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Mad Professor Deep Blue Delay User Manual

Mad Professor Deep Blue Delay
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Mad Professor Deep Blue Delay
ELECTRICAL SPECIFICATION:


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







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


POWER REQUIREMENTS:


NOTES:
-

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
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
www.mpamp.com • info@mpamp.com

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Mad Professor Deep Blue Delay Specifications

General IconGeneral
Effect TypeDelay
BypassTrue Bypass
TechnologyAnalog
ControlsDelay, Repeat
Power Supply9V DC
Input1/4" Jack
Output1/4" Jack
Delay Time25ms - 450ms
Input Impedance500 kOhm

Summary

Electrical Specifications

Current Consumption

Current draw of the pedal varies between 25-32 mA based on delay setting.

Voltage Range

Operates between 8V and 15V; signal mutes below 7.5V.

Input/Output Impedance

Input impedance is 180K ohms, output drive capability is 10K ohms.

Signal and Delay Characteristics

Max input voltage 2V peak, S/N ratio 80 dB, delay time 25-450 ms.

Power and Connectivity

Powered via 2.1mm DC socket; uses 1/4" phone jacks for connections.

Bypass Mode

Features complete bypass with circuit input grounded when in bypass.

Power Requirements

Power Source Options

Can be powered by a 6F22 9V battery or a DC eliminator.

Important Notes

DC Polarity Protection

Protected against incorrect DC eliminator polarity; low voltage causes fuzzy sound.

Compliance and Warranty

Meets EN standards, RoHS, WEEE; includes a 1-year limited warranty.

Product Overview and Features

Natural Sounding Delay

Digital/analog delay with analog direct signal path, classic tape echo bandwidth.

Design Philosophy

Focus on natural decay, minimal filtering, and suitability for distorted tones.

Digital vs. Analog Design Choice

Rationale for Digital

Chosen for compactness, stability, and service-free operation compared to analog.

Controls Explained

LEVEL Control

Adjusts the volume of the delayed signal mixed with the dry signal.

DELAY Control

Sets the delay time, ranging from 25 ms (CCW) to 450 ms (CW).

REPEAT Control

Controls the number of repeats, from one (CCW) to infinite feedback (CW).

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