Projecttitel: MOTM 440Status:Startdate: 10.10.2014Duedate: 01.12.2014Manufacture link: http://www.synthtech.com/motm440.html |
copy from old synthtech page:
You have probably heard of the SSM2040 filter chip, used in the Prophet 5 Rev. 2 synth, the Voyetra 8, and others. Although short-lived, the SSM2040 filter had a unique sound different from a Moog, ARP or other 4-pole lowpass. Why? The design used a clever discrete OTA gain cell.
The MOTM-440 offers an updated SSM2040 architecture using matched NPN/PNP pairs and features a switch that adds a second audio feedback path to boost bass response at higher Q levels. This makes the filter "growl and rumble" even more! In addition, voltage-controlled Q allows for more sweeping effects. Three audio inputs and three CV inputs make the MOTM-440 the killer lowpass filter in your system. The internal gain structure is such that over-driving the filter is now possible (unlike the Prophet 5) to get even more nasty sounds. Did we mention it self-oscillates at high Q?
So order a MOTM-440 filter for a fraction of the price of a P5 Rev. 2, but without the worry of obsolete parts!
"The MOTM-440 is the best-sounding analog filter I have ever heard." - Robert Rich
If you have purchased an MOTM-440 PCB that has a "P80316" silk screened in the upper left hand corner by the Synth Tech label, please run a wire descriped in picture (the pcb trace is defective) http://www.muffwiggler.com/forum/viewtopic.php?p=1175840&sid=f286a3c98a3a58e25cbd2bf90200d1cd
further a other issue was found on one pcb: http://www.sequencer.de/synthesizer/viewtopic.php?t=87264
if your Input 1 and your Frequenzmodulation dont work, fix this by run wires:
Picture of missing traces here too: (fixed by above solution)
|