Alto MICRO Service Manual

MODEL: MICRO 3/3A/4/4A

Service

www.show-pa.com

Version 1.0

CONTENT

1. INTRODUCTION……………………………………………………1

2. TECHNICAL SPECIFICATION……………………………………2

3. BLOCK DIAGRAM & SCHEMATIC DIAGRAM…………………3

4. PCB LAYOUT ………………………………………………………9

5. TEST PROCEDURE………………………………………………11

6. EXPLODED VIEW & MECHANICAL PARTS LIST… …………13

7. BOM ………………………………… ……………………………...19

1. INTRODUCTION

- 1 -

This is a set of compact combination speakers. The MICRO series contain active
and passive models. MICRO 3A preamplifier is made with 2 JIM2068, one stereo
integrated circuit LM4766 in post circuit, signal RCA with left and right input and
the output power is 80/30 W. MICRO 4A preamplifier is made with 2 NJM2068,
one stereo integrated circuit LM4732 in post circuit, signal RCA with left and
right input and the output power is 50W. Light weight, compact dimension , easy
for installation. MICRO 3A/4A , the cabinet is made with PP rubber and 30%

exsiccator with black gravel paint on its surface. Use silk with YS-25 core ,4.2 Ω
for its treble, enjoying clear tweeter and strong woffer.

4. TECHNICAL SPECIFICATION

2. TECHNICAL SPECIFICATION

- 2 -

Model No.
System type
Power Handing
SPL (1W/1m)
Frequency Response
Impedance
Crossover Frequency
Dimension(HxWxD)
Net Weight (kg)

Model No.
System type
Power Handing
SPL (1W/1m)
Frequency Response
Impedance
Crossover Frequency
Dimension(HxWxD)
Net Weight (kg)

Model No.
System type
Power Handing: HF
Power Handing: LF
SPL (1W/1m)
AMP
Frequency Response
Impedance
Crossover Frequency
Dimension(HxWxD)
Net Weight (kg)

Model No.
System type
Power Handing: HF
Power Handing: LF
SPL (1W/1m)
AMP
Frequency Response
Impedance
Crossover Frequency
Dimension(HxWxD)
Net Weight (kg)

MICRO 3

2Way
AES30W
87 dB
50 Hz-13 kHz (-10 dB)
8 Ohms

2.3-3 kHz (1m/W)

216.5 x 143.5 x 152.5 mm

2.21 kg

MICRO 4

2Way
AES60W
92 dB
40Hz-15 kHz (-10dB)
4 Ohms

2.3-3 kHz (1m/W)

287.5x169 x 201mm

4.63 kg

MICRO 3A

2Way
AES15W
AES30W
87 dB
50 W +50 W (extra) continuous EIAJ
50 Hz-13 kHz (-10 dB)
8 Ohms

2.3-3 kHz (1m/W)

216.5 x 143.5 x 152.5 mm

3.51 kg

MICRO 4A

2Way
AES30W
AES60W
92 dB
100 W +100 W (extra) continuous EIAJ
40 Hz-15 kHz (-10 dB)
4 Ohms

2.3-3 kHz (1m/W)

287.5 x 169 x 201 mm

6.41 kg

4

D

- 3 -

3.BLOCK

OUTPUT

preamp1

preamp2

preamp1

preamp2

654321

C

B

A

VER070112

of1

Revision

Lv Ping Tang

MICRO 3A

1-Mar-2007 Sheet 1

Model No:

Size

MICRO 3A .SCH Drawn By:

A3

File:

Date:

MICRO 3A

Titel

4O

MICRO M3A BLOCK

VR104

VR104

4O

D101

R?

