Behringer UltraBass BX4500H User manual

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ULTRABASS BX4500H
Service Manual
Created: 14 March 2015
450-Watt Bass Amplifier Head with Ultrabass
Processor and Shape Filter
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
PCB Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Exploded Drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

ULTRABASS BX4500H
Specifications
- Extremely powerful 450-Watt bass amplifier head
- Dynamizer technology for ultimate punch and to capture every nuance of your playing
- Switchable Ultrabass subharmonics processor for unbelievable low-end power
- Revolutionary Shape filter for extreme sound range
- Dedicated 5-band EQ with Bright and Deep functions for awesome sound shaping
- Musical limiter for ultimate volume without distortion
- Vintage-style VU meter for precise signal level control
- Dual footswitch for Ultrabass and Shape functions included
- Balanced DI output for direct connection to your mixing console
- Dedicated Tuner Output/Effect Send and separate Line output for additional flexibility
- FX Insert for external effects devices (stomp boxes, rack effects, etc.)
- 3 speaker outputs on 1/4'' jack and professional speaker connectors (compatible with Neutrik
Speakon connectors)
- Active, temperature-controlled cooling system for ultimate protection
- High-quality components and exceptionally rugged construction ensure long life
- Conceived and designed by BEHRINGER Germany

PCB SchematicULTRABASS BX4500H
Page 3

PCB SchematicULTRABASS BX4500H
Page 4

PCB SchematicULTRABASS BX4500H
Page 5

PCB SchematicULTRABASS BX4500H
Page 6

Parts ListULTRABASS BX4500H
Page 7
Hi Pcb Assemblies
Quantity Unit S.Sku M.Sku Description Reference Designators Notes
1 1.0000 PC Q05-00001-02975 A05-00001-02975 PCB ASSEMBLY;LPA1450;BVT4500H BX4210A BX4410
BX4410A;PCB:01;AMP;REV:C;HAND INSERT;NO:926020
2 1.0000 PC Q05-00002-03839 A05-00002-03839 PCB ASSEMBLY;LPA1450;PCB:01;OUTPUT;REV:C;HAND
INSERT;NO:927020
3 1.0000 PC Q05-36201-04252 A05-36201-04252 PCB ASSEMBLY;BX4500H;PCB:01;MAIN;REV:J;HAND
INSERT;NO:705030
4 1.0000 PC A05-36202-04254 PCB ASSEMBLY;BX4500H;PCB:02;CONNECTOR;REV:J;HAND
INSERT;NO:706030
5 1.0000 PC A05-36203-04256 PCB ASSEMBLY;BX4500H;PCB:03;INPUT;REV:J;HAND
INSERT;NO:707030
Cable
Quantity Unit S.Sku M.Sku Description Reference Designators Notes
