Dunlop Echoplex Delay EP103 vs Mad Professor Deep Blue Delay
The Dunlop Echoplex Delay EP103 and the Mad Professor Deep Blue Delay are both pedals sharing analog warmth, transparent. The Dunlop Echoplex Delay EP103 leans modulated. The Mad Professor Deep Blue Delay leans warm and ambient.
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Blended from circuit-archetype lineage, dynamic feel, tone-signal overlap and tone-vector distance — the tone vector itself is derived from editorial description text, not a measured acoustic signal, so this reflects how similarly the catalog copy describes the two, not a lab measurement. Shown only within a gear class, and only where there's enough evidence to be meaningful.53% — moderately similar
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Derived from overlapping tonal signals across both listings.- analog warmth
- transparent
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Citation/mention fame — how often this gear is cited across artist rigs and gear discussion.$181.50via Reverb
The Dunlop EP103 Echoplex Delay recreates the tape-echo character of the vintage Echoplex EP-3, producing rich, lively repeats on chords and punchy, full-bodied single notes rather than the flatter, thinner echoes of typical digital delay emulations. It stays clear and well-defined even in front of a distorted amp, and its Age control is the key to its character, darkening the tone, adding tape-style saturation, and introducing a distinctive pitch warble and modulation similar to chorus as it's turned up, mimicking a well-worn tape unit's organic drift and fade. The result is a darker, more natural-sounding echo than typical analog delay units, with a fully analog dry path that keeps the underlying tone uncolored.
The Mad Professor Deep Blue Delay is a boutique delay designed to capture the warm, natural sound of classic 1960s tape echo units while using a hybrid digital delay line with a fully analog, unfiltered dry path. Its bandwidth roughly matches vintage tape echoes, and the repeats are carefully tuned around the first critical reflection and how each echo decays, giving an organic, vintage-oriented character that blends beautifully with an amp. Crucially, it is engineered to work well with distorted tones, an application where many delays fail, keeping the dry signal uncolored and clear. Compact with a simple control set, it suits players wanting musical, tape-flavored repeats for slapback, rhythmic delay, and ambient trails without tone loss, equally at home with clean and overdriven rigs.
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Genres this gear is documented as being used in.- ambient
- lo fi
- rockabilly
- Blues Rock
- Rock
- Blues
- Indie
- Ambient
- modulated
- warm
- ambient
- slapback
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Occasions this gear suits — judged per model, or derived from its wattage, connectivity and category.- Live
- Studio
- Live
- Studio