pp2 & micro pog, maxon cp-9 comp, mxr eq

[dubsymmetry]

Hi,

so I recently purchased a voodoo lab pedal power 2 and everything works like a charm, except I have a question regarding the maxon cp-9 compressor & the ehx micro pog.

both units won´t power up except I connect them to the pp2 outlets 5/6 with the 250 mA output.
they won´t power up on the other outlets with the 100mA output, unless I change the jumper setting for 12V output - with this setting, both the micro pog and the maxon comp work with no problems.

I need one 250mA outlet for my dd-20, so I have to power one of the two pedals with 12V - will it hurt them?
It´s strange also because the maxon manual states a power consumption of 25mA/9V ?

another question: the mxr 10-band eq I have works on 18V but it powered up with 9V with no noise, no difference - I guess this is fine?

[SpankyPants]

Be careful, man. I've had pedals blow up from smaller power discrepancies.

One thing to keep in mind is to NEVER allow any pets near this mess. I learned the hard way.

[dubsymmetry]

I forgot to add the maxon bottom plate says to use 9V or 10V power supplies... 2V more will fry it?

[SpankyPants]

Honestly, probably not. I think most 9v pedals are rated up to 12, but don't take my word for it.

[Bryan R. Tyler]

The Micro POG is supposed to be powered at 200mA IIRC (I had to sell mine, so I can't double check), but it might explain why yours runs only on the 250 slots. That's where I kept mine.

[JanusZarate]

Originally Posted by dubsymmetry

both units won´t power up except I connect them to the pp2 outlets 5/6 with the 250 mA output.

Not surprising for the Micro POG - it has a high current requirement. I'd highly recommend using it ONLY on one of the the 250mA outputs.

Originally Posted by dubsymmetry

they won´t power up on the other outlets with the 100mA output, unless I change the jumper setting for 12V output - with this setting, both the micro pog and the maxon comp work with no problems.

I need one 250mA outlet for my dd-20, so I have to power one of the two pedals with 12V - will it hurt them?
It´s strange also because the maxon manual states a power consumption of 25mA/9V ?

That's really odd... but you really shouldn't take a chance with the Micro POG. Keep that on the 9V/250mA output, as I don't know if it can safely take 12VDC. The Maxon, on the other hand, might... but I'd ask someone who owns it before you continue powering it that way, as you don't want to fry it.

Originally Posted by dubsymmetry

another question: the mxr 10-band eq I have works on 18V but it powered up with 9V with no noise, no difference - I guess this is fine?

Hmm... that's odd, too. I'm surprised it just didn't stop running at that voltage.

AFAIK, there isn't any risk with that scenario. Providing less voltage than necessary produces the "dying battery" effect that some fuzz enthusiasts love. With most other pedals, though, they just tend to stop working until you give them enough voltage.

[bongomania]

I don't know about the regular CP-9, but the CP-9 Pro+ does require higher amperage, as it uses a voltage doubler circuit inside.

[dubsymmetry]

Originally Posted by bongomania

I don't know about the regular CP-9, but the CP-9 Pro+ does require higher amperage, as it uses a voltage doubler circuit inside.

my pedal is the CP-9 Pro+ (what an awkward name); I guess by regular CP-9 you meant the other maxon compressor, the cp101?

anyway, as mentioned above, the manual says it consumes 25mA/9V or 23mA/10V so I still don´t understand why it it won´t power up at the pp2 outlet #1 (at 100mA/9V) but will power up & work at 60mA/12.3V

or does something else change with the dip switch on the pedla power2+ I didn´t see yet?

I wrote an e-mail to maxon.. maybe they can shade some light on this.

[bongomania]

By "regular CP-9" I meant the older version, before the Pro+ was released. I never saw the manual for mine, so I didn't know about their stated amperage draw; I just figured the internal voltage doubler would require more mA. I'm mystified.

[Ely]

From what I understand Voodoo Labs makes special cords for the PP2 that will run 200ma pedals. At least, that's what Moog told me would be best for running my Moogerfoogers, which all require 200ma 9v.