RES1

2

D1T

POWER

1

3

4

TRANS

SW

L INPUT

D

C

R INPUT

AC230V/50HZ

1 2 3 4 5 6

B

A

D

- 4 -

preamp1

preamp1

preamp2

preamp2

OUTPUT

654321

C

B

A

VER070112

of1

Lv Ping Tang

Revision

Drawn By:

MICRO 4ABLOCK

MICRO 4A

1-Mar-2007 Sheet 1

Model No:

MICRO 4A BLOCK

A3

File:

Date:

Titel

Size

4O

MICRO M4A BLOCK

VR104

VR104

4O

D101

R?

RES1

2

D1T

POWER

1

3

4

TRANS

SW

L INPUT

R INPUT

AC230V/50HZ

1 2 3 4 5 6

D

C

B

A

654321

SCHEMATIC DIAGRAM

- 5 -

MICRO 3-XOVER(1/1)

D

LOW BRIDGE+

T3

T10

GND

C

LOW BRIDGE+

T2

J1

OUTPUT

3c
4d
2b
1a

5e

L2

0.4MH

C1

6U/100V

14U/100V

R1

6O/10W

0.2MH

C2

T1

HI OUT+

L1

LOW SPEAKER

T9

GND

HI SPEAKER

T4

GND

MICRO 3-X-1版

OUTPUT

J1

3c
4d
2b
1a

5e

L2

0.6MH

C1

1.5U/100V
R1

6O/10W

LOW BRIDGE+

T3

LOW BRIDGE+

T2

C2

10U/100V

T1

HI OUT+

L1

0.35MH

T10

GND

LOW SPEAKER

T9

GND

MICRO 3-X-2版

HI SPEAKER

T4

GND

OUTPUT

LOW BRIDGE+

T3

T10

GND

LOW SPEAKER

T2

LOW BRIDGE+

J1

3c
4d
2b
1a

5e

R1

12O/10W

0.35MH

T1

HI OUT+

L1

T9

GND

MICRO 3-X-3 OK版確認

HI SPEAKER

T4

GND

D

C

B

A

1 2 3 4 5 6

Titel

Size

MICRO 3-XOVER

Model No:

A4

1-Mar-2007 Sheet

Date:

File:

HB02380 MICRO 3-XOVER .SCH原理圖

MICRO 3-XOVER

Drawn By:

