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Home Gear & Rigs DigiTech Obscura Altered Delay: The Pedal That Put a Renaissance Corpse on Your Pedalboard
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DigiTech Obscura Altered Delay: The Pedal That Put a Renaissance Corpse on Your Pedalboard

DigiTech Obscura Altered Delay explained: 4 delay types, Degrade knob, Repeat Hold, tap tempo, verified players, tone recipes and used-buying advice.

admin 19 min read

Most delay pedals are sold on their fidelity. Cleaner repeats, longer times, quieter noise floor, more headroom. The DigiTech Obscura Altered Delay was sold on the opposite promise, and it wore that promise on its face: a flayed, contorted skeleton lifted straight out of a 16th-century anatomy textbook, printed on a mustard-yellow enclosure, sitting on your board next to whatever tasteful boutique overdrive you saved up for.

The word in the name that matters is “Altered.” DigiTech did not build the Obscura to reproduce a Space Echo or an EP-3 with forensic accuracy. It built four delay engines that model the failure modes of vintage delay technology — the aliasing, the wow and flutter, the bit-crushed grit, the runaway feedback — and then gave you a dedicated knob whose entire job is to make those failures worse on command. That knob is called DEGRADE, and it is the whole pedal.

This is a gear feature, not a review. The Obscura is a discontinued product now — DigiTech lists it under “Past Products” on its own site — which makes it a used-market proposition rather than a shop-window one. That changes what you need to know about it. So here is the full story: where it came from, what every control actually does according to DigiTech’s own manual, which players have genuinely been photographed with one, how to dial it in, and what to check before you hand over money for a decade-old digital pedal.

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Origin: Salt Lake City, Musikmesse 2015, and a $187.44 Price Tag

DigiTech announced the Obscura Altered Delay on 17 April 2015 from Salt Lake City, Utah, under Harman ownership, and the announcement carried Premier Guitar’s Musikmesse 2015 tag rather than a NAMM one — this was a spring European trade-show launch, not a January reveal.

The press release put a marketing manager’s quote on the record that tells you exactly how the pedal was positioned internally. Tom Cram, then DigiTech’s Marketing Manager, said the Obscura “can sound pretty, but it also has the potential to sound pretty crazy,” and framed straight repeats as “just the starting point for twisting and morphing your delays upside down, inside out and into uncharted sonic territory.”

That is an unusually honest bit of product copy. The Obscura’s four algorithms are perfectly capable of ordinary, musical, sit-in-the-mix delay. But DigiTech was not pitching them that way. It was pitching the mangling.

The pedal shipped in April 2015 at a US suggested retail price of $187.44 — one of the odder MSRPs in pedal history, and a number that street-priced considerably lower. In the UK it landed at £129, where Guitar & Bass reviewed it in June 2015 and noted it was made in China.

The Artwork Is Not Random

The Obscura arrived as part of a run of DigiTech pedals that shared a retro-alchemical graphic identity — the same design language that gave us the DOD Carcosa Fuzz and its sibling boxes. The Obscura’s contribution to that family is a distorted human skeleton, and Guitar & Bass identified the source: it comes from Andreas Vesalius’s De humani corporis fabrica, the 1543 anatomical treatise that essentially founded modern anatomy.

One honest caveat on that attribution: the magazine described the illustration as having been “commissioned by” Vesalius, and while Vesalius certainly drove the production of the plates, art historians have never settled who actually cut them. The credit is usually given to an unnamed workshop associated with Titian, often — but not conclusively — to Jan Stephan van Calcar. So: the image is genuinely Vesalian, the specific artist is genuinely disputed, and DigiTech’s graphics team picked a 470-year-old image of a body coming apart to sell a pedal about signals coming apart. That is a better piece of art direction than most pedal companies manage in a decade.

