Plinius SA reference User manual

S A - R E F E R E N C E
P O W E R A M P L I F I E R
I N S T R U C T I O N M A N U A L
www.pliniusaudio.nzld.com

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3
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5
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K\Ybh\YUad`]Z]YfdckYfgidZfcaghUfh ]hk]``UihcaUh]WU``m[c]bhcAihYUbX
X]gWcbbYWhh\YgdYU_Yfcihdihg"=bh\]gacXYh\YAihY@98]gCB"DfYggh\YAihY
gk]hW\hchU_Yh\Yib]hcihcZAihYUbXVY[]b`]ghYb]b["
CLASS A SWITCH
H\]ggk]hW\cbh\Yf][\hcZh\YdUbY`U`hYfgh\YcdYfUh]b[V]UgcZh\YUad`]Z]Yf"DfYgg
cbWYhcUWh]jUhY7`Ugg5 UbXU[U]bZcf7`Ugg56"=b7`Ugg5h\Y@98]gCB"9]h\Yf
acXYaUmVYigYXZcf`]ghYb]b[ k]h\7`Ugg5dfYZYffYX"
7@5GG56.H\]gdcg]h]cbfYXiWYgh\YV]Ugcbh\YcihdihghU[YhccdYfUhYh\YUad`]Z]Yf
]b7`Ugg56"H\]g]gUV]UgWcbZ][ifUh]cbigYXVmh\YaU^cf]hmcZ\][\Z]XY`]hmUad`]Z]Yfg"
=b7`Ugg56mcifD@=B=IGG5!FYZYfYbWYdfcXiWYgjYfm\][\eiU`]hmgcibX gi]hUV`Y
ZcfU``cWWUg]cbgk\YfYWf]h]WU``]ghYb]b[]gbchUdf]cf]hm"5XiU`VYbYZ]hYl]ghg]bh\Uh

7
h\]gZUW]`]hmdfcj]XYgh\YigYfk]h\UaiW\Wcc`YfcdYfUh]b[hYadYfUhifY UbXUaiW\
fYXiWYXXYaUbXcbh\YaU]bgY`YWhf]W]hmgidd`m dUfh]Wi`Uf`mUh]X`Yk\]`Yh\YUad`]Z]Yf
]gbchfYdfcXiW]b[aig]W"H\]gZYUhifYU``ckgmcihc`YUjYh\YD@=B=IGG5!FYZYfYbWY
gk]hW\YXCBUhU``h]aYg fYbXYf]b[h\YUad`]Z]YffYUXmZcfigYUbXfYei]f]b[cb`m
UZYka]bihYgcZkUfa!id]b7`Ugg5VYZcfYh\YjYfmVYghcZh\YUad`]Z]YfÈggcb]W
eiU`]h]YgaUmVYYldYf]YbWYX"
7@5GG5.H\]gdcg]h]cbdfcj]XYg7`Ugg5V]Ughch\YcihdihghU[Yh\YfYZcfYYbgif]b[
h\Ycdh]aiadYfZcfaUbWYcZh\YUad`]Z]YfXif]b[U```]ghYb]b[YjYbhg"
7`Ugg5Uad`]Z]Yfgfib\chhYfh\Ub7`Ugg56Uad`]Z]Yfg \YbWYcifgdYW]U``mXYg][bYX
UbXX]gh]bWh]jY\YUhg]b_g"CdYfUh]b[h\YUad`]Z]Yf]b7`Ugg5bYWYgg]hUhYghkc
dfYWUih]cbgh\Uhg\ci`XVYcVgYfjYX"
%" Cbgk]hW\]b[hc7`Ugg5 h\YhYadYfUhifYcZh\YUad`]Z]Yfk]``ei]W_`m]bWfYUgY
UbXh\YUad`]Z]Yfk]``VYWcaYei]hY\ch"9bgifYh\Uhmci\UjY`YZhUXYeiUhY
gdUWYUfcibXh\YUad`]Z]YfZcfjYbh]`Uh]cb"
&" H\YdckYffYei]fYXZfcah\YaU]bggidd`m]b7`Ugg5]gUddfcl]aUhY`m% $$$
kUhhg g]a]`UfhcUgaU``Y`YWhf]W\YUhYf"H\YUad`]Z]Yfg\ci`XbchVYWcbbYWhYX
hcUkU``cih`Yhh\Uh]gg\UfYXk]h\ch\Yf\YUjmWiffYbhUdd`]UbWYggiW\Ug
\YUhYfgcfY`YWhf]Wachcfg"=Z]bXciVh W\YW_k]h\mcifD`]b]igXYU`YfZcfUXj]WY"
WHY CLASS A IS BETTER
7`Ugg5\UgU`kUmgVYYbfY[UfXYXUgh\YdYfZYWhcdYfUh]b[acXYZcfUiX]cUad`]Z]Yfg"
AUbm`YUX]b[Uad`]Z]YfXYg][bYfgUbXaUbiZUWhifYfgkcf`Xk]XYfYWc[b]gYh\UhUkY``
XYg][bYX7`Ugg5W]fWi]h\Ug]b\YfYbh`m`ckYfX]ghcfh]cbh\UbUbmch\YfXYg][b"
7`Ugg5W]fWi]hhcdc`c[m]gcbY]bk\]W\h\YhchU`WiffYbhh\YUad`]ÑYf]gWUdUV`YcZ
XY`]jYf]b[ ]g_YdhÒck]b[]bh\YW]fWi]hfY[UfX`YggcZXYaUbX"=bUWcbjYbh]cbU`cf7`Ugg
56Uad`]ÑYfW]fWi]hh\]gWiffYbhÒckjUf]Ygk\YbXYaUbXjUf]Yg":ifh\YfacfY UgWiffYbh
jUf]Yg h\Yjc`hU[Ycbh\YdckYfgidd`mfU]`gUggYYbVmh\YcihdihghU[YjUf]Yghcc"
=bU7`Ugg5W]fWi]h WiffYbhXfUkg\ci`XVYWcbghUbhh\YfYZcfYh\YfY]gUbUVgYbWYcZ
h\YdckYfgidd`macXi`Uh]cbWcaacb]b7`Ugg56XYg][bUad`]ÑYfg"D]bdc]bh]aU[Yg 
hcbU`W`Uf]ÑWUh]cb ]bhYfhfUbg]Ybhg]`YbWY acfYfYUX]`mXYÑbYXXmbUa]Wg\UX]b[g ]bbYf
XYhU]`UbXUih\cf]hmUfYU``]b\YfYbhUXjUbhU[YgcZ[ccX7`Ugg5XYg][b" 

