The Vox Valvenergy Smooth Impact is a Vox compressor pedal, currently around $143.92. Close alternatives include the Donner Lax Comp and the Keeley Classic Keeley Compressor. It pairs well with the Mesa Boogie Mark I and the Mesa Boogie Mark Five:25 1x12 Combo.
Vox Valvenergy Smooth Impact
Vox · pedal
The Vox Valvenergy Smooth Impact is a Nutube-based optical compressor pedal from Vox (Korg Japan), using the Korg/Vox Nutube dual-triode vacuum tube to impart natural tube harmonic character into the compression circuit. The Smooth Impact delivers transparent optical compression with Nutube-driven tube warmth, Attack, Sustain, and Level controls for dynamic control with organic analog character.
What stands out
“Strengths: Nutube dual-triode vacuum tube circuit provides genuine tube harmonic character in an optical compressor — delivers warmth and presence beyond what solid-state optical compressors achieve”
— from the reviews
“The Vox Valvenergy Smooth Impact is a Nutube-based optical compressor pedal from Vox (Korg Japan), using the Korg/Vox Nutube dual-triode vacuum tube to impart natural tube harmonic character into the compression circuit”
— from the listing
“The Smooth Impact delivers transparent optical compression with Nutube-driven tube warmth, Attack, Sustain, and Level controls for dynamic control with organic analog character”
— from the listing
“The Smooth Impact is praised by players who want optical compression character with the additional harmonic warmth and presence of real tube circuitry”
— from the community notes
“Limitations: Nutube requires higher current draw than typical MOSFET compressors; battery life is”
— from the reviews
Trade-offs
“In the signal chain compression sits first before drive”
— from the community notes
- compressor
- optical
- tube
- harmonic
- optical compression
- solid state
- warmth
- presence
Price updated Oct 24, 2026
Genres the Vox Valvenergy Smooth Impact is commonly used in
- Country
cited
Inferred from shared tonal signals, not a stated genre tag. - Alternative
cited
Inferred from shared tonal signals, not a stated genre tag. - Blues
cited
Inferred from shared tonal signals, not a stated genre tag.
Amps that pair well with the Vox Valvenergy Smooth Impact
Mesa Boogie Mark I
Mesa Boogie
18% matchfills a frequency gapFills in a frequency range the other side doesn't cover, instead of piling more onto what's already there. (transparent → mid-forward)
What Mesa Boogie Mark I brings here leans toward high gain — that's worth building a pairing around
Comes later in the signal chain
Mesa Boogie Mark Five:25 1x12 Combo
Mesa Boogie
18% matchMesa Boogie Mark Five:25 1x12 Combo's own transparent character is the real reason this is worth trying
Comes later in the signal chain
Synergy SL2 Module
Synergy
tonal matchComes later in the signal chain
Synergy SL2 Module goes after Vox Valvenergy Smooth Impact in the chain
Mesa/Boogie JP-2C John Petrucci Signature 60/100-Watt
Mesa Boogie
tonal matchComes later in the signal chain
Put Mesa/Boogie JP-2C John Petrucci Signature 60/100-Watt after Vox Valvenergy Smooth Impact
Egnater Tweaker 88 Head
Egnater
tonal matchComes later in the signal chain
Put Egnater Tweaker 88 Head after Vox Valvenergy Smooth Impact
Marshall Vintage Modern 2466
Marshall
tonal matchComes later in the signal chain
Put Marshall Vintage Modern 2466 after Vox Valvenergy Smooth Impact
Ceriatone 2202H
Ceriatone
tonal matchComes later in the signal chain
Ceriatone 2202H goes after Vox Valvenergy Smooth Impact in the chain
Blackstar HT Club 50 MKII
Blackstar
tonal matchComes later in the signal chain
Put Blackstar HT Club 50 MKII after Vox Valvenergy Smooth Impact
Pedals that stack with the Vox Valvenergy Smooth Impact
Boss OD-1 Overdrive
Boss
19% matchBoss OD-1 Overdrive leans toward smooth, and that's a real, usable character to pair with
Comes later in the signal chain
EarthQuaker Devices Hizumitas
EarthQuaker Devices
16% matchWhat EarthQuaker Devices Hizumitas brings here leans toward fuzzy — that's worth building a pairing around
Comes later in the signal chain
Electro-Harmonix Nano Memory Toy
Electro-Harmonix
8% 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 Electro-Harmonix Nano Memory Toy after Vox Valvenergy Smooth Impact in the signal chain, where it won't crowd Vox Valvenergy Smooth Impact — goes in the amp's FX loop (or last, into a clean amp)
Comes later in the signal chain
TC Electronic Echobrain Analog Delay Effetto Delay A
TC Electronic
8% matchsits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor.
