
Anthony Easton
The Mad Professor Deep Blue Delay is a natural sounding digital/analog delay pedal with an analog direct signal path. It is designed to provide vintage warmth and ambiance, similar to that of a vintage tape echo. The pedal is compact, with dimensions of 69mm x 111mm x 50mm including jacks and knobs.
Key features and specifications include:
- Controls: The pedal features Delay Time, Delay Level, and Repeat controls.
- Electrical Specifications:
- Current consumption: 32mA at 9VDC
- Voltage range: 8V to 15V (below 7.5V delay signal will be muted)
- Input impedance: 180K ohms
- Output drive capability: 10K ohms
- Maximum input voltage: 2V peak 650 mV rms
- Signal to noise ratio: 80 dB
- Delay time approximately 25 ms to 450 ms
- Power requirement supplied via 2.1 mm DC socket
- Input and output connections via 1/4” phone jack
- Complete bypass and input of circuit grounded when in bypass
- Power requirements: 6F22 9V battery or DC eliminator 2.1 mm plug center
negative and positive sleeve
The Deep Blue Delay is specifically designed to work well with distorted tones and can be used before or after distortion. It is suitable for clean sounds as well, offering a carefully tuned delay tone with attention to the first critical reflection and repeat decay.
The pedal's digital construction makes it compact, stable, and virtually service-free, allowing for desired bandwidth and distortion levels without the limitations of analog construction. The delay medium offers a bandwidth similar to classic tape echo units and can be used in front of an amplifier or in amplifier effects loops.
Watch the latest video demos and reviews for the Deep Blue Delay from YouTube. Stompbx updates this every six months to reflect the most popular reviewers and guitar pedal demos for each pedal.

Below are live Reverb listings for the Mad Professor Deep Blue Delay from Reverb. Stompbx automatically aggregates current offers to give you a quick look at available models, conditions, and prices. Perfect for comparing options and making an informed purchase.

Brand New
$248.74

Brand New
$214.99

Brand New
$249.99

Brand New
$300.87

Brand New
$193.60

Brand New
$249.99

Brand New
$219

Browse through eBay listings for the Deep Blue Delay compiled in real-time. From vintage finds to brand-new units, see a variety of purchasing options. This automated collection helps you explore deals and find the right pedal at the right price.

Used
$282.11

Discover pedals with similar features or sounds to the Deep Blue Delay. This section leverages data to suggest alternatives that complement or expand your pedalboard. Ideal for exploring related sounds or finding a pedal that matches your specific needs.

NUX
Time Force

Moog
Moogerfooger MF-104 Analog Delay

Danelectro
Back Talk Reverse Delay

Meris
LVX Modular Delay System Pedal

NUX
Atlantic Delay & Reverb

Nocturne
Mystery Brain

Eventide
TimeFactor Twin Delay

MG Music
That's Echo Folks

Maxon
AD-9

Subdecay
Starlight V2

Arion
SAD-1

TC Electronic
Blood Moon Phaser

DeadBeat Sound
Echolation Station

JHS
The Milkman

EarthQuaker Devices
Space Spiral

Mythos Pedals
Oracle Analog Echo
Check out the latest news and articles from around the pedal world.

Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton