Bryston 3B3 User manual

3B3 &4B3*-)&Ɯ"/
Owner’s Manual

The lightning flash with arrowhead symbol within an equilateral triangle, is
intended to alert the user to the presence of un-insulated“dangerous volt-
age“ within the product’s enclosure that may be of sufficient magnitude to constitute
a risk of electric shock to persons.
The exclamation point within an equilateral triangle is intended to alert the user
to the presence of important operating and maintenance (servicing) instructions
in the literature accompanying the product.
1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this apparatus near water.
6. Clean only with dry cloth.
7. Do not block any ventilation openings. Install in accordance with the
manufacturer’s instructions.
8. Do not install near any heat sources such as radiators, heat registers, stoves, or
other apparatus (including amplifiers) that produce heat.
9. Do not defeat the safety purpose of the polarized or grounding-type plug. A
polarized plug has two blades with one wider than the other. A grounding type
plug has two blades and a third grounding prong. The wide blade or the third
prong are provided for your safety. If the provided plug does not fit into your
outlet, consult an electrician for replacement of the obsolete outlet.
10. Protect the power cord from being walked on or pinched particularly at plugs,
convenience receptacles, and the point where they exit from the apparatus.
11. Only use attachments/accessories specified by the manufacturer.
12. Use only with the cart, stand, tripod, bracket, or table specified by the
manufacturer, or sold with the apparatus. When a cart is used use
caution when moving the cart/apparatus combination to avoid injury
from tip-over.
13 Any terminals marked with the preceding symbol are HAZARDOUS
LIVE and any wiring connected to these terminals must be installed
by an INSTRUCTED PERSON or with ready-made leads or cords.
14. Unplug this apparatus during lightning storms or when unused for long periods of
time.
15. Refer all servicing to qualified service personnel. Servicing is required when the
apparatus has been damaged in any way, such as power-supply cord or plug is
damaged, liquid has been spilled or objects have fallen into the apparatus, the
apparatus has been exposed to rain or moisture, does not operate normally, or has
been dropped.
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS
APPARATUS TO RAIN OR MOISTURE. DO NOT EXPOSE THIS EQUIPMENT TO DRIPPING OR
SPLASHING AND ENSURE THAT NO OBJECTS FILLED WITH LIQUIDS, SUCH AS VASES, ARE
PLACED ON THE EQUIPMENT. TO COMPLETELY DISCONNECT THIS EQUIPMENT FROM THE AC
MAINS, DISCONNECT THE POWER SUPPLY CORD PLUG FROM THE AC RECEPTACLE.
THE MAINS PLUG OF THE POWER SUPPLY CORD SHALL REMAIN READILY OPERABLE.
BRYSTON LIMITED WARRANTY
Bryston analog audio products are warranted to be free from manufacturing defects for twenty (20) years from the original date of manufacture. The warranty includes parts and labour.
Bryston digital products and cables are warranted for five years from the original date of manufacture. The warranty includes parts and labour.
Bryston products having motorized moving parts, excluding motorized volume controls, are warranted for three years from the original date of manufacture. The warranty includes parts
and labour.
Bryston will remedy the problem by repair or replacement, as we deem necessary, to restore the product to full performance. Bryston will pay return shipping only for the full length of
the specific product's warranty.
In the event of a defect or malfunction, contact Bryston’s repair centers for return authorization. Products must be returned using original packaging material only. Packing material may
be purchased from Bryston if necessary. This warranty is considered void if the defect, malfunction or failure of the product or any component part was caused by damage (not resulting
from a defect or malfunction) or abuse while in the possession of the customer. Tampering by persons other than factory authorized service personnel or failure to fully comply with Bryston
operating instructions voids the warranty.This warranty gives you specific legal rights and you may also have other rights which may vary from province to province and country to country.
As of 2006-02-22 Bryston will only warranty Bryston products purchased through authorized Bryston dealers. Bryston products with a date code of 0608 or higher (date code format is
“yyww”, where“yy” is the two least significant digits of the year and“ww”is the week of the year) must be accompanied by a copy of the bill-of-sale from a Bryston authorized dealer to
qualify for warranty service. The warranty is transferable from the original owner to a subsequent owner as long as a copy of the bill-of-sale from the original authorized Bryston dealer
accompanies the re-sale. The copy of the bill of sale to any subsequent owner need ONLY include the Name of the Bryston Authorized Dealer and the Model and Serial number of the
Bryston product The warranty will only be honored in the country of the original purchase unless otherwise pre-authorized by Bryston.
