SKU: 12969284192

Mad Professor DEEP BLUE Delay Guitar Effects Pedal - Hand Wired

Sale price$211.50 Regular price$235.00
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Description

Mad Professor DEEP BLUE Delay Guitar Effects Pedal - Hand WiredHAND MADE IN FINLAND PREMIUM QUALITY DELAY PEDAL Deep Blue Delay is a natural sounding digital analog delay, with the analog direct signal path. The Deep Blue Delay has about the same bandwidth as the classic tape echo units, and it can be used in front of an amplifier or in amplifier effects loops. There are no noise reduction circuits, which keeps decay of echo as natural as possible. The direct signal path is short and made with analog amplifiers

HAND MADE IN FINLAND PREMIUM QUALITY DELAY PEDAL

  • Deep Blue Delay is a natural sounding digital/analog delay, with the analog direct signal path. The Deep Blue Delay has about the same bandwidth as the classic tape echo units, and it can be used in front of an amplifier or in amplifier effects loops.
  • There are no noise reduction circuits, which keeps decay of echo as natural as possible.
  • The direct signal path is short and made with analog amplifiers with no filtering.
  • There should be no distortion or tone coloration as long as input level is in the range below maximum allowed.
  • The echo signal has a tuned filtering to allow extreme settings without interference.
  • The delay is specially designed to work well with distorted tone, as this is the most critical application, where delays often fail. 

You can use the pedal before or after distortion. As such, it will work exceptionally well on clean sounds where requirements are less stringent, especially in terms of echo bandwidth and repeat formation. The delay tone has been carefully tuned with a lot of attention to the first critical reflection and how the repeats decay. 

Deep Blue Delay is kept small (Width x Length x Height: 69mm x 111mm x 50mm including jacks and knobs) containing just the basic delay features; Delay Time, Delay Level and Repeat controls. It was designed to work as an ambiance delay; like that of a vintage tape echo and the repeat, the formation was specifically designed to allow easy setting and less critical setting of delay time. With delay times higher than 120ms, the delay time is sometimes set on the beat or on a multiple of the beat. Deep blue handles this by not giving full range repeats, but a tuned response that doesn't need to be on the beat to sound good.

Why digital? Isn’t Analog better for a solid-state solution? 

Well, in many ways, the delay medium is less critical and it could be an oil-drum, tape, metal-thread, analog BBD or digital, but the final sound is always set by the limitations of the delay medium and the peripheral circuitry needed to make either work. We chose Digital construction to make it compact, stable, with reasonable delay time and virtually service free, where the limitations of the circuit would be less critical. As an outcome, you can set the peripheral circuitry with desired bandwidth and distortion levels with less consideration on the exact limits of the delay medium, while of course always pushing the limits, as with anything musical. 

A similar circuit in analog form would be excessively more expensive to make. For the same performance, it would require three to four of the best BBD chips now only available as vintage parts and the size of the pedal would have to be about three times the current size.

CONTROLS

  • LEVEL: Sets the level of delayed signal mixed with straight guitar tone, fully CCW there is only straight (un-effected) guitar signal heard and fully CW gives the loudest delay.
  • DELAY: Controls the delay time from 25ms (fully CCW) to 450ms (fully CW).
  • REPEAT: Controls the repeats of the delay signal, fully CCW gives one repeat and at fully CW you get infinite feedback.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
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  • Delivery to the USA:
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 12969284192

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4.3 ★★★★★
Based on 11 reviews
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Jossy
Alexandria, US
★★★★★ 5
i can’t believe how long i went without this
Color: Silver, Color: Silver
i never expected how much of a difference this item would or could make in my nightly tea routine. i’m a slow sipper and would normally have to get up and microwave my mug 1-2 times depending on how willing i was to stop everything i was doing and move out of my comfy spot to remedy the impending sad lukewarm experience. YALL! the temperature really does make it taste better (i already knew that) but now i can settle into my spot in cozy PEACE and take as long as i want to to enjoy my tea. i was worried if the lower price point compared to other options on amazon would mean it may be lacking in quality or function, but NOPE! just a genuinely good deal (about $10 at the time of this review) and the features are all there. yes yes yes, go ahead and treat yourself because this one is worth it.
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Reviewed in the United States on June 7, 2026
D
Verified Purchase
Duchess Harbaugh
Louisville, US
★★★★★ 5
Best Drink Warmer I have Ever used
Color: Silver
This is a very attractive addition to your side table or desk. Very streamlined, so takes minimal space. Settings allows you to keep your hot drink Hot for hours. Shuts itself off automatically.
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Reviewed in the United States on June 2, 2026
M
Verified Purchase
MsY
New York, US
★★★★★ 4
SO FAR SO GOOD! :)
Color: Silver
This is a nifty little product. It heats up pretty quickly and really does keep my beverages warm or hot, perhaps it's because it's an AC plug-in rather than USB. :) The options for length of time & degree of heat are VERY beneficial & it's an easy "touch" control. For someone who forgets to "turn things off", the auto shutoff is ideal! (lol) It's flat, steady & doesn't take up much room. The only drawback for me is that the entire tray gets hot, not just the part that the mug sits on, otherwise I'd have given it not 5 but 10 stars! It will be interesting to see how long it lasts though. :)
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Reviewed in the United States on May 6, 2026
B
Verified Purchase
Books Love Me
Grantham, US
★★★★★ 5
Coffee keep warm plate
Color: Silver, Color: Silver
4 heat settings. Love the hour timer. I can set how many hours I want it to keep my coffee warm. Very value at a great low price.
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Reviewed in the United States on May 12, 2026
Q
Verified Purchase
Quin
Lake Worth, US
★★★★★ 5
It's hot.
Color: Silver
It's hot. I like it. I make my tea in a 20 oz mug. Invariably it gets cold and I need to reheat it. Someone suggested I order a mug warmer. I chose this one. It has 3 heat settings and a 12 hr timer with auto turn off. What more could I ask for? Except that it has a low profile and easy to read and set settings, it does. Prefect.
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Reviewed in the United States on May 19, 2026

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