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Aristotle
Score:
9

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Dimension C DC-2

Project: Blueshift (BOSS® DC-2 Dimension C)
Variant: Stock bypass with NOS NE570s, MN3007s, MN3101s for that extra MOJO

Build description

I spent ~2 months building this one. I took my time stuffing the boards because I knew it was a complex build. One day resistors(almost 100 of them), one day capacitors, another day ICs, another day drilling the enclosure, another day test fitting everything, another day for graphics etc. This was really important because misplacing something would be hell to track down with such a high parts count. I copied the graphics provided, but since I had already drilled the enclosure I use pulsar pro fx to make my own decals. I also used the BOM provided for mouser. I don’t think I could have pulled of this build without it. Everything fits soooooo tight. I only biased the chips to 3.4v. Once I plugged it in, I decided not to bias any further, it sounds great. I’ll noodle with it if I ever get my hands on an o-scope, but the recommended 3.4v bias already sounds amazing.

I can see why people rave about this pedal so much. The chorus is mild on setting one, and goes to rich and deep on other settings, on some it chimes. The four setting all have a distinct character. I think the four settings provided by roland originally were probably fine, they really got it right, but having the switches really lets you have a lot of combinations. It is really nice to be able to get such a deep chorus without all the wobble you see on other analog chorus pedals.

A damn fine project!

Modifications or part substitutions

Mods!?!? I was happy to get this in the 125B as it is!

CHITO
Score:
4

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OUT OF THE BLUE

Project: Blueshift (BOSS® DC-2 Dimension C)
Variant: Stock Bypass Wiring Version

Build description

AION Bill of Materials (BOM) religiously followed here. Most parts were purchased from Mouser Electronics. Other parts came from Small Bear Electronics & Tayda. I also used parts that I already had in stock. Strictly – NO VALUE substitution in this project.

BBDs, Clock Generators & Companders: CoolAudio brands

I opted for the “Stock Bypass” wirng method.

OpAmps: OPA2134 & TL072

I noted that there’s a typo in the Calibration Instruction. Correction should be: TR1 adjusts IC3 & TR2 adjusts IC9.
I followed the CoolAudio bias voltage – 3.36VDC & courtesy of a helpful Aion customer. The chorus effect is excellent! All the toggle switch combinations work with discernible effect changes. Very cool chorus effects! I tested the Blueshift extensively on the Clean channel my Fender 2×12 combo amp.

I will do further testing with the MN3207/MN3102 BBD/clock combination to see if there will be big differences in the chorus effect. I’m also looking forward to calibrating Blueshift further with the LabNation SmartScope. Overall, the Blueshift Chorus is indeed a challenging project to build but very rewarding once you get it working!

FYI, I use a P-touch 2730, Mac & Win compatible tape printer for the labels, 3M vinyl car wraps for enclosure color & aesthetics.

Thanks to Kevin for resurrecting the classic Boss DC-2 Dimension C Chorus. It’s a labor of love!

How many Boss pedals projects have you cloned? Try the Blueshift Chorus & tell us about it. Thanks.

Gordo
Score:
1

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Blueshift build

Project: Blueshift (BOSS® DC-2 Dimension C)
Variant: Stock

Build description

This is a serious amount of work to get a serious cool pedal. Nothing difficult here, just lots of work and stick to the material bill for best results. I did the chassis and graphics myself based on Kevin’s drill guide and everything fit with no issues. Fired up right out of the gate and spent a bit of time dialing it in. Much easier than most analog builds. Superb sounding pedal and the newest resident on my board.

Modifications or part substitutions

None. Totally by the BOM