8
5AD@=:=9F:95HIF9G
ÃF95FD5B9@
H\]gdUbY`]bWcfdcfUhYgU``h\YhYfa]bU`gZcfWcbbYWh]b[h\Y]bdihg][bU`gZfcamcif
dfYUad`]Z]Yf UbXcihdihhch\Y`ciXgdYU_Yfg UbXaU]bggidd`m"5fYUgcbUV`Y
ibXYfghUbX]b[cZh\]gUad`]Z]YfÈgcdYfUh]cbUbXU`c[]WU`UddfcUW\g\ci`XYbgifYh\Uh
mciUfYUV`YhcaU_YU``WcbbYWh]cbgk]h\YUgY"
56CJ9.G5!FYZYfYbWYfYUfdUbY``Umcih
INPUT TERMINALS
=bdihhYfa]bU`gZcfmcifD@=B=IGG5!FYZYfYbWYDckYf5ad`]Z]YfUfYYUg]`mUWWYgg]V`Y
UbXZ]hhYXbYUfh\YhcdWYbhfYUfYUcZh\YfYUfdUbY`"
F75=BDIHG.H\YgYghUbXUfXF75hYfa]bU`gUfYZcfigYk]h\ibVU`UbWYXg][bU`gZfca
acghg][bU`gcifWYggiW\UgUiX]cdfYUad`]Z]Yfg"

9
L@F65@5B798=BDIHG.L@FWcbbYWhcfgZ]hhYXhch\]gUad`]Z]YfUfYZcfigYk]h\
VU`UbWYX`]bYg][bU`gZfcaUiX]cdfYUad`]Z]Yfg"6U`UbWYXg][bU`gUfYWUff]YXj]UU
h\fYYkUmWUV`Yh\UhWcbbYWhgU``h\fYYd]bgUhYUW\YbXcZh\Y]bhYfWcbbYWhWUV`Y"
H\YL@F]bdihd]bWcbZ][ifUh]cbigYX]bU``D`]b]igdfcXiWh]gUgZc``ckg.

D=B%hc;B8
D=B&hcG][bU`
D=B'hc!G][bU`
BCH9.6YWUigYcZh\YkUmVU`UbWYXL@F]bdihgUfYWcbZ][ifYX]h]gbchdcgg]V`Yhc
WcbbYWhVch\L@FUbXF75Uhh\YgUaYh]aY"
AMPLIFIER CONFIGURATION SELECTOR (ACS)
H\Y5ad`]Z]Yf7cbZ][ifUh]cbGY`YWhcf57G]gUib]eiYgk]hW\]b[aYh\cXh\UhYld`c]hg
U``cZh\YcdYfUh]cbU`ZYUhifYgcZmcifD@=B=IGG5!FYZYfYbWYDckYf5ad`]Z]Yf"6mig]b[
h\]ggk]hW\]h]gdcgg]V`YhccdYfUhYmcifUad`]Z]Yfk]h\Y]h\YfVU`UbWYXcfibVU`UbWYX
g][bU`gUbXUW\]YjYUghYfYccfacbccihdih"
GhYfYccfAcbcigYcZh\]gUad`]ÑYfk]``XYdYbXcbh\YhmdYcZUbW]``UfmYei]daYbh
Yad`cmYXk]h\mcifgmghYa"=Zmcik]g\hcigYh\]gUad`]ÑYfUgUg]b[`YW\UbbY`acbc
DckYf5ad`]ÑYf]bUghYfYc\][\ÑXY`]hmgmghYa h\YbUbch\YfG5!FYZYfYbWYk]``VY
fYei]fYXZcfh\Ych\YfW\UbbY`"H\]gk]``dfcj]XYUbYlhfYaY`m\][\dYfZcfaUbWYcdh]cb"
H\Y57Ggk]hW\cdh]cbgUfY.
F75GH9F9C.H\]gcdh]cbdfcj]XYgUghYfYccihdihj]UVch\`YZhUbXf][\hcihdih
W\UbbY`gZfcaUghYfYcg][bU`WcbbYWhYXhcVch\`YZhUbXf][\h]bdihF75]bdihg"
F756F=8;98ACBC.H\]gcdh]cbWcbZ][ifYgmcifUad`]Z]YfhcXf]jYcbY`ciXgdYU_Yf
ZfcacbYibVU`UbWYXg][bU`ZYXhch\YF=;<HF75]bdih"