Revision

VER061221

of1

1

Lv Ping Tang

B

A

D

- 6 -

C

B

A

J2

INPUT

D3

K

T9

V-

R23
68K 0.5W

C28

0.15u
C29

0.1u

1

AC1

AC2

3

C3

0.15u
C7

0.1u

BR2

V+

BU10-04

Vac

C6

0.1u/275V

-15V

+15V

C5
33P

U2A

NJM2068LD

C27

33P

U4A

4

CN2

1
2

PL

1

1

GND

T10

T1

Vac

10K

R19

-15V

2

3

2

3

C26

-15V

+15V

48

_
+

+15V

C1

10K

R25

48

_
+

NJM2068LD

4.7u/25V

Z10

1

A

2

B

3

C

4

D

5

E

1 2 3 4 5 6

IN4737

IN4737

IN4737

IN4737

A K

Z9

A K

4.7u/25V

Z14

Z13

C25

C4

R24

30K

R14

30K

10K

10K

10P

R8

10P

R26

2

C20

0.1U

C18

0.1U

C16

0.15u
C8

0.1u

C30

0.15u
C31

0.1u

+Vc

C24

4700u/50V

C23

4700u/50V

-Vc

R28

2.2K

R27
56K

IN4004

D2

K

IN4004

C22
220u/25V

C21
220u/25V

2.2K

6

5

R15
56K

6

5

AAK

AAK

Z12
IN4737

Z11
IN4737

R16

1K

R20

U2B

_

+

NJM2068LD

C32

33P

1K

R29

U4B

_

+

NJM2068LD

R22

820E 1W

R21
820E 1W

C17

33P

R61

10u/50V

-INB

+INB

11
10

9
8

MuteB

MuteA

18

17

5
4

+INA

-INA

C66

C65

10u/50V

R54

20K

20K

27

VCC

-VEE

LM4732

2

U3

VoB

GND

VoA

1000u/50V

+Vc

C68

1000u/50V

25

19

12

7

-Vc

C67

R58

2.7O/2W

C64

0.1U

C63

0.1U

R57

2.7O/2W

L2

0.5MH

C2

4U/100V

1O/10W

R60

1K

R13
15K

C70
68u/25V

-Vc

R55

1K

C69

+Vc

R59

1K

R56

1K

C62

0.1U

21

22

20

14

16

15

C61

0.1U

R52
15k

C58

4.7u/25V

C56
15P

R17

7

1K

VR2
A10K

3

1

C15

4.7u/25V

2

C10
102

C9
101

R43
15K

R51
15K

C59

100u/35V

C57

4.7u/25V

C55
15P

C60

100u/35V

68u/25V CB00349

1,3腳信號輸入腳
5腳地

R30

7

1K

VR2
A10K

3

1

C33

4.7u/25V

2

C34
102

C35
101

2,4 .腳空腳

Titel

Size

MICRO 4A

Model No:

A4

1-Mar-2007 Sheet 1

Date:

MICRO 4A VER061210.SCH

File:

MICRO 4A

R1

Drawn By:

654321

MICRO 4A(1/1)

LOW BRIDGE+

T16

T13

GND

LOW BRIDGE+

T15

10U/100V

HI OUT+

L1

0.2MH

1
2
3
4
5

C11

T14

OUTPUT

Revision

T12

GND

GND

J3

A
B
C
D
E

VER070127

of1

Lv Ping Tang

LOW SPEAKER

HI SPEAKER

T11

D

C

B

A

654321

- 7 -

C45
10u/35V

R41

2.7O/2w

C41

0.1U/100V

C44

0.1U/100V

Drawn By:

MICRO 3A(1/1)

C46

0.1U/100V

SPO+

1

SPO-

1

J3

1

A

2

B

3

C

4

D

5

E

OUTPUT

1,3腳信號輸入腳
5腳地
2,4 .腳空腳

VER070127
of1

Lv Ping Tang

D

C

B

A

+Vc

D3

K

T9

V-

R23
68K 0.5W

C52

0.15u
C54

0.1u

1

AC1

AC2

3

C3

0.15u
C7

0.1u

BR2

V+

BU10-04

D

C

4.7u/25V

Z10

IN4737

IN4737

IN4737

Z9

IN4737

4.7u/25V

Z14

Z13

J2

B

INPUT

A

1

A

2

B

3

C

4

D

5

E

C49

C4

R14

15K

R34

15K

10K

10K

10P

R44

R8

10P

Vac

2

3

GND

T10

T1

Vac

2

3

C51

C5
33P

10K

R19

-15V

48

_

U2A

+

+15V

C1

C50
33P

10K

R35

-15V

48

_

U3A

+

NJM2068LD

+15V

C6

4

0.1u/275V

-15V

CN2

1
2

PL

+15V

NJM2068LD

1

1

2

C20

0.1U

C18

0.1U

C16

0.15u
C8

0.1u

C53

0.15u
C55

0.1u

+Vc

C24

4700u/50V

C23

4700u/50V

-Vc

2.2K

R38
56K

IN4004

D2

K

IN4004

C22
220u/25V

C21
220u/25V

2.2K

6

5

R15
56K

R37

6

5

AAK

AAK

Z12
IN4737

Z11
IN4737

R16

1K

R20

_

U2B

+

NJM2068LD

C56

33P

1K

R39

_

U3B

+

NJM2068LD

C17

33P

R22
820E 1W

R21
820E 1W

7

7

R40

1K

R17

1K

VR2
A10K

VR2
A10K

3

1

3

1

C15

4.7u/25V

C57

4.7u/25V

2

8

7

R27

47K 15K可改為

R30
1K

C34

4.7u/25V

C10
102

2

C9
101

C58
102

C59
101

R33
47k 15K可改為

C33

4.7u/25V

C35

470u/35V

C36

470u/35V

R29

1K

C47
10u/35V

13

U4B

LM4766

12

R32

1K

R31
1K

2

+IN A

Vcc A

-IN A

Vee

4

C48

0.1U/100V

R37

20K

C38 CB00027
22U/25V

C37 CB00027
22U/25V

+IN B

-IN B

+Vc

Vee

4

Titel

6

15

Size

A4

Date:

