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Maxon 9-Series VOP-9 Vintage Overdrive Pro Pedal  (Open Box)
Ships Internationally
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Product# 150275

The VOP-9 Vintage Overdrive Pro Pedal is an updated version of Maxon OD820. This combination clean booster/overdrive features switchable 9 or 18 volt operation using an internal voltage doubler. The VOP-9 Pedal reacts precisely to picking dynamics and also features true bypass switching.

Since their introduction in the early 1980's, Maxon 9-Series effect pedal designs have achieved a legendary, almost mythical status with pedal connoisseurs around the globe. The reasons for this are simple--superior sound quality and innovative features that offer a seamless interface between performer and performance--nothing more, nothing less. 20 years later this rule still holds true. Now available with improved circuitry including true-bypass switching, Maxon 9-Series effects remain the standard by which all others are judged. Experience the power of nine--Maxon 9-Series effects pedals.

  • Switchable 9V or 18V operation
  • Reacts to picking dynamics
  • True-bypass

Review Snapshot

by PowerReviews
Maxon9-Series VOP-9 Vintage Overdrive Pro Pedal

(based on 5 reviews)

Ratings Distribution

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Reviewed by 5 customers

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(5 of 5 customers found this review helpful)



By 100927648

from Tampa, Fl

Comments about Maxon 9-Series VOP-9 Vintage Overdrive Pro Pedal:

I was first turned on to this pedal when I heard Dave Weiner talk about it and I had to at least try it out. For some reason, people love using weird adjectives to describe sounds. I totally get it, but sometimes the comparisons just don't make sense. I had previously owned the ts808 reissue and loved it but I eventually was bothered by my low end getting chopped off. The vop9 is more versatile in the sense that you can use it as clean boost (a great one) or just crank that drive for tons of sustain and saturation. It is built like a tank and can be switched to 18v while running on a 9v power adapter. The bottom line is that it can sound just like a tube screamer if that is what you love....excpet your low end is retained and it has more features.

(4 of 4 customers found this review helpful)


Great Lead tone!

By Superfuzzfacebigmuff

from BFE Texas

See all my reviews

Comments about Maxon 9-Series VOP-9 Vintage Overdrive Pro Pedal:

I have tried/used/own 90% of the dirt boxes made and vop9 is one of the best. Switch to 18v, turn the level all the way up, the tone to 7:00, and the dirt to your sweet and you have a super fat lead tone that is close to a tube driver but with out the noise and size. I didn't like it at first, I went back to it before I sold it and tweaked with it for a while...then it crushed all of the boutique and modified dirt boxes I own.

(2 of 2 customers found this review helpful)


Worth Every Penny!

By EdwardT

from Chicago, IL.

About Me Experienced

Verified Buyer


  • Excellent Sound Quality
  • Responsive


    Best Uses

    • Performances
    • Professional Recording

    Comments about Maxon 9-Series VOP-9 Vintage Overdrive Pro Pedal:

    I have been looking for additional "Flavor" to add to my Mesa Mk.V rig. I'm in a cover band that does a wide range of styles. The color I can add to any of my patches is amazing. Nice warmth to clean, extra clarity to Crunch, and shimmering depth to over-drive. I read an earlier review that said it worked well with a Mk.V-they were right, it lets it sing even more! I basically just plugged it in, moved the knobs twice, and couldn't be happier!

    (2 of 2 customers found this review helpful)


    Just what I needed

    By Alan Woratschek

    from Las Vegas

    Comments about Maxon 9-Series VOP-9 Vintage Overdrive Pro Pedal:

    Much like the other reviewer, I stumbled across the Dave Weiner video. I was having a hard time finding an overdrive pedal that got along with my Mesa amp. I thought I settled on something but after hearing Daves' demo my overdrive search was back on again. I have owned many flavors of the tubescreamer type drives but none of them quite fit what I had been hoping for. I took a chance and ordered this pedal, and from the moment I plugged it in and switched on my amp, I knew that this was it. This pedal allows the natural sound of you amp to come through and has virtually little tone coloration. I use it as an additional channel through the clean channel, as well as enhancing the crunch channel. It works with my rig and I hope it will work with yours as well. If you invison a tubesceamer pedal with great crunch, harmonics, deep low end, and great headroom, look no further than the Maxon lineup


    Good Product & Good Price

    By kate

    from michigan

    Verified Buyer

    Comments about Maxon 9-Series VOP-9 Vintage Overdrive Pro Pedal:

    Purchased for my son's birthday and he really likes it.

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