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 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.
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. And if you need to change the voltage of an output, Truetone also makes inexpensive converter cables to help you. There’s the , which does exactly what its name says, and the ... which also does what its name says. They don’t have the most clever names, but they get the job done!
Worldwide input voltage
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.
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.
Prior to the 1 SPOT, musicians either used one linear power supply (a.k.a. wall wart) per pedal, or used batteries. Both solutions for powering pedals were very inefficient with energy, with batteries also contributing greatly to the toxic waste stream. In 2000, we pioneered the use of switching power supply technology to alleviate this condition in an economically-, energy- and environmentally-conservative way. The 1 SPOT power supply was designed to replace many such external power supplies and/or batteries simultaneously. It provided plenty of power with a very low noise level to successfully meet the needs of musicians. By offering musicians a solution that was more cost effective and energy efficient, and moving the market away from linear transformer-based power supplies to switching power supplies, Truetone has caused the saving of thousands of watt-hours per musician per year. Utilizing a more comprehensive switching power supply solution, the 1 SPOT Pro sets a new level of efficiency for power bricks, while still meeting the needs of musicians for low noise operation, even in severe conditions where the pedals themselves may generate interfering noise.
Power cables (all are center pin negative polarity): (2) (5.5x2.1mm barrel plugs; 26” (660mm) – Purple (2) (5.5x2.1mm barrel plugs; 22” (559mm) – Blue (4) (5.5x2.1mm barrel plugs; 18” (457mm) – White (3) (5.5x2.1mm barrel plugs; 12” (305mm) – Yellow (1)(5.5x2.5mm barrel plugs; 21” (533mm) – Red
Converter Plugs: (1) – (5.5x2.1mm barrel input, 5.5x2.5 barrel output; reverse polarity) Green – for Line 6 DL4/M9/etc. and some Eventide pedals. (1) – (5.5x2.1mm barrel input, 5.5x2.1 barrel output; reverse polarity) Red – reverse polarity converter (2) – (5.5x2.1mm barrel input, 3.5mm male output; tip positive) Black – 3.5mm (1/8”) plug converter (1) – (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!
The back panel of the 1 SPOT Pro CS12 has a 2-position 115/230V~ switch that allows the 1 SPOT Pro CS12 to be used in most countries. Warning: Using the unit at the wrong setting will cause damage to both the 1 SPOT Pro CS12, and any effect plugged into output 12. Make sure the switch setting matches the voltage coming out of the wall outlet (+/- 10V~ is OK). This switch only effects the 9VAC output, but it’s important to set it correctly whether you use that output or not… you might want to use it someday.