Postal address: P.O. BOX 2170, Stn. Main
PETERBOROUGH, ONTARIO
CANADA K9J 7Y4
Courier address: 677 NEAL DRIVE
PETERBOROUGH, ONTARIO
CANADA K9J 6X7
PHONE: [phone]
FAX: [phone]
E-mail: [email protected]
79 COVENTRY ST., Suite 5
NEWPORT, VERMONT
U.S.A. 05855-2100
PHONE: [phone]
FAX: [phone]
E-mail: [email protected]
BRYSTON SERVICE in CANADA: BRYSTON SERVICE in the USA:
contact your local distributor or
CHECK OUR WEB SITE: www.bryston.com
E-MAIL BRYSTON DIRECTLY: [email protected]
FAX BRYSTON DIRECTLY: 01-705-742-0882
PHONE BRYSTON DIRECTLY: 01-705-742-5325
BRYSTON SERVICE outside Canada and the USA:
Important Safety Instructions

Table of Contents
Important Safety Instructions .................................... 2
General.........................................................................3
Welcome ................................................................3
Description ............................................................3
Features .................................................................3
Shipping Box and Packing Material......................3
Installation and Usage ................................................4
Ventilation .............................................................4
Connecting to A/C Power......................................4
Connecting to Loudspeakers: 2 Channel Mode ...4
Connecting Audio Inputs ...................................... 4
Balanced vs. Single Ended Input..........................5
Power Conditioners ..............................................5
External Control Voltage.......................................5
Connecting to Loudspeakers: Bridged Mode.......6
Front Panel ..................................................................7
Rear Panel....................................................................8
3B3-" &Ɯ 1&,+0...................................................... 10
4B3-" &Ɯ 1&,+0...................................................... 10
Dimensions................................................................ 11
Welcome
%+(6,2#,/6,2/-2/ %0",#/601,+ǘ3
,/Ǚ3ț2"!Ȝ*-)&Ɯ"/Ȃ" !"0,#,+$,&+$
/"0"/ %+!!"3"),-*"+1%3"-/,!2 "!,2/
%&$%"01-"/#,/*&+$*-)&Ɯ"/06"1ǽ2/ 201,*"/0
/"1/"*"+!,20/"0,2/ "1,4%,*4"),,(#,/
*"02/",#02 "00ǽ)"0"#"")4") ,*"1, ,+1 1
204&1%#""! (+!02$$"01&,+0ǽ
Description
%"ǘ3+!Ǚ3/"!2)*,+,!"0&$+2!&,
-,4"/*-)&Ɯ"/04&1%14, %++")0 -)",#ǗǕǕ
4110+!ǘǕǕ4110" %/"0-" 1&3")6&+1"+!"!#,/
20"&+3"/6%&$%-"/#,/*+ "-/,#"00&,+)2!&,
0601"*0ǽ,2016"1"21&#2)* %&+"!)2*&+2*
"+ ),02/"0%,20",2/-/,-/&"1/6&+!201/6Ȓ)"!&+$
&/ 2&1!"0&$+0/"02)1&+$&+"5"*-)/6-"/#,/*+ "
,0"/3"!,1%&+1%")&01"+&+$0- "+!&+1%"
),/1,/6ǽ
Ȓ"/&"03/&+10/"3&))"&+6,2/ %,& ",#ǖǜ
&+ %,/ǖǞ&+ %4&!"+,+Ȓ/ (*,2+1)")2*&+2*
!/"00-+")0+,!&7"!&+ )"/ț0&)3"/1,+"!Ȝ,/
) (ǽ&+"1""+&+ %4&!"Ȓ"/&"0*-)&Ɯ"/0
&+ )2!"#/,+1*,2+1"!%+!)"0ǽ*-)&Ɯ"/0
#"12/"ǖǞ&+ %4&!"/ (*,2+1)"!/"00-+")0
4&1%) (+,!&7"!#/,+1Ɯ+&0%+!)0,&+ )2!"
&+!&3&!2) %++")1/&*0), 1"!,+1%"/"/-+")ǽ
Features
/601,+ǘ3+!Ǚ3&+ )2!"1%"#,)),4&+$#"12/"0ǿ
• 4&1 %)"$&+ǿǗǘ!,/ǗǞ!
• )+ "!ț,/Ȝ&+-21ǽ&+Ǘ-,0&1&3"ǽ
• &+$)""+!"!țȜ&+-21ǽ
• ,ƞ1/1 &/ 2&1/6#,/*+$&+$&+/20% 2//"+1
2-,+&+&1&)-,4"/2-ǽ
• &/"!/"*,1" ,+1/,)ȡ1/&$$"/&+-21+!
-001%/,2$%4&1%02--)&"! ,++" 1,/ǽ
• /&!$"!,21-21*,!"3&))"ǽ
Shipping Box and Packing Material
)"0"(""-1%",/&$&+)0%&--&+$,5+!))
- (&+$*1"/&)ǽ%&04&))"+02/"1%"*-)&Ɯ"/&0
-/,1" 1"!&+#212/"1/+0-,/1ǽ+1%"2+)&(")6"3"+1
6,2%3"-/,)"*+!*201/"12/+&1#,/0"/3& "Ǿ
6,2*20120"1%"-/,-"/- (&+$*1"/&)ǽ%&-
1%"*-)&Ɯ"/,+)6&+1%",/&$&+)- (&+$*1"/&)Ǿ
01%"2+&1&0+,1&+02/)"6 //&"/0,1%"/4&0"ǽ
"-) "*"+1- (&+$*1"/&)0 ,+0&01&+$,#
0%&--&+$ /1,+4&1%-)01& #,*&+0"/10&03&))"
#/,*/601,+#,/0*))#""ǽ
General

4
Installation and Usage
Ventilation
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1%"*1,4,/(*,01"ƛ" 1&3")6Ǿ&/*201"
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ǘǽǚ&+ %"0,#0- "1," %0&!"Ǿ1,-+! (,#1%"
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&**"!&1")6,+1,-,#,+"+,1%"/&++"+ ),0"!
&+"1ǽ#6,2*20101 (1%"*-0Ǿ6,2*6+""!
