The Master Effects Manta Ray 3-band Bass Preamp is a Master Effects preamp pedal, currently around $129. Close alternatives include the Ampeg Classic Analog Bass Preamp pedal and the Ampeg Classic Analog Bass Preamp. It pairs well with the Greer Black Mountain and the Walrus Audio Monument CS.
Master Effects Manta Ray 3-band Bass Preamp
Master Effects · pedal
The Master Effects Manta Ray 3-Band Bass Preamp is a 3-band EQ bass preamp from boutique manufacturer Master Effects, delivering bass, mid, and treble frequency shaping alongside clean preamp gain for comprehensive bass guitar tone control. The 3-band format covers the full bass frequency range for professional tone shaping.
What stands out
“The Master Effects Manta Ray 3-Band delivers comprehensive 3-band bass preamp EQ at boutique quality for bass players who want full bass, mid, and treble tone control from Master Effects”
— from the community notes
“The Master Effects Manta Ray 3-Band Bass Preamp is a 3-band EQ bass preamp from boutique manufacturer Master Effects, delivering bass, mid, and treble frequency shaping alongside clean preamp gain for comprehensive bass guitar tone control”
— from the listing
“Strengths: Comprehensive 3-band EQ (bass, mid, treble) at Master Effects boutique quality for professional bass tone shaping”
— from the reviews
“Its standout strength is the 3-band bass, mid, and treble preamp EQ at Master Effects boutique quality”
— from the community notes
“Use-case wise it suits bass players who want comprehensive 3-band preamp EQ at Master Effects quality”
— from the community notes
- bass
- treble
- mid
- full
- frequency
- eq
- gain
Good for
- Live
- Silent Recording
- Studio
Price updated Oct 23, 2026
Genres the Master Effects Manta Ray 3-band Bass Preamp is commonly used in
- Alternative
cited
Inferred from shared tonal signals, not a stated genre tag. - Gospel
cited
Inferred from shared tonal signals, not a stated genre tag. - Rock
cited
Inferred from shared tonal signals, not a stated genre tag. - Doom Metal
cited
Inferred from shared tonal signals, not a stated genre tag. - Indie Rock
cited
Inferred from shared tonal signals, not a stated genre tag.
Pedals that stack with the Master Effects Manta Ray 3-band Bass Preamp
Greer Black Mountain
Greer
21% matchgain stackingStacks two gain stages for more saturation than either produces alone. (mid-forward → fuzzy)
Put Greer Black Mountain in front and the mid-forward tone leans further toward fuzzy
Comes earlier in the signal chain
Walrus Audio Monument CS
Walrus Audio
20% matchsits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor.
Put Walrus Audio Monument CS after Master Effects Manta Ray 3-band Bass Preamp in the signal chain, clear of Master Effects Manta Ray 3-band Bass Preamp's own gain stage
Comes earlier in the signal chain
EarthQuaker Devices Hoof
EarthQuaker Devices
17% matchfills a frequency gapFills in a frequency range the other side doesn't cover, instead of piling more onto what's already there. (bright → warm)
Run EarthQuaker Devices Hoof after it and the bright edge settles into something more warm
Comes earlier in the signal chain
Ashdown Velvet Compressor
Ashdown
16% matchfills a frequency gapFills in a frequency range the other side doesn't cover, instead of piling more onto what's already there. (bright → smooth)
What Ashdown Velvet Compressor brings here leans toward compressed — that's worth building a pairing around
Comes earlier in the signal chain
Line 6 DL4 Delay Modeler
pedal
12% matchsits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor.
Run Line 6 DL4 Delay Modeler after Master Effects Manta Ray 3-band Bass Preamp in the signal chain, clear of Master Effects Manta Ray 3-band Bass Preamp's own gain stage — goes in the amp's FX loop (or last, into a clean amp)
Comes later in the signal chain
Suhr Discovery
Suhr
12% matchsits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor.
Run Suhr Discovery after Master Effects Manta Ray 3-band Bass Preamp in the signal chain, clear of Master Effects Manta Ray 3-band Bass Preamp's own gain stage — goes in the amp's FX loop (or last, into a clean amp)
Comes later in the signal chain
Caline CP-31 Hot Spice (Black)
Caline
tonal matchComes earlier in the signal chain
Caline CP-31 Hot Spice (Black) goes in front of Master Effects Manta Ray 3-band Bass Preamp — a wah tracks picking dynamics best on the raw signal
Tone City Hot Mama Overdrive
Tone City
tonal matchComes earlier in the signal chain
Tone City Hot Mama Overdrive stacks high gain on top of the mid-forward already here
Cheaper alternatives
Boutique & premium upgrades
Similar character
Ampeg Classic Analog Bass Preamp pedal
Ampeg
57% similarityShared character: treble, middle, gain
Ampeg Classic Analog Bass Preamp
Ampeg
55% similarityShared character: treble, middle, gain
Ashdown Triple Shot
Ashdown
52% similarityShared character: treble, middle, bass
Suhr Thump Bass Preamp
Suhr
50% similarityShared character: treble, middle, bass
Aguilar - OBP-1TK On-Board Bass Preamp
Aguilar
48% similarityShared character: treble, middle, bass
Ashdown James LoMenzo HyperDrive
Ashdown
47% similarityShared character: treble, middle, bass
See all alternatives to the Master Effects Manta Ray 3-band Bass Preamp (cheaper + boutique) →
Questions people ask
What are good alternatives to the Master Effects Manta Ray 3-band Bass Preamp?+
The closest matches in character are the Ampeg Classic Analog Bass Preamp pedal, the Ampeg Classic Analog Bass Preamp, the Ashdown Triple Shot. Budget picks: AnalogWorkshop Jaguar Bass Preamp, Demon FX AG Bass Preamp. Boutique upgrades: Shins Music Shin's Music BMP1 Bass Master Preamp.
What pairs well with the Master Effects Manta Ray 3-band Bass Preamp?+
Strong matches from rig and tone-complementarity evidence: Greer Black Mountain, Walrus Audio Monument CS, EarthQuaker Devices Hoof — Put Greer Black Mountain in front and the mid-forward tone leans further toward fuzzy.
How much does the Master Effects Manta Ray 3-band Bass Preamp cost?+
Around $129 (live listing price, updated Oct 23, 2026).