Specifications

Key Specifications
ModelDigiTech Obscura Altered Delay (SKU: OBSCURA)
Announced / released17 April 2015, available April 2015
Launch price$187.44 US suggested retail; £129 UK
Current statusDiscontinued — listed as “Past Product” by DigiTech
Delay typesAnalog, Tape, Lo-Fi, Reverse (4)
Maximum delay timeUp to 2 seconds, in stereo
ControlsLevel, Delay Type selector, Time, Repeats, Tone, Degrade (Time/Repeats and Tone/Degrade are stacked concentric pairs)
SwitchingSoft-touch vacuum-style footswitch; Tails On/Off mini toggle
BypassTrue hardwire bypass with Tails OFF; buffered trails path with Tails ON
Tap tempoYes — hold footswitch 3 seconds to enter; 1/8, dotted 1/8 and 1/4 note multipliers
Special functionRepeat Hold (infinite repeats), engaged at REPEATS 3 o’clock or higher
InputsInput 1 (mono) and Input 2, 1/4″ unbalanced TS; true stereo processing
OutputsOutput 1 (mono) and Output 2, 1/4″ unbalanced TS
Input impedance>1 MΩ stereo, >500 kΩ mono (effect on)
Output impedance1 kΩ (effect on)
Internal railsConstant high-voltage power rails
Power9V DC external supply only — no battery compartment
Current drawSee the discrepancy noted below: manual states 125 mA / 1.2 W; DigiTech’s web spec sheet states 75 mA / 675 mW
Dimensions4.40″ L × 2.65″ W × 2.0″ H (approx. 110 × 67 × 50 mm)
Weight1.0 lb
In the boxPedal, StompLock knob guard, die-cut hook-and-loop pedalboard pad
Country of manufactureChina

A Genuine First-Party Contradiction About Current Draw

Worth flagging before you plan a pedalboard around one, because this is the kind of thing that bites people at soundcheck. DigiTech’s own two published sources disagree with each other about how much power the Obscura needs.

The Owner’s Manual (document 5085508-B, © 2017 Harman) states power consumption of 1.2 W, “< 125 mA @ 9V DC,” with a typical current draw of 125 mA. The specifications table on DigiTech’s current product page states 675 mW, “< 75 mA @ 9 VDC,” with a typical draw of 75 mA. Same pedal, same company, a 50 mA gap.

There is no published explanation for the difference. It could be a running production change, a measurement taken under different conditions, or simply a transcription error on one side. What matters practically: budget the higher figure. Give the Obscura an isolated 9V output rated for at least 125 mA — 200 mA or more if you have it spare — and the question becomes academic. Under-powering a digital delay with high-voltage internal rails is a good way to get intermittent glitching that you will waste an evening blaming on a cable.

The Four Delay Types, and What Degrade Does to Each

This is where the Obscura earns its name. Every one of the four algorithms has a different relationship with the DEGRADE knob, and DigiTech documents each one explicitly in the manual. This is not one “lo-fi” control applied uniformly — it is four separate destruction mechanisms sharing one shaft.

Analog

DigiTech’s own description: the classic sound of a vintage bucket-brigade analog delay circuit. Turning DEGRADE up increases aliasing and grit.

Guitar & Bass‘s reviewer found this mode had noticeably little top end even before you touched anything, and that winding up the repeats sent it “off into warm, soupy oblivion” — with DEGRADE advanced, it produced a “beautiful receding filter effect that surrounds your playing with warm pulsations.” That is a very good description of what a real BBD chain does as the repeats stack up and each pass loses another slice of bandwidth. If you have spent time with a MXR Carbon Copy, a Boss DM-2W, a Way Huge Aqua-Puss or a DOD Rubberneck, this mode is aimed at the same emotional territory — but the Obscura is a digital pedal doing an impression, and it will go further into breakdown than any of those genuinely analog boxes will.

Tape

DigiTech: emulates a classic tube tape echo. DEGRADE increases wow and flutter.

The review found Tape the most faithful of the bunch to the dry signal — “warmer and more rounded,” softening progressively as you add repeats — and reported that pushing DEGRADE sent it into “synthesised, but realistic, impersonations of wow and flutter to create a dense, chorus-like vibe.” That chorusing-through-instability effect is exactly what a slipping capstan does to pitch on a real machine. Compare against dedicated tape emulators like the Strymon El Capistan, the Strymon Volante, the Catalinbread Echorec or the Boss RE-2 Space Echo: those pedals model tape’s musicality in fine detail. The Obscura models tape’s malfunction, and gives you one knob to control how badly.

Lo-Fi

DigiTech: a low-fidelity delay with limited bandwidth and reduced bit depth, approximating the low sample rates and 8-bit signal processing of vintage digital delay units. DEGRADE here increases “input channel overdrive.”

