The Old Blood Noise Endeavors BL-13 is an Old Blood Noise Endeavors octave pedal, currently around $179. Close alternatives include the Walrus Audio Luminary and the Boss OC-2 Octaver. It pairs well with the Vox AC30 Guitar Combo Amp and the Matchless DC-30.
Old Blood Noise Endeavors BL-13
Old Blood Noise Endeavors · pedal
The Old Blood Noise Endeavors BL-13 Octave is part of the brand's BL series of variable-clock effectors, pairing octave-up and octave-down voices with a touch of reverb for a drifting, out-of-sorts, grimy ambience. Rather than a clean, precise octaver, it leans into character, producing unstable, atmospheric octave textures with a lo-fi haze, and its variable system clock lets players move between cleaner, higher-fidelity tracking and darker, degraded, drifting tones. It suits experimental, ambient, and shoegaze players who want octave effects with built-in mood and grit rather than surgical accuracy. Now discontinued, it remains a distinctive, texture-focused octave-and-reverb box for those chasing evocative, slightly broken octave ambience in their sound.
What stands out
“Limitations include imprecise, intentionally drifting tracking that will frustrate players seeking tight clean octaves, a niche experimental voice, and discontinued status that makes it harder to find, positioning it firmly as a texture too…”
— from the reviews
“The main caveats are that it prioritizes texture and instability over precise octave tracking, making it”
— from the community notes
“The Old Blood Noise Endeavors BL-13 Octave is part of the brand's BL series of variable-clock effectors, pairing octave-up and octave-down voices with a touch of reverb for a drifting, out-of-sorts, grimy ambience”
— from the listing
“it suits experimental”
— from the listing
“It is used for ambient, shoegaze, and experimental textures, sitting in the chain as a mood-setting effect into clean or driven amps, with the variable clock shifting from cleaner tracking to dark, degraded drift”
— from the community notes
- octave
- tracking
- reverb
- experimental
- ambient
- shoegaze
- grit
- dark
Price updated Oct 23, 2026
Genres the Old Blood Noise Endeavors BL-13 is commonly used in
- Ambient
- Experimental
- Shoegaze
- Post Rock
cited
Inferred from shared tonal signals, not a stated genre tag. - Electronic
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 Old Blood Noise Endeavors BL-13
Vox AC30 Guitar Combo Amp
Vox
27% matchfills a frequency gapFills in a frequency range the other side doesn't cover, instead of piling more onto what's already there. (dark → bright)
Vox AC30 Guitar Combo Amp leans bright right where the dark tone needs it
Comes later in the signal chain
Matchless DC-30
Matchless
24% matchfills a frequency gapFills in a frequency range the other side doesn't cover, instead of piling more onto what's already there. (dark → glassy)
Where this leans dark, Matchless DC-30 answers back glassy
Comes later in the signal chain
Vox AC30CH Custom 30W Head
Vox
tonal matchComes later in the signal chain
Where this leans dark, Vox AC30CH Custom 30W Head answers back bright
1964 Vox AC30
Vox
tonal matchComes later in the signal chain
Where this leans dark, 1964 Vox AC30 answers back glassy
Ceriatone Dizzy 30
Ceriatone
tonal matchComes later in the signal chain
Run Ceriatone Dizzy 30 after it and the dark edge settles into something more bright
Vox AC30 Rose Morris 80s
amplifier
tonal matchComes later in the signal chain
Vox AC30 Rose Morris 80s leans bright right where the dark tone needs it
Vox AC15 Custom CC TTBC Limited Edition
Vox
tonal matchComes later in the signal chain
Run Vox AC15 Custom CC TTBC Limited Edition after it and the dark edge settles into something more bright
Vox AC15C2 Custom 2-Channel 15W 2x12 Combo
Vox
tonal matchComes later in the signal chain
Run Vox AC15C2 Custom 2-Channel 15W 2x12 Combo after it and the dark edge settles into something more bright
Pedals that stack with the Old Blood Noise Endeavors BL-13
Catalinbread Formula 55
Catalinbread