1,21&)&7"#+0,/+,1%"/ 1&3" ,,)&+$*" %+&0*
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"5-"/&"+ " %++")00%211&+$!,4+!2"1,%"1Ǿ
/"//+$"1%"*-)&Ɯ"/01,%3"*,/"02//,2+!&+$
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21&,+1,-/"3"+12/+0ȂNever operate the
*-)&Ɯ"/&+3"/1& )-,0&1&,+ǽ
Connecting to A/C Power
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"#,/"-)2$$&+$&+1%"-,4"/ ,/!Ǿ*("02/"1%"
01"/&/ 2&1/"("/țȊǝǽ01"/&/ 2&1/"("/ǿȋ
,+-$"ǞȜ&004&1 %"!1,1%"Ȉȉ-,0&1&,+ǽ)2$
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1,"-,4"/"!,+ǽ
Connecting to Loudspeakers:
2 Channel Mode
,++" 1&,+1,),2!0-"("/0&0 ,*-)&0%"!6
11 %&+$%&$%.2)&160-"("/ )"1,1%"21-21
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$/,2+!ǽ,++" 11%&0-,011,1%"țȒȜ1"/*&+),+1%"
),2!0-"("/ǽ
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4%"+&Ȓ4&/&+$ǽ)"00%,2)!"("-100%,/1
0-/ 1& )+!0%,2)!+"3"/"1"/*&+1"!4&1%
,++" 1,/01%1*6" ,*" ,+#20"!#,/
-,4"/ ,++" 1,/0ǽ)"00%,2)!"!/"00"!46
#/,*&+-21+!-,4"/ )"0ǽ
++-)2$0,ƛ"/.2& (!&0 ,++" 1,-1&,+ǽ
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,)!-)1"!), (&+$++-)2$0/"3&))"#/,*
/601,+ǽ
-!")2$0-/,3&!"%&$% ,+1 1/"+!0" 2/"
#01"+&+$ǽ2$00%,2)!"$,)!
-)1"!ǽ,01!&*"1"/&0ǚȡǖǛȋ
țǝ**ȜǾ)2$4&!1%ǚȡǝȋțǖǛ**Ȝǽ
,)!-)1"!0-!")2$0/"
3&))"#/,*/601,+ǽ
1/&--"!/"4&/"2-1,ǘ$2$" +"&+0"/1"!
1%/,2$%1%"%,)"&+1%"&+!&+$-,01+!%")!
&+-) "61&$%1"+&+$1%"-,01(+,ǽ!!&1&,+)
1&$%1"+&+$-/"002/" +" %&"3"!20&+$ ,&+
&+1%"0),10,#1%"(+,ǽ,+,1,3"/1&$%1"+,/1%"
&+!&+$-,01*6" ,*"!*$"!ǽ,1"1%1
,--"/4&/"&0*))")"+!*6/".2&/"#2/1%"/
1&$%1"+&+$ƞ"/1%"&+&1&)&+01))1&,+ǽ
,-/"3"+11%"/&0(,#".2&-*"+1!*$",/
-"/0,+)%/*Ǿ20",+)6)00Ǘ/1"!),2!0-"("/
4&/"-/,-"/)61"/*&+1"!+! ,++" 1"!0" 2/")61,
1%"&+!&+$-,010ǽ

4B3&3B3*-)&Ɯ"/0
5
Connecting Audio Inputs
%"/601,+2"!*-)&Ɯ"/ +/" "&3"+),$
2!&,#/,*+6-/"*-,/02//,2+!-/, "00,/4&1%
3,)2*" ,+1/,))"!)&+"Ȓ)"3"),21-210ǽ)+ "!
+!04"))00&+$)"!"+!"!&+-210/"
,1%3&))"+! +"0")" 1"!20&+$1%"+-21
")" 104&1 %,+1%"/"/-+"),#1%"*-)&Ɯ"/ǽ
Balanced vs. Single Ended Input
%")+ "!&+-21/".2&/"0)+ "!-/"Ȓ*-
0,2/ "ǽ)+ "!0601"*0-/,3&!"+,&0"/"'" 1&,+
#/,*"51"/+)")" 1/& )&+1"/#"/"+ "Ǿ0, )"
)"+$1% +"3"/6),+$ȕǚǕ*"1"/0,/),+$"/ǽ%"
0&+$)""+!"!,/2+)+ "!&+-21&0-/,3&!"!#,/
-/"Ȓ*-04&1%,21)+ "!,21-21ǽ&+$)"Ȓ"+!"!
)"00%,2)!"("-11,ǗǕ#""1țǛ*"1"/0Ȝ,/)"00ǽ
+$"+"/)+"3"/20"),+$"/ )"01%++" "00/6Ǿ
+"3"/ ,&)"5 "00 )")"+$1%Ǿ+!(""-0&$+)4&/"0
46#/,*-,4"/,/0-"("/ )"0ǽ
Power Conditioners
/601,+2/$"0 21&,+&+ %,,0&+$-,4"/
,+!&1&,+"/#,/6,2/2!&,ȡ3&!",0601"*ǽ/$"
-,4"/*-)&Ɯ"/0 +!/43"/60201+1&) 2//"+1
#/,*1%"4))-)2$Ǿ+!*+60,Ȓ ))"!-,4"/
,+!&1&,+"/0 +&+# 1%&+!"/1%"02--)6,# 2//"+1
6&+0"/1&+$/"0&01+ "0&+0"/&"04&1%1%")&+" ,/!ǽ
,4"3"/Ǿ1%"/"/"+,4-,4"/ ,+!&1&,+"/01%1
+/"!2 ",/")&*&+1"+!Ȉ%0%ȉ#/,*1%"
02--)6+!*6 12))6&*-/,3" 2//"+1!")&3"/6
1,6,2/0601"*ǽ%&016-",#-,4"/ ,+!&1&,+"/
ț"5"*-)&Ɯ"!6/601,+-/,!2 10Ȝ20"01%"
"+"/$601,/$"&+)/$"1,/,&!)1/+0#,/*"/1,
-/,3&!"%&$%&+01+1+",20-,4"/+!/"!2 "
1%"0201+1&),21-21/"0&01+ ",#1%"4))
0, ("1+!%,20"4&/&+$ǽ%&0/"0&01+ " +"&+
1%"/+$",#Ǖǽǚ1,ǖ%*+!&016-& ))6/"!2 "!
