Why separate the PSU and distribution unit?
At one point, all computers were stationary. Then, someone came up with the idea to separate the computer from the power supply (PSU), which made the first laptop possible.
When we considered how to minimize the space required on a board for power distribution, we adopted a similar approach and separated the PSU from the distribution unit. It made it possible for those who want a neat setup to just put the distribution hub on the board. At the same time, the PSU can easily fit between the joists beneath a Pedaltrain board (or a similar one), if preferred.
The separation also made it possible to feed RUNSTEN with all the power we wanted without adding mass to the unit that must be on the pedalboard.
Why is there a need for almost 1A per output?
Most multi-power supplies provide up to 500 mA per output, so why is the Runsten made with up to 1A per output? The reason is simple, since the EBS MicroBass 3, the Stanley Clarke Signature Acoustic preamp, and the Valve Drive DI all need at least 700 mA to operate correctly. This is due to the non-compromised signal level they operate with. The Runsten is the most convenient solution to prevent the need for a dedicated extra power supply whenever one of these units is on your pedalboard.
More benefits with powerful and isolated outputs
A bonus effect is that by using the included adaptor (DC1-48 90/0 PAR) to connect two outputs in parallel, the Runsten can handle many, even more current-thirsty units as well.
Since the outputs are isolated, you can, in fact, use another included adaptor (DC1-48 90/0 SER) to double the voltage as well, by connecting two outputs in serial.
If connecting several outputs for any of these purposes, remember to use the same voltage setting for these outputs, either both in 9V or both in 12V.
The Runsten also comes with adaptors to change the polarity from center minus to center positive, or to go from a 2.1 to a 2.5 mm contact.
All adaptors are sold separately, in case you need more than one.