Counterintuitively, Guitar & Bass found Lo-Fi to be the brightest and cleanest of the four at low degrade settings — early digital delays were harsh and thin, not dark — and that advancing DEGRADE “piles on the grit, making it sound as if a distortion pedal has processed the repeats.” That is a distinct and useful sound, and it is the mode that puts the Obscura in conversation with the deliberately broken end of the market: the Caroline Kilobyte and the Death By Audio Echo Dream 2 live in this neighbourhood.

Reverse

DigiTech: repeats are played backwards, and — this is the critical operational detail — no dry signal is present when Reverse is selected. The LEVEL knob controls only the repeat level in this mode, which means that with LEVEL at minimum in Reverse, you will hear nothing at all. This trips people up constantly on the used market and gets reported as a fault. It is not a fault; it is documented behaviour on page 3 of the manual.

The reviewer was candid that Reverse is “quite difficult to work with” and that it is hard to play anything through it that doesn’t come out sounding like trippy prog lead. Fair. Reverse delay is a special-occasion sound, and it always has been.

Famous Players: What the Evidence Actually Shows

Here we need to be straight with you, because this is a pedal where the honest answer is more interesting than a padded list of names.

There is no Premier Guitar Rig Rundown featuring the Obscura. Not one. In ten years of the pedal existing, it never surfaced as a named piece of a touring professional’s board in PG’s flagship gear-interview format. Every documented sighting below comes from photographs, live video, or demo footage — visual evidence rather than a player sitting down and explaining why the pedal is on their board. That is a real limitation and we are not going to dress it up.

What the visual record does show, catalogued with sources on Equipboard, is seven players:

Matthew Followill — Kings of Leon

The strongest name attached to the pedal. Equipboard’s entry cites an Instagram photograph in which a DigiTech Obscura Altered Delay is identifiable on the top row, left side, of Followill’s board. A board photo is exactly the right kind of evidence for a pedal like this — it is a pedal you own because you want it, not one you rent for a session — but it is still a single sighting rather than a stated preference, and Followill has never, to our knowledge, discussed the Obscura in an interview. Treat it as a confirmed sighting, not a signature association.

Adrian Belew

The most interesting name on the list, and the one where the source is a book rather than a snapshot: Adrian Belew‘s Obscura is visible in Stompbox: 100 Pedals of the World’s Greatest Guitarists, per Equipboard’s citation of a browse video of the book.

One correction is needed here. Equipboard’s database files Belew under “Nine Inch Nails,” and while there is a real thread connecting him to that band, it badly undersells who he is and what his delay pedals are for. Belew is the guitarist whose defining work runs through King Crimson alongside Robert Fripp, plus Talking Heads, David Bowie and Frank Zappa — and he is arguably the most important guitarist in history for the specific idea that a delay unit is an instrument rather than an effect. If any player on this list was going to reach for a pedal whose selling point is a knob that ruins the repeats on purpose, it was always going to be him. The association is a good one; the band credit attached to it is not the one that matters.

Rob Chapman — Dorje

Equipboard cites a YouTube video in which Chapman plays the pedal from 0:11 and explores it in depth from around 9:30. Important context: Chapman is one of the guitar world’s best-known demo presenters, and a demo video is not evidence that a pedal lives on someone’s board. We are including it because it is a documented, timestamped, verifiable engagement with the pedal by a serious player — and because it is a useful listening resource if you want to hear the Obscura at length before buying — but nobody should read it as an endorsement.

Gwenno

The Welsh and Cornish-language songwriter and former Pipette used an Obscura in a live WFUV performance of “Calon Peiriant,” per Equipboard’s video citation. A live-session sighting is meaningfully stronger evidence than a studio photograph, because the pedal was doing a job in front of a microphone with no second takes.

Paul Court — The Primitives

Documented by a photograph taken by an Equipboard user on 4 September 2021, immediately after the band left the stage, in which Court’s Obscura is clearly visible. Photograph-just-after-the-set is about as good as amateur board documentation gets — the board is as it was played, not as it was staged.

Charlie Dawe — Ventenner

Documented via the band’s official Instagram account. Industrial-leaning British rock, which is a sensible home for a pedal whose Lo-Fi mode distorts its own repeats.