10
L@FGH9F9C.H\]gcdh]cbdfcj]XYgUghYfYccihdihg][bU`ZfcaUVU`UbWYXghYfYc
]bdihg][bU`WcbbYWhYXhcVch\h\Y`YZhUbXf][\hL@F]bdihg"
L@F65@5B798ACBC.=bh\]gacXYVch\W\UbbY`gcZmcifD@=B=IGG5!FYZYfYbWY
WcaV]bYhccdYfUhYUgUhfiYVU`UbWYXacbcUad`]Z]Yf Zfca]bdihhccihdih"H\]g
WcbZ][ifUh]cbdfcj]XYgh\Y\][\YgheiU`]hmacbcdYfZcfaUbWYZfcaUVU`UbWYX`]bY
]bdihWcbbYWhYXhch\YF=;<H65@5B798L@F=BDIH"
BALANCED/UNBALANCED SIGNALS
6U`UbWYXcfibVU`UbWYX]bdihcdh]cbgk]``XYdYbXcbh\YhmdYcZg][bU`UjU]`UV`Y
ZfcamcifdfYUad`]Z]Yfcfch\YfYei]daYbh"H\YD@=B=IGG5!FYZYfYbWYdfcj]XYgVch\
cdh]cbghcU``ckmcihcW\ccgYh\Yacghgi]hUV`YdfYUad`]Z]YfZcfmcifdifdcgYg"
D@=B=IGDfYUad`]Z]YfgcZZYfVch\VU`UbWYXUbXibVU`UbWYXcihdihcdh]cbg"

65@5B798@=B9]gbcfaU``migYXhchfUbga]hg][bU`g]bUdfcZYgg]cbU`Ybj]fcbaYbh"
6YWUigYVU`UbWYX`]bYYZZYWh]jY`mfYXiWYgcfY`]a]bUhYgbc]gYd]W_!idVmh\YgmghYa
WUV`]b[ ]h\UgVYWcaY]bWfYUg]b[`macfY]adcfhUbh]b\][\!eiU`]hmXcaYgh]W\][\
Z]XY`]hmgmghYag"
IB65@5B798`YUXggiW\Ugg]b[`YYbXYX F75cfWcUl]U`UfYWcaacbUbXUfY
igYX]bh\YaU^cf]hmcZUiX]cg][bU`gmghYag"H\YhYfa]bU`d`i[UbXgcW_YhUfYacgh
Wcaacb`mWU``YXF75UbXWUbVYZcibXcbmcifD@=B=IGG5!FYZYfYbWYZcfigYUgh\Y
ghUbXUfX]bdihhYfa]bU`gZcfVch\`YZhUbXf][\h]bdihg"
OUTPUT TERMINALS
CihdihWcbbYWh]cbgZcfh\Y`ciXgdYU_YfgUfYdfcj]XYXcbh\Y`YZhUbXf][\h\UbXg]XY
cZh\YfYUfdUbY`"HkcdUfU``Y`dU]fgcZV]bX]b[dcghgZcfYUW\W\UbbY`UfYÑhhYXÃh\YgY
dfcj]XYYUgYcZigYk]h\V]!k]f]b[UbXai`h]d`YWUV`YgfYei]f]b[U`Uf[YWcbhUWhUfYU"
MAINS SWITCH
H\]g\YUjm!XihmfcW_Yfgk]hW\cbh\YfYUfdUbY`hifbgh\YAU]bg#@]bYDckYfhch\Y
Uad`]Z]YfCBcfC::"H\YUad`]Z]YfXfUkgUacXYfUhY`m\][\WiffYbhk\Ybgk]hW\YX
cb"8Ygd]hYh\YÅGcZhGhUfh7]fWi]hÆk]h\]bh\YUad`]Z]YffYXiW]b[WiffYbhXYaUbXcb
h\YaU]bgUgh\YUad`]Z]Yf]ggk]hW\YXcb ]h]gbch[ccXdfUWh]WYhcfUd]X`mhifbh\Y
AU]bggk]hW\cbUbXcZZfYdYUhYX`m"