File:

1 2 3 4 5 6

C43
470u/35V

LM4766

C42
100u/35V

OUT B

GND B

10

3

U4A

-Vc

1

R42

2.7O/2w

OUT A

Mute A

5

Vcc B

Mute B

11

R36
20K

GND A

MICRO 3A

File:

1-Mar-2007 Sheet 1

MICRO 3A VER061210.SCH

MICRO 3A

- 8 -

4. PCB PLAYOUT

- 9 -

- 10 -

HK08294

5.TEST PROCEDURE

- 11 -

MICRO 3A_230V

MICRO 3A(ALTO) TEST REPORT

TERM RCA/L output 26Wload8ΩRCA/Loutput 26 Wload8Ω RCA/Loutput 1Wload8Ω RCA/Loutput 26Wload8Ω RCA/Loutput 1 Wload8Ω±3dB

RESAULT 1.0dB± 0.8db 91dB↑ 0.05%↓ 1.2%↓ 110HZ↓~71KHZ↑

ITEM INPUT SENSITIVITY S/N INPUT DISTORTION FULL-POWER DISTORTION SIGNAL RESPONSE

1.0dB±0.8db 87dB↑ 0.05%↓ 1.2%↓ 110HZ↓~71KHZ↑

RCA/Routput 26Wload8Ω RCA/Routput 26 Wload8Ω RCA/Routput 1Wload8Ω RCA/Routput26Wload8Ω RCA/Routput 1Wload 8Ω±3dB

Ω±3dB setup set

- 12 -

3dB 2:oscillator*1PCS

RCA/Loutput 1 Wload4

load4Ω

HK08293

MICRO 4A(ALTO)TEST REPORT

MICRO 4A_230V

RCA/Loutput 38W

load4Ω

RCA/Loutput1W

load4Ω

RCA/Routput 1W 4Ω±

4Ω

RCA/Routput50Wload

load4Ω

RCA/Routput 1W

loadΩ

RCA/Loutput 38W

4Ω

RCA/Loutput 38Wload

ITEM SENSITIVITY S/N DISTORTION FULL DISTORTION SIGNAL RESPONSE REMARK

TERM

RCA/Routput 50 W

4Ω

1.7dB± 0.5dB 78dB↑ 0.3%↓ 2.3%↓ 115HZ↓~68KHZ↑ 3:4Ω100Wload*1PCS

RCA/Routput 50Wload

RESULT 2.8dB±0.5db 79dB↑ 0.5%↓ 2.1%↓ 170HZ↓~1.7KHZ↑ 1:ATS-1*1PCS

- 13 -

MODEL

6.EXPLODED VIEW

- 14 -

MODEL

- 15 -

MODEL

- 16 -

MODEL

No. Part No. Description Specification PCS

PARTS LIST

- 17 -

1 HB02380 PC-BOARTD MICRO 3-VOXER-VER061221 1

2 HB02385 PC-BOARTD MICRO 3A-VOXER-VER061221 1

3 HB02386 PC-BOARTD MICRO 4A-VOXER-VER061221 1
4 MA06683 PANEL MICRO 3A ALTO-V1.0 1

5 MA06618 PANEL MICRO 3 ALTO-V1.1 1
6 MA06684 PANEL MICRO 4A ALTO-V1.0 1
7 MA06619 PANEL MICRO 4 ALTO-V1.1 1
8 NI04682 FAN 40*ψ21*74mm BLACK 1