1 0.2620 M A74-00000-00706 WIRE;RAW FLAT
CABLE;UL2651;AWG:28;POLES;6;GRAY;PIN1:RED;PITCH:1mm27
2 1.0000 PC A74-90020-25706 CABLE;FLAT;P2mm54;LENGTH:250mm;ZEE;AWG:28;FC1/FD;+10/-
0mm;ZEE;POLES:06
[BX4500H:01: {1.0}(X11)]
3 0.0000 PC A81-05030-66742 WIRE HARNESS;LENGTH:50mm;AWG:26;P:2mm;SHS;HOUSING-
BOARD IN CONNECTOR;POLES:06;PIN1 RED/OTHERS BLK
4 1.0000 PC A81-05030-66842 WIRE HARNESS;LENGTH:50mm;AWG:26;P:2mm;SHS;ZEE;HOUSING-
BOARD IN CONNECTOR;POLES:06;PIN1 RED/OTHERS BLK
[BX4500H:02: {1.0}(X9)]
5 0.0000 PC A81-08030-46722 WIRE HARNESS;LENGTH:80mm;AWG:26;P:2mm;SHS;HOUSING-
BOARD IN CONNECTOR;POLES:4;PIN1 RED/OTHERS BLK
6 1.0000 PC A81-08030-46822 WIRE HARNESS;LENGTH:80mm;AWG:26;P:2mm;SHS;ZEE;HOUSING-
BOARD IN CONNECTOR;POLES:4;PIN1 RED/OTHERS BLK
7 0.0000 PC A81-09030-56732 WIRE HARNESS;LENGTH:90mm;AWG:26;P:2mm;HOUSING - BOARD
IN CONNECTOR 5 POLE;NO WIRE FOR PIN2;PIN1 RED/OTHERS BLK
8 1.0000 PC A81-09030-56832 WIRE
HARNESS;LENGTH:90mm;AWG:26;UL2468;P:2mm;ZEE;HOUSING -
BOARD IN CONNECTOR 5 POLE;NO WIRE FOR PIN2;PIN1
RED/OTHERS BLK
[BX4500H:03: {1.0}(X13)]
9 1.0000 PC Q89-50031-04316 A89-50031-04316 FOOTSWITCH
CABLE;FS112;LENGTH:5000mm;POLES:3;COLOR:BLK;SPEC.NO:04316
10 1.0000 PC Q76-15222-06417 A76-15222-06417 CABLE;AC-
CORD;W/POLYBAG;LENGTH:152cm;AWG:18;VERSION;UL;SPEC.NO:0
6417
(UL)
11 1.0000 PC Q76-15042-05624 A76-15042-05624 CABLE;AC-CORD;W/POLYBAG;LENGTH:150cm;H05VV-
F3G0.75MM2;VERSION;UK;SPEC.NO:05624
(UK)
12 1.0000 PC Q76-00000-05305 A76-00000-05305 CABLE;AC-CORD;3;BR;1500 MM;Plug + Connector:375+730;H05VV-F
3G0.75
(BR)
13 1.0000 PC Q76-15032-55649 A76-15032-55649 CABLE;AC-CORD;CLASS
II;W/POLYBAG;JAPAN;LENGTH:150cm;POLES:3;APPROVAL:PSE;JS15S
3 + VCTF 3x0.75mm2 + V1528
(JP, HM, SH)
14 0.0000 PC A76-18050-06505 CABLE;AC-CORD;LENGTH:180cm;VERSION:SAA;PLUG:HE105
ISOLATED;SAA H05VV-F 3x0.75mm2;CONN.HP-3;PANYU
(SAA)
15 1.0000 PC Q76-15212-03119 A76-15212-03119 CABLE;AC-CORD;W/POLYBAG;LENGTH:152cm;H05VV-F 3G
0.75MM2;VERSION;EU;SPEC.NO:03119
(EU, RU)
16 1.0000 PC Q76-15212-03119 A76-15212-03119 CABLE;AC-CORD;W/POLYBAG;LENGTH:152cm;H05VV-F 3G
0.75MM2;VERSION;EU;SPEC.NO:03119
17 1.0000 PC Q76-00000-13573 A76-00000-13573 CABLE;AC-CORD;3;AR;1500 MM;Plug + Connector:321+730;H05VV-F
3G0.75
(AR)
18 1.0000 PC Q76-18050-47490 A76-18050-47490 CABLE;AC-CORD;LENGTH:180cm;VERSION:SAA;PLUG:HE105
ISOLATED;SAA H05VV-F 3x0.75mm2;CONN.HP-3;SPEC.NO:47490
(SAA)