11
REMOTE TRIGGER TERMINALS
=bcfXYfhc]bhY[fUhYacfYYZZYWh]jY`m]bhcU\caYh\YUhfYgmghYa h\YD@=B=IGG5!
FYZYfYbWY\UgfYachYhf][[YfhYfa]bU`gZ]hhYXhch\YfYUfdUbY`"6mWcbbYWh]b[U
dfcWYggcfk]h\UfYachYhf][[Yfg][bU`hch\YgYhYfa]bU`g h\YG5!FYZYfYbWYWUbVY
dih]bUbXcihcZ7`Ugg56#aihYVmh\YdfcWYggcfhck\]W\]h]gWcbbYWhYX"K\Yb
]b7`Ugg56#aihYh\YUad`]Z]YfXfUkg`YggWiffYbhUbXk]``cdYfUhYUha]b]aia
hYadYfUhifY"H\YcihdihfY`UmgUfYU`gccdYb X]gWcbbYWh]b[h\Y`ciXgdYU_Yfg"
H\]gaUmVYcZUXjUbhU[Y]bUai`h]!Uad`]Z]YfUbX#cffYachY]bghU``Uh]cbg"Dc`Uf]hmcZ
h\YWcbbYWh]cbghch\YfYachYhf][[Yf]gbch]adcfhUbh"
GROUND LIFT SWITCH
H\]ggk]hW\]g`cWUhYXUX^UWYbhhch\YAU]bg=bdihGcW_Yh UbXU``ckgh\Yg][bU`
[fcibXhcVYX]gWcbbYWhYXZfcah\YW\Ugg]g"=bgcaY]bghU``Uh]cbgU\ia`ccd
aUmYl]ghXiYhcXid`]WUhY[fcibXdUh\gZfcaX]ZZYfYbhYei]daYbh"IgYh\]ggk]hW\
hcfYacjYh\YWcbbYWh]cbZfca$Jhc[fcibXh\igU``ck]b[gcaYZ`Yl]V]`]hm]bmcif
dUfh]Wi`UfgYh!id"BchYh\Uh]bVch\L@FacXYgh\Y[fcibX`]Zh]b[gk]hW\g\ci`X
U`kUmgVYgYhhcÇW\Ugg]gÈ"
MAINS POWER CORD IEC CONNECTOR
H\]gWcbbYWhcf]gk\YfYh\YaU]bggidd`mWUV`YZfcamcifkU``WcbbYWhghch\Y
Uad`]Z]Yf"Mcik]``bch]WYh\UhUZigY\c`XYf]gacibhYXk]h\]bh\]gWcbbYWh]cb UbX]h
\c`XgUaU]bgZigYhcdfcj]XYgif[YUbXcjYf`cUXdfchYWh]cbZcfmcifUad`]Z]Yf"
=BGH5@@5H=CB5B8
CD9F5H=CB
WARNING: RISK OF ELECTRIC SHOCK
H\]gUad`]Z]YfcdYfUhYgUh\UnUfXcigjc`hU[Y`YjY`g"KYfYWcaaYbXh\UhUbmkcf_
fYei]f]b[fYacjU`cZh\Y`]XVYfYZYffYXhcUgi]hUV`meiU`]Z]YXUbXYldYf]YbWYXgYfj]WY
hYW\b]W]Ub"8CBCHd`UWYh\]gUad`]Z]Yf]bUbmdcg]h]cbk\YfY`]ei]XgcfUbmZcfY][b
aUhYf]U`aUmUWW]XYbhU``mYbhYf]h"
CAUTION!
D@95G9F9585B8IB89FGH5B8H<9DF975IH=CBG=BH<9=BGHFI7H=CBA5BI5@
:CFH<9DCG=H=CB5B8CD9F5H=CBC:MCIFD@=B=IG5AD@=:=9F"

12
CONNECTIONS
7cbbYWh]cbghcmcifD@=B=IGG5!FYZYfYbWYg\ci`XVYaUXY]bh\YgUaYcfXYfUg
h\YmUfY`]ghYX]bh\]ggYWh]cb"8CBCHUhhYadhhcWcbbYWhmcifD@=B=IGG5!FYZYfYbWY
ibh]`mci\UjYfYUXUbXZi``mibXYfghccXh\YgY]bghfiWh]cbg"
5`h\ci[\h\YgY]bghfiWh]cbgfYZYfhch\YWcbbYWh]cbcZUdfYUad`]ÑYf h\YG5!FYZYfYbWY
WUbU`gcVYgUZY`m]bghU``YX]bhcai`h]aYX]UgmghYagVmZc``ck]b[h\YgUaY]bghU``Uh]cb
[i]XY`]bYg"G\ci`XmcifYei]fYUbmZifh\YfUgg]ghUbWY d`YUgYWcbhUWhmcifD`]b]igXYU`Yf"
56CJ9.FYUfdUbY``Umcihg\ck]b[]bdihUbXcihdihhYfa]bU`g
PREAMPLIFER INPUTS
7cbbYWhmcifDfYUad`]Z]Yfhch\Y]bdihcZh\YD@=B=IGG5!FYZYfYbWYig]b[gi]hUV`Y
g]b[`Y!YbXYXF75cf6U`UbWYXL@F]bhYfWcbbYWhWUV`Ygcb`m"
=Zig]b[g]b[`Y!YbXYXF75]bdihg WcbbYWhmcifDfYUad`]Z]Yfhch\YF75]bdihgcbh\Y
VUW_cZh\YD@=B=IGG5!FYZYfYbWY"AU_YgifYmciWcbbYWhh\YfYXWcXYXWUV`Yhc
h\YfYXF=;<HF75]bdih UbXh\YV`UW_cfk\]hYWUV`Yhch\YV`UW_@9:HF75]bdih"
5`gcaU_YgifYh\YF75WcbbYWhcfgUfYUgbi[Z]hUbXUfY]bgYfhYXU``h\YkUm]b"