And One Anonymous Entry

Equipboard’s seventh entry is a YouTube channel guitarist listed under a handle rather than a name. We mention it for completeness and attach no weight to it.

What the Player Record Tells You

Seven sightings across a decade, none of them from a Rig Rundown, none of them from a magazine interview, and the two most notable — Followill and Belew — coming from a social post and a coffee-table book respectively. This is not a pedal with a famous-player mythology, and any listing that tells you otherwise is inventing one. It is a pedal that got bought by curious people, used quietly, and discontinued. That is a perfectly respectable life for a piece of gear, and it is also why used prices are reasonable.

Tone Recipes and Settings

1. Honest Slapback (the “it’s actually a normal delay” setting)

Type: Tape. Time: short, roughly 8–10 o’clock. Repeats: 9 o’clock — one or two audible repeats only. Level: 10 o’clock. Tone: noon. Degrade: fully counter-clockwise. Tails: OFF, for true bypass.

With DEGRADE at zero, Guitar & Bass observed that the first three algorithms behave “as if you have three new, fully functional retro delays.” This is that. Rockabilly and country slapback, no theatrics.

2. The Bucket-Brigade Dissolve

Type: Analog. Time: 11 o’clock (roughly 350–450 ms). Repeats: 1 o’clock — plenty, but below the Repeat Hold threshold. Level: 11 o’clock. Tone: 10 o’clock. Degrade: 1 o’clock.

This is the mode’s signature: each repeat loses more high end and gains more grit until the tail dissolves into a warm pulsing wash underneath your playing. Sit it after your dirt and in front of nothing.

3. Dark Wobbly Lead

Type: Tape. Time: dotted eighth via tap tempo. Repeats: noon. Level: noon. Tone: 9 o’clock. Degrade: 2 o’clock.

Heavy DEGRADE in Tape mode is wow and flutter, and at these settings the pitch instability across stacked repeats reads as a thick chorus behind the note. For lead lines that need width without a modulation pedal.

4. Broken Digital Rhythm

Type: Lo-Fi. Time: eighth note via tap tempo. Repeats: 11 o’clock. Level: 1 o’clock. Tone: 1 o’clock. Degrade: 3 o’clock.

DEGRADE in Lo-Fi is input-channel overdrive, so the repeats arrive distorted while your dry signal stays clean. Percussive, aggressive, and genuinely different from anything a Boss DD-3 will do.

5. Backwards Saturated Tape

Type: Reverse. Level: 1 o’clock minimum — remember, no dry signal exists in this mode. Time: noon. Repeats: 10 o’clock. Tone: noon. Degrade: 1 o’clock.

DEGRADE in Reverse adds “tape saturation,” per DigiTech. Play sustained, simple, mostly-single-note phrases; Reverse punishes busy playing.

6. Tar Pit — The Repeat Hold Performance Setting

Type: Analog or Lo-Fi. Tails: ON. Repeats: start below 3 o’clock. Time: 2 o’clock (long). Tone: noon. Degrade: 11 o’clock.

Procedure, straight from the manual: with the effect on and REPEATS below 3 o’clock, play the phrase you want to capture, then sweep REPEATS to fully clockwise. The delay now repeats infinitely. With TAILS set to ON, you can then bypass the pedal with the footswitch and the hold keeps going — so you can play cleanly over the top of a loop that your delay pedal is sustaining behind you. Kill it by setting TAILS to OFF and bypassing, or by simply moving the DELAY TYPE selector.

The Runaway Control Trick (Counterintuitive, and Documented)

This is the single most useful thing in the manual and it runs backwards from instinct. Once Repeat Hold is engaged and the delay starts building toward runaway oscillation:

  • To tame runaway: turn DEGRADE up, turn TONE down, or both.
  • To induce runaway: turn TONE up, turn DEGRADE down.

Yes — more degradation makes the feedback loop more stable, because destroying high-frequency content in each pass costs the loop the energy it needs to build. TONE and DEGRADE together become a two-handed throttle on a self-oscillating system, and that is a real performance technique rather than a set-and-forget tone control.

Tap Tempo, Precisely

Hold the footswitch for 3 seconds to enter tap mode — the LED starts flashing at the current delay rate. Tap at least twice; the last two intervals set the time. While in tap mode, the TIME knob selects the subdivision, and the LED colour tells you which one: flashing green is an eighth note, flashing yellow is a dotted eighth (quarter-note triplet), and flashing red is a quarter note at 1:1. Hold the footswitch 3 seconds again to exit. The tapped time then survives until either you change delay type or you move the TIME knob.

