SKU: 61650992620

MSW SY-1 / Pearl Syncussion Expanded I/O interface

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Description

MSW SY-1 / Pearl Syncussion Expanded I/O interfaceExpanded I O Interface for MSW SY 1 or Original Pearl Syncussion Features: CV input to filter frequency or Decay Split outputs (Stereo) or Original Mixed outputs Split Trigger Inputs (stereo TRS, Left Trig 1, Right Trig 2) Split Tune Inputs with V O Trim (stereo TRS, Left VC 1, Right CV 2) Includes: SY 1 EX: Interface, 2m TRS 3. 5mmm MIDI Cable, 2x 3. 5mm to 1 4" TRS adapter Installation instructions: The main output can be configured in 2 different

Expanded I/O Interface for MSW SY-1 or Original Pearl Syncussion

Features:

  • CV input to filter frequency or Decay
  • Split outputs (Stereo) or Original Mixed outputs 
  • Split Trigger Inputs (stereo TRS, Left Trig 1, Right Trig 2)
  • Split Tune Inputs with V/O Trim (stereo TRS, Left VC 1, Right CV 2)

Includes: SY-1 EX: Interface, 2m TRS 3.5mmm MIDI Cable, 2x 3.5mm to 1/4" TRS adapter

Installation instructions:

The main output can be configured in 2 different ways:

Original Syncussion Configuration: 

This has the two voices MIXED into a MONO output.

Modification to SY-1 Board: None.
Modification to MIDI Board: Connect the supplied jumper to the shorter header pin 1 on one end and the two pin header on the other

Mod Syncussion Configuration: 

This has the two voices SPLIT into individual channels via a TRS 1/4" Phone plug (TRS to 2x TS Phone plug required)

Modification to SY-1 Board: Remove R145 and R146 (upper right corner of control board)
Modification to MIDI Board: None

Connect the 2 pin header with short wires to the pads left by R145 and R146 as shown below

 

Channel 2 Pitch Control: 

To control the pitch of the second voice, a resistor needs to be removed and the CV control for that channel must be connected

Modification to SY-1 Board: Remove R2 on control board, replace with wire to MIDI board (CV2)
Modification to MIDI Board: None

 

Channel 1 and 2 Mod Wheel destinations (optional): 

MIDI Mod Wheel can control one additional parameter per voice

Instructions for these mods are located in the BOM, MODs tab:

Michigan Synth Works SY-1 1.1 BOM OFFICIAL - Google Sheets

 

 

 

 

 

 

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SKU: 61650992620

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4.4 ★★★★★
Based on 6 reviews
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Chrystal
Chelsea, US
★★★★★ 4
Cute
Size: 6.5, Color: Black (Pu)
Cute, comfortable.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 14, 2026
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SparkaliSB
Omaha, US
★★★★★ 5
Trying to get what's in picture
Size: 9, Color: Natural Nbpu
Amazon said my size was a 10. So i ordered a 10. Waaaay too long, wide big in general, and I have a wide foot so I was pleasantly surprised. Company did not offer any color in size 9.5 but according to their size guide I "might" fit into a 9! Again, pleasantly surprised that i totally did and even when I put in my "Dr. Scholl's" inserts, i have slight wiggle room for when feet swell. Overall I am happy with the shoe fit, comfortability and height...not that I'd wear these for more than 8 hrs., but comfy enough for a wedding or to wear to work when I have a "mostly office day" instead of out in the yard. HOWEVER... i loved the color and suede-ey look/feel pattern of the size 10. It was exactly as picture/info described. But I'm not sure what happened to the size 9? wth? Although i ORDERED exact same shoe/color but in smaller size...what I got was a much lighter color, and NOT the suede fabric...more nubuck. Bu inside of shoe had same info/tag as the 10. Really hoping that it was a packing/labeling error. Will try one more time to order the 9, in the same 'name' fabric. Fingers crossed that I get what I ordered/want. Otherwise it'll be a return and less stars.
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Reviewed in the United States on November 4, 2024
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donald j.
Omaha, US
★★★★★ 5
I can’t say anything but I really love them
Size: 6, Color: Natural Nbpu
They look great. They feel great
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Reviewed in the United States on April 10, 2026
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Babiche Design
Boise, US
★★★★★ 3
stiff like cardboard tops of shoes
Size: 5.5, Color: Natural Nbpu
These shoes are good enough quality and cute cute - even fit great, EXCEPT the faux leather top (part that encircles your leg) is so stiff, that when you walk, it cuts into your leg like hard cardboard making it difficult to walk comfortably. I do like them otherwise, but can't stand the hard, unbending top of these shoes.
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Reviewed in the United States on January 15, 2025
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Pamela
Massapequa, US
★★★★★ 5
Great for wide feet
Size: 9, Color: Black Nubuck
Beautiful- great for wide feet, camouflage slight swelling in feet / ankles beautifully. Look great with everything; adds a touch of elegance & rock star. Super fast shipping too!
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Reviewed in the United States on November 8, 2025

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