1,,+)6#"4*&))&,%*061%"-,4"/ ,+!&1&,+"/ǽ
%1&+12/+ ,+0&!"/)6/"!2 "03,)1$"!/,-&+
1%"-,4"/)&+",+%&$% 2//"+102/$"0+!.2&1"
0201+1&))6&+ /"0"01%"01&)&16,#1%"-,4"/)&+"
&*-/,3&+$2!&,ț+!3&!",Ȝ#, 20Ǿ-/" &0&,++!
)/&16ǽ
External Control Voltage
,-,4"/Ȓ2-1%"*-)&Ɯ"/20&+$+"51"/+) ,+1/,)
3,)1$"Ǿ02--)6ǚ1,ǖǗț,/Ȝ ,+1/,)
3,)1$"1,1%"Ȉȉ1"/*&+)0,# ,++" 1,/țƜ$ǽǖȜǽ0"
-&/"!4&/",#ǗǗ1,ǖǝ$2$""14""+1%"0,2/ "
!"3& "+!1%"/601,+2"!0"/&"0*-)&Ɯ"/ǽ%"
--/,-/&1"*1&+$ ,++" 1,/&002--)&"!4&1%" %
*-)&Ɯ"/ǽ
"11%"51"/+)2/+Ȓ+04&1 %1,Ȋ51"/+)ȋ""
ȊǖǕǽ"*,1",4"/-ǿȋ,+-$"Ǟǽ) "1%"
#/,+1-+")04&1 %&+1%"-,0&1&,+ǽ%"*-)&Ɯ"/
4&))+,4-,4"/Ȓ2-,+)64%"+1%" ,+1/,)3,)1$"&0
-/"0"+1ț,+Ȝǽ**"!&1")6#,)),4&+$-,4"/Ȓ2-Ǿ1%"
,+1/,)3,)1$"4&))--"/11%"ȉȉ1"/*&+)0
,# ,++" 1,/#,/1%" ,+1/,),#,1%"/".2&-*"+1ǽ
%"/"*,3),#1%" ,+1/,)3,)1$"țǕ3Ȝ 20"01%"
*-)&Ɯ"/1,12/+Ȉ,ƛȉǾ+!1%" ,+1/,)3,)1$"11%"
Ȉȉ1"/*&+)0&0&+1"//2-1"!ǽ
+1%"Ȋ, )ȋ0"11&+$,#1%"51"/+)2/+Ȓ+04&1 %
1%"*-)&Ɯ"/4&))&$+,/"1%" ,+1/,)3,)1$"+!
-,4"/2-,+)6620&+$1%"#/,+1-+")-20%Ȓ211,+
-,4"/04&1 %ǽ# ,+1/,)3,)1$"&0-/"0"+111%"
Ȉȉ1"/*&+)0Ǿ&14&))01&))"3&))"11%"Ȉȉ
1"/*&+)0ƞ"/1%"-,4"/Ȓ2-0".2"+ "ǽ
Note:
%"Ȉȉ1"/*&+)0/" ,++" 1"!1,1%"Ȉȉ
1"/*&+)0,+ "1%"*-)&Ɯ"/%0-,4"/"!Ȓ2-ǽ
%" ,+1/,) 2//"+1&0!"1"/*&+"!61%"0,2/ "
".2&-*"+1ǽ%" //6&+$ 2//"+1,#1%"Ȉȉ/")6
&0Ǘ*-0ǽ%"*-)&Ɯ"/ȉ0 ,+1/,) &/ 2&1/6&10")#
!/40)"001%+Ǘ*#/,*1%" ,+1/,) 2//"+14%"+
,-"/1&+$ǽ
REMOTE POWER TURN-ON
PLUG-IN CONNECTOR
Insert stripped ends of insulated wires revealing
approx. 1/4" of bare, stranded copper wire between
24 and 12 AWG (.5mm to 2mm dia.) into open elevator
style wire clamps & tighten with a slot screw driver.
