The Meris MR Hedra is a Meris octave pedal. Close alternatives include the Electro-Harmonix Slammi Plus and the Death By Audio Micro Harmonic Transformer. It pairs well with the Port City Merino Head and the Marshall Superlead Guitar Amplifier Head.
Meris MR Hedra
Meris · pedal
The Meris Hedra is a three-voice rhythmic pitch shifter inspired by esteemed studio rack harmonizers like the Eventide Ultra-Harmonizer and Rocktron Intellipitch. It layers three independent pitch voices beneath the dry signal at intervals from two octaves down to two octaves up, with selectable key and scale for diatonic harmonies. It handles Whammy-style drop-tuned octave dives for beefy detuned riffs and wild octave-up leaps with ease, while a glide control moves from hard-tuned modern shifts to natural note transitions and a Micro Tune control adds synth-like detuning to fatten or warp the signal. Four delay configurations build complex, textured harmonized echoes. With MIDI and expression control, it suits adventurous players, though it rewards solid harmonic knowledge.
What stands out
“It layers three independent pitch voices beneath the dry signal at intervals from two octaves down to two octaves up, with selectable key and scale for diatonic harmonies”
— from the listing
“It is used for experimental textures, harmonized leads, and synth-like detuning, sitting in the chain with delay and expression control for expressive playing”
— from the community notes
“It handles Whammy-style drop-tuned octave dives for beefy detuned riffs and wild octave-up leaps with ease, while a glide control moves from hard-tuned modern shifts to natural note transitions and a Micro Tune control adds synth-like detun…”
— from the listing
“The Meris Hedra is a three-voice rhythmic pitch shifter inspired by esteemed studio rack harmonizers like the Eventide Ultra-Harmonizer and Rocktron Intellipitch”
— from the listing
“though it rewards solid harmonic knowledge”
— from the listing
- octave
- delay
- pitch
- studio
- harmonic
- synth
- harmonizer
- midi
Genres the Meris MR Hedra is commonly used in
- Experimental
- Ambient
cited
Inferred from shared tonal signals, not a stated genre tag. - Electronic
cited
Inferred from shared tonal signals, not a stated genre tag. - Post Rock
cited
Inferred from shared tonal signals, not a stated genre tag. - Shoegaze
cited
Inferred from shared tonal signals, not a stated genre tag. - Lo Fi
cited
Inferred from shared tonal signals, not a stated genre tag.
Amps that pair well with the Meris MR Hedra
Port City Merino Head
Port City
30% matchfills a frequency gapFills in a frequency range the other side doesn't cover, instead of piling more onto what's already there. (thin → full)
Port City Merino Head leans toward full, and that's a real, usable character to pair with
Comes later in the signal chain
Marshall Superlead Guitar Amplifier Head
Marshall
28% matchfills a frequency gapFills in a frequency range the other side doesn't cover, instead of piling more onto what's already there. (thin → full)
Marshall Superlead Guitar Amplifier Head's own full character is the real reason this is worth trying
Comes later in the signal chain
Egnater Tourmaster 412B Cabinet
Egnater
tonal matchComes later in the signal chain
Put Egnater Tourmaster 412B Cabinet after Meris MR Hedra
Egnater VN-412A
Egnater
tonal matchComes later in the signal chain
Put Egnater VN-412A after Meris MR Hedra
Fender 000
Fender
tonal matchComes later in the signal chain
Fender 000 goes after Meris MR Hedra in the chain
Fryette Gpdi-IR
Fryette
tonal matchComes later in the signal chain
Put Fryette Gpdi-IR after Meris MR Hedra
Hiwatt Park P50B Super Bass Handwired 50W Bass Head
Hiwatt
tonal matchComes later in the signal chain
Hiwatt Park P50B Super Bass Handwired 50W Bass Head goes after Meris MR Hedra in the chain
Laney Lionheart Tom Quayle Loudpedal
Laney
tonal matchComes later in the signal chain
Put Laney Lionheart Tom Quayle Loudpedal after Meris MR Hedra
Pedals that stack with the Meris MR Hedra
Catalinbread Elements Distortion
Catalinbread
27% matchfills a frequency gapFills in a frequency range the other side doesn't cover, instead of piling more onto what's already there. (thin → full)
Catalinbread Elements Distortion's own full character is the real reason this is worth trying
Comes later in the signal chain
Keeley Super Phat Mod
Keeley
23% matchfills a frequency gapFills in a frequency range the other side doesn't cover, instead of piling more onto what's already there. (thin → full)
What Keeley Super Phat Mod brings here leans toward full — that's worth building a pairing around
Comes later in the signal chain
FoxGear EchoSex
Foxgear
14% matchsits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor.
