DELUXE MEMORY MAN 550-TT
TAP TEMPO ANALOG DELAY with FX LOOP, MODULATION and EXPRESSION PEDAL CONTROL
Congratulations on your purchase of the Electro-Harmonix Deluxe Memory Man 550-TT (DMM550). The DMM550 is designed with high quality, new old-stock bucket brigade ICs for an analog delay sound equal to the original Deluxe Memory Man. In addition to Tap Tempo control of the delay time, the DMM550 also includes delay time modulation, an effects loop in the feedback path of the delay block, an input gain control, tap tempo divide and optional expression pedal control over five parameters: Delay Time, Feedback, Modulation Depth, Rate and Blend. The DMM550 is true bypass.
-CONTROLS and INDICATORS -
WARNING: Your Deluxe Memory Man 550-TT comes equipped with an Electro-Harmonix 9.6DC-200BI power supply (same as used by Boss® & Ibanez®: 9.6 Volts DC 200mA). The Deluxe Memory Man 550-TT requires 200mA at 9VDC with a center negative plug. The DMM550 does not take batteries. Using the wrong adapter may damage your unit and void the warranty.
KNOBS
DELAY Knob – Sets the delay time from 30 mS to 630 mS. As you turn the DELAY knob clockwise, the delay time will increase. It is normal for the noise floor to rise as the delay time increases. At the longest delay settings it is normal to hear ring modulation. If you tap in the delay time, the DELAY knob’s setting will be ignored until you move it again. If you turn the DELAY knob after tapping in a delay time, the DELAY knob’s setting will supersede the last tap tempo that was entered. Turning the DELAY knob, while listening to your echoes, will bend the pitch of your notes. The DELAY knob can also be used to set the maximum
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delay time for expression pedal control. N.B.: the TAP DIVIDE button functions have no effect on the DELAY knob; pressing this TAP DIVIDE button while the DELAY knob controls the delay time will not change the delay time.
FEEDBACK Knob – Controls the amount of signal that is circulated from the output of the delay block to its input. Turning the FEEDBACK knob clockwise increases the number of echoes. Setting the FEEDBACK control to its maximum clockwise position will cause the DMM550 to run-away, or self-oscillate. Alternatively setting the FEEDBACK knob to its minimum position will yield just one echo or repeat for each of your notes. The FEEDBACK knob is also used to set the maximum amount of feedback for expression pedal control.
DEPTH Knob – Sets the amount of modulation that is applied to the delay time. As you turn the DEPTH knob clockwise, the amount of modulation increases. Turn the DEPTH down to the full Counter-Clockwise (CCW) position to turn modulation off. The DEPTH knob is also used to set the maximum amount of modulation for expression pedal control.
RATE Knob – The RATE knob sets the rate or speed of modulation. As you turn the RATE knob clockwise the modulation rate increases. The DEPTH knob must be set above the full CCW position to hear the RATE knob change the modulation speed. Additionally, the RATE knob sets the maximum rate of modulation for expression pedal control.
GAIN Knob – Sets the input gain for the DMM550. As you turn the GAIN knob clockwise, the input gain will increase. The total gain range is -13 dB to +20 dB. The gain block is the first stage that the input signal goes through in the circuit. Both the dry and wet signals mixed by the BLEND knob go through the gain block.
BLEND Knob – The BLEND knob is a wet/dry control allowing you to vary the mix between direct and delayed signals at the OUTPUT jack of the DMM550. Set the BLEND knob to the full clockwise position for an output that is 100% wet. Set the Blend knob to full counter-clockwise for an output that is 100% dry. Setting BLEND anywhere in between will mix the wet and dry signals together. Additionally the BLEND knob sets the maximum wet/dry mix for expression pedal control.
SWITCHES & LEDs
BYPASS Footswitch and STATUS LED – The BYPASS FSW is used to toggle the DMM550 between effect mode and true bypass mode. The red STATUS LED will light up when in effect mode and turn off in bypass.
EXP. MODE Button and LEDs – The EXP. Mode button cycles through the six available expression modes: BLEND, RATE, DEPTH, FEEDBACK, DELAY and OFF. Each time you press the EXP. MODE button the DMM550 will advance to the next expression mode LED. An expression pedal must be plugged into the EXP. PEDAL jack to make use of these modes. A lit LED for one of the modes indicates the
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expression pedal will control that parameter. For example, if the RATE LED is lit, the expression pedal controls the modulation rate, from slowest (expression pedal = toe up), to the RATE knob’s current setting (expression pedal = toe down). When no EXP. MODE LEDs are illuminated the expression pedal is disabled while it remains plugged into the DMM550. The setting for the EXP. MODE is saved and recalled when power cycling.
TAP Footswitch – The TAP FSW is used to tap in the delay time. Stomp on the TAP FSW two times and the delay time will jump to the time between taps (if all the TAP DIVIDE LEDs are off). If you tap more than twice, it will average the tap tempo for all taps, it will stop averaging if there is more than 2 seconds between two consecutive taps. The DMM550 will always take into account the TAP DIVIDE setting when determining the delay time from the tap tempo. For example, if your tap time is 1 second and TAP DIVIDE is set to eighth notes, the actual delay time will be 0.5 seconds. The maximum delay time, when tapped in, is 1.5 seconds; though at this delay time the effect will sound quite lo-fi. The DMM550 will save and recall the tap tempo when power cycling. In addition, if an expression pedal is controlling the delay time, the Tap Tempo and TAP DIVIDE setting will determine the maximum delay time of the expression pedal.
N.B.: The delay time for the DMM550 is always set by the last method used. If you tap in a delay time, the DELAY knob’s setting is ignored. After tapping in a delay time, if you turn the delay knob, the tap time will be forgotten and replaced by the current position of the DELAY knob.
TAP FSW HOLD TO PRESET FEEDBACK – If you press and hold the TAP FSW, the DMM550 will slowly ramp up to a high FEEDBACK setting. After releasing the held TAP FSW, the feedback amount ramps back down to the current FEEDBACK knob setting. The high feedback setting that the DMM550 ramps up to is set at the factory but may be adjusted when you are holding down the TAP FSW, if held for more than 1 second. If you do not like the setting chosen at the factory, simply turn the FEEDBACK knob to your preferred setting, while the TAP FSW is held down. It may take a few tries before nailing the perfect setting. Release the TAP FSW to save the feedback hold setting. The DMM550 will remember the TAP FSW HOLD setting after power cycling.
If you want to restore the original factory setting for the FEEDBACK HOLD, press and hold the EXP. MODE button while applying power to the DMM550. When you see all 5 expression mode LEDs light up, the factory setting has been restored, you can now release the EXP. MODE button.
BEAT LED – The green BEAT LED either blinks at the current delay time setting (if delay time is set by the DELAY knob) or the tempo that you tapped in. Cycling through the TAP DIVIDE settings will not change the BEAT LED blink rate. If you are modulating the delay time, the change in delay time due to modulation will be reflected in the BEAT LED.
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