13
:cfL@F]bdihWcbbYWh]cb aU_YgifYmciWcbbYWhh\YF=;<HL@F]bdihUbX@9:HL@F
]bdihghch\Yf][\hUbX`YZhcihdihgZfcamcifDfYUad`]Z]YffYgdYWh]jY`m"
IgYh\Y5ad`]ÑYf7cbÑ[ifUh]cbGY`YWhcfgk]hW\hcgY`YWhF75GH9F9C]ZmciUfYig]b[
ibVU`UbWYXF75]bdihgcfhcgY`YWhL@FGH9F9C]ZmciUfYig]b[VU`UbWYXL@F]bdihg"
 DfYUad`]Z]YfCihdih =bhYfWcbbYWhg G5!FYZYfYbWY=bdih
BCH9.8CBCHWcbbYWhL@FUbXF75Uhh\YgUaYh]aY igYcb`mcbYcfh\Ych\Yf"
8YhU]`YX]bghfiWh]cbgZcfig]b[h\YG5!FYZYfYbWY]bF756F=8;98ACBC UbXL@F
65@5B798ACBCacXYgUfY`UhYf]bh\]ggYWh]cb"
LOUDSPEAKER OUTPUTS
H\YWcbbYWh]cbcZmcif`ciXgdYU_Yfghch\YcihdihdcghgcZh\YD@=B=IGG5!FYZYfYbWY
aighVYaUXYVmUbÇ]bghfiWhYXdYfgcbÈcfVmfYUXmaUXY`ciXgdYU_YfWUV`Ygcb`m"
7cbbYWhmcif`YZh`ciXgdYU_Yf]Y"h\YcbYcbmcif`YZhk\YbgYUhYX]bmcifbcfaU`
`]ghYb]b[dcg]h]cbhch\Y`YZhcihdihhYfa]bU`g Ybgif]b[h\Uhh\YfYXdcg]h]jYhYfa]bU`
cbh\YUad`]ÑYf]gWcbbYWhYXhch\YfYXdcg]h]jYhYfa]bU`cbmcif`ciXgdYU_Yf"8ch\Y
gUaYk]h\h\YV`UW_cfbY[Uh]jY!hYfa]bU`g"FYdYUhh\]gdfcWYggZcfh\Yf][\hcihdihg"
 G5!FYZYfYbWYCihdih GdYU_Yf7UV`Yg GdYU_Yf

14
TERMINATION QUALITY
EiU`]hmcZh\YWcbbYWh]cbgaighVYYlUa]bYXhcYbgifYh\Uh\][\dYfZcfaUbWY
hfciV`YZfYYcdYfUh]cb]gYb^cmYX"7\YW_h\Uhh\YWcbbYWh]cbgUfYh][\hVihXcbch
cjYfh][\hYb"=ZVUfYk]fYgUfYigYXaU_YgifYh\Uhbc`ccgYghfUbXgcZk]fYg\cfh
Wfcggh\Ych\YfhYfa]bU`gcfh\YUad`]Z]YfW\Ugg]g"K\Ybig]b[d`i[ggiW\Ug
VUbUbUg VYgifYhcigY[ccXeiU`]hmd`i[gk]h\UZ]faZ]h"
BI-WIRING
6]!k]f]b[igYghkcdU]fgcZ`ciXgdYU_YfWUV`YgZcfYUW\W\UbbY``ciXgdYU_Yf"Mci
k]``bch]WYh\Uhh\YfYUfdUbY`cZmcifD@=B=IGG5!FYZYfYbWY\UghkcdU]fgcZcihdih
hYfa]bU`gZcfh\]gdifdcgY"K\Ybig]b[V]!k]fYg]bUGH9F9C]bghU``Uh]cb WcbbYWh
YUW\k]fYdU]fhcUWcffYgdcbX]b[dU]fcZV]bX]b[dcghgcbYWUV`Yhch\YhcddU]f cbY
WUV`Yhch\YVchhcadUm]b[gdYW]U`UhhYbh]cbhcdcg]h]jYfYXUbXbY[Uh]jY!V`UW_
dc`Uf]hm"K]h\UACBCgYhidfYaYaVYfh\UhmcifgdYU_Yfk]fYgaighigYh\YfYX
dcg]h]jYcihdihdcghgCB@M"7cbbYWhcbYgdYU_YfWUV`Yhch\Yhcddcg]h]jYfYX
V]bX]b[dcghg UbXh\Ych\YfgdYU_YfWUV`Yhch\Y`ckYfdcg]h]jYfYXV]bX]b[dcghg"
PHASING (OR POLARITY)
=h]g]adcfhUbhhcUW\]YjY[ccXghYfYc]aU[]b[]bmcif`]ghYb]b[fcca"6mcVgYfj]b[
h\Yk]f]b[]bghfiWh]cbgUVcjY YUW\DckYf5ad`]Z]Yf#`ciXgdYU_YfWcaV]bUh]cbg\ci`X
VY]bd\UgY"=ZmciYldYf]YbWYdccfghYfYc]aU[YUbX#cfU`UW_cZVUgg W\YW_h\Uh
h\Y`ciXgdYU_Yfk]f]b[\UgVYYbWcbbYWhYXWcffYWh`m"KYfYWcaaYbXh\UhmciigY
cbYcZh\YYUg]`mcVhU]bUV`YÇhYghX]gWgÈhc\Y`dmciYbgifYVch\d\Ug]b[UbXW\UbbY`
cf]YbhUh]cbUfYWcffYWh"=Z]bXciVh Wcbgi`hmcifD`]b]igXYU`YfZcfUXj]WY"
HcUW\]YjYUgcibXdYfZcfaUbWYh\Uh]gWcffYWh`mU`][bYXhcmciffcca aU_YgifYU``
cZh\Y`YUXgWUffm]b[g][bU`gZcfh\Yf][\hW\UbbY``ciXgdYU_YfUfYWcbbYWhYXhch\Y
f][\h]bdihhch\YUad`]Z]YfZfcamcifdfYUad`]Z]YfcfWXd`UmYfYhW"G][bU`gZcfh\Y`YZh
W\UbbY`g\ci`XVYk]fYX]bUg]a]`UfZUg\]cb"
BRIDGED/MONO CONNECTIONS
H\YfYUfYYggYbh]U``mZcifX]ZZYfYbhkUmgh\UhmciWUbWcbbYWhmcifgmghYa
WcadcbYbhghch\YD@=B=IGG5!FYZYfYbWYDckYf5ad`]Z]Yf.
%" F75GH9F9C
&" F756F=8;98ACBC
'" L@FGH9F9C
(" L@F65@5B798ACBC