[dubsymmetry]

Originally Posted by Ely

From what I understand Voodoo Labs makes special cords for the PP2 that will run 200ma pedals. At least, that's what Moog told me would be best for running my Moogerfoogers, which all require 200ma 9v.

the special cable is needed because moogerfoogers use center positive power connections (the standard ones are center negative as that´s what most manufacturers use).

a quote from the moog manual: " The MF-102 works satisfactorily on +9 to +15 volts DC and uses about 100 milliamperes of current."

mine works great on pp2+ outputs 1-4, dip switch to normal.

[dubsymmetry]

let me tell you, maxon´s customer support is top notch!

I e-mailed them, and yesterday they replied that the "rated DC supply of Maxon CP9Pro+ is 25mA/9V, 23mA as per description of our User's Guide. However, it can be operated at 60mA/DC12.3V. "

then today I got an e-mail with thorough test results with the cp9pro+ and their own pedal power2+, with pics:

"When output #5 and #6 (DIP SW OFF/normal) were connected to CP9Pro+, CP9Pro+ worked fine. As for output #1 - #4, CP9Pro+ did not work even if DIP SW was ON. (The model we tested is for Japanese market. Specifications might be a bit different from that of yours.)

Voodoo Lab Pedal Power 2 plus is not commonly used in Japan. This is our first time to have heard this kind of problem. As we checked into Voodoo Lab Pedal Power 2 plus, we found that its characteristic against inrush current was not good. When we connect Maxon PD2 to any of Voodoo Lab Pedal Power 2 plus's output #1 - #8 and then connect it to CP9Pro+, CP9Pro+ works fine. This is because PD2 was designed considering inrush current. In other words, Voodoo Lab Pedal Power 2 plus was designed without thinking of inrush current."

so, since my cp9pro+ works with output #1 of pp2+ (dip switch on), I am fine and we know the pp2+ is different in japan.

[bongomania]

Cool, interesting info!

[James Hart]

I've yet to find a Maxon pedal I don't dig!

[niftydog]

Originally Posted by dubsymmetry

...Voodoo Lab Pedal Power 2 plus, we found that its characteristic against inrush current was not good... This is because PD2 was designed considering inrush current. In other words, Voodoo Lab Pedal Power 2 plus was designed without thinking of inrush current.

<insert sound of a confused Scooby Doo>

What do you make of this, Bongo? I'm intrigued.

To me this reads like "Climate change is because horse, and apple juice flabbergasts Venetian blinds. Then we connected underpants to the sitar string and found that saucepan works with traffic light. So yeah, carrots!"

And if I am following what dubsymmetry is saying, he got different results to what Maxon got. Is that right?

As for the specs of the PPII being different, well yes, but more than likely it's only to do with the mains input side of things and has nothing to do with the low voltage, DC outputs - I see no reason why they would redesign the entire low voltage portion of the circuit for every different country!

[anyonefortennis]

Given these problems anyone know if the CP9 Pro+ would have the same problem with a fueltank jr?

If that's the case the pedal won't work with the ft jr since there are not dip switches

[dubsymmetry]

an update:

the cp9 pro+ doesn´t work with 12V on pp2+ output 1 anymore. no idea why it worked (it really did) before.

anyway, I´ve added a boss ls-2 and it´s now conected to output 1 of pp2+ (dip switch to normal), and I can power the maxon with the power output of the ls-2.

strange indeed.

[JanusZarate]

Wait, what?!?

That makes no sense. All you did was daisy-chain both the LS-2 and the Maxon to one of the PP2+'s outputs. That shouldn't be any different than simply plugging in the Maxon alone!

Are there ghosts in your wiring?

[TomServoGD]

+1 to all that said to use output 5 or 6 on the PP2. I talked to customer support @ Voodoo Labs about my Micro POG to make sure before I blew mine up as well.

- use output 5 or 6 (provides either 200 or 250 mA)
- leave DIP switch for that power output in NORMAL position
- use standard power cable (NOT red-barrelled cable, these are inverse polarity and will definitely blow up your pedal)

[dannybuoy]

Digital pedals seem to chew a lot more current than analog. Hence the MicroPOG's high mA requirements. Digitech Bass Synth Wah also eats electrons for breakfast!