Do not over tighten or wires may eventually come
lose. Maximum tightening torque is 4.5 lb-in (0.5Nm) Figure 1

6
Connecting to Loudspeakers:
Bridged Mode
Ȋ/&!$"!*,!"ȋ ,++" 101%"&+!&3&!2) %++")0
&+0"/&"01,#,/*0&+$)"*-)&Ɯ"/ %++")ǽ%"
-/&*/6/"0,+#,/!,&+$1%&0&01, %&"3"0&+$)"
*-)&Ɯ"/ %++")4&1%*2 %$/"1"/,21-21-,4"/ǽ
%"+14,ǘ3 %++")0,/14,Ǚ3 %++")0/"
/&!$"!Ǿ1%" ,*&+"!0&+$)" %++")4&)),21-21
2-1,14,1&*"01%",/&$&+)3,)1$"+!1%"/"#,/"Ǿ
1%",/"1& ))6Ǿ#,2/1&*"01%"-,4"/,#0&+$)"
&+!&3&!2) %++")ǽ+-/ 1& "Ǿ1%" 12),21-21
-,4"/ %&"3"!&0)&*&1"!61%" -&)&16,#1%"
-,4"/02--)604"))01%"&)&16,#1%"*-)&Ɯ"/
1,!&00&-1"1%"&+ /"0"!%"11%1&0$"+"/1"!ǽ
10%,2)!+,1"!1%11%"202)*&+&*2*),!
,++" 1"!1,-&/,#/&!$"!ǘ3,/Ǚ3 %++")0
0%,2)!"$/"1"/1%+,/".2)1,ǝ%*0ǽ
,-/"3"+11%"/&0(,#".2&-*"+1!*$",/
-"/0,+)%/*Ǿ20",+)6)00Ǘ/1"!),2!0-"("/
4&/"-/,-"/)61"/*&+1"!+! ,++" 1"!0" 2/")61,
1%"&+!&+$-,010ǽ
,++" 1&,+0/",+)61,"*!"&+/"0
%&$%)&$%1"!&+1%"!&$/*"),4ǽ
• +)6%++")ȱǖ&+-21&020"!ǽ
• %"&+-21 +""&1%"/)+ "!,/2+Ȓ
)+ "!ǽ
•+)61%"14,RED&+!&+$-,01 ,++" 1,/0
/"20"!ț&ǽ"ǽ1%"BLACK,+"0/"20"!
+!*201%3"+,1%&+$ ,++" 1"!Ȝǽ
• %"%++")ǖRED&+!&+$-,01&01%"
-,0&1&3"-,)/&16+! ,++" 1"!1,țʭȜ,+
1%"),2!0-"("/ǽ%++")ǗRED&+!&+$
-,01 ,++" 1,/&0+"$1&3"-,)/&16+!
,++" 1"!1,țȒȜ,+1%"),2!0-"("/ǽ
• %"/&!$"!,21-21&0Ɲ,1&+$4&1%/"0-" 1
1,$/,2+!ǽ
ǽ
• ,"+$$"/&!$"!*,!"Ǿ-) "1%"
04&1 %Ǿ), 1"!,+1%"/"/-+")Ǿ&+1,1%"
-,0&1&,+Ǿ21"#,/"!,&+$0,Ǿ
*("02/"))&+-21+!,21-21 ,++" 1&,+0
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Model Number
Data Sticker
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
F
F
O
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I
I
I
I
I
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I
I
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I
I
I
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1
2
3
1
1
1
1
1
1
1
1
1
1
1
1
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
300W INTO 8300W INTO 8
29dB
23dB
MAINS SWITCH & BREAKER
++
--
SINGLE
ENDED
BALANCED
GAIN
+
-
+
_
_
+
3
G
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2 1
(8minimum load)
INPUTSMODE
INDI V IDUAL
BRID G ED
BALANCED
SINGLE ENDED
STATUS
BALANCED
SINGLE ENDED
PETERBOROUGH, ONTARIO, CANADA
MADE IN/FABRIQUE AUCANADA
IEC-320 C14 POWER INLET
LEVEL LEVEL
BRIDGED INDIVIDUAL
INDIVIDUAL
REMOTE POWER-UP
IN
OUT
LOCAL
EXTERNAL
RISK OFELECTRIC SHOCK - DONOT OPEN
CAUTION
PRECAUTION
RISQUE DECHOC ELECTRIQUE - NEPAS OUVRIR
ATTENTION
CAUTION
CAN ICES-3 (B)/NMB-3(B)
This device complies with FCC
Part 15, subpart B
WARNING
RISK OF HAZARDOUS
ENERGY. MAKE PROPER
SPEAKER CONNECTIONS.
USE CLASS 2 WIRING.
AVERTISSEMENT
RISQUE DE ÉNERGIE
DANGEREUSE. FAIRE
CONNECTIONS ENCEINTE
ADÉQUAT. UTILISATION
CÂBLAGE DE CLASSE 2.
WARNING
RISK OF HAZARDOUS
ENERGY. MAKE PROPER
SPEAKER CONNECTIONS.
USE CLASS 2 WIRING.
AVERTISSEMENT
RISQUE DE ÉNERGIE
DANGEREUSE. FAIRE
CONNECTIONS ENCEINTE
ADÉQUAT. UTILISATION
CÂBLAGE DE CLASSE 2.
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2
2
2
2
2
2
2
2
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
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3
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9
9
9
9
9
9
9
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d
d
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N
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B
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&+-21ǽ
2. Balanced Audio Input:
%&0&+-21 ,++" 1,/ "-1001+!/!ț-&+
ǖʲ/,2+!Ǿ-&+Ǘʲ,0&1&3"Ǿ-&+ǘʲ"$1&3"Ȝ,/
ǖȡǙȋ%,+"-)2$0ț0)""3"ʲ/,2+!Ǿ1&-ʲ,0&1&3"Ǿ
/&+$ʲ"$1&3"Ȝǽ0".2)&16ǾǖǕǕʢ0%&")!"!
