#1 AUTH DEALER- Moog MF-104Z Analog Delay Moogerfooger

MOOG MF-104Z ANALOG DELAY.

The MF-104Z sounds fantastic and like all Moogerfoogers it has controls that allow you to vary the sound in a variety of ways that you can only do with a Moogerfooger.

A delay circuit produces a replica of an audio signal a short time after the original signal is received. If you listen to the original and the delayed signal together, the delayed signal will sound like an echo of the original. If you then mix some of the delayed signal with the original signal and feed the mixture to the input of the delay circuit, the delayed output will be a string of echoes that die out gradually. You can determine how far apart the echoes are by adjusting the delay time of the delay circuit, and you can determine how fast the echoes die out by adjusting the amount of feedback from the delay circuit output to its input. In addition, you can determine how loud the echoes are by adjusting the mix between the original signal and the signal from the delay circuit output.

Today there are three types of delay devices: tape, analog and digital. The first delay devices used magnetic tape to create the delay. The sound was recorded on a moving tape and then played back after the tape had moved a few inches or so. Then, during the early 70s, large-scale semiconductor analog delay circuits became available. These were called bucket brigade delay chips, because they functioned by passing the audio waveform down a chain of several thousand circuit cells, analogous to water being passed by a bucket brigade to put out a fire. Each cell in the chip introduces a tiny time delay. The total time delay depends on the number of cells and on how fast the waveform is clocked or moved from one cell to the next. Analog delays were less noisy, easier to use, and more reliable, and came to be more widely used than tape echo units.

More recently, digital delay units have come into use. In a digital delay unit, the sound signal is first converted to numbers. The numbers are stored in a digital memory for a certain time, and then retrieved and reconstructed into the delayed audio waveform. One significant difference is that the particular frequency and overload contours of well-designed analog delay devices generally provide smoother, more natural series of echoes than digital delay units. Another difference is that the echoes of a digital delay are static because they are the same sound repeated over and over, whereas a bucket brigade device itself imparts a warm, organically evolving timbre to the echoes.

The MF-104Z Analog Delay is unique because it combines authentic, finely-tuned vintage analog bucket-brigade delay circuitry with total voltage control of all three performance parameters.

Drive and Output Levels allow you to set-up the Z to match the type of signal you want to delay from low level signals (vocals,guitar) to strong signals (studio console output, drum machine). The Z is designed to work with them all.

Delay time: from slightly less than 50 msec to slightly more than 1000 msec.

Mix: Pot Control from completely Dry to completely Wet or anything in between.

Feedback Control mixes a portion of the delayed signal with the signal from your instrument. Feedback control can generate a single echo, sustaining echoes, or echoes that build up in chaotic ways.

Switchable Internal Loop / External Loop selects the feedback path. In the Internal Loop position the feedback path goes directly from the output of the delay back to the input. In the External Loop position the feedback path goes through the Loop Out Jack and the Loop In Jack. This gives you an opportunity to insert signal processing in the feedback path, thereby enabling processing of the echoes as they are generated. Very cool with another Moogerfooger (unbelievable with the MuRF).

Loop Gain controls the signal level which is applied to the Loop In jack when theExternal Loop is on.

Here is a listing of the jack inputs and outputs on the back of this incredible effect:

INPUTS:
Audio In, Feedback Amount, Delay Time, and Wet/Dry Mix each of these can be controlled from a Moog Expression Pedal thru individual jacks on the back of the Z.

OUTPUTS:
Mix Out and Delay Out - the Output Level on the front panel adjusts the levels of the direct and delayed signals that appear at the Mix Out and Delay Out.

AND..
Loop In and Loop Out as previously mentioned.

FEATURES:
- DELAY TIME rotary control, which adjusts the delay time from slightly less than 50 milliseconds to 500 msec in the SHORT position; 100 msec to slightly more than 1000msec (1 second) in the LONG position.
- MIX rotary control, which adjusts the mix between the direct and the delayed signals.
- FEEDBACK rotary control, which adjusts the amount of delayed signal that is fed back to the input.
- INT. LOOP-EXT. LOOP switch routes the feedback either directly or through an external effects processor that you hook up. For example, inserting the MF-102 Ring Modulator in the feedback loop will create echoes that change timbre as they die out.
- DRIVE rotary control, which adjusts the gain of the audio input to the delay.
- OUTPUT LEVEL rotary control, which balances the delayed signal with the bypassed signal.
- LOOP GAIN rotary control, which sets the gain of the external feedback loop.
- LEVEL, a three-color LED that is used to set the DRIVE control.
- LOOP LEVEL, a LED that aids in setting the external loop level.
- BYPASS, a two-color LED that tells whether the delay is active or bypassed.
- ON/BYPASS, a rugged, smooth-acting stomp switch.

JACK PANEL FEATURES:
- AUDIO IN 1/4" phone jack - accepts any instrument-level or line-level audio signal.
- MIX OUT 1/4" phone jack - delivers the delayed and the direct signals, depending on the setting of the MIX control.
- DELAY OUT 1/4" phone jack - delivers just the delayed signal.
- TIME, MIX, FEEDBACK, all of which are stereo 1/4" jacks that accept moogerfooger EP1 (or equivalent) expression pedals, or control voltages from two-circuit or three-circuit 1/4" jacks.
- LOOP IN - 1/4" phone jack - provides access to the feedback loop for connecting an external processor.
- LOOP OUT 1/4" phone jack - provides access to the feedback loop for connecting an external processor.
- +9V POWER INPUT jack - accepts standard 9 volt power adaptors (power adaptor included).

GENERAL SPECS:
- CASE: Black panel with hardwood sides - classic analog appearance.
- DIMENSIONS: 9" x 6" x 2-1/2"
- NET WEIGHT: 3 lb
- SHIPPING WEIGHT: 5 lb, including power adaptor and instruction manual.
- POWER REQUIREMENTS: 105-125 volt, 5W or 220 volt power adaptors available.