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JHS Muffuletta
Posted: Wed Sep 02, 2015 1:01 am
by TOMKAT_BKLYN
This came out today. Sounds pretty great! Really curious about the mode switching since one rotary switch is changing multiple component values. Since Josh says its all analog I imagine he made a circuit board with six different smd muff circuits on it, tone volume and sustain knobs connected to all of them, and the mode switch bypasses each one. Thats just my idea tho.
[youtube]http://www.youtube.com/watch?v=lK1BLH-KkT0[/youtube]
Re: JHS Muffuletta
Posted: Wed Sep 02, 2015 6:08 am
by MEC
Re: JHS Muffuletta
Posted: Wed Sep 02, 2015 8:23 am
by AlexanderPedals
My thought was that he's using CMOS switching like a 4066 or 4053 etc. to change component values. Really easy to do that all in digital logic but all of the switching is analog using FETs in the CMOS chips. A 4051 is essentially a digitally controlled 1-of-8 switch, the 4052 is four SPST switches, and a 4053 (my personal fave) is three SPDT switches. You need to be careful about how you bias the CMOS ICs if you don't want them to pop when switching but it's possible that JHS have implemented some other type of pop suppression. One MOSFET to ground on the main output triggered by the switch logic or microcontroller would take care of any switching transients and then your CMOS logic can just sit at any old DC level. There's plenty of ways to implement this effectively (read: cheaply) and kudos to JHS for getting there first. How much you wanna bet we see a Tonebender workalike with the same type of switching later on?
Personally I would have gone whole-hog and used digital pots controlled by the panel potentiometers to implement a preset system. An all-analog Muff that can go from Siamese Dream to DSOTM with a single switch tap is mighty appealing.
Re: JHS Muffuletta
Posted: Wed Sep 02, 2015 9:25 am
by Jwar
Girl get out of here with that JHS bs.
Re: JHS Muffuletta
Posted: Wed Sep 02, 2015 9:45 am
by UglyCasanova
jwar wrote:Girl get out of here with that JHS bs.
Re: JHS Muffuletta
Posted: Wed Sep 02, 2015 9:57 am
by resincum
while I found Matthew''s post interesting&informative
UglyCasanova wrote:jwar wrote:Girl get out of here with that JHS bs.
Re: JHS Muffuletta
Posted: Wed Sep 02, 2015 10:04 am
by Ev_O)))
resincum wrote:while I found Alexander's (that's your name, right?) post interesting&informative
UglyCasanova wrote:jwar wrote:Girl get out of here with that JHS bs.
My sentiments exactly, as while disinterested in the product I was curious how 6 muffs were able to be selected flicked through.
Re: JHS Muffuletta
Posted: Wed Sep 02, 2015 10:22 am
by Ugly Nora
It's hard to keep track of everyone we are supposed to hate and to what degree. Do we hate JHS more than Devi? How about Malekko? Where does he rank in this Axis of Evil? Is Prymaxe the George W. Bush of retailers?
Re: JHS Muffuletta
Posted: Wed Sep 02, 2015 10:24 am
by Jakezor
Fuzz Modes:
1. JHS "2015"
The JHS Muff is a JHS original take on the classic circuit. You will find this version more powerful, less compressed with a more
haunting mid range. It is also the best for bass guitar.
hahahaha
Re: JHS Muffuletta
Posted: Wed Sep 02, 2015 10:25 am
by goroth
resincum wrote:while I found Alexander's (that's your name, right?) post interesting&informative
UglyCasanova wrote:jwar wrote:Girl get out of here with that JHS bs.
Matthew.
Re: JHS Muffuletta
Posted: Wed Sep 02, 2015 11:51 am
by BLOOD EAGLE
i definitely want one, but i have issues.... and it would definitely be used...
but i'd pay a little extra if i can get it with the ugly ass graphics ground off.........
Re: JHS Muffuletta
Posted: Wed Sep 02, 2015 11:57 am
by spacelordmother
Jakezor wrote:Fuzz Modes:
1. JHS "2015"
The JHS Muff is a JHS original take on the classic circuit. You will find this version more powerful, less compressed with a more
haunting mid range. It is also the best for bass guitar.
hahahaha
Re: JHS Muffuletta
Posted: Wed Sep 02, 2015 12:35 pm
by Inconuucl
I'd be more interested if it had a mids control.
Re: JHS Muffuletta
Posted: Wed Sep 02, 2015 12:39 pm
by Chankgeez
I like pedals named after sandwiches.
Re: JHS Muffuletta
Posted: Wed Sep 02, 2015 12:46 pm
by TOMKAT_BKLYN
AlexanderPedals wrote:My thought was that he's using CMOS switching like a 4066 or 4053 etc. to change component values. Really easy to do that all in digital logic but all of the switching is analog using FETs in the CMOS chips. A 4051 is essentially a digitally controlled 1-of-8 switch, the 4052 is four SPST switches, and a 4053 (my personal fave) is three SPDT switches. You need to be careful about how you bias the CMOS ICs if you don't want them to pop when switching but it's possible that JHS have implemented some other type of pop suppression. One MOSFET to ground on the main output triggered by the switch logic or microcontroller would take care of any switching transients and then your CMOS logic can just sit at any old DC level. There's plenty of ways to implement this effectively (read: cheaply) and kudos to JHS for getting there first. How much you wanna bet we see a Tonebender workalike with the same type of switching later on?
Personally I would have gone whole-hog and used digital pots controlled by the panel potentiometers to implement a preset system. An all-analog Muff that can go from Siamese Dream to DSOTM with a single switch tap is mighty appealing.
Wow thanks for all that info and you're probly spot on there. This is why I posted this topic, to talk about the switching.
Digital pots would have been sick. Different muff version presets controllable with midi, so cool. I can't imagine a JHS tonebender. eek.
