SKU: 61364006832

BHP MAYPLEX (Roger Mayer 12AX7 Plexi Preamp)

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Description

BHP MAYPLEX (Roger Mayer 12AX7 Plexi Preamp)BHP Mayplex Profile Pack based on the Roger Mayer 12ax7 Tube Preamp 11 Studio Profiles through EL34 (Fried JEL) power section 9 Studio Profiles through 5881 (Fried DS) power section 10 Direct Profiles Sound Samples: https: youtu. be df3bh8TxomE Super rare ROGER MAYER triple 12AX7 all tube high voltage preamp, only 80 made in the 80s by roger himself, the man who worked on jimi hendrix's effects and amps. These were made in the early to mid 80s. These

BHP Mayplex Profile Pack

based on the Roger Mayer 12ax7 Tube Preamp

11 Studio Profiles through EL34 (Fried JEL) power section

9 Studio Profiles through 5881 (Fried DS) power section

10 Direct Profiles


Sound Samples:

https://youtu.be/df3bh8TxomE

Super rare ROGER MAYER triple 12AX7 all tube high voltage preamp, only 80 made in the 80s by roger himself, the man who worked on jimi hendrix's effects and amps. These were made in the early to mid 80s. These are one of the very first ever rack tube guitar preamps. Contains triple 12AX7 tubes run at vintage amp high voltages, along with 4 transformers (3 power and 1 round output) and is dual channel in the style of vintage marshall plexi/bluesbreaker meets tweed bassman, with special tone tweaks.


Like an old cranked plexi 4 hole type amp. It is not a high gain hotrodded marshall metal style, It is in the classic 60s 70s cranked vintage marshall range. Also takes pedals well for higher gain harder rock when pushed. This pack includes profiles with Klon and Noble overdrives.

Here is a quote I found from Roger in an old interview about these:
"When I started looking into guitar amplifiers and playing with them, I started making for the recording studio an item, a preamp box, that basically had a very similar front end like a classic amplifier," Mayer said, "Because people in the studio wanted to have a direct sound that they could put into the studio desk that had tubes in front of it. This was a three-tube, 12AX7 unit. Basically you had a similar circuit to a good amplifier up to the power tubes, then a nice little transformer output that went into a recording desk." - Roger Mayer

*note from Michael: Strangely 6 of the EL34 profiles show that there is no cab, but the profiles sounded really good, so I decided to include them.


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SKU: 61364006832

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4.5 ★★★★★
Based on 14 reviews
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Venkatesh
Chelsea, US
★★★★★ 5
Great product
Fits perfectly, easy to use, build for value. 3/8 inch drive. Overall made my job easy.
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Reviewed in the United States on December 18, 2025
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Chris Alvarez
Battle Creek, US
★★★★★ 5
2007 BMW Z4
Worked great for taking out oil filter
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Reviewed in the United States on May 20, 2026
M
Verified Purchase
my104
Lowell, US
★★★★★ 5
Great Value...Great Fit....Works Great!
For the money, this is a great value, and if used properly, should last as long as your N55 engine....the construction material may cause it to distort, and may be difficult to separate from the filter assembly, but if this occurs, the cap was installed too tight or it's being installed too tightly...cranking on the plastic oil filter canister lid without disregard to propr torque value will result in needing a new filter canister lid and/or tool.....I'd buy this product and same mfg products....
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Reviewed in the United States on June 29, 2020
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Verified Purchase
Yousif A. Hassan
Chelsea, US
★★★★★ 4
Not a bad oil filter wrench, actually!
Lots of hit or miss reviews here, but for me, it fits like a glove and easily allows me to apply the 25-26 Nm of torque needed to open or close my BMW oil filter cover (2020 M4 but most BMWs use the same type of filter cover). It does get on there pretty tight and might be hard to remove. Solutions: - wait for the engine to cool down a bit, and it will come right off - use a pick tool to loosen it
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Reviewed in the United States on November 25, 2024
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Ben
Boise, US
★★★★★ 5
Great value and Perfect Fit
This little oil filter wrench fit my BMW M340i perfectly and made the job a breeze. It locked onto the cap snugly, with no slipping or wobbling, and let me remove and reinstall with confidence. The material feels sturdy for the price and if you use the proper torque instead of cranking down on the housing, it should last a long time. Highly recommend for DIY oil changes.
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Reviewed in the United States on September 28, 2025

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