Showing posts with label A-175. Show all posts
Showing posts with label A-175. Show all posts

Friday, June 21, 2013

Quick Tip XIII : Improvised Multiples

The bigger your Eurorack gets, the more often you need longer cables.
In case you don't have enough long cables, i would advice you to put an A-180(-2) Multiples module somewhere in the middle of your system so you can extend your cable-reach from there.
A-164-1 as
improvised
Multiple
If you don't have enough multiple modules, you can also look if you have other options.

A-165 Trigger
Modifier Inputs
You should know that some Doepfer modules have multiple in- or outputs that are interconnected in a way that they can act as multiples as well...

You can recognize these in/outputs by the connected line between the mini-jacks.
The A-175 Voltage Inverter  and A-165 Trigger Modifier  are nice examples,  both have two separate channels, so also two multiples.
The A-164-1 Manual Gate module can even be used as 3 separate multiples.
The 2 outputs on the A-119 External Input module are connected together too, as well as the audio inputs on the A-126 Voltage Controlled Frequency Shifter.
A few more Doepfer modules also have this option, let me know in the comments if you find other modules that have this possibility.

This 'trick' works for CV signals and for audio but I should mention that if you use these modules as an improvised Multiple, most of the times you cannot use the module's original functions at the same time.

Tuesday, June 21, 2011

A-175 Dual Voltage Inverter

The A-175 (Dual) Voltage Inverter simply does what the name says; it contains 2 separate inverters that invert the voltage of incoming signals; an input of +4 V will be output as -4 V, an input of -3 V will be output as +3 V, and so on.
Two LEDs give a visual indication of the (positive or negative) output signal for each inverter.

I use this module a lot, as i blogged before, most of the time both inverters are constantly attached to my A-174-1 Joystick module. I am thinking of buying another one soon, because this module is just so useful.
I love the fact that each inverter has 2 inputs, so they can be used as a (mini) multiplier.
In this way you don't have to 'lose' the original signal.

As input source you can use almost any CV source, not just the ones that produce both positive and negative voltages. 

A simple LFO will do, and the Joystick and Modulation Wheels are also very handy basic controllers.
The A-175 manual has some interesting user-examples, including a basic panning patch and a scale/arpeggio-mirroring patch, but again; possibilities are endless, the only limit is your imagination.

Sunday, July 04, 2010

A-174-2 Modulation Wheels CV Source

Last week i received my latest A-100 Module.
It's the A-174-2, Modulation Wheels CV Source, a module with two wheels.
I got the original version, with a spring loaded wheel at the left side with bipolar voltage output, and a wheel without spring at the right side with only positive voltage output.

It doesn't make any sounds, but it does offer me more (voltage) control over the sound. Both wheels deliver two identical voltage outputs.

First times i tried it out was in combination with the filters, adding voltage to the cutoff range and adding resonance... very basic stuff, but impressive.
This should also work very well with the Voltage Inverter Module (A-175), i can't wait to try this (and more) out soon.

I can't say it is the prettiest module because the wheels are quite large, but they feel great and seem to react very accurate.

Sunday, March 28, 2010

Best Friends Forever I

Van PatchPierre

A few times a year i unwire my whole A-100 system, it's like putting up a fresh canvas. New inspiration, new sounds in this case.

There are a few thing i never unwire, because i use them that much.

My first example is this one; The A-174 Joystick and the A-175 Dual Voltage Inverter.
They both sit neatly next to each-other in my rack, and i always keep the two yellow cables between them connected. What a dynamic duo...

I use my A-174 the most for controlling the cutoff of filters or for controlling the speed of the A-147 Voltage Controlled LFO module

The A-175 is such a simple but effective module, and its inputs are internally linked, so you can use the other socket as a mini-multiple

This allowes you to have both control voltages and its identical inverted voltages available at the same time.