15
RCA BRIDGED MONO
H\]gcdh]cbWcbZ][ifYgmcifUad`]Z]YfhcXf]jYcbY`ciXgdYU_YfZfcacbYibVU`UbWYX
g][bU`ZYXhch\YfYXF=;<HF75]bdih"=bVf]X[YXacbcacXYh\Ycb`m]bdihaUXY
hcmcifdfYUad`]Z]Yf]ghch\YfYXF=;<HW\UbbY`F75]bdih"H\YV`UW_@9:HW\UbbY`
F75]bdih]gbchWcbbYWhYX"
BYlhmcif`ciXgdYU_YfgUfYWcbbYWhYXhcVch\dcg]h]jYW\UbbY`cihdihhYfa]bU`g"
Gch\Ydcg]h]jYfYXWcbbYWh]cbcbmcif`ciXgdYU_Yf]gWcbbYWhYXhch\YfYXF=;<H
Uad`]Z]Yfcihdih UbXh\YbY[Uh]jYV`UW_WcbbYWh]cbcbh\Y`ciXgdYU_Yfg\ci`XVY
WcbbYWhYXhch\YfYX@9:HUad`]Z]Yfcihdih"
8CBCH7CBB97H5BMH<=B;HCH<9B9;5H=J9!H9FA=B5@G"A5?=B;5
7CBB97H=CBHCH<9B9;5H=J9!H9FA=B5@GC:H<95AD@=:=9F=BH<=GAC89
75B75IG9G9F=CIG85A5;9
MciWUbgh]``WcbbYWhhkc`ciXgdYU_Yfgig]b[h\Y`ckYfdcg]h]jYUad`]Z]Yfcihdih
hYfa]bU`g"H\]g]gYld`U]bYX]bh\YV]!k]f]b[gYWh]cbdfYj]cig"Bckhifbh\Y57Ggk]hW\
Zi``mW`cW_k]gYh\YbcbYdcg]h]cbWcibhYf!W`cW_k]gYgch\Uh]h]g]bh\YF756f]X[YX
Acbcdcg]h]cb"
XLR BALANCED MONO
5gk]h\F756f]X[YXAcbc h\]gcdh]cbWcbZ][ifYgmcifUad`]Z]YfhcXf]jYcbY
`ciXgdYU_Yf VihZfcacbYVU`UbWYX`]bY]bdihWcbbYWhYXhch\YF=;<HL@F=bdih"
=bVU`UbWYXacbcacXYh\Ycb`m]bdihaUXYhcmcifdfYUad`]Z]Yf]ghch\YF=;<H
W\UbbY`L@F]bdih"H\Y@9:HW\UbbY`L@F]bdih]gbchWcbbYWhYX"
BYlhmcif`ciXgdYU_YfgUfYWcbbYWhYXhcVch\dcg]h]jYW\UbbY`cihdihhYfa]bU`g"
Gch\Ydcg]h]jYfYXWcbbYWh]cbcbmcif`ciXgdYU_Yf]gWcbbYWhYXhch\YfYXF=;<H
Uad`]Z]Yfcihdih UbXh\YbY[Uh]jYV`UW_WcbbYWh]cbcbh\Y`ciXgdYU_Yfg\ci`XVY
WcbbYWhYXhch\YfYX@9:HUad`]Z]Yfcihdih"
8CBCH7CBB97H5BMH<=B;HCH<9B9;5H=J9!H9FA=B5@G"A5?=B;5
7CBB97H=CBHCH<9B9;5H=J9!H9FA=B5@GC:H<95AD@=:=9F=BH<=GAC89
75B75IG9G9F=CIG85A5;9
MciWUbgh]``WcbbYWhhkc`ciXgdYU_Yfgig]b[h\Y`ckYfdcg]h]jYUad`]Z]Yfcihdih
hYfa]bU`g"H\]g]gYld`U]bYX]bh\YV]!k]f]b[gYWh]cbdfYj]cig"
Bckhifbh\Y57Ggk]hW\Zi``mWcibhYf!W`cW_k]gYgch\Uh]h]g]bh\YL@F6U`UbWYX
Acbcdcg]h]cb"

