Truetone 1 Spot Pro CS12 12-Output Isolated Power Supply

1 Spot Pro Story

 “A lot of people over the years had told us that we should make a power brick. Even some of my own staff urged me to do it, but I didn’t want to for two reasons. First, I knew the 1 SPOT could power just about every pedal out there, so I didn’t see the need. Second, I didn’t want to make just another knock-off of someone else’s power brick. If we were going to make one, we were going to do it our way and have features that nobody else could offer. As pedal designs changed and it became more common for digital pedals to require isolation and for others to need something other than 9Vdc, I finally saw a reason for us to design a power brick.”

“It took 3 years and lots of experimentation, but we were finally able to design a 1 SPOT Pro, using our own proprietary technology to give musicians all the features they need for today’s pedalboards. The original 1 SPOT still works great for most musicians, but for those who need more power and versatility, the 1 SPOT Pro fills the need perfectly.” - Bob Weil

1 Spot Technology

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 triple filtered 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 to satisfy certification agencies (yes, we actually certified these, unlike most companies), 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. That total current rating is roughly double the current load of the most common power brick, for a lot less money.

Multiple Voltages

We recognize that not all guitar pedals run off 9V. That’s why all 1 SPOT Pro models have outputs that can put out 9Vdc, 12Vdc or 18Vdc. The CS12 even has a variable voltage output for old-style fuzz pedals, and a 9Vac output for certain Line6 and Digitech pedals. 

Worldwide Voltage Input

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 CS6 and CS7, don’t care what the input voltage is.

Rugged Steel Housing

If you’re a touring musician, or even if you just play at the local pub regularly, you know how important it is to have roadworthy gear. No worries with the 1 SPOT Pro. The housing is all steel, with cleverly designed vents that should keep out the accidental beer spill, should that ever happen.

Pure Isolation

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.

Energy Efficient

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.

SPECS
Cables

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!

9V AC Output

Another 1 SPOT Pro first. In the past, if you had a Line 6 or Digitech pedal that required 9VAC (not DC), you had to use their power supply and an extension cord or maybe a courtesy outlet on your power brick, if you could get to it. We put a 9VAC output right on the front panel of the CS12, so you can ditch the big wall-wart and keep things neat and simple. We did have to use a small toroidal transformer for this, as it’s not really feasible to create AC voltage with a switching power supply, but that small toroid is dedicated to just that one output… completely isolated.

Available Output Voltages

Outputs 1-2: 18VDC (100mA)
Outputs 3-6: 9VDC or 12VDC (100mA)
Output 7: 9VDC or variable 4-9VDC (100mA)
Outputs 8-9: 9VDC (250mA)
Outputs 10-11: 9VDC (500mA)
Output 12: 9VAC (800mA) - Be careful with this one! It is only for pedals that can handle AC voltage. If your pedal can use a battery, do NOT use this output!

Pedaltrain Mounting Brackets

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!