Friday, 21 August 2009
More Hazarai! EHX SMMH Modification
Rechner7's modded EHX Stereo Memory Man with more Hazarai!
Following this thread at sequencer.de where ACA describes how he modded his Akai Headrush, I asked Rechner7 how he'd modified his SMMH and he kindly sent me these pictures, sound clips and details.
smmh-mod by rechner7.
HP A/B ON-OFF
input C is always active and high-pass filtered to avoid a unintentional activation of the loop-mode. the high-pass is just a passive 1-pole high-pass with a cuttoff frequency at about 1-3Hz. a selective remoted looping can be done with A or B.
using the REC switch is equivalent to an enduring press of the tap button. this function is handy for long and pitchable delays in the loop-mode.
the function SELECT activates the additional trigger input A or B.
switching HP A/B to ON enables a high-pass filter. if the high-pass is active, A or B cannot release the loop function. bypassing the high-pass (HP A/B OFF) will activate the loop-mode if the gate length exceeds the threshold.
paragraph: Converting Gate to Switched Trigger (S-Trigger)
paragraph: 2. Basic circuits
You can download a zipped folder with more pictures, the text and audio examples here (6MB).
Thanks to Rechner7 for sharing this! If you want to attempt this simple but Hazarai-enhancing mod, beware: apparently the hardest part is freeing the PCB from the enclosure without breaking it. Neither I nor Rechner7 take any responsibility for your SMMH. Just so that's clear, OK? Happy Modding!