular-circuits/eurorack-power-distribution-boards/ Eurorack 5A Power Supply]||2.2||1.3||1.5||||||||||||
|-
|MFOS||Wall Wart Power Supply||linear||+12V @1A||||||||
| [[Tiptop Audio]]||[http://www.tiptopaudio.com/zeuspwr.php Zeus]||||||||||External switching brick 15V DC, 4.6A, 2.5mm [[DC jack]]||||||||
|-
|stroh ||[http://synthcube.com/cart/index.php?route=product/product&product_id=590 modular power supply]||||||||||||https://www.muffwiggler.com/forum/viewtopic.php?t=97492&start=all&postdays=0&postorder=asc
| Tiptop Audio||[http://www.tiptopaudio.com/zeusmicro.php μZeus]||||||||||||||||||
|-
|Synthrotek||Deluxe Power Module||linear||||||||||
|-
|Synthrotek||Eurorack 5A Power Supply||linear||+12V@2.2A, -12V@1.3A, +5V@1.5A||||||||
|}
 
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* [https://docs.google.com/spreadsheets/d/17qu-PkyJnjZf9YzhNYy7X7-d-lmZqhahyUW0YM1b2N0/edit#gid=0 The big eurorack PSU list], for a wider comparison both DIY and ready made
 
== References ==
{{Reflist}}<!--
* Primarily [https://docs.google.com/spreadsheets/d/17qu-PkyJnjZf9YzhNYy7X7-d-lmZqhahyUW0YM1b2N0/edit#gid=0 The big eurorack PSU list] curated by Hannes Pasqualini and John Loffink of [http://www.horizontalpitch.com/ Horizontalpitch] with help from community members of the [http://mutable-instruments.net/forum/discussion/5571/power-supply-options/ Mutable Instruments] and [https://www.muffwiggler.com/forum/viewtopic.php?p=1706066 Muff Wiggler] forums.
-->
[[Category:Eurorack]]
[[Category:Power supplies]]
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