16
CONNECTING THE MAINS SUPPLY
:]fgh`m W\YW_h\Uhh\YaU]bggidd`mjc`hU[Ydf]bhYXcbh\YfYUfcZh\]gUad`]Z]Yf]g
g]a]`Ufhch\YaU]bggidd`mjc`hU[Y]bmcifUfYU"=Z]bXciVh d`YUgYWcbgi`hmcif
D`]b]igXYU`Yf"AU]bggidd`mdckYfWcbbYWh]cb]gj]Uh\Yd`i[!]b`YUXgidd`]YXk]h\
mcifD@=B=IGG5!FYZYfYbWY"
7\YW_h\YkU``cih`Yh]ggk]hW\YXC:: h\YbWcbbYWhh\Y`cWU`aU]bgd`i[YbXcZh\Y
`YUXhch\YkU``cih`Yh"7\YW_h\YG5!FYZYfYbWY]ggk]hW\YXC:: UbXWcbbYWhh\Y=97
YbXcZh\YWUV`Yhch\Y=97gcW_YhUhh\YVUW_cZh\YG5!FYZYfYbWY"K]h\h\YWcfXZi``m
WcbbYWhYX gk]hW\h\YkU``cih`YhCB"
Bckh\UhmcifD@=B=IGG5!FYZYfYbWY]gWcbZ][ifYXWcffYWh`m gk]hW\h\YdckYfgk]hW\
cbh\YfYUfdUbY`hcCB"H\YX]gd`Um@98k]``WmW`Y]bVf][\hbYggZcfUddfcl]aUhY`mhYb
gYWcbXgUgh\Y]bhYfbU`W]fWi]hfmghUV]`]gYg"IgYh\YAIH9gk]hW\cbh\YZfcbhdUbY`
hchU_Yh\Yib]hcihcZAIH9UbXmciWUbbckYb^cmmcifbYkD@=B=IGG5!FYZYfYbWY
DckYf5ad`]Z]Yf"
BCH9.H\]gib]haighVYWcbbYWhYXhcUaU]bggcW_Yhcih`Yhk]h\UdfchYWh]jYYUfh\]b[
WcbbYWh]cb"H\YkU``cih`YhgcW_YhcfG5!FYZYfYbWYaU]bggk]hW\aighVYUWWYgg]V`Y
UhU``h]aYg]bWUgYcZYaYf[YbWm"
WARM-UP PERIOD
Mcik]``Z]bXh\Uhh\YD@=B=IGG5!FYZYfYbWYk]``VYWcaYbch]WYUV`mÇdifYfÈ]bgcibX
UZhYfVY]b[cbZcfUdYf]cXcZh]aY"KYigiU``mfYWcaaYbXkU]h]b[Uh`YUgh&(\cifg
VYZcfYYldYWh]b[h\YVYgheiU`]hmcZgcibXfYdfcXiWh]cbZfcamcifUad`]Z]Yf"KY
gi[[Ygh`YUj]b[h\Yib]hhifbYXcbgch\Uh]hk]``U`kUmgVYUh]hÈggcb]WVYgh"
G5!F9:9F9B79:95HIF9G
ERROR DETECTION
H\YD@=B=IGG5!FYZYfYbWYDckYf5ad`]Z]Yf\Ug]b!Vi]`hYffcfXYhYWh]cb"H\]gk]``
ZibWh]cbibXYfh\YZc``ck]b[WcbX]h]cbg.
% K\Ybh\YUad`]Z]Yf]gcjYfXf]jYb#W`]ddYX
& =ZUbm]bhYfbU`ZigY]gXUaU[YX
G\ci`XY]h\YfcZh\YgYW]fWiaghUbWYgUf]gYh\YUad`]Z]Yfk]``X]gWcbbYWhVch\