9 MI04104 HEAT SINK MICRO3A 5t*22*93*57-V1.0 1

10 MI04106 FIXED BRACKET MICRO4A 1.2t*41*88*101.4-V1.0 1

11 MI04108 HEAT SINK MICRO4A 5t*22*93*88-V1.0 1

12 CN00230 NETWORK CIRCUIT 0.6mmH 0.18Ω(ψ1.0mm R10930) 1

13 NI03190 FIXED BRACKET MICRO4A 2.5*ψ94.4*ψ122-V.1.0 2

14 NI03189 FIXED BRACKET MICRO3A 2.5*ψ94.4*ψ122-V.1.0 2

15 NI04813 SPEAKER CABINET MICRO3 131.5*152.5*211.5-V1.0 1

16 NI04814 SPEAKER CABINET MICRO4 157*201*285-V1.0 1
17 NE17407 BAR CODE LABEL MICRO 4A BAR CODE 3

18 NE17406 BAR CODE LABEL MICRO 4 BAR CODE 3
19 NE17405 BAR CODE LABEL MICRO 3A BAR CODE 3
20 NE17404 BAR CODE LABEL MICRO 3 BAR CODE 3
21 MI01789 FIXED BRACKET MICRO 3A 1
22 SD00358 INTEGRATED CIRCUIT LM4732TA(TO220)/(NS) 1

23 NI04818 SPEAKER CABINET MICRO3A 131.5*152.5*211.5-V1.0 1

24 NI04817 SPEAKER CABINET MICRO4A 157*201*285-V1.0 1

25 HA04980 TERMINAL WIRING 100/360mm UL1007 18AWG WHITE 1

26 HA04982 TERMINAL WIRING

27 HB05270 OUTER WOODEN BOX MICRO 3A ALTO-V1.0 1

130*2/360mm UL1007 18AWG RED AND
BLACK FLAT WIRE

1

No. Part No. Description Specification PCS

- 18 -

28 HB05269 OUTER WOODEN BOX MICRO 4A ALTO-V1.0 1
29 HA05003 TERMINAL WIRING 130mm UL1007 18AWG WHITE 1

30 HA05004 TERMINAL WIRING

31 HA05005 TERMINAL WIRING

32 SD00357 INTEGRATED CIRCUIT LM4766T(TO220)/(NS) 1
33 RA01789 CEMENT RESISTOR 12Ω SQP MODEL 1

360mm UL1007 18AWG RED AND BLACK
FLAT WIRE

360mm UL1007 18AWG WHITE AND
BLACK FLAT WIRE

1

1

Rank Part No. Description Specification QTY Remark

7.BOM

- 19 -

PC01036 STUDIO MONITOR MICRO 3A_ALTO_230V 1

├0001 HK08286 speaker

│　├0001 MH01731 magnet-RS φ60*φ32*8 Y30_V1.0 1
│　├0002 MH01733 copper drill φ2*2.5 2
│　├0003 HC00612 terminal-RS

│　├0004 HA02885 strand-RS

│　├0005 MI02917 bracket-RS

│　├0006 ND00727 spider-RS-ACT

│　├0007 HG00230 voice coil-RS-ACT

│　├0008 MH02161

│　├0009 NH00434 cone-RS-ACT φ73.5*φ21.2*16.5_V1.0 1

│　├0010 NH00523 dust-proof shade-RS φ36*2.6 YL:CP36B+FPP 1

T-shape middle pillar­RS-ACT

3 inch 20W 8Ω (MICRO
3A)

