All You Need to Know about Multichannel Guitar December 19 2014

All you need to know about multichannel guitar: http://tinyurl.com/pj6bnms

We published a white paper, explaining the concept of hexaphonic processing and polyphonic distortion. The paper is focused on the technology behind Spicetone's 6APPEAL™ hexaphonic guitar pedal. The 13 page illustrated paper is free to download as a pdf file:


Hexaphony is one of the very few underexploited innovations that guitar players have yet to discover. The cutting edge of the technology is to combine fully analog sound with post processing capabilites in a digital audio workstation like Ableton Live, Cubase, or Logic Pro. Along with the white paper, a series of short demo videos are published in Youtube.

First of the videos demonstrates analog polyfuzz, also called hexaphonic distortion, with a Roland GK-3 divided pickup mounted on the bridge of a Fernandes guitar. The 6Appeal pedal is used for a panning effect, too:


Second video shows a how to correct the sound of a Roland GK-3 pickup in analog domain. Mounted by guitar's bridge, it tends to lack lower frequencies, but can be beefed up with analog root boost circuits in 6Appel pedal:


Third video demonstrates a Godin "Synth Access" equipped guitar with analog polyfuzz, stereo panning applied in 6Appeal. A selective amount of drive and dry signal mix, and some modulation is used:


The last video of the series is focused on making and saving a custom preset for the microprocessor controlled 6Appeal pedal:


The best known feature of multichannel guitar processing is hexaphonic distortion effect. Musicians describe it as “orchestral”, compared to classic distortion. For 6Appeal pedal, hexaphonic distortion is a native feature.

Besides full harmonic range, 6Appeal, as an example of a multichannel guitar processor, lets you to pan individual strings in stereo, so you can fill the stage and amaze your audience with a full spatial effect. Building a complex surround guitar system is no obstacle. Set to breakout box mode, 6Appeal serves as a middleman for your 13pin guitar and soundcard - both clean and distorted. All strings can be routed separately to your mixer or computer.

Everything in 6Appeal can be controlled by external MIDI, including the tempo of modulation effect, which it also incorporates. It is also an outgoing MIDI controller - you can send MIDI messages from 10 pots and 3 footswitches.

The truth is there are no other analog multichannel guitar processors at the moment, only some breakout boxes and vintage gear. Spicetone's founders are hoping there will be other gear soon. The company encourages other developers to further explore the understomped grounds analog hex guitar pedals. Please see the white paper on Spicetone's input to the field.

6Appeal is currently available is Spicetone’s webshop. The international retail price is EUR450 (USD595). Here's a 10% discount code valid until 31 Dec 2014: HEX14.

More demos, a full list of specs and a user manual of 6Appeal are available at http://www.spicetone.com

Spicetone is a music technology startup from Estonia, driven by experienced engineers with IC design background, who have previously worked for Texas Instruments and National Semiconductor. Spicetone’s goal is to help musicians in exploring new frontiers of analog guitar sound. These horizons are only accessible through advanced engineering and strong belief in the everlasting glory of guitar rock.

We have Edison working with us! December 04 2014

Intel Edison, Rein & Taivo @SpicetoneFX

Multichannel Guitar: Standard Godin Synth Access and GK-3 Divided Pickup November 28 2014

We invited our friend Mart Pauklin over to shoot some quick demos. Thanks Mart! Only standard gear used, no boutique hand made pickups or strange pickup positioning.

First of all a jolly Fernandes guitar with a Roland GK-3 pickup system attached. No permanent modification need, not a scrath on the guitar. And the positioning of the pickup is standard, close to the bridge. The sound a is rather thin in that position, but this is not the end of the world! Just plug it to our 6Appeal analog distortion/overdrive, and switch on our Root Boost circuit that adds tons of fundamental harmonics.

So, a divided pickup (hex or hexaphonic pickup) is not only for MIDI syntheziser and so on, but it also opens up the gates to multichannel guitar processing! In this video, the strings are panned in stereo; you don't have to pan it so hard, but this time I did just to make the difference.

 And now for Godin electric guitar with standard built in RMC pickup (piezo bridge).

What you need for this sound: a "synth access" Godin guitar with RMC bridge pickups or any guitar with non-destructively mounted Roland GK-3 divided pickup and 13 pin preamp (hexaphonic pickup), 6Appeal pedal by Spicetone, a soundcard with stereo input and any DAW that can run a convolution reverb plugin. We used these fantastic very real sounding impulses by Gregor Hennig (Studio Nord Bremen; http://www.grgr.de); Vielen Dank Gregor! I did cut off the very low and high and applied a limited plugin; also, Youtube compresses the sound quite a bit; but all in all no gimmicks or secret processing tricks. Multichannel guitar is here to stay!



