WALRUS AUDIO Meraki Analog Stereo Delay – LTD ED Walrus Audio

Meraki stereo analog delay uses 8 MN3005 chips to create warm, rich repeats. Capable of 1200ms of delay time with parallel, ping-pong and series delay modes. Independently control the delay times and modulation of the left and right channels to create syncopated repeats or keep them locked in to the same timing for classic repeat sounds.

• 9VDC 500mA, Center-Negative Required
• True-Bypass or Buffered Bypass for Trails

Control Overview

Mix: Adjust the overall level of the repeats in both the left and right channels. Full Wet/Dry Mix; 50/50 is around 2 O’Clock. Note: This control adjusts the left and right simultaneously.

Feedback Left: Adjust the amount of repeats in the left channel, from a single repeat to full oscillation.

Feedback Right: Adjust the amount of repeats in the right channel, from a single repeat to full oscillation.

Mod Depth (Mod Rate): Use to adjust the depth of modulation in the repeats, creating a chorus/vibrato effect in the repeats. Hold the bypass switch and use the mod knob to adjust the mod rate.

Time: Use to adjust the delay time. Clockwise for longer delay times, counter-clockwise for shorter delay times. From 80-1200ms. Use 1/8th division for the shortest delay time. 

Tone: Use the Tone control to adjust a Tilt EQ in the delay lines. Clockwise will cut the lows and boost the highs, counter-clockwise will cut the highs and boost the lows. 

Tap Division Left Switch (Mod Wave Shape): Choose between quarter note, dotted eighth and eighth note repeats in the left channel. Hold the bypass switch and use the left division switch to choose between Sine, Square and Random wave shapes. 

Tap Division Right Switch (Mod Phase): Choose between quarter note, dotted eighth and eighth note repeats in the right channel. Hold the bypass switch and use the right division switch to choose between 0-90-180 out of phase. 0 is in phase, for classic mod sounds, 180 is out of phase for a wide mod sound with the left rising while the right falls.

Feedback Mode Switch: Choose between Parallel, Ping-Pong, and Series delay lines.

Parallel: Left and Right feedback paths are independent of each other. Left repeats feedback into the left input. Right repeats feedback into the right input. 

Ping-Pong: The Left repeats feedback into the right input, the right repeats feedback to the left input; The repeats bounce from one side to the other.

Series: The Left repeats feedback into the Left channel and is sent to the input of the Right delay line as well. The right repeats, with the addition of the left repeats feedback into the right input. Use this mode to create interesting syncopated delay rhythms. 

Sync/Left/Right Switch: Use to select which side of the pedal you want to adjust. Sync is both left and right, L is Left only, R is right only.

This is where the magic of the pedal can happen. You can have fully independent time, divisions, mod depth/rate/shapes. With mismatched timings, I like to set the feedback JUST before it oscillates, then play with the divisions to create interesting pad like sounds. Tip: Use MIDI to get really creative with how you adjust timings to create an instrument out of this pedal.

Bypass Switch: Use to turn the pedal on/off. Hold to enter secondary mode.

Bypass Modes: Trails (Default) or Relay (No-Trails). Hold Bypass while plugging in the power connector to change modes.

Tap Tempo Switch: Use to set the delay time. Hold to maximize the feedback (Oscillate) in the left and right channels, release to set back to levels on the feedback knobs.

External Tap/Expression: Use to control the tap tempo or use an expression pedal to control the time or modulation depth controls. Internal dip switch to change between external tap or expression.

Dip Switch Settings:

Tap – 1 ON, 2 OFF, 3 OFF

Expression – 1 OFF, 2 ON, 3 ON

MIDI In/MIDI Thru: Connect MIDI cable to control the digital parameters of this pedal.

Change MIDI channel: Before applying power, hold down both stomp switches and then apply power. The LEDs will start to flash. While still holding down the switches, send a MIDI message assigned to the channel that you want the pedal to be on and then the pedal will enter normal operation and you can release the switches. 

MIDI CC Numbers and Values

Control	CC Number	Value Range
Division L	27	0-42; 43-85; 86-127	.1/8; 1/8; 1/4
Division R	28	0-42; 43-85; 86-127	.1/8; 1/8; 1/4
Sync	26	0-42; 43-85; 86-127	P-P; S; P
PPPS	31	0-42; 43-85; 86-127	L; R; S

 

Control	CC Number	Value Range
TIME	14	0-127
MOD Depth	22	0-127
TIME R	15	0-127
MOD Depth R	23	0-127
Mod Rate	24	0-127
Mod Rate R	25	0-127
Mod Shape L	102	0-42; 43-85; 86-127	Square; Random; Sine
Mod Shape R	103	0-42; 43-85; 86-127	Square; Random; Sine
Mod Phase	104	0-42; 43-85; 86-127	180; 90; 0
Bypass	29	Off 0; On 127
Fbk Ramp	85	Off 0; On 127
Clock Bypass	89
Tap Tempo	30