)"04&1%$,)!-)1"! ,++" 1,/0ǽ
3. Single Ended Audio Input:
%&0&+-21 ,++" 1,/ "-1001+!/!Ȉȉ,/
Ȉ%,+,ȉ ,++" 1,/0ǽ0".2)&16ǾǖǕǕʢ0%&")!"!
)"04&1%$,)!-)1"! ,++" 1,/0ǽ
4. Gain Select Switch:
%",-1&*2*$&+0"11&+$4&))!"-"+!2-,+1%"
0,2/ "-/"Ȓ*-,-"/1&+$)"3")Ǿ+!,/-"/0,+)
-/"#"/"+ "ǽ
%"ǗǞ!0"11&+$&020"!4%"+1%"0,2/ "&0
0&+$)"Ȓ"+!"!,/#/,*1/+0#,/*"/ ,2-)"!
)+ "!0,2/ "ǽ%&0&01%"16-& )#,/0&+$)"
"+!"!,/2+Ȓ)+ "!,-"/1&,+ǽ%"ǗǞ!
0"11&+$-/,3&!"01%"*,01*-)&Ɯ"/$&++!
".21"01,ǖǕǕ4ȯǝ,%*0,21-21#,/ǖ&+-21
ț+,&0"ȒǖǖǕ!Ȝǽ
%"Ǘǘ!0"11&+$&020"!4%"+1%"0,2/ "
,21-21&0 1&3")6)+ "!ǽ%&0&01%"16-& )
0"11&+$#,/)+ "!,-"/1&,+ǽ/20"1%&0
0"11&+$4%"+"3"/)"00$&+&0/".2&/"!ǽ%"Ǘǘ!
0"11&+$".21"01,+,21-21,#ǖǕǕ4ȯǝ,%*0
#,/Ǘ&+-21ț+,&0"Ȓǖǖǘ!Ȝǽ
%"+,&0"&0/"#"/"+ "!&+!"),4/1"!
,21-21ǽ&ƛ"/"+1&+-21 ,+Ɯ$2/1&,+0/"02)1
&+0)&$%1)6!&ƛ"/"+1+,&0"/"!&+$0ǽ%",3"
+,&0"/1&+$0/"-/"0"+1*&+&*2*/"!&+$0ǽ
 12)/"!&+$0*6""11"/ǽ
5. Mode Switch:
%"&+!&3&!2)0"11&+$&0#,/14, %++")
,-"/1&,+ǽ/&!$"!*,!"&0#,/0&+$)" %++")
,-"/1&,+ǽ""Ȋ/&!$"!,!"ȋ,+-$"Ǜǽ
Rear Panel
Model Number
Data Sticker
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
F
F
O
o
o
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
300W INTO 8300W INTO 8
29d B
23d B
MAINS SWITCH & BREAKER
++
--
SINGLE
ENDED
BALANCED
GAIN
+
-
+
_
_
+
3
G
G
2 1
(8minimum load)
INPUTSMODE
IND IVI DUAL
BRI DGE D
BALANCED
SINGLE ENDED
STATUS
BALANCED
SINGLE ENDED
PETERBOROUGH, ONTARIO, CANADA
MADE IN/FABRIQUE AUCANADA
IEC-320 C14 POWER INLET
LEVEL LEVEL
BRIDGED INDIVIDUAL
INDIVIDUAL
REMOTE POWER-UP
IN
OUT
LOCAL
EXTERNAL
RISK OFELECTRIC SHOCK - DONOT OPEN
CAUTION
PRECAUTION
RISQUE DECHOC ELECTRIQUE - NEPAS OUVRIR
ATTENTION
CAUTION
CAN ICES-3 (B)/NMB-3(B)
This device complies with FCC
Part 15, subpart B
WARNING
RISK OF HAZARDOUS
ENERGY. MAKE PROPER
SPEAKER CONNECTIONS.
USE CLASS 2 WIRING.
AVERTISSEMENT
RISQUE DE ÉNERGIE
DANGEREUSE. FAIRE
CONNECTIONS ENCEINTE
ADÉQUAT. UTILISATION
CÂBLAGE DE CLASSE 2.
WARNING
RISK OF HAZARDOUS
ENERGY. MAKE PROPER
SPEAKER CONNECTIONS.
USE CLASS 2 WIRING.
AVERTISSEMENT
RISQUE DE ÉNERGIE
DANGEREUSE. FAIRE
CONNECTIONS ENCEINTE
ADÉQUAT. UTILISATION
CÂBLAGE DE CLASSE 2.