Parts ListULTRABASS BX4500H
Page 8
Capacitor
Quantity Unit S.Sku M.Sku Description Reference Designators Notes
1 1.0000 PC CAP E;100uF;10V;PITCH:2mm5;5mm x 11mm;VERTICAL 12.7-15-
9mm
[BX4500H:01: {1.0}(C7)] *NOT available in DP
2 10.0000 PC CAP E;10uF;25V;PITCH:2mm5;5mm x 11mm;VERTICAL 12.7-15-9mm [BX4500H:01: {3.0}(C8,C20-C21)] *NOT available in DP
3 2.0000 PC CAP E;47uF;25V;PITCH:2mm5;5mm x 11mm;VERTICAL 12.7-15-9mm [BX4500H:01: {2.0}(C18,C22)] *NOT available in DP
4 2.0000 PC CAP E;100uF;25V;PITCH:2mm5;6mm x 12mm;VERTICAL 12.7-15-
9mm
[P0362:01: {2.0}(C3,C25)] *NOT available in DP
5 3.0000 PC CAP E;1uF;50V;PITCH:2mm5;5mm x 11mm;VERTICAL 12.7-15-9mm [P0362:01: {3.0}(C16-C17,C19)] *NOT available in DP
6 2.0000 PC CAP E;2uF2;50V;PITCH:2mm5;5mm x 11mm;VERTICAL 12.7-15-9mm [BX4500H:01: {1.0}(C10)] *NOT available in DP
7 2.0000 PC CAP E;10uF;25V;PITCH:2mm5;5mm x 11mm;PRECUT:3mm2 -
0/+0mm2
[LPA1450:01: {2.0}(C14,C19)] *NOT available in DP
8 1.0000 PC CAP E;47uF;25V;PITCH:2mm5;5mm x 11mm;PRECUT:3mm2 -
0/+0mm2
[BX4500H:02: {1.0}(C15)] *NOT available in DP
9 1.0000 PC CAP E;100uF;25V;PITCH:2mm5;6mm3 x 12mm;PRECUT:3mm2 -
0/+0mm2
[LPA1450:01: {1.0}(C15)] *NOT available in DP
10 2.0000 PC CAP E;220uF;25V;PITCH:3mm5;8mm x 12mm;PRECUT:3mm2 -
0/+0mm2
[LPA1450:01: {2.0}(C20-C21)] *NOT available in DP
11 2.0000 PC CAP E;1mF;35V;PITCH:5mm;13mm x 21mm;PRECUT:3mm2 -
0/+0mm2
[LPA1450:01: {2.0}(C16-C17)] *NOT available in DP
12 1.0000 PC CAP E;47uF;50V;PITCH:2mm5;6mm x 11mm;PRECUT:3mm2 -
0/+0mm2
[LPA1450:01: {1.0}(C18)] *NOT available in DP
13 2.0000 PC CAP E;47uF;63V;PITCH:2mm5;6mm3 x 11mm;PRECUT:3mm2 -
0/+0mm2
[BX4500H:02: {2.0}(C14,C23)] *NOT available in DP
14 2.0000 PC CAP E;4mF7;100V;PITCH:10mm;30mm x 50mm;SNAP-IN [LPA1450:01: {2.0}(C2,C7)] *NOT available in DP
15 1.0000 PC CAP CER;56pF;50V;10%;SMT603 [LPA1450:01: {1.0}(C29)] *NOT available in DP
16 2.0000 PC CAP CER;180pF;50V;10%;SMT603 [LPA1450:01: {2.0}(C26,C28)] *NOT available in DP
17 1.0000 PC CAP CER;1nF;50V;10%;SMT603 [LPA1450:01: {1.0}(C23)] *NOT available in DP
18 1.0000 PC CAP CER;2nF2;50V;10%;SMT603 [LPA1450:01: {1.0}(C27)] *NOT available in DP
19 1.0000 PC CAP CER;10pF;50V;10%;SMT805 [BX4500H:03: {1.0}(C73)] *NOT available in DP
20 4.0000 PC CAP CER;47pF;50V;C0G;5%;SMD805 [BX4500H:01: {4.0}(C35,C47,C67,C70)] *NOT available in DP
21 13.0000 PC CAP CER;100pF;50V;10%;SMT805 [BX4500H:01: {9.0}(C28-
C29,C31,C39,C41,C43,C53,C66,C69)]
*NOT available in DP
22 4.0000 PC CAP CER;220pF;50V;10%;SMT805 [BX4500H:01: {4.0}(C46,C48-C49,C51)] *NOT available in DP
23 1.0000 PC CAP CER;470pF;50V;10%;SMT805 [BX4500H:01: {1.0}(C63)] *NOT available in DP
24 1.0000 PC CAP CER;3nF3;50V;10%;SMT805 [BX4500H:01: {1.0}(C38)] *NOT available in DP
25 1.0000 PC CAP CER;6nF8;50V;10%;SMT805;X7R [BX4500H:01: {1.0}(C37)] *NOT available in DP
26 2.0000 PC CAP CER;10nF;50V;10%;SMT805 [BX4500H:01: {2.0}(C60-C61)] *NOT available in DP
27 5.0000 PC CAP CER;15nF;50V;10%;SMT805 [BX4500H:01: {5.0}(C32-C33,C40,C64-C65)] *NOT available in DP
28 1.0000 PC CAP CER;22nF;50V;10%;SMT805 [BX4500H:01: {1.0}(C36)] *NOT available in DP
29 1.0000 PC CAP CER;56nF;50V;10%;SMT805 [BX4500H:01: {1.0}(C34)] *NOT available in DP
30 1.0000 PC CAP CER;68nF;50V;10%;SMT805;X7R [BX4500H:01: {1.0}(C52)] *NOT available in DP
31 13.0000 PC CAP CER;100nF;50V;X7R;10%;SMT805 [LPA1450:01: {2.0}(C30-C31)] *NOT available in DP
32 2.0000 PC CAP CER;150nF;50V;10%;SMT805 [LPA1450:01: {2.0}(C24-C25)] *NOT available in DP
33 3.0000 PC CAP CER;220nF;50V;10%;SMT805 [BX4500H:01: {3.0}(C27,C45,C50)] *NOT available in DP
34 1.0000 PC CAP MYL;22nF;50V;10%;PITCH:5mm;DIPPED;VERTICAL 12.7-15-9mm [P0362:01: {1.0}(C26)] *NOT available in DP
35 2.0000 PC CAP MYL;100nF;100V;10%;PITCH:8mm;DIPPED;PRECUT:3mm1 +/-
0mm5
[BX4500H:01: {2.0}(C2,C24)] *NOT available in DP
36 2.0000 PC CAP FILM;3nF3;63V;MPF;10%;PITCH:5mm;BOX;PRECUT:3mm1 +/-
0mm5
[LPA1450:01: {2.0}(C8-C9)] *NOT available in DP
37 2.0000 PC CAP FILM;22nF;63V;MPF;10%;PITCH:5mm;BOX;PRECUT:3mm1 +/-
0mm5
[LPA1450:01: {2.0}(C11,C22)] *NOT available in DP