22% matchfills a frequency gapFills in a frequency range the other side doesn't cover, instead of piling more onto what's already there. (dark → bright)
Catalinbread Formula 55 leans bright right where the dark tone needs it
Comes later in the signal chain
Catalinbread Galileo
Catalinbread
22% matchfills a frequency gapFills in a frequency range the other side doesn't cover, instead of piling more onto what's already there. (dark → bright)
Where this leans dark, Catalinbread Galileo answers back bright
Comes later in the signal chain
Strymon El Capistan
Strymon
10% 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 Strymon El Capistan after Old Blood Noise Endeavors BL-13 in the signal chain, where it won't crowd Old Blood Noise Endeavors BL-13 — goes in the amp's FX loop (or last, into a clean amp)
Comes later in the signal chain
Boss DD-200 Digital Delay
Boss
10% 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 Old Blood Noise Endeavors BL-13's octave voice out front: Boss DD-200 Digital Delay goes after Old Blood Noise Endeavors BL-13 in the signal chain so its shimmer voice doesn't muddy it — goes in the amp's FX loop (or last, into a clean amp)
Comes later in the signal chain
Tech 21 SansAmp Oxford
Tech 21
tonal matchComes later in the signal chain
Run Tech 21 SansAmp Oxford after it and the dark edge settles into something more bright
Aguilar DB 925
Aguilar
tonal matchComes later in the signal chain
Aguilar DB 925's bright balances out the dark tone
Tech 21 SansAmp Character Plus Mop Top Liverpool
Tech 21
tonal matchComes later in the signal chain
Tech 21 SansAmp Character Plus Mop Top Liverpool's bright balances out the dark tone
Carl Martin AC-Tone
Carl Martin
tonal matchComes later in the signal chain
Where this leans dark, Carl Martin AC-Tone answers back glassy
Cheaper alternatives
Boss OC-3 Super Octave
Boss
48% similarityShared character: tight tracking, one octave
Behringer Octavia Octave Fuzz
Behringer
44% similarityShared character: tight tracking, one octave, clean
EarthQuaker Devices Tentacle V2
EarthQuaker Devices
42% similarityShared character: tight tracking, one octave
Boss OC-2 Octave
Boss
92% similaritysimilar tone character
Boss OC-5
Boss
91% similaritysimilar tone character
Boutique & premium upgrades
Roger Mayer Octavia Classic
Roger Mayer
46% similarityShared character: tight tracking, one octave
Roger Mayer Octavia
Roger Mayer
45% similarityShared character: tight tracking, one octave
Mu-Tron Octave Divider
pedal
43% similarityShared character: tight tracking, one octave
Similar charactersee all similar tone character →
Walrus Audio Luminary
Walrus Audio
64% similarityShared character: tight tracking, one octave, noise
Boss OC-2 Octaver
Boss
52% similarityShared character: tight tracking, one octave, noise
EarthQuaker Devices Bit Commander Analog Octave Synth
EarthQuaker Devices
50% similarityShared character: tight tracking, one octave, noise
KMA Machines Mandrake
Kma Machines
47% similarityShared character: tight tracking, one octave
TC Electronic Sub 'N' Up Mini
TC Electronic
45% similarityShared character: tight tracking, one octave, clean
Electro-Harmonix Pico POG
Electro-Harmonix
43% similarityShared character: tight tracking, one octave, ambient
See all alternatives to the Old Blood Noise Endeavors BL-13 (cheaper + boutique) →
Questions people ask
What are good alternatives to the Old Blood Noise Endeavors BL-13?+
The closest matches in character are the Walrus Audio Luminary, the Boss OC-2 Octaver, the EarthQuaker Devices Bit Commander Analog Octave Synth. Budget picks: Boss OC-3 Super Octave, Behringer Octavia Octave Fuzz, EarthQuaker Devices Tentacle V2. Boutique upgrades: Roger Mayer Octavia Classic, Roger Mayer Octavia, Mu-Tron Octave Divider.
What pairs well with the Old Blood Noise Endeavors BL-13?+
Strong matches from rig and tone-complementarity evidence: Vox AC30 Guitar Combo Amp, Matchless DC-30, Vox AC30CH Custom 30W Head — Vox AC30 Guitar Combo Amp leans bright right where the dark tone needs it.
How much does the Old Blood Noise Endeavors BL-13 cost?+
Around $179 (live listing price, updated Oct 23, 2026).