12 3 1254
6 78 9 10 11

4B3&3B3*-)&Ɯ"/0
9
6. Channel Level Attenuators (PRO
ONLY):
%")"3") ,+1/,)4&))11"+21"1%"&+-210&$+)
)"3")#/,*Ǖ!1%/,2$%ȒǖǙ!ǽ
7. Output Binding Posts:
%"&+!&+$-,01&0 ,++" 1"!1,1%"
*-)&Ɯ"/,21-21ǽ,++" 11,1%&0-,011%"țʭȜ
1"/*&+),+1%"),2!0-"("/#,/+,/*)ț+,+Ȓ
/&!$"!,/&+!&3&!2)Ȝ,-"/1&,+ǽ
%"&+!&+$-,01&0 ,++" 1"!1,0&$+)
$/,2+!ǽ,++" 11,1%&0-,011%"țȒȜ1"/*&+)
,+1%"),2!0-"("/#,/+,/*)ț+,+Ȓ/&!$"!,/
&+!&3&!2)Ȝ,-"/1&,+ǽ
+)620")00Ǘ1"!&/&+$ǽ,,1%"/4&/&+$&0
-"/*&11"!#,/20"ǽ
%",21-21&+!&+$-,010-/,3&!"1%/""!&ƛ"/"+1
&+1"/ ,++" 1,-1&,+0ǿ++-)2$0Ǿ0-!")2$0Ǿ
+!/"4&/"ǽ,*&+1&,+0*6"20"!4%"+
&Ȓ4&/&+$ǽ)"00%,2)!"("-100%,/10
-/ 1& )+!0%,2)!+"3"/"1"/*&+1"!4&1%
,++" 1,/01%1*6" ,*" ,+#20"!#,/
-,4"/ ,++" 1,/0ǽ)"00%,2)!"!/"00"!
46#/,*&+-21+!-,4"/ )"0ǽ
8. Master Circuit Breaker:
%"2"!0"/&"0*-)&Ɯ"/20"0*$+"1& Ȓ
1/&- &/ 2&1/"("/1,-/,1" 11%"*-)&Ɯ"/ǽ
%&0/"("/&0+,1+,+,ƛ04&1 %+!*201
"&+1%"Ȉȉ-,0&1&,+!2/&+$1%"&+01))1&,+
+!+,/*),-"/1&,+ǽ0"1%"#/,+1-+")
-20%Ȓ211,+-,4"/04&1 %,/+"51"/+)
,+1/,)3,)1$"1,-,4"/Ȓ2-,/-,4"/Ȓ!,4+
1%"*-)&Ɯ"/ǽ%,2)!1%"/"("/1/&-Ǿ,/04&1 %
ȊȋǾ),4"/,//"*,3"1%"*-)&Ɯ"/&+-21
0&$+)0ǽ"*,3"1%"-,4"/6!&0 ,++" 1&+$
1%"-,4"/ ,/!#/,*1%"*-)&Ɯ"/#,/ǗǕ
0" ,+!0ǽ4&1 %1%"/"("/1,1%"Ȉȉ-,0&1&,+ǽ
" ,++" 11%"-,4"/ ,/!Ǿ1%"+-,4"/1%"2+&1
2-+,/*))6ǽ%" &/ 2&1/"("/*201"Ȉȉ
1))1&*"0#,/1%"2"!"/&"0*-)&Ɯ"/1,
,-"/1"ǽ
9. A/C Power Input:
+ȒǘǗǕǖǙ-,4"/&+)"1-/,3&!"0#,/
,++" 1&,+,#+ȒǘǗǕǖǘ".2&--"!-,4"/
,/!ǽ"#,/" ,++" 1&+$1%"-,4"/ ,/!1,1%"
*-)&Ɯ"/Ǿ %" (1%11%"3,)1$"/1&+$,+1%"
!1-)1",//1&+$0)") ,+#,/*04&1%6,2/
), )&16ǽ&1%1%" &/ 2&1/"("/Ȉȉ&+0"/11%"
-,4"/ ,/!&+1,1%"2"!0"/&"0*-)&Ɯ"/Ǿ1%"+
-)2$1%",1%"/"+!1,+--/,-/&1"ȡ-,4"/
,21)"1ǽ
10. Remote Power Up:
%"+&+51"/+)-,0&1&,+Ǿ1%",4"/+011"
&0$,3"/+"!63,)1$"--)&"!1,1"/*&+)0
,#1%""*,1",4"/- ,++" 1,/ǽ%"#/,+1
-+")-,4"/04&1 %*201/"*&+&+1%"Ȉȉ
-,0&1&,+ǽȊ51"/+),+1/,),)1$"ȋ,+-$"
ǚ#,/&+01/2 1&,+0/"$/!&+$ ,++" 1&,++!
20$"ǽ
11. Power Status Indicator:
)2$$&+$&+1%"-,4"/ ,/!--)&"0-,4"/1,
1%"*-)&Ɯ"/ǽ%"01120&+!& 1,/4&))&+&1&))6
Ɲ0%$/""+ǽ%"+2*"/,#Ɲ0%"0&+!& 1"01%"
/"3&0&,+,#1%"0,ƞ01/1 &/ 2&10,ƞ4/"ǽ%&0
-2101%"*-)&Ɯ"/&+1+!6*,!"+!1%"
12/+0/"!&+!& 1&+$-,4"/&0-/"0"+1ǽ
+$$&+$1%"#/,+1-+"),+ȡ,ƛ04&1 %&+&1&)&7"0
1%"01/12-0".2"+ "ǽ2/&+$1%"0,ƞ01/1/*-
2-Ǿ,-"/1&,+1%"01120)"!4&))12/+,/+$"
4%"+ ,++" 1"!1,ǛǕ7-,4"/,//"!4%"+
,++" 1"!1,ǚǕ7-,4"/ǽ%"1120
04&1 %"01,$/""+4%"+1%"/*-2-0".2"+ "
"+!0ǽ2/+&+$,ƛ1%"#/,+1-+"),+ȡ,ƛ04&1 %
/"12/+01%"*-)&Ɯ"/1,1%"1+!6*,!"ǽ
12. Data Plate:
+&10-" &Ɯ &+#,/*1&,+&0-/&+1"!%"/"
&+ )2!&+$*,!")+2*"/Ǿ,-"/1&+$3,)1$"Ǿ
#/".2"+ 6Ǿ+!0"/&)+2*"/ǽ
4B3-17-SIL-120
~120V 60Hz 1000W
Serial No: 4B3-000000
Date: 1530 REV: 1234

10
3B3Specifications
Power Output
Per Channel
ǝ˄,!ǿ 200W
Gain &$%ǿǗǞ!