110#+110#

3.5*3.5mm_V1.0
ATA4*3YKA42W(12)*40
mm
φ77.8*φ25*21.5
P:34_V1.0
φ53.4*φ20.8*3.5

0.8/50g_V1.0
KSV 2L φ20.4*16.5*5.2

Ω 4.7mm _V1.0
φ55*φ19.95*12*4

P:31_V1.0

2

1

2

1

1

1

1

│　├0011 NH00435 caushion-RS-ACT φ76*φ71.5*3_V1.0 1
│　├0012 MH02163

│　├0013 MH02162 washer-RS-ACT φ65*φ22*4 P:34_V1.0 1

│　├0014 MH02164 magnet-RS-ACT φ50*φ22*8 Y25 _V1.0 1
│　└0015 NE17398 lable-RS HK08286_V1.0 1
├0002 HG00100 tweeter
├0003 MG00055 screw M4*8 3 USED IN TREBLE
├0004 NI03189 fixed board-RS-ACT

├0005 NI04818 trumpet box-RS

├0006 NI02621 fixed bracket M3;M4;M5_V1.2 1 UDED IN HIGH
├0007 ND00260 EV foam 1.5t*201.8*10 1 LABEL PANEL
├0008 ND00261 EV foam 1.5t*102.6*10 1 LABEL PANEL
├0009 ND00262 EV foam 1.5t*201.8*10 1 LABEL PANEL
├0010 ND00263 EV foam 1.5t*102.6*10 1 LABEL PANEL
├0011 SA00128 L.E.D φ3 circle blue 1

├0012 HA01950 header wiring-RS
├0013 NI00246 sleeve φ3*20mm 2

antimagnetic cover­RS-ACT

φ66*26*1.2 P:21 _V1.0 1

YS-25central DCR4.2Ω
20-40W

2.5*φ72*φ94.5
MICRO3_V1.1

MICRO3A

131.5*152.5*211.5_V1.0

2P 275mm UL1007
28AWG

1

UDED IN HIGH AND

2

LOW

1

1

Rank Part No. Description Specification QTY Remark

- 2 0 -

├0014 ND00116
├0015 NI00218 cable tie ALT-102SB 3

├0016 NE11750 label-RS ALTO PC_V1.2 3
├0017 NE17405 lable-RS MICRO 3A_V1.0 3
├0018 NF00061 assurance card-RS-C ALTO_V1.1 1

├0019 NB05270 carton-RS-CT MICRO 3A ALTO_V1.1 1
├0020 NB02508 cushion M3;M3A;M4;M4A 2

├0021 HJ00006 dessicant 30g 1
├0022 ND00289 EV foam 3t*φ34*φ27 black 1 USED IN TREBLE

├0023 HA05003 wire-RS

├0024 HA05004 wire-RS 320mm UL1007 18AWG 1

├0025 HA05005 wire-RS 320mm UL1007 18AWG 1

├0026 HA00861 power cord Europe 3P LT-312+LT-501 1
├0027 HK08294 faceplate MICRO 3A_230V 1

│　├0002 HI00019 power switch 4P MSR-8 1
│　├0003 HC00331 AC socket RF-2004 1 POWER CABLE

│　├0004 MI04106 fixed bracket-RS
│　├0005 NI00443 rubber coil φ20*φ60*2tB 2 TRANSFORMER PAD

│　├0006 MH00769 iron piecet-RS-ACT φ6*φ50*1.2_V1.4 1 TRANSFORMER
│　├0007 MG00141 color screw M5*50 1

│　├0008 ME00017 nut 5m/m 1

│　├0009 MF00039 washer φ5*φ8*1t 1
│　├0010 MG00042 screw M3*10 8 FIXED BRACKET

│　├0011 MF00077 washer 0.5t*φ3*φ6.5 4 USED IN IC
│　├0012 MG00389 screw M4*16*0.7PH 1 GROUND CABLE
│　├0013 MF00038 washer-RS φ4*φ7*1t 1 GROUND CABLE
│　├0014 MF00048 washer-RS φ4*φ8*0.5t 1 GROUND CABLE
│　├0015 ME00016 color nut 4m/m 1

absorb sound sponge­RS

100*510*25t 1

130mm UL1007 18AWG
white

MICRO4A

1.2t*41*88*101.4_V1.0

1

1 TRANSFORMER

TRANSFORMER
ACCESSORY
TRANSFORMER
ACCESSORY
TRANSFORMER
ACCESSORY

│　├0016 HA01272 signle terminal wiring 90mm UL1015 18AWG 1
│　├0017 MG00041 screw M3*6 4
│　├0018 HA03943 signle terminal wiring 120mm UL1015 18AWG 1
│　├0019 NI00218 cable tie ALT-102SB 3