FoxGear EchoSex's ambient voice goes after Meris MR Hedra in the signal chain — it's not there to compete with Meris MR Hedra's own octave character — goes in the amp's FX loop (or last, into a clean amp)
Comes later in the signal chain
Chandler DDL Delay
Chandler
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.
Keep Meris MR Hedra's octave voice out front: Chandler DDL Delay goes after Meris MR Hedra in the signal chain so its pristine voice doesn't muddy it — goes in the amp's FX loop (or last, into a clean amp)
Comes later in the signal chain
ThorpyFX The fat general
ThorpyFX
tonal matchComes earlier in the signal chain
ThorpyFX The fat general goes in front of Meris MR Hedra in the chain
Orange Bass Butler Bi-Amp Bass Preamp
Orange
tonal matchComes later in the signal chain
Orange Bass Butler Bi-Amp Bass Preamp goes after Meris MR Hedra in the chain
3d Printed Slider Caps
Boss
tonal matchComes later in the signal chain
Put 3d Printed Slider Caps after Meris MR Hedra
AA Audio Rotary 3 toggle Phase, Vibe
Aa Audio
tonal matchComes later in the signal chain
AA Audio Rotary 3 toggle Phase, Vibe goes after Meris MR Hedra in the chain
Alternatives
Electro-Harmonix Slammi Plus
Electro-Harmonix
64% similarityShared character: pitch modulation, whammy, mono synth
Death By Audio Micro Harmonic Transformer
Death By Audio
59% similarityShared character: mono synth, signal, one octave
Meris Hedra Shifter
Meris
59% similarityShared character: pitch modulation, studio
Electro-Harmonix Pitch Fork Plus
Electro-Harmonix
57% similarityShared character: pitch modulation, one octave
Alexander Pedals Fever Pitch
Alexander Pedals
56% similarityShared character: pitch modulation, one octave, delay
TC Electronic Pitchfork
TC Electronic
56% similarityShared character: pitch modulation, one octave
Electro-Harmonix Intelligent Harmony Machine
Electro-Harmonix
56% similarityShared character: pitch modulation, one octave, lead
Boss PS-5 Super Shifter
Boss
55% similarityShared character: pitch modulation, whammy, delay
DigiTech HammerOn
Digitech
54% similarityShared character: pitch modulation, dry signal, one octave
DigiTech Whammy DT
Digitech
52% similarityShared character: whammy, pitch modulation, one octave
T-Rex Quint Machine
T Rex
51% similarityShared character: lead
Boss MO-2
Boss
51% similarityShared character: dry signal, mono synth, one octave
See all alternatives to the Meris MR Hedra (cheaper + boutique) →
Questions people ask
What are good alternatives to the Meris MR Hedra?+
The closest matches in character are the Electro-Harmonix Slammi Plus, the Death By Audio Micro Harmonic Transformer, the Meris Hedra Shifter.
What pairs well with the Meris MR Hedra?+
Strong matches from rig and tone-complementarity evidence: Port City Merino Head, Marshall Superlead Guitar Amplifier Head, Egnater Tourmaster 412B Cabinet — Port City Merino Head leans toward full, and that's a real, usable character to pair with.