The Spaceman Delta II Cadet: Harmonic Tremolo is a Spaceman tremolo pedal, currently around $129. Close alternatives include the JHS Pedals JHS Tidewater Mini and the Walrus Audio Monument CS. It pairs well with the Dumble Steel String Singer and the Marshall JTM45 45W Tube Guitar Amp Head.
Spaceman Delta II Cadet: Harmonic Tremolo
Spaceman · pedal
The Spaceman Delta II Cadet is a harmonic tremolo pedal from Spaceman Effects (Portland, Oregon), delivering the dimensional, swirling harmonic tremolo effect by splitting the signal into bass and treble bands and modulating them out of phase. The Delta II provides the rich, three-dimensional tremolo character of vintage harmonic tremolo found in classic Brownface Fender amplifiers at Spaceman handcrafted boutique quality.
What stands out
“The Delta II provides the rich, three-dimensional tremolo character of vintage harmonic tremolo found in classic Brownface Fender amplifiers at Spaceman handcrafted boutique quality”
— from the listing
“Strengths: Split-band harmonic tremolo with bass and treble modulated out of phase delivers the dimensional swirling vintage Brownface Fender amp tremolo character at Spaceman boutique quality”
— from the reviews
“The Spaceman Delta II Cadet delivers harmonic tremolo at Spaceman boutique quality for vintage, classic rock, and ambient players who want the dimensional harmonic tremolo character of vintage Fender amps from a respected Portland boutique …”
— from the community notes
“The Spaceman Delta II Cadet is a harmonic tremolo pedal from Spaceman Effects (Portland, Oregon), delivering the dimensional, swirling harmonic tremolo effect by splitting the signal into bass and treble bands and modulating them out of pha…”
— from the listing
“Use-case wise it suits vintage and classic rock players who want harmonic tremolo at Spaceman boutique quality”
— from the community notes
Trade-offs
“In the signal chain tremolo sits after drive”
— from the community notes
- tremolo
- harmonic
- treble
- vintage
- three dimensional
- classic rock
- bass
- ambient
Price updated Oct 24, 2026
Genres the Spaceman Delta II Cadet: Harmonic Tremolo is commonly used in
- Classic Rock
- Ambient
- Indie
cited
Inferred from shared tonal signals, not a stated genre tag. - Country
cited
Inferred from shared tonal signals, not a stated genre tag. - Americana
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 Spaceman Delta II Cadet: Harmonic Tremolo
Dumble Steel String Singer
Dumble
23% 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)
Dumble Steel String Singer leans smooth right where the bright tone needs it
Comes later in the signal chain
Marshall JTM45 45W Tube Guitar Amp Head
amplifier
23% 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 Marshall JTM45 45W Tube Guitar Amp Head after it and the bright edge settles into something more warm
Comes later in the signal chain
Hiwatt Park P18LH 'Little 45' Handwired18W
Hiwatt
tonal matchComes later in the signal chain
Hiwatt Park P18LH 'Little 45' Handwired18W leans warm right where the bright tone needs it
Orange BT1000H Terror Bass 1000-Watt Bass Amp
Orange
tonal matchComes later in the signal chain
Run Orange BT1000H Terror Bass 1000-Watt Bass Amp after it and the bright edge settles into something more warm
Orange Terror Bass
Orange
tonal matchComes later in the signal chain
Run Orange Terror Bass after it and the bright edge settles into something more warm
Orange Little Bass Thing
Orange
tonal matchComes later in the signal chain
Orange Little Bass Thing leans warm right where the bright tone needs it
Gibson GA-50
Gibson
tonal matchComes later in the signal chain
Gibson GA-50's warm balances out the bright tone
Victory Amplifiers V50 The Earl
amplifier
tonal matchComes later in the signal chain
Where this leans bright, Victory Amplifiers V50 The Earl answers back warm
Pedals that stack with the Spaceman Delta II Cadet: Harmonic Tremolo
Greer Mizuki blue
Greer
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 → warm)
Greer Mizuki blue leans warm right where the bright tone needs it
Comes earlier in the signal chain
Catalinbread SFT
Catalinbread
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 → warm)
Where this leans bright, Catalinbread SFT answers back warm
Comes earlier in the signal chain
T-Rex Junior Roomate
T Rex
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.
Run T-Rex Junior Roomate after Spaceman Delta II Cadet: Harmonic Tremolo in the signal chain, where it won't crowd Spaceman Delta II Cadet: Harmonic Tremolo — goes in the amp's FX loop (or last, into a clean amp)
Comes later in the signal chain
Line 6 DL4 Delay Modeler
pedal
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.