One genuinely creative application the manual calls out: while Repeat Hold is running, entering tap mode and tapping in new times makes the held loop jump abruptly to the new division, producing blipping, cycling, tempo-locked repeats out of material you already captured.

DigiTech shipped nine named example settings in the manual, and the names alone tell you what the design team thought the pedal was for: “Get Out Of My Way,” “Dark Wobbly Lead,” “Dirty Pulse,” “Backwards Saturated Tape,” “Tick Tock,” “Runaway Clock,” “Motion Of The Ocean,” “Dark Stalker,” and “Tar Pit.” Four of those nine are explicitly marked as oscillating settings, and four carry the instruction “play part then engage Repeat Hold.” Roughly half the factory presets are not delay settings at all. They are performance instructions.

The knob positions in the manual are printed as diagrams rather than text, so rather than guess at them, here are starting points built from the documented control behaviour.

How It Compares

Against the multi-algorithm workhorses. The Line 6 DL4, the Source Audio Nemesis, the TC Electronic Flashback 2 and the Meris LVX all offer more algorithms, presets, and in most cases MIDI. The Obscura offers four algorithms, no presets, and no MIDI. What it offers instead is that every single knob is live under your foot at all times with nothing buried in a menu — and that its four algorithms are voiced toward breakdown rather than breadth.

Against the boutique lo-fi specialists. The Caroline Kilobyte and Death By Audio Echo Dream 2 are more extreme and more characterful, and each does one broken thing brilliantly. The Obscura does four merely-good broken things and lets you switch between them with a knob, in stereo, with tap tempo — features neither of those pedals offers.

Against the true-analog options. A Deluxe Memory Man, a Maxon AD999 or an EHX Memory Toy will always sound more organically analog than a model of an analog circuit. But none of them will go backwards, none will hold infinitely, and none will bit-crush.

Against its own family. The Obscura sits in a specific late-period DigiTech run that also produced the FreqOut, the Drop, the Trio+ and the long-running Whammy. All of them are pedals that do something no analog circuit could, and all of them are now discontinued or on borrowed time. Buy accordingly.

Against loopers. Repeat Hold is not looping. A Chase Bliss Blooper or the looper side of an EHX Canyon captures a defined phrase with defined boundaries. Repeat Hold captures whatever happened to be in the delay buffer and refuses to let go of it. The results are less controllable and, in the right hands, considerably more interesting.

Buying Guide: What to Check on a Used Obscura

The Obscura is discontinued, which means every one you find is second-hand and around a decade old. Some specifics:

  • Bring a power supply, not a battery. There is no battery compartment. If a seller cannot power the pedal for you to test, walk away or negotiate hard — you cannot verify anything about a delay pedal you cannot hear.
  • Test Reverse mode with LEVEL up. “The pedal is silent in one mode” is the most common false fault report on this box. Silence in Reverse with LEVEL low is correct behaviour.
  • Test both bypass states. Flip TAILS to OFF and confirm the delay cuts dead and the bypass is genuinely hardwire. Flip it ON and confirm tails decay naturally. Both paths need to work.
  • Test the stereo path properly. The Obscura processes Input 1 and Input 2 separately and keeps true stereo separation to Outputs 1 and 2 — this is not a mono engine with a split output. Verify both channels independently.
  • Work the concentric knobs. Stacked pots are the mechanical weak point on any pedal of this design. Sweep TIME/REPEATS and TONE/DEGRADE fully and listen for crackle or dead zones, and check that the outer ring does not drag the inner shaft with it.
  • Check the footswitch. The soft-touch vacuum switch should feel light and click cleanly, and holding it for 3 seconds must reliably enter tap mode. A switch that needs stomping is a switch on its way out.
  • Ask about the StompLock and pedalboard pad. Both shipped in the box. Neither affects the sound; both affect the price you should pay for a “complete” example.
  • Expect no service support. This is a discontinued Harman-era digital pedal. There is no drop-in replacement DSP and no realistic repair path for a board-level fault. Price it as an as-is purchase.