Fantastic Metaphors:) November 26 2014

It appears we've made the Mercedes of Hex Fuzz Boxes. Really impressive way to make a compliment here on Carvin Forum:


We are flattered! Thank you!

PS Hopefully it's OK that I copy the original text:

"There's a reason Roland's GR-D hex distortion is being blown out for $99. The GR-S is a steal at that price to me, but many think of the D as the far weaker twin of the two.

But, you say you want SERIOUS HEX DISTORTION done the RIGHT WAY? Are you addicted to the BEST? Do you get to screen your credit card bills before your wife sees them???
Look no further:


Impressively pricey at $595, but built by crazed artists chasing rainbow ponies in the clouds.
From Estonia, no less.

Features a fully analog signal path of fuzz tones with hex string separations and processing. For the right person, this is IT, MAN!

It brings a tear to my eye for the sheer artistry of the effort. It's like reconnecting with your high school buddies to work up a version of Free Bird that takes you weeks to get right only to play it once at a back yard barbecue with your wives admiring and your kids holding their ears.

Boutique hexaphonic pickup in action November 18 2014

Mr Mart Pauklin jamming with hexaphonic analog distortion effect pedal 6Appeal (by us, Spicetone), using an ESP Viper equipped with a handwound hexaphonic pickup by Luthier Halvo Liivamägi.

It's a direct recording through a MOTU soundcard. Panning and cabinet models are applied in DAW (Ableton Live).

Guitar Noize October 21 2014

And we're in the excellent Guitar Noize online magazin:


Me gusta aunque no sepa usarlo October 16 2014

I'm not too good with Spanish language, but it seems these guys like us. Muchas gracias!


- Bueno mas que overdrive, es un fuzz, polifónico, con octavas muy parecido a lo que obtienes con el microsynth de ehx, dije similar, en realidad el demo me recordó al efecto en el sinte de Jump, la marca es de Estonia, esta muy bien logrado, es para música experimental, a algunos les podría interesar.

- Se ve chingòn, aunque algo aparatoso pero obligadamente estético, nada mal.

- El diseño está mamalon, me gusta aunque no sepa usarlo...


- esta shido para experimentar y explorar sonidos mientras se aprende a usarlo aunque eso puede llevar buen rato.

SonicState October 08 2014

And we are featured in supercool SonicState.comhttp://tinyurl.com/pyj9v7u

Premier Guitar October 07 2014

We are featured in ever great Premier Guitarhttp://tinyurl.com/q7qhcld

Hit It - Fairlights (6Appeal hexaphonic distortion MIDI synced demo) September 26 2014

"Hit It" by Fairlights (Enda Bates)

Spicetone's 6Appeal hexaphonic distortion, routed to DAW and synced to a drum track with MIDI from computer. 

Gear List
Godin LGX electric guitar with RMC piezo-style hexaphonic pickup
Spicetone 6Appeal (breakout box mode)
Motu Ultralite multichannel soundcard
UAD Stereo Reverb + Delay plugins
Time Freezer VST plugin

The track uses three presets on the 6Appeal. The first one is a fairly full-on distortion setting with the Gain and Tone turned up full. The strings are panned across the stereo field with the low strings quite central, and the two middle strings panned about halfway left and right. The melody is played solely on the top two strings which are hard-panned left and right to give the impression of two distinct melodic lines, with a rhythmic backing from the other, more centrally panned strings.

The rhythmic pulsing in the opening is created by tapping the back of the guitar neck with the right hand while holding a chord with the left. In the first half of the track, the melody is played on the top two strings using hammer-ons and pull-offs (as the picking hand is occupied tapping the neck).

In the second half of the tune a new, modified version of the initial preset is used. This has a tremolo effect on the lower three strings which mimics the tapped pulsing effect from earlier but using modulation, which now frees up the right hand for strumming and picking. This was done using LFO2 which is tempo-synced to the drum machine track using MIDI clock from the DAW.

Finally, the end section just uses a clean preset with the same stereo spread. Apart from the 6Appeal, the only other effects are simple things like some stereo delay and reverb. The one exception is the Time Freezer plugin (which is very similar to the EHX Freezer pedal), thats used to create a sustained drone from the top three strings towards the end of the track. No amps or amp modelling was used.


The same with a promo video (and with Youtube compression, sorry):