Technical M anual ( Rev 1 )
Introduction
Thank y ou f or y our p urchase o f t he E lectronic A udio E xperiments L ongsword !
This m anual i s a n i n-depth g uide f or p roperly u sing a nd e njoying y our p edal.
But f irst, a l ittle b it o n t he o rigins o f t he L ongsword: I c onceived t his c ircuit t o b e a
general-purpose d istortion w ith c haracter – i n o ther w ords, y ou c an c oax a w ide v ariety o f t ones
out o f i t w hile n ever c ompromising i ts s onic s ignature. T here a re m any d istortion p edals I l ove,
but t his o ne w as d esigned t o m eet s pecific n eeds I h ad w hich, a s i t t urns o ut, a re n ot p articularly
unique ( and p robably w hy y ou b ought t his p edal). W hen p laying d istorted g uitar i n a b and
setting, m y p referred s tyle i s t o s et a s ingle c hannel a mplifier o n t he v erge o f b reakup a nd p ush
it a b it h arder w ith a m ix o f p ure c lean g ain a nd s ome s aturation i nherent t o w hatever p edal(s)
I'm u sing.
At i ts c ore, t he L ongsword i s a n o p-amp d rive w ith d iode s hunt c lipping. A n i ntegrated c ircuit
called a n o perational a mplifier ( aka o p-amp) i ncreases t he s ignal a mplitude ( loudness), a nd a
pair o f d iodes l imits t he p eaks. C utting t he p eaks o ff o f a s ignal g enerates a b evy o f e xtra
harmonics, p roducing t he d istorted t ones w e a ll k now a nd l ove. T his c ircuit b lock i s f ound i n
hundreds o f p edals ( r anging f rom t he R at t o t he O CD t o e ven t he v enerable K lon C entaur ) a nd
is, i n i tself, n ot s pecial.
The L ongsword i s m ade s pecial b ecause o f t he w ay t he c lipping a mplifier i s w rapped u p i n a
series o f o ther a mplifiers a nd f ilters. M any o p-amp-centric o verdrive p edals s ound g ood w ith
one p articular k ind o f g uitar o r a mp, o r t hey h ave o nly o ne s ound t hat t hey d o w ell. O ftentimes,
ones t hat s ound g ood o n t heir o wn c an d rop o ut o f t he m ix i n a b and s etting. B y t aking
advantage o f t he h eadroom a vailable i n t he L ongsword, w ide r ange o f g ain, a nd p owerful
equalization, t he p layer m ay e asily d efeat t hese s hortcomings.
-John S nyder, E AE
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