,4ǿǗǘ!
ǗǝǽǗǝȡ
ǖǙǽǖǙȡ
Sensitivity
ț&+1,ǝ˄Ȝ
&$%ǿǖǽǕ
&$%ǿǖǽǙ
,4ǿǗǽǕ
,4ǿǗǽǝ
100W
200W
100W
200W
Input
Impedance
+!&3&!2),!"
&+$)"+!"!
)+ "!ʭ
)+ "!Ȓ
/&!$"!,!"
&+$)"+!"!
)+ "!ʭ
)+ "!Ȓ
ʻǛǕ(˄
ʻǛǕ(˄
ʻǖǗǽǚ(˄
ʻǖǕ(˄
ʻǖǕ(˄
ʻǖǕ(˄
IMD ʵǕǽǕǕǚʢǾ6-ǽʵǕǽǕǕǗʢ
THD+N ǗǕ7ȒǗǕ(7ȯǗǕǕǾǝ˄ ʵǕǽǕǕǚʢ
Noise (input
shorted, 20Hz-
ǗǕ(7Ȝ
&$%ǿǗǞ!
,4ǿǗǘ!
ʳȒǖǖǕ!țȒǜǚ!2Ȝ
ʳȒǖǖǘ!țȒǜǝ!2Ȝ
Slew Rate ʴǛǕȡʿ
Bandwidth ʳǖ71,ʴǖǕǕ(7
Damping ǗǕ7Ǿǝ˄ >500
Weight ,2+!0ǿ
&),$/*0ǿ
42
ǖǞǽǖ
Power
Consumption
ț110Ȝ
1+!6ǿ
!)"ǿ
Ǘ%ǽǗǚǝ˄ǿ
Ǘ%ǽǗǕǕǝ˄ǿ
/&!$"!ǿǛǕǕǝ˄ǿ
ʳǕǽǚ
ʵǛǕ
440
700
1300
Heat Load
țȡ,2/Ȝ
!)"ǿ
Ǘ%ǽǗǕǕǝ˄ǿ
/&!$"!ǿǛǕǕǝ˄ǿ
380
1530
2500
4B3Specifications
Power Output
Per Channel
ǝ˄,!ǿ 300W
Gain &$%ǿǗǞ!
,4ǿǗǘ!
ǗǝǽǗǝȡ
ǖǙǽǖǙȡ
Sensitivity
ț&+1,ǝ˄Ȝ
&$%ǿǖǽǕ
&$%ǿǖǽǜ
,4ǿǗǽǕ
,4ǿǘǽǚ
100W
300W
100W
300W
Input
Impedance
+!&3&!2),!"
&+$)"+!"!
)+ "!ʭ
)+ "!Ȓ
/&!$"!,!"
&+$)"+!"!
)+ "!ʭ
)+ "!Ȓ
ʻǛǕ(˄
ʻǛǕ(˄
ʻǖǗǽǚ(˄
ʻǖǕ(˄
ʻǖǕ(˄
ʻǖǕ(˄
IMD ʵǕǽǕǕǚʢǾ6-ǽʵǕǽǕǕǗʢ
THD+N ǗǕ7ȒǗǕ(7ȯǘǕǕǾǝ˄ ʵǕǽǕǕǚʢ
Noise (input
shorted, 20Hz-
ǗǕ(7Ȝ
&$%ǿǗǞ!
,4ǿǗǘ!
ʳȒǖǖǕ!țȒǜǚ!2Ȝ
ʳȒǖǖǘ!țȒǜǝ!2Ȝ
Slew Rate ʴǛǕȡʿ
Bandwidth ʳǖ71,ʴǖǕǕ(7
Damping ǗǕ7Ǿǝ˄ >500
Weight ,2+!0ǿ
&),$/*0ǿ
63
ǗǝǽǛ
Power
Consumption
ț110Ȝ
1+!6ǿ
!)"ǿ
Ǘ%ǽǘǚǝ˄ǿ
Ǘ%ǽǘǕǕǝ˄ǿ
/&!$"!ǿǞǕǕǝ˄ǿ
ʳǕǽǚ
ʵǜǕ
550
1000
1700
Heat Load
țȡ,2/Ȝ
!)"ǿ
Ǘ%ǽǘǕǕǝ˄ǿ
/&!$"!ǿǞǕǕǝ˄ǿ
580
2320
3750

4B3&3B3*-)&Ɯ"/0
11
Dimensions
&+&*2*/" ,**"+!"!
)"/+ "#,/%"1!&00&-1&,+

/601,+&*&1"!ȢǛǜǜ")/&3"Ȣ"1"/,/,2$%Ǿ+1/&,ǞǛǜ
+!Ȣ%,+"ǿǜǕǚȒǜǙǗȒǚǘǗǚȢ444ǽ/601,+ǽ ,*
300043 2016-01-19