The Moogerfooger MF-104M Analog Delay from Moog is a bucket-brigade analog delay (BBD) with tap-tempo capability and up to 800ms of delay.

Based on the original MF-104 designed by Bob Moog, the MF-104M employs a 6-waveshape LFO for modulating the tails of your delays as well as creating a variety of other delay-based effects. Controls include LFO Rate and Amount, as well as adjustable Feedback and Drive.

All of the unit's parameters can be controlled with a variety of sources, including MIDI via the pedal's 5-pin DIN input as well as externally produced control voltage or optional expression pedals. The Feedback Insert allows you to incorporate another stompbox or outboard effect for further sonic manipulation. Its Spillover feature lets you choose if the delay will trail off or end abruptly when the pedal is disengaged.

The Moog Moogerfooger MF-104Z Analog Delay pedal was a limited 2005 reissue of the MF-104 Analog Delay designed by Bog Moog in 2000. It contains many of the same features, including Drive and Loop Gain, but also offers a slightly longer delay time than the original, clocking in at a little over 1 second.

Controls Drive: From -7dB to +28dB of input signal gain or attenuation
Output Level: Use to optimize overall Output volume
Mix: Cross fader control to set the ratio of wet to dry signal
Time: Control range of 40 ms - 800 ms of analog delay time
Short/Long Range: Select between a short, bright delay 40 ms to 400 ms and a long, dark delay 80 ms to 800 ms
Feedback: Continuous control of Delay line output fed back to Delay input from no Feedback to infinite.
Waveshape: Selectable 6 waveshapes LFO for modulating the Delay Time
Rate: Controls the LFO Rate from 0.05 Hz to 50 Hz (Wider range available via CV and MIDI)
Amount: Controls the overall Amount of LFO modulation of the Delay Time
LEDs Time LED: The LED is red when controlled by the Time knob, and Green when controlled by Tap Tempo
Level LED: Bi-Color LED displays input signal for optimum processing level
Bypass LED: When the effect is on the Bypass LED is green. When in Spillover mode the Bypass LED is orange. When the effect is off the Bypass LED is red
Rate LED: Indicates both the Rate and Waveform LFO settings. The LED is red when the Rate is set from the front panel, green when set by Tap Tempo, and orange when the LFO is synced to MIDI clock. Note: When synced to MIDI clock, the Rate control is quantized to select only rhythmic subdivisions of the MIDI clock tempo
Tap Tempo: Tap Tempo control assignable to Delay Time or LFO Rate by holding down the switch. Time LED or Rate LED will flash Green to indicate Tap Tempo assignment
Spillover Mode: Press and hold Bypass to engage/disengage Spillover Mode
I/O Audio In: 1/4" (6.3 mm) TS jack that accepts any instrument-level to line-level audio signal
Mix Out: 1/4" (6.3 mm) TS jack with adjustable output level for instrument- or line-level output
Delay Out: 1/4" (6.3 mm) TS jack that supplies wet-only output
Feedback, Time, LFO Rate, Mix, LFO Amount: 1/4" (6.3 mm) TRS jacks that accept Moog EP-2 (or equivalent) expression pedals, or 0-5 VDC control voltages from either two-circuit (TS) or three-circuit (TRS) 1/4" (6.3 mm) jacks.
Feedback Insert: 1/4" (6.3 mm) TRS jack for inserting effects on the feedback loop of the Delay Line. Supplies line-level output
MIDI In: 5-pin DIN input for controlling the MF-104M via MIDI
9 VDC Power Jack: Accepts standard 9-volt center-positive barrel power adapter. 400 mA minimum required
Power Requirements 105 to 125 V AC
5 W 220 AC 50 Hz
Dimensions (L x H x W) 9 x 6 x 2.5" (228 x 152 x 64 mm)
Weight 3 lb (1.3 g)

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