The Master Effects Manta Ray 2-Band is a bass preamp pedal that puts the onboard tone circuit of the Music Man Stingray on a pedalboard. The maker describes it as one of "the classic 2-band and 3-band preamps based on the circuits found in the EBMM Stingray basses", built as "faithful reproductions of the original circuits using modern components and manufacturing processes".1
Master Effects says the pedal "delivers the classic tone and punch while keeping noise to a minimum".1 It sits among the maker's bass-oriented designs alongside the Master Effects Super Eight Hundred Plus, the Master Effects Thespian Valve Preamp and the Master Effects Monorail, and it belongs to the wider family of preamp pedals and bass pedals.
Circuit and sound
The 2-Band takes the two-band EQ section of the EBMM Stingray bass preamp and rebuilds it as a standalone pedal. Master Effects states that "these are faithful reproductions of the original circuits using modern components and manufacturing processes", and that the pedal "delivers the classic tone and punch while keeping noise to a minimum".1
A 2-band preamp gives you two bands of EQ, typically bass and treble, rather than the additional midrange control of a 3-band design. Master Effects makes a Manta Ray 3-Band on the same Stingray-derived circuit, priced at $129 USD against the 2-Band's $125 USD.1
Build and switching
The pedal is housed in a 125B die cast aluminum enclosure and uses a professional high quality FR4 PCB. Bypass is handled by Relay True Bypass switching, so the preamp circuit is removed from the signal path when the pedal is off. Each pedal is assembled by hand in Calgary, Alberta, Canada.1
Price and warranty
The 2-Band model is $125 USD, and shipping to the United States and Canada is $20US, according to the maker's product page as of 26 October 2026. Each pedal comes with a 1 year warranty on parts and labor.1
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Questions
Is the Master Effects Manta Ray 2-Band true bypass?
Yes. Master Effects specifies Relay True Bypass switching for the Manta Ray 2-Band, so when the pedal is off, your bass's signal passes through without going through the preamp circuit. Relay switching uses an electronic relay rather than a simple mechanical footswitch contact for the bypass path.
Where is the Master Effects Manta Ray made?
Master Effects assembles each Manta Ray pedal by hand in Calgary, Alberta, Canada, according to the maker's product page. The pedals use 125B die cast aluminum enclosures and a professional high quality FR4 PCB.
Does the Manta Ray 2-Band have a warranty?
Yes. Each pedal comes with a 1 year warranty on parts and labour, according to Master Effects.
What bass is the Manta Ray 2-Band circuit based on?
The Manta Ray preamps are based on the circuits found in the EBMM Stingray basses, the onboard preamps of the Music Man Stingray. Master Effects describes the pedals as faithful reproductions of the original circuits, built with modern components and manufacturing processes.
How much is the Manta Ray 2-Band in US dollars?
The 2-Band model is $125 USD, as listed on the Master Effects product page as of October 2026. The 3-Band version is $129 USD, and shipping to the United States and Canada is listed at $20US.
Sources (1)
- Manta Ray 2 & 3 Band, mastereffects
