#83

Info about the video from Walker:

90% of the video is just a square wave from the DPO straight into the Left input of the QPAS. The only real exceptions to that are the “Ping” section where it’s a gate stream from MATHS, the “stereo-to-stereo/stereo-to-mono” patch that puts the DPO’s Sawtooth in the other input, and the “sweetener” section near the end where I used a loop from Morphagene as the source.

8 Likes
#84

Giving me GAS for three more sisters.

8 Likes
#85

ahhh man … preordered ***20 characters

#86

yoooooooo was thinking i needed a second sisters but like… WOW.

#87

Live event (assumig the stream gets started) at PCA to show off the module.

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#88

From the live stream: Shipping early February (tentatively the 12th).

#90

tony demoing smile pass with alice coltrane gave me a huge grin

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#91

demoing anything with Alice Coltrane is just cheating… couldn’t make it sound bad if you tried :wink:

#92

I was there in person. Should have stayed home and worn headphones. (the room wasn’t great for stereo imaging)

#93

You can always check the video online. You can’t be there a second time (and get a free t-shirt)!

3 Likes
#94

[quote=“saintcloud, post:89, topic:19203”]
Listening to the MN demo with headphones did me in.[/quote]

Yeah, I pre-ordered. :sigh:

#95

I was a little disappointed that they have been playing up QPAS as stereo without giving examples of a dual mono application. Surely it would be a great way to mix and spectrally isolate two voices?

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#96

This looks and sounds great. Just trying to get my head round what it actually does :grinning:

So each channel (L+R) is a dual multi-mode filter, and ‘radiate’ controls the spacing between the dual filters cutoff on each L+R channel (like the span control on 3 Sis)?

Luckily for my wallet I don’t have space for this (and am quite happy with 3 Sis and its spectral mixing joys for now).

#97

Walker Farrell mentioned he was going to show that in an upcoming video.

I’m also curious about patching it in serial, cross-feedback, self-patching etc.

#98

Im wondering about this too, they explicitly mention its possible to control all four filter cores so both radiate parameters control one filter core plus the center freq just makes for 3 positions?
Wheres number 4?

Ah wait i get it. Radiate 1 moves filter 1 up and filter 2 down while radiate 2 moves filter 3 up and filter 4 down, ofc this works also the other way around.
Freq just offsets the whole ensemble
Ingenious!

#99

Lord QPAS or QPASimodo sounding great :heart: Filters in Stereo and Analogue domain are scarce in Proaudio, i could easily imagine this liked by Producers and Mixers alike.
And i‘m still quite intrigued abt the RXMX-this is a concept i never scoped before

1 Like
#100

Some parallels between QPAS’s radiate controls and Three Sisters’ SPAN. Hordijk’s Twinpeak generally keeps its two peaks independent. A unit like the QMMF-4 is mostly just a block of four separate filter modules behind one faceplate: you can control them (and pitch each) independently, but the downside to that approach is you pretty much have to control them independently.

1 Like
#101

I’ve owned Three Sisters, Belgrad, and Twin Peak. Comparing features and my impressions of them:

Three Sisters: Three filters with separate or mixed inputs and outputs. Can switch between triple bandpass and a lowpass/variable bandpass/highpass config. Controls are Freq and Span (adjusts the low and high bands’ distance from the center). Has negative Q, which is pretty interesting. The resonant sound of the filter can never really be dialed out. Nice for self-oscillation.

Belgrad: Two peaks, with switchable states and a single input and output. Frequency, span, and level balance control. Switchable cross-modulation between peaks. It’s flexible, has lots of variety in how it sounds with self-oscillation, but to me it felt harder to use than Three Sisters (maybe due to feeling like there were too many options selected in a discontinuous way) and the general sound for subtractive use isn’t as nice as Sisters.

Epoch Twinpeak: Morphs from a single peak lowpass to dual peak variable width bandpass (with a high Q it might as well be two bandpasses) – so it’s missing highpass unless you patch that externally via inverting and mixing with the dry signal. Two inputs (crossfaded manually), one output. There are knobs to set the two peaks separately, and each can be modulated separately, but there’s a single V/OCT input that applies to both. (Functionally, I prefer that setup because you can FM one peak while keeping the other clean and still tracking pitch.) Does not do sustained self-oscillation but pings amazingly well, and the crossfade input lets you hybridize between pinging and “traditional” use. I honestly don’t like the character of its resonance as a “normal” filter for a lot of purposes, but I do like it applied to a dubby delay.

QPAS: Obviously I don’t own it, yet :slight_smile: Like Twinpeak the resonance never goes into sustained self-oscillation, but I like its sound character a lot better than Twinpeak. Ringing out after the input has decayed sounds gorgeous IMHO, as does the “smile pass” as a phaser. It seems a bit unfortunate that it lacks a CVable frequency offset between channels, which would be helpful for serial or independent mono, or the FM-vs-no-FM trick I like with Twinpeak.

6 Likes
#102

Very curious to compare this to the SSF Stereo Dipole when it comes out too, seems like they have different enough functionality to justify some serious digging. Both sound absolutely amazing in demos so far. Andrew posted this yesterday, thought it was pretty funny:

I think he’s also working on a super extensive stereo VCA module coming soon. We are all very spoiled with these incredible options, seems like 2019 will be a great year for new choices in eurorack.

5 Likes
#103

for your consideration: another “multi-dimensional signal processor with stereo inputs and outputs” announced today