│　├0020 NI00267 sleeve φ6*18mm 4
│　├0021 NI02048 sleeve-RS-ACT φ8*12mm 1
│　├0022 NI00400 knob φ12*15mm 1

│　├0023 HD00008 glass tube fuse

1A 250V φ5.2*20mm
CSA/S/UL/VDE

2

Rank Part No. Description Specification QTY Remark

- 21 -

│　├0024 MG00252 copper pole

│　├0025 HA04143 wire

│　├0026 HA04141 wire

│　├0027 HA03417 wire-RS 100mm UL1617 18AWG 1

│　├0028 HA03418 wire-RS 100mm UL1617 18AWG 1
│　├0029 NI04682 wind tube-RS 40*φ21*74mm black 1
│　├0030 HA04277 wire-RS
│　├0031 MG00061 screw-RS M3*10 1 LOCK RCA

│　├0032 MF00061 MIC jack φ9.6*φ13*0.5t 1
│　├0033 ME00060 MIC jack JY-6351G-02-250 1
│　├0034 HA01921 jump 7mm 1

│　├0035 HK08289 PC board P-MICRO 3A-AMP_DIP 1

│　│　├0002 HK08290 PC board P-MICRO 3A-AMP_SMD 1

M3*6.2*0.5PHsingle,lengt
h12
100mm UL1015 18AWG
brown
100mm UL1015 18AWG
blue

190mm UL1015 18AWG
red/black

1

CONNECT AC TO SW

1

TERMINAL
CONNECT AC TO SW

1

TERMINAL
CONNECT TO SW
TERMINAL
CONNECT TO SW
TERMINAL

1

│　│　├0003 HC00324 connect terminal 6.5m/m (PC250) 5
│　│　├0004 CF00035

│　│　├0005 CF00183

│　│　├0006 RA00061
│　│　├0007 CB00049 electrolytic capacitor 100uF/35V φ8*11mm 2

│　│　├0008 CB00234 electrolytic capacitor 10uF/50V φ6*7mm 2
│　│　├0009 RA01317
│　│　├0010 CB00148 electrolytic capacitor 220uF/35V φ8*11mm 2

│　│　├0011 CB00250 electrolytic capacitor 22uF/25V ψ6*7mm 2
│　│　├0012 CB00018 electrolytic capacitor 4.7uF/25V φ4*7mm 6

│　│　├0013 CB00128 electrolytic capacitor 2200uF/35V φ16*26mm 2

│　│　├0014 RC00371 potentiometer
│　│　├0015 HC00076 connector(male) 2P 2.5mm 180° 1

│　│　├0016 SA00007 bridge rectifier 8A KBU-806 comb type 1
│　│　├0017 MG00027 screw M3*12 1

│　│　├0018 MI04104 heat-sink-RS
│　│　├0019 NC00004 mica-RS 29*22*0.11mm 1

│　│　├0020 NI00863 plastic washer TO220B 1
│　│　├0021 SA00098 rectifier diode 1A/400V IN4004 2
│　│　├0022 HC00371 MIC jack SCJ-0658-1-Y 1