Ownership Notes

Power it generously and isolate it. Given the published 75 mA / 125 mA discrepancy, plan for 125 mA and use an isolated output. Digital delay next to analog dirt on a daisy chain is how you acquire a whine you will never track down.

Decide your Tails position deliberately. With TAILS ON the Obscura is not true bypass — DigiTech says so explicitly. If true hardwire bypass matters to your signal chain philosophy, TAILS lives OFF and you give up trails and the bypassed Repeat Hold trick. If you want the performance features, you accept a buffered path. There is no configuration that gives you both.

Placement. Standard delay logic: after your dirt, late in the chain, or in an amp’s effects loop. If you use the loop and it has a mix control, the manual is specific — set the loop mix to 100% wet and control the blend from the pedal’s LEVEL knob.

Cabling. DigiTech specifies unbalanced TS instrument cables for all audio connections. Do not use TRS.

Use the StompLock. It is a knob guard with an open top so you can still read your settings, and on a pedal with two concentric pots and a live performance mode, protecting your positions from a boot heel is not a luxury.

Practise the Repeat Hold move before you gig it. The sequence — play the phrase, sweep REPEATS clockwise past 3 o’clock, then manage runaway with TONE and DEGRADE — is a physical skill. It is also loud and unpredictable when it goes wrong. Learn where your pedal tips over at home.

Frequently Asked Questions

Is the DigiTech Obscura still in production?

No. DigiTech lists the Obscura Altered Delay as a “Past Product,” meaning it is no longer manufactured but may still turn up through dealers and, far more commonly, on the used market. It ran from April 2015 to discontinuation.

Can the Obscura run on a 9V battery?

No. The manual is explicit: the Obscura can only be powered from an external 9V DC supply. There is no battery compartment. DigiTech recommends the PS0913DC series (9V DC, 1.3 A).

Why is my Obscura silent in Reverse mode?

Because no dry signal is passed in Reverse — the LEVEL knob controls only the reversed repeats in that mode, so at minimum LEVEL you hear nothing at all. This is documented, intended behaviour, not a fault. Turn LEVEL up.

How much current does the Obscura actually draw?

DigiTech’s two published sources disagree: the Owner’s Manual says 125 mA typical (1.2 W), while the specification table on the product page says 75 mA typical (675 mW). No explanation for the difference has been published. Power it for 125 mA and the question stops mattering.

Is the Obscura true bypass?

Only with the TAILS switch set to OFF. With TAILS ON, the pedal uses a buffered path so that repeats can decay naturally after switching off — DigiTech states plainly that it does not use true hardwire bypass in that position.

What is the maximum delay time?

Up to 2 seconds, and the pedal processes in true stereo — Input 1 and Input 2 run through separate delay paths to Outputs 1 and 2 rather than being summed to mono.

How do I get infinite repeats?

Set REPEATS below the 3 o’clock mark, engage the effect, play your phrase, then turn REPEATS fully clockwise past the screened line. The delay now repeats indefinitely. With TAILS set to ON, the hold continues even after you bypass the pedal with the footswitch, so you can play over the top of it.

Which famous guitarists have used the Obscura?

Documented sightings include Matthew Followill of Kings of Leon (Instagram board photo), Adrian Belew (photographed in the book Stompbox: 100 Pedals of the World’s Greatest Guitarists), Gwenno (WFUV live session), Paul Court of The Primitives (post-gig board photo, September 2021) and Charlie Dawe of Ventenner. Rob Chapman has demonstrated the pedal at length on video. Importantly, none of these come from a Premier Guitar Rig Rundown or an interview in which the player discusses the pedal — the Obscura has no significant famous-player mythology, and any source claiming otherwise is inventing it.

Should I buy an Obscura in 2026?

If you want a straight, reliable, well-supported delay for song parts, no — buy something current. If you want a four-flavour delay whose entire design thesis is controlled degradation, with a genuinely playable infinite-hold performance mode, in true stereo, at used-market money, then yes. Just budget the power correctly and accept that repairs are not realistically available.

Tags: Adrian Belew, altered delay, analog delay emulation, delay pedal, DigiTech, discontinued pedals, gear guide, Gwenno, Harman, Kings of Leon, lo-fi delay, Matthew Followill, Obscura, pedalboard, repeat hold, reverse delay, stereo delay, tap tempo, tape delay, The Primitives