Maxon ST-9 Pro+ Supertube

$203.00 to $259.97 Price Tier: High-end

5.0 (4)

Find out who is using Maxon ST-9 Pro+

7 wishlisted

15 saved

Page last updated Jul 04, 2026

Pricing and availability

We compare 600+ stores and found this item at 5 stores. Prices updated July 4, 2026.

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Reviews

Price

5.0 (1)

$239.00

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4.6 (32)

$239.00

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5.0 (13)

$259.97 2 available New

$143.30 4 available Used

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4.9 (39)

$203.00

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£169.00

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Average Price: $217

High-end/Boutique

$50

$176+

Price Tier

In the Overdrive Effects Pedals category, Maxon ST-9 Pro+ Supertube is priced in the High-end/Boutique range. This premium gear is built to very high standards and offers premium features.

Budget

Standard

High-end

Price History

Based on price data from 2 merchants for "Maxon ST-9 Pro+ Supertube". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.

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Description

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Step into the realm of legendary overdrive with the Maxon ST-9 Pro+ Supertube, a pedal that pays homage to the iconic 808 circuit while offering modern enhancements for today's guitarists. This pedal draws inspiration from Maxon's historic OD-9 and OD808, yet pushes the boundaries with a hotter sound and versatile tonal options. The Mid Enhance knob, akin to a presence control, allows you to sculpt your midrange punch, enhancing gain and perceived volume with precision. Whether you're craving that classic 808 midrange bite or looking to fill the sonic space with robust low-end, the ST-9 Pro+ delivers.

The Low Boost switch is a game-changer, transforming the pedal's voice by adding a rich, full-bodied low end. This feature is perfect for those who seek a saturated, wall-of-sound experience, capable of both modern and vintage tones. With the option to switch between 9V and 18V operation, you can achieve increased headroom and dynamic range, adapting the ST-9 Pro+ to any performance scenario. The rugged construction, true bypass switching, and intuitive controls—Drive, Level, Tone, Mid Enhance, and Low Boost—make this pedal a reliable and essential addition to your setup.

Key Features:

Based on the legendary 808 circuit with modern enhancements
Drive, Level, Tone, Mid Enhance, and Low Boost controls
Switchable 9V/18V operation for increased headroom
True bypass switching
Heavy-duty metal enclosure

Product specs

Pedal Type	Boost
Analog/Digital	Analog
Inputs	1 x 1/4"
Outputs	1 x 1/4"
Bypass Switching	True Bypass
Power Source	9-18V DC power supply (sold separately)
Power Usage	12mA (9V DC), 36mA (18V DC)
Batteries	1 x 9V
Height	2.12"
Width	2.91"
Depth	4.88"
Weight	1.34 lbs.

FAQs

What type of power supply does the Maxon ST-9 Pro+ Supertube require?: The Maxon ST-9 Pro+ Supertube requires a 9-18V DC power supply, which is sold separately. It can also operate with a 9V battery.
Does the Maxon ST-9 Pro+ Supertube have true bypass switching?: Yes, the Maxon ST-9 Pro+ Supertube features true bypass switching, ensuring your guitar signal remains unaffected when the pedal is not engaged.
Can the Maxon ST-9 Pro+ Supertube be used with a bass guitar?: Yes, the Maxon ST-9 Pro+ Supertube can be used with a bass guitar, offering enhanced tonal versatility and dynamic overdrive suitable for bass frequencies.
What distinguishes the Maxon ST-9 Pro+ Supertube from other overdrive pedals?: The Maxon ST-9 Pro+ Supertube offers a unique combination of analog circuitry and a selectable midrange frequency boost, providing a wide range of tonal options and enhanced control over your sound.
Is the Maxon ST-9 Pro+ Supertube suitable for high-gain applications?: The Maxon ST-9 Pro+ Supertube is designed for versatile overdrive tones, ranging from subtle boosts to more aggressive distortion, making it suitable for a variety of gain settings, though it may not replace a dedicated high-gain pedal.

Videos

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Reviews

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PROS

Produces heavy, face-melting tones, versatile for genres from metal to blues
Unique mid enhance knob allows for precise mid-frequency shaping
Low boost provides extra "oomph" for rhythm and lead parts
Quality, heavy-duty casing ensures durability
Offers significant volume boost, with both 18V and 9V modes for dynamic play
Tightens amp's distortion, emphasizing the right mids without muddiness
Overdrive provides detailed sound with large tweakability range

CONS

May sound a bit muddy or less transparent with certain setups
Low boost deemed unnecessary by some for metal tones
Could benefit from a built-in noise gate for modern applications

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Maxon ST-9 Pro+ Supertube.

Features and functionality

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The Maxon ST-9 Pro+ offers a low boost switch to enhance bottom end, making it ideal for high gain metal and hardcore styles.
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The Maxon ST-9 Pro+ can be run at 18V for increased headroom, enhancing its performance with high-gain setups.
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Use cases and applications

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With a Les Paul equipped with an SD '59/Custom Hybrid pickup and a 6505 amp, the pedal provides a thick, punchy sound that cuts through the mix.
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The pedal is praised for its synergy with modded JCA100 amps, delivering powerful overdrive tones suitable for aggressive music genres.
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Owners recommend using the pedal as a dirty boost to tighten distortion pedals or directly into an edge-of-breakup amp.
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For single coil pickups, users switch on the low boost feature, while it remains off for humbucking guitars.
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For death metal, placing the Maxon ST-9 Pro+ in front of a high-gain amp tightens bass, ideal for genres like Sunami or Cannibal Corpse.
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Comparisons

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Unlike the EHX East River Drive, the Maxon ST-9 Pro+ is noted for its unique ability to control mids, offering distinct tonal flexibility.
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The Maxon ST-9 Pro+ merges features of the TS9 and TS808, offering enhanced control over mids/lows and more gain than the TS9DX.
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Maxon originally designed the Tube Screamer, with Ibanez later producing copies; thus, Maxon ST-9 Pro+ is not a clone but an evolution of the design.
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User experience

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Owners highlight the pedal's effectiveness for live performances, emphasizing its ability to maintain clarity and impact in a mix.
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A user describes their preferred settings: drive at 11 o'clock, mid enhance at 1 o'clock, level at unity, and tone cranked to 3 o'clock for consistent performance.
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Value and pricing

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Some owners have recently found the pedal priced at $140, a significant drop from its usual $240 price point.
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Setup and maintenance

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To achieve a desirable "chug," combine the Maxon ST-9 Pro+ with a Peavey VK100 and a 100-watt 4x12 cab, ensuring quality speakers and pickups.
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