I finally scored a dm3 off the bay for a decent price!

Can't wait to compare to my Danelectro Reel Tape!!!

Nice, welcome to the club!

DM-3 is the Boss

take care of those precious analog chips!!

Have DM-3 will travel.

Not sure what that means but enjoy it. Tavo isn't right about everything, well he's right about a lot of things, and the DM-3 is one of them. One of my best gear acquisitions ever.

Play through it in excellent health.

What is a DM-3?

Boss DM3 Anolog Delay Pedal Bear, the holy grail for slapback! A really great sounding pedal!!

I hope it's as good as folks say...this gear bender is gonna get me in trouble.

Thanks Jayce., When I played out I used an old tube Echoplex until I got sick of all the maintenance and I went to an analog delay pedal made by MXR if memory serves me correctly that filled the bill.

I would love an Echoplex, but as you said maintenance..

The MXR Carbon Copy is a favourite of a lot of players aswell.

I have an RE201 and it needs serviced but it seems money is better spent on the DM3 right now.

Make sure you power it correctly. Takes 12VDC not 9. Get a Pedal Power or similar.

Make sure you power it correctly. Takes 12VDC not 9. Get a Pedal Power or similar.

Or do the Mod if your handy with a soldering iron.

I got one the other day...the switch was not operating properly. I'm gettin' a new switch and the cat is throwing in an ACA 12v power supply

Yeah I'll be getting a power supply. I don't use a lot of pedals so I have a homemade pedal board I can plug into that work great for me.

just remember it wants to see 12v ACA not a boss PSA 9v supply.

this part is for Jet Bunny who asked about the daisy chain trick but I cant find the thread he asked in>>>

yes pluggin it into a daisy chain will bypass the resistor diode pair but they are still there and I cant substantiate why it sounds better once you do the actual mode on the circuit board so that it can receive full voltage from a standard regulated 9v power supply but if I recall, this diode runs in parallel not series (schematic??) so taking out the resistor - diode by tossing a daisy chain on it with another pedal allows it to run but with that resistor - diode still physically there, a small loss of voltage to the analog chips particularly the compander circuit ( creates the headroom for the delay chip) still occurs..

REMOVE that resistor with a wire jumper and it just sounds better.. I'm probably nuts (ie just dont understand analog delay circuits well enough) but those of us that plug our gretsch into the Boss DM-3 with either the correct vintage Boss 12V ACA power supply or having done the 9v PSA mod, can easy go "YEP" sounds much better.. guitar is a tad bit more full and the initial slap back isnt so smeared, or less so than running the wrong power supply into it.

He may sound crazy but he knows what he's doing!!

On the left hand side of my pic you can see the two jumpers (at R3), its just two bits of wire where a resistor and diode once were.

When I get my DM3 back I think I may want the mod done. I have a home made pedal board with a couple of Distorsion and a Comp that I would like to hook up the BM 3 also. Using two different power supplys could be a hassel though.

What power supply you running Dusty?

So Tavo...when you mean daisy chain, you mean that it's a part of a pedal board (or something like that) with other pedals in series? All this DM-3 talk and I picked one up. I just have one of those boss portable pedal boards with 6 pedals.

Brad'o ...That pedal board you have has a power supply with maximum output of 200ma and thats if you connect the wallwart directly to the daisychain. If you run into the TU-2 through put there is even less. All saying that I think the Boss DM-3 takes some more power to run than the overdrive boxes and thats from an ACA 12V supply its designed for, not the modern PSA 9v supply you have. The DM-3 will function although it will have a darker more smeared slap back with that set up. Eventually the resistor in the DM-3 will burn out. Thats what happened to my first CE-2 chorus on my BCB board eons ago. Opened my eyes to using proper power on these bucket brigade analog pedals

Okay so I'm not incredibly knowledgable with electronics/electricity...I typically use a delay, a tuner and my atomic brain and that is it. I have rigged an old suitcase like a pedal board and plug the said pedals into a power strip that is also in the case. Anything wrong with doing this? I've been doing it for some time with no issues and hate to invest in a pedal board/power supply for three pedals... ??

So your just running wall warts?

The mod will allow the DM3 to run of a 9V wall wart no dramas!

I have not a power supply as of yet the cat said he was gonna send an ACA12...but now he is saying he doesn't have one. I need an ACA 12v....where can I get one? I'm not sure about doing the mod. Wouldn't it be best to keep the pedal stock?

DM-3 isnt uber collectable like an early Boss DM-2 with the socketed chip. Plus something always worth mentioning with any sort of vintage piece of electronic audio equipment. Something collectable doesnt mean it has to operate and sound like it did when it was first made and realistically its almost impossible for that because of components values drifting.

In particular, the electrolytic caps that start drying out on older units.

So for a good warm and dynamic slap back on the dm-3

either get an expensive voodoolabs power unit with the 12v switch

find a vintage boss aca 12v power adaptor or

the mod (jumper the resistor )

or keep it on a 9v daisy chain with another pedal in line operating at a bit less voltage for a darker slap back until the resistor burns out.