TC Electronic Echobrain Analog Delay Effetto Delay A's warm voice goes after Vox Valvenergy Smooth Impact in the signal chain — it's not there to compete with Vox Valvenergy Smooth Impact's own harmonically rich character — goes in the amp's FX loop (or last, into a clean amp)
Comes later in the signal chain
Donner Big Mouth Distortion
Donner
tonal matchComes later in the signal chain
Donner Big Mouth Distortion goes after Vox Valvenergy Smooth Impact in the chain
Demon FX Gladiator Double Preamp Just
Demon Fx
tonal matchComes later in the signal chain
Demon FX Gladiator Double Preamp Just goes after Vox Valvenergy Smooth Impact in the chain
Dr. Scientist Frazz Dazzler V2
Dr Scientist
tonal matchComes later in the signal chain
Dr. Scientist Frazz Dazzler V2 goes after Vox Valvenergy Smooth Impact in the chain
Warm Audio Jet Phaser
Warm Audio
tonal matchComes later in the signal chain
Warm Audio Jet Phaser goes after Vox Valvenergy Smooth Impact — modulation reads clearest once the core tone is set
Cheaper alternatives
Electro-Harmonix White Finger
Electro-Harmonix
68% similarityShared character: level controls, dynamic control, compressor
Greer Lamplighter Optical Compressor
Greer
57% similarityShared character: dynamic control, compressor, natural
CNZ Audio SCP-20
Cnz Audio
55% similarityShared character: compressor, sustain, attack
J. Rockett Jrad Squeegee Compressor
J Rockett
54% similarityShared character: compressor, attack, natural
Carl Martin Classic Opto-Compressor
Carl Martin
53% similarityShared character: dynamic control, compressor, attack
Albuquerque's Flat line compressor
Albuquerque S
52% similarityShared character: compressor, sustain, transparent
Boutique & premium upgrades
Strymon Compadre Dual Voice Compressor
Strymon
54% similarityShared character: compressor, transparent, smooth
Keeley GC-2
Keeley
93% similaritysimilar tone character
DryBell Module 4
Drybell
93% similaritysimilar tone character
Walrus Audio Highpoint
Walrus Audio
92% similaritysimilar tone character
ThorpyFX The fat general
ThorpyFX
92% similaritysimilar tone character
Similar charactersee all similar tone character →
Donner Lax Comp
Donner
57% similarityShared character: compressor, attack, warm
Keeley Classic Keeley Compressor
Keeley
57% similarityShared character: compressor, sustain, attack
Mooer Dyna Compressor
Mooer
56% similarityShared character: compressor, sustain, attack
Demeter Compulator
Demeter
56% similarityShared character: compressor, attack, natural
EarthQuaker Devices The Warden
EarthQuaker Devices
54% similarityShared character: compressor, attack, natural
AZOR AP-305 Compressor
Azor
53% similarityShared character: compressor, sustain, attack
See all alternatives to the Vox Valvenergy Smooth Impact (cheaper + boutique) →
Questions people ask
What are good alternatives to the Vox Valvenergy Smooth Impact?+
The closest matches in character are the Donner Lax Comp, the Keeley Classic Keeley Compressor, the Mooer Dyna Compressor. Budget picks: Electro-Harmonix White Finger, Greer Lamplighter Optical Compressor, CNZ Audio SCP-20. Boutique upgrades: Strymon Compadre Dual Voice Compressor, Keeley GC-2, DryBell Module 4.
What pairs well with the Vox Valvenergy Smooth Impact?+
Strong matches from rig and tone-complementarity evidence: Mesa Boogie Mark I, Mesa Boogie Mark Five:25 1x12 Combo, Synergy SL2 Module — What Mesa Boogie Mark I brings here leans toward high gain — that's worth building a pairing around.
How much does the Vox Valvenergy Smooth Impact cost?+
Around $143.92 (live listing price, updated Oct 24, 2026).