Keep Line 6 DL4 Delay Modeler after Spaceman Delta II Cadet: Harmonic Tremolo in the signal chain, where it won't crowd Spaceman Delta II Cadet: Harmonic Tremolo — goes in the amp's FX loop (or last, into a clean amp)
Comes later in the signal chain
SolidGoldFX Commodore Breaker Overdrive
Solidgoldfx
tonal matchComes earlier in the signal chain
Run SolidGoldFX Commodore Breaker Overdrive after it and the bright edge settles into something more smooth
Dunlop Blue Hippo Optical Tremolo
Dunlop
tonal matchDunlop Blue Hippo Optical Tremolo leans warm right where the bright tone needs it
Black Rabbit Little Earthquakes
Black Rabbit
tonal matchBlack Rabbit Little Earthquakes leans warm right where the bright tone needs it
NuX 6ixty5ive Overdrive Effektpedal
Nux
tonal matchComes earlier in the signal chain
Where this leans bright, NuX 6ixty5ive Overdrive Effektpedal answers back warm
Cheaper alternatives
Fulltone Supa-Trem ST-1
pedal
57% similarityShared character: tremolo, vintage charm, classic rock
Modtone Harmonic Tremor Pulsating Tremolo
Modtone
56% similarityShared character: tremolo, overdrive
Universal Audio Flow Tremolo
Universal Audio
55% similarityShared character: tremolo, vintage charm
JHS 3 Series Harmonic Tremolo
JHS Pedals
51% similarityShared character: signal, tremolo, vintage charm
Effects Bakery Uguisu Bread Tremolo
Effects Bakery
90% similaritysimilar tone character
Lovepedal Babyface tremolo
Lovepedal
90% similaritysimilar tone character
Boutique & premium upgrades
Subdecay Vagabond Harmonic
Subdecay
96% similarityShared character: signal, tremolo, treble
Old Blood Noise Endeavors Obne Whitecap Tremolo
Old Blood Noise Endeavors
76% similarityShared character: signal, tremolo, treble
Audiocade Stereo Pendulum Harmonic Panning Tremolo
Audiocade
66% similarityShared character: signal, tremolo, ambient
MXR 305 Tremolo
MXR
57% similarityShared character: tremolo, classic rock, overdrive
JAM Pedals Harmonious Monk MK1
Jam Pedals
55% similarityShared character: tremolo
Jackson Audio New Wave
Jackson Audio
55% similarityShared character: tremolo, overdrive
Similar charactersee all similar tone character →
JHS Pedals JHS Tidewater Mini
JHS Pedals
67% similarityShared character: tremolo, overdrive
Walrus Audio Monument CS
Walrus Audio
55% similarityShared character: signal, tremolo, bass
Source Audio Vertigo
Source Audio
53% similarityShared character: tremolo, ambient, vintage charm
Audiocade 1974 Colorsound Tremolo Clone
Audiocade
53% similarityShared character: tremolo, vintage charm, classic rock
Cusack Music Tremolo AME
Cusack Music
50% similarityShared character: tremolo, overdrive
Chase Bliss Gravitas
Chase Bliss Audio
91% similaritysimilar tone character
See all alternatives to the Spaceman Delta II Cadet: Harmonic Tremolo (cheaper + boutique) →
Questions people ask
What are good alternatives to the Spaceman Delta II Cadet: Harmonic Tremolo?+
The closest matches in character are the JHS Pedals JHS Tidewater Mini, the Walrus Audio Monument CS, the Source Audio Vertigo. Budget picks: Fulltone Supa-Trem ST-1, Modtone Harmonic Tremor Pulsating Tremolo, Universal Audio Flow Tremolo. Boutique upgrades: Subdecay Vagabond Harmonic, Old Blood Noise Endeavors Obne Whitecap Tremolo, Audiocade Stereo Pendulum Harmonic Panning Tremolo.
What pairs well with the Spaceman Delta II Cadet: Harmonic Tremolo?+
Strong matches from rig and tone-complementarity evidence: Dumble Steel String Singer, Marshall JTM45 45W Tube Guitar Amp Head, Hiwatt Park P18LH 'Little 45' Handwired18W — Dumble Steel String Singer leans smooth right where the bright tone needs it.
How much does the Spaceman Delta II Cadet: Harmonic Tremolo cost?+
Around $129 (live listing price, updated Oct 24, 2026).