17
W\UbbY`gUbXaihYh\Y]bdih"H\]gWcbX]h]cbk]``fYaU]bibh]`h\Y]bdihg][bU``YjY`]g
fYXiWYXcfh\YXUaU[YXZigYfYd`UWYX"K\YbYffcfXYhYWh]cb]ghf][[YfYXh\YdckYf
@98k]``hifbcZZUbXh\YaihY@98k]``di`gY"H\Y]bhYfbU`Yffcf@98`cWUhYXhckUfXg
h\YZfcbhcZh\YW]fWi]hVcUfX]bh\YhcdWUj]hmcZh\YUad`]Z]Yfk]``U`gc`][\h"
FUSE PROTECTION
K\YbUbm]bhYfbU`ZigY]gXUaU[YXcbYcfacfYZigYkUfb]b[@98gk]```][\h"H\YgY
@98gUfYibXYfh\YUad`]Z]Yf`]X`cWUhYXhch\YZfcbhf][\hcZh\YaU]bW]fWi]hVcUfX"
G\ci`XUbmcZh\Y]bhYfbU`ZigYgbYYXhcVYfYd`UWYX YbgifYh\UhmcifUad`]Z]Yf]g
gk]hW\YXC::UbXX]gWcbbYWhYXZfcah\YaU]bggidd`mZcfUh`YUgh'$a]bihYg"H\Y
VUgYcZh\YUad`]Z]Yfk]``h\YbbYYXhcVYfYacjYXUbXh\YZigYg`cWUhYX"H\YfU]`
ZigYgUfYbYUfh\Ya]XX`YcZh\YW]fWi]hVcUfX"FYd`UWYh\Yak]h\h\YgUaYhmdYcb`m"
=ADCFH5BH.8CBCH:=H5:IG9K=H<5<=;<9FF5H=B;"
BCH9.:igYZU]`ifYaUm]bX]WUhYUgYjYfYdfcV`Ya"7\YW_U``gdYU_YfgUbXgdYU_Yf
WUV`YgZcfXUaU[YYhW"G\ci`Xh\YUad`]Z]YfWcbh]biYhcYl\]V]hfU]`ZigYZU]`ifY
WcbhUWhmcifD`]b]igXYU`Yf"
ECOLOGIC CONTROL
H\YD@=B=IGG5!FYZYfYbWY]gU`gcZ]hhYXk]h\Ua]WfcdfcWYggcfk\]W\acb]hcfgUbX
dYfZcfagh\Y6]UgUbXAihYZibWh]cbg"=h]gdfc[fUaaYXhcgk]hW\h\YUad`]Z]YfVUW_
]bhc7`Ugg56]Zbcg][bU`\UgVYYbdfYgYbhUhh\Y]bdihZcfUdfYXYhYfa]bYXh]aY"
H\]gh]aYWUbVYUX^ighYXhcCZZ %) '$cf*$a]bihYg"8if]b[h\Y`Ugha]bihYk]h\cih
g][bU`h\YV]Ug@98k]``di`gYhc]bX]WUhYh\Yib]h]gUVcihhcfYhifbhc7`Ugg56"
H\YdifdcgYcZh\]gZibWh]cb]ghcdfYjYbhh\YUad`]Z]YfVY]b[`YZh]b7`Ugg5k\]`Y
ibUhhYbXYXZcfU`cb[dYf]cXcZh]aY"
6YZcfYUX^igh]b[h\]gh]aYWcbghUbh YbgifYh\UhmcifUad`]Z]Yf]ggk]hW\YXC::UbX
X]gWcbbYWhYXZfcah\YaU]bggidd`m"FYacjYh\YUad`]Z]Yf`]XUbX`cWUhYh\YgaU``
^iadYf>D%cbh\YaU]bW]fWi]hVcUfXUhh\YZfcbh`YZh"5X^ighaYbhgUfYh\YbaUXYVm
g\]Zh]b[h\Y^iadYfhch\YUddfcdf]UhY`m`UVY``YXd]bg"H\YZUWhcfmgYhh]b[]g'$a]bihYg"
9Wc`c[]W>iadYf  :igYAcb]hcf@98g 9ffcf@98

18
MAINS/LINE FUSE
5AU]bg#@]bYZigY]gZ]hhYXk]h\]bh\Y=97AU]bg#@]bYgcW_Yhcbh\YfYUfcZh\YUad`]Z]Yf"
5gaU``XfUkYfUhh\YVchhcacZh\]ggcW_YhaUmVYfYacjYXUZhYfh\Y=97d`i[]g
fYacjYXVm`YjYf]b[]hcihk]h\UZ`UhV`UXYgWfYkXf]jYf"H\YZigYZ]hhYXg\ci`XVY
fUhYXUggdYW]Z]YXcbh\YfYUfdUbY`"
=bh\YibigiU`YjYbhh\Uhh\]gZigYg\ci`XV`ck mciaighZ]fghYghUV`]g\h\YWUigYcZ
h\]gZU]`ifYgiW\UgdckYfgif[Yg XUaU[YXaU]bgWUV`YYhW"VYZcfYfYd`UW]b[h\Y
ZigYk]h\cbYcZh\YgUaYfUh]b[UbXhmdY"
=ADCFH5BH.8CBCH:=H5:IG9K=H<5<=;<9FF5H=B;"
BCH9.:igYZU]`ifYaUm]bX]WUhYUgYjYfYdfcV`Ya"G\ci`Xh\YUad`]Z]YfWcbh]biYhc
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