Parts ListULTRABASS BX4500H
Page 9
Quantity Unit S.Sku M.Sku Description Reference Designators Notes
38 1.0000 PC CAP E;BIPOLAR;10uF;50V;20%;PITCH:2mm5;PRECUT:3mm2 -
0/+0mm2
[LPA1450:01: {1.0}(C12)] *NOT available in DP
39 1.0000 PC CAP E;4uF7;250V;PITCH:3mm5;8mm x 11mm5;PRECUT:3mm2 -
0/+0mm2
[LPA1450:01: {1.0}(C10)] *NOT available in DP
40 1.0000 PC CAP CER;56pF;200V;10%;PITCH:5mm;DISC;PRECUT:3mm1 +/-0mm5 [LPA1450:01: {1.0}(C13)] *NOT available in DP
41 1.0000 PC CAP FILM;68nF;250V;MPF;5%;PITCH:5mm;PRECUT:3mm1 +/-0mm5 [LPA1450:01: {1.0}(C1)] *NOT available in DP
42 4.0000 PC CAP FILM;47nF;250V;MPF;10%;PITCH:5mm;BOX;PRECUT:3mm1 +/-
0mm5
[LPA1450:01: {4.0}(C3-C6)] *NOT available in DP
Circuit Protector
Quantity Unit S.Sku M.Sku Description Reference Designators Notes
1 6.0000 PC R21-15201-52000 B21-15201-52000 FUSE CLIP;2 A;V;ZINC PLATING;250V;SERIES;520;FUSE;250 V;PLATING
2 2.0000 PC R22-01512-25001 B22-01512-25001 FUSE;250mA;250V;SLOW BLOW;H-TYPE;5mm x 20mm [LPA1450:01: {2.0}(F2-F3)]
3 1.0000 PC R22-01514-10001 B22-01514-10001 FUSE;10A;250V;SLOW BLOW;H-TYPE;5mm x 20mm [LPA1450:01: {1.0}(F1)] (EU, UK, SAA, AR, RU)
4 2.0000 PC R22-01514-10001 B22-01514-10001 FUSE;10A;250V;SLOW BLOW;H-TYPE;5mm x 20mm [LPA1450:01: {1.0}(F1)] (UL, JP, BR, HM, SH)
5 1.0000 PC R22-01516-30001 B22-01516-30001 FUSE;6A3;250V;SLOW BLOW;H-TYPE;5mm x 20mm (EU, UK, SAA, AR, RU)
6 1.0000 PC R22-01516-30001 B22-01516-30001 FUSE;6A3;250V;SLOW BLOW;H-TYPE;5mm x 20mm
Coil
Quantity Unit S.Sku M.Sku Description Reference Designators Notes
1 1.0000 PC B30-03002-23144 COIL;AIR RADIAL;3uH;PITCH:10mm;AWG13 [LPA1450:01: {1.0}(L1)]
Connector
Quantity Unit S.Sku M.Sku Description Reference Designators Notes
1 1.0000 PC R80-03440-44694 B80-14440-01101 CONNECTOR;SPEAKON;MALE;STRAIGHT;POLES:4;STYLE:NL4MDV;(C
HUN-SHENG HP-01-EP)
[LPA1450:01: {1.0}(X1)]
2 4.0000 PC R84-30060-06009 B84-30060-06009 JACKET;FOR 6mm35 AMP
CONNECTOR;PVC;STRAIGHT;DIAMETER:4mm
3 4.0000 PC B84-32050-05839 CRIMP CONNECTOR;AMP;RECEPTABLE;6mm3 x 7mm5;AWG 14-
18;WIRE MOUNT;STRAIGHT;250 SERIES
4 2.0000 PC R84-39000-03120 B84-39000-03120 CONNECTOR;AMP;PCB;PCB MOUNT;PITCH:5mm;WIDTH:6mm3 [LPA1450:01: {2.0}(X13-X14)]
5 1.0000 PC B84-42050-00155 CRIMP CONNECTOR;LUG;INNER DIA:4mm3;AWG 14-18;WIRE
MOUNT;STRAIGHT
6 1.0000 PC R95-01320-03303 B95-01320-03303 CONNECTOR;XLR;SOCKET;MALE;STRAIGHT;POLES:3 [BX4500H:02: {1.0}(X1)]
7 1.0000 PC R84-39000-33065 B84-39000-33065 CONNECTOR;AWG 14-16;CLOSED ENDED;W/ NYLON66
COVER;APPROVALS:UL-CSA
(EU, UL, UK, SAA, BR, AR, RU)
8 1.0000 PC R84-39000-33065 B84-39000-33065 CONNECTOR;AWG 14-16;CLOSED ENDED;W/ NYLON66
COVER;APPROVALS:UL-CSA

