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Post by mateo » Sun Nov 08, 2009 11:47 am

As I'm putting together my first system, I've started wondering what to do about multiples:

1) Grab a couple of a-180s and sticking them in the case? Easiest option, but not HP efficient. How many would I need for 9U anyway?

2) Stick some a-180s in a small external case (like that IKEA picture frame)?

3) Grab one of those Ad Infinitum racks? But it has an open back, so I would need so kind of enclosure for that.

4) Grab a couple of BAMs and put them in the case instead? How many of those?

5) Something else entirely?


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Post by wetterberg » Sun Nov 08, 2009 12:03 pm

1) If you're going to fret over 4HP you might as well get another case straight away. I get by with a single mult for 12U, but could do with another.

2) Sure. See 1)

3) That's a good use of an extra 1U in your rack - no need for enclosure though.

4) What makes that different from 1)?

5) Yes, diy. Drill a ton of holes in a cigar box, put in minijacks and wire everything up together.

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Post by dbuyense » Sun Nov 08, 2009 12:52 pm

I think the Tiptop banana style cables are going to be a great alternative.

4) I think the .bam's are more important for note cv's to a bunch of oscillators , attenuation loss for other modulation cv's like lfo's don't seem to be too much of a problem. I'm currently splitting a note cv signal through a non buffered normal multiple to two oscillators and I'm not really having tracking problems but its been suggested to use a buffered multiple when controlling multiple oscillators.

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Post by daverj » Sun Nov 08, 2009 1:32 pm

If you have one of the Doepfer portable cases, some people have cut holes in the wood strips at the top and bottom to mount multiples in.

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Post by loudone » Sun Nov 08, 2009 3:01 pm

the new modular world road cases come with 6x4 multiple on bottom

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Post by ST UF FLI N EAR » Sun Nov 08, 2009 3:11 pm

1) you're sticking them in the case... which case?

when its a diy, i would add an aluminum strip over the whole width. ( like on the MW)

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Post by dougcl » Sun Nov 08, 2009 3:28 pm

One M31 is about right for 9U.

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Post by ersatzplanet » Sun Nov 08, 2009 4:16 pm

I have a few multiples in my rig. I started with the simple Doepfer A-180 which I modified to normal the 2 4-way mults to be a 7way if the 5th jack isn't used) but no have bought a couple of A-182 which I find are much nicer to use in a live or experimenting environment. The switched busses adds allot of flexibility at the expense of just 2HP.

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Always looking to trade for Doepfer P6 cases

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Post by mateo » Sun Nov 08, 2009 5:38 pm

Thanks for all the responses! I'm planning on a Monorocket Mission 9, so that limits my options. I'm not terribly worried about HP, I've just gotten the impression from a number of posts here that it's a waste of space to use up HP for passive modules.

My comment regarding an enclosure for #3 is because I want things to be (relatively) portable, and I wouldn't want to have to lug a rack around *just* for the multiples. In the studio it'd be fine though.

As for the BAMS, they're interesting not only because they're buffered, but because they also acts as attenuators/amplifiers. Considering I'm planning on having quite a few oscillators, I think having at least one of them would be essential; combined with the tiptop cables I think my needs would be covered.

The model 31 looks great, but I'm going to steer clear of plan b for the moment....

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