Like that legendary tone, this pedal produces intense drive while retaining high definition. The pedal also includes a built-in reverb circuit to add ambiance and depth to your sound.

“1”’s gain ranges from medium to very heavy distortion. The amount can be easily controlled via the volume control on your guitar. (Input impedance is set to facilitate this, and is somewhat negated if a buffer or buffered effect is used ahead of “1”.) The Brown knob controls the amount and harmonic overtones of the distortion. Getting the exact tonal quality is the key to this legendary sound and “1”’s Brown and Presence controls help it appropriately interface with a wide variety of pickups and amplifiers.

Official Product Video

Demo by EytschPi42

Product Page

Review by AMAZONA

Review by PerformerMAG

Manual

Demo by Al Estrada

"The Blueberry Overdrive from Mad Professor offers a wide range of tones within quite a narrow part of the overall drive category. We’re talking about overdrive here, not clean boost, distortion or fuzz. Overdrive, baby!

Versatility is high and low at the same time in this case – low in the sense that it basically does one thing, and one thing alone. That said, the tonal possibilities within that limited range of ‘just’ overdrive, are quite amazing. And while you may argue that it is nothing but transparent and also adds compression that you can’t really control other than with playing dynamics, I find the drive both musical and pleasant when you find just the right setting which is relatively easy."

Review by tagboardeffects

Review by Talk Bass.com

Demo by GuitarSpotGr

Manual download

Blueberry Bass Overdrive

The Golden Cello pedal delivers a huge singing overdrive tone, with high-quality tape echo type delay. To get this kind of tone anywhere else would cost you thousands of dollars and hours of knob twisting.

Just plug your Golden cello into your clean amplifier, and you’ll experience, mountainous, juicy lead tone at any volume level that only takes up one space on your pedal board. Sonic perfection is now in your hands and at your feet. 

Demo by Alberto Barrero

Review by reddit /Guitar

Review by The Gear Page

Review by bonedo

Golden Cello

Simble Predriver is not just a preamp, it is a preamp/booster/compressor/upper harmonic enhancer

 This musical tonal combination is totally adjustable with your picking attack and guitar volume pot. The amount of boost depends on the input signal level and HOT/COOL switch position. The maximum is about +10dB on lower level notes and average is about +6dB.

Simble Predriver’s special circuitry uses low noise transistor with high input impedance (over 2 Mohm) so you can boost even piezo pickups without tone loss. The output impedance is 50 Kohm so it works even in front of fuzz pedals. The power consumption is very small if you remove the input jack when not playing you can use the pedal with a 9V battery for few years!

Demo by thejay

Review by the Fretboard

Review by reddit /guitarpedals

Review by musicradar

Simble Predriver

Deep Blue Delay is a natural sounding digital/analog delay, with the analog direct signal path. The Deep Blue Delay has about the same bandwidth as the classic tape echo units, and it can be used in front of an amplifier or in amplifier effects loops.

Demo by Sound Xperience

Demo by Wall of Sound

Deep Blue Delay

Deep Blue Delay by Mad Professor

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Deep Blue Delay

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Mad Professor

1

Mad Professor

Blueberry Bass Overdrive

Mad Professor

Golden Cello

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Simble Predriver

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