Showing posts with label MK1. Show all posts
Showing posts with label MK1. Show all posts

Tuesday, May 14, 2019

GSE 4023-VCF Demo #2 Lovely Saturation


Darkwave, deep house, tribal and Carpenter-esque sounds ahead.
Of the filters I'm offering, 4023-VCF has the most lovely saturation to me.
In most cases, when the input slider is above 60% the filter input will start to become overdriven.
Resulting in a warm and fuzzy distortion.
Audio recorded direct to Tascam DR-05.
Some use of the Timefactor Delay and Big Sky Reverb.

0:00 Opening
0:14 Talking
1:01 Audio demos w/ talking intros

Kick Drum - Future Retro Transient+
Oscillators - Pittsburgh Synth Box + Rozendall CEM3340
Envelope Contours - 2xADSR dual envelope
Ring Mod - Mutable Warps
LFO - Batumi
MIDI Sequence - Beatstep Pro

Monday, April 8, 2019

Announcing 4023 VCF - an ARP Odyssey MK-I Filter Eurorack Adaptation

Here it is - the mystery module presented yesterday at the Dallas Synth Party.

The 4023 VCF is a no-compromises Eurorack filter adaptation of the MKI ARP Odyssey synthesizers that boasted the colorful 4023 module. Slim. 8HP. Elegant beauty. Don’t be fooled by this early 2-pole 70s design, it retains bass power at higher resonance very well, and can self-oscillate with a robust sine wave when you top out the Resonance.

This 4023 VCF adaptation as close to the original as possible including Rochester re-issue CA3080 OTAs struck from the Intersil masks, matched discrete TO-92 transistors, 2N5459 FETs, a temperature compensation resistor for frequency stability, and six 20mm Alpha slide potentiometers inspired by look of the original. Per usual, when the input sliders are above 75% it will overdrive the filter input for some lovely saturation. 4023 VCF has the classic ARP vibe you’re seeking in spades.