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Truetone 1-Spot Pro CS12 Power Supply

Brand: Truetone

$339.00 $399.00

2 in stock.

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1 SPOT Technology… what does that mean and why should I care? Technically, it’s switching power supply technology, which is very different than what anyone has ever put inside a power brick. Normally, you would find just a big transformer and a handful of small electronic components inside a power brick… old tech that hasn’t changed in decades and has a lot of limitations. We took the same switching power supply technology found in our famous 1 SPOT and scaled it up to make the 1 SPOT Pro models. With much more space to work with, we were able to completely eliminate noise, provide total electrical isolation between outputs, create multiple voltages, and still give you the ability to use it anywhere in the world.

A major benefit of using a switching power supply is that it can handle far more current (power being pulled out of it) than any transformer-based power supply. Although we had to put power rating labels on each output , the outputs can generally handle far more than the label shows. For example, you can connect a 300mA pedal to a 200mA output, without causing any problems. With a transformer-based power supply, you can’t get away with that. The important thing is to not exceed the total of all the labels. With a CS7, the output labels add up to 1900mA total. That means the total current draw of all your pedals should be less than 1900mA.

While most pedals still run off 9VDC, not all of them do. That’s one of the main reasons why we finally decided to design the 1 SPOT Pro. With the CS7, you get one output for 18VDC and six at 9VDC, with four of those switchable to 12VDC. Need another 18VDC output? No problem… just get a Multi-Plug 2 cable (MC2) and run both pedals off that one outlet… most boosts and drive pedals don’t mind sharing an output anyway. Don’t need the 18VDC output at all? No problem… just get Truetone’s 18V to 9V Converter cable.
With the CS12, you get the same voltage options that the CS7 has, plus a variable 4-9VDC output, and the 9VAC output.


Just like with the original 1 SPOT, and your laptop power supply and phone charger, the 1 SPOT Pro uses switching power supply technology which allows you to use it anywhere in the world. The CS12 has an input voltage switch on the back, which switches voltage only for the 9VAC output, since that output does use a toroidal transformer. The rest of the outputs on the CS12, and all of them on the CS7, don’t care what the input voltage is.

8.12” x 3.37” x 2”  (206 x 86 x 50mm); 2.35 lbs. (1.06 Kg.) - weight and dimensions of power supply only, not including cables or packaging.

Power cables (all are center pin negative polarity):
(2) DC26 (5.5x2.1mm barrel plugs; 26” (660mm) – Purple
(2) DC22 (5.5x2.1mm barrel plugs; 22” (559mm) – Blue
(4) DC18 (5.5x2.1mm barrel plugs; 18” (457mm) – White
(3) DC12 (5.5x2.1mm barrel plugs; 12” (305mm) – Yellow
(1) AC21 (5.5x2.5mm barrel plugs; 21” (533mm) – Red
Converter Plugs:
(1) CL6 – (5.5x2.1mm barrel input, 5.5x2.5 barrel output; reverse polarity)
Green – for Line 6 DL4/M9/etc. and some Eventide pedals.
(1) CYR – (5.5x2.1mm barrel input, 5.5x2.1 barrel output; reverse polarity)
Red – reverse polarity converter
(2) C35 – (5.5x2.1mm barrel input, 3.5mm male output; tip positive)
Black – 3.5mm (1/8”) plug converter
(1) CBAT – (5.5x2.1mm barrel input, Black battery clip output) Connects to battery clip wires inside pedals that do not have DC jacks. Do NOT connect to a battery!

Since pioneering the first switching power supply for musicians, the original 1 SPOT, we’ve gained many years of experience in creating very low noise power for pedals. When we started designing the 1 SPOT Pro, the first multiple output switching power supply, we worried a lot about how to eliminate noise completely. Isolation is part of the solution to noise elimination, but not all of it. Each output is galvanically isolated from the other to help give you pure, clean, noise-free operation of your pedals. However, we also provided an additional layer of pure analog regulation, taking advantage of the greater ability of analog circuits to provide the highest possible suppression of in-band audio noise. There is an artistry involved in these designs, and it’s come at the price of decades of hard work. But all of this put together is what we call Pure Isolation.

The only power brick to include easy-to-install mounting brackets for Pedaltrain pedalboards. We even duplicated the output labels under the unit, so you can easily see which output is which, when working on your board. Yes, we thought of that too!

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