Parts ListULTRABASS BX4500H
Page 10
Diode
Quantity Unit S.Sku M.Sku Description Reference Designators Notes
1 4.0000 PC DIODE;6A2;TEMIC OR FC;BULK [LPA1450:01: {4.0}(D4-D7)] *NOT available in DP
2 13.0000 PC DIODE;1N4007;DO41 [LPA1450:01: {13.0}(D1-D3,D8-D9,D13,D19-D25)] *NOT available in DP
3 2.0000 PC DIODE;1N4934;DO41; (ONLY CHRYSTAL FIELD OR MCC) [LPA1450:01: {2.0}(D15-D16)] *NOT available in DP
4 1.0000 PC DIODE;1N5817;DO41 [P0362:01: {1.0}(D1)] *NOT available in DP
5 22.0000 PC DIODE;LL4148;LL34;TEMIC OR FC [LPA1450:01: {15.0}(D26-D40)] *NOT available in DP
6 2.0000 PC DIODE;ZPD05V6;DO35;TEMIC OR FC [LPA1450:01: {2.0}(D12,D14)] *NOT available in DP
7 4.0000 PC DIODE;ZPD15V0;DO35;TEMIC OR FC [LPA1450:01: {4.0}(D10-D11,D17-D18)] *NOT available in DP
8 1.0000 PC DIODE;ZD5V1;DO41 [P0362:01: {1.0}(D2)] *NOT available in DP