│　│　├0023 HC00506 RCA jack

metal-film capacitor
MPX
metal-film capacitor
MSC
metal-oxide-film
resistor 3W

metal-oxide-film
resistor 2W

0.1uF/275V 10% 1

0.1uF/100V 5% CASE01 2

820Ω RSS P type 2

2.7Ω 2

A10KΩ RV112B-40-25A­A10K

MICRO3A
5t*22*93*57_V1.1

SCP6933NS320000 2P red
white

1

1

1

Rank Part No. Description Specification QTY Remark

- 22 -

│　│　├0024 MF00037 washer φ3.2*φ5.5*1t 1
│　│　├0025 SA00107 zener diode 1W 15V 1N4744 6
│　│　├0026 SD00357 inetgrated circuit-RS LM4766T(TO220)/(NS) 1
│　│　├0027 AC00179 tin without lead-RS M705E Sn 3Ag-0.5Cu 2.844
│　│　└0028 CB00251 electrolytic capacitor 220UF/25V φ8*11mm 2
│　├0036 HK08288 PC board P-MICRO 3A_XOVER 1

│　│　├0001 HB02380 PCB-RS
│　│　├0002 NI00218 cable tie ALT-102SB 3
│　│　├0003 CN00230

│　│　├0004 CF00105

│　│　├0005 RA01789

│　│　├0006 CN00049 crossover inductance
│　│　├0007 HC00088 connector(male) 2P 3.9mm 180°(#3921) 1

│　│　├0008 AC00179 tin without lead-RS M705E Sn 3Ag-0.5Cu 0.45
│　│　└0009 HC00217 terminal for PCB PC187(0.8) 4
│　├0037 HI00120 slide switch L21-22A 1
│　├0038 NI03205 protective cover 0.5*44*15_V1.0 1
│　├0039 MG00643 screw M3*10_V1.0 2

│　└0040 TD00679 transformer-RS

├0028 NF02784 user manual-RS

├0029 NI04828

├0030 MG00383 screw M3*20 8
├0031 NA00863 PE bag-RS 0.04t*440*350 mm 1
├0032 ND00379 EV foam
└0033 MG00387 screw M3*20 4 FIXED PANEL

crossover inductance­RS
metal-film capacitor
MEF
chassis bracket-RS
10W

drop glue nameplate­RS-CT

MICRO 3­XOVER_VER070529

0.6mH0.18Ω 1

1.5uF/100V 10% 1

12Ω SQP type 1

0.35mH(0.8mmφ0.34-

0.36mH)

PT-MICRO
3A_115V/230V
MICOR series
ALTO_V1.1

MICRO 3A ALTO_V1.0 1

1.0 t*φ93.5*φ73mm
black_V1.0

1

1

1

1

UDED IN HIGH AND
LOW

UDED IN HIGH AND

4

LOW

Rank Part No. Description Specifivation QTY Remark

- 23 -

PC01038

├0001 HK08287 speaker

│　├0001 MH02289
│　├0002 MH02290 iron coil-RS φ87*φ27.2*5 P:45 1
│　├0003 MH00042 magnet-RS

│　├0004 MH00035 magnet-RS

STUDIO
MONITOR

T type middle
pillar-RS

MICRO
4A_ALTO_230V
4 inch 30W 8Ω
(MICRO 4A)
φ75*24.95*20*5
P:40.5

φ80*φ41.5*15 Y­35_V1.0
φ60*φ32*10 Y­35_V1.0

1

2

1

1

1

│　├0005 MI04153 bracket-RS

│　├0006 HC00671 terminal-RS

│　├0007 HG00289 voice coil-RS

│　├0008 ND00901 spider-RS

│　├0009 NH00522 cone-RS

│　├0010 NH00524

│　├0011 MH02291
│　├0012 MH01733 copper drill φ2*2.5 2
│　├0013 HA02885 strand-RS
│　├0014 NE17399 lable-RS HK08287_V1.0 1

│　└0015 MG00295 screw M4*6 4
├0002 HG00100 tweeter
├0003 MG00055 screw M4*8 3

├0004 MG00382 screw M4*20 8
├0005 NI03190

├0006 NI04817 trumpet box-RS
├0007 NI02621 fixed bracket M3;M4;M5_V1.2 1 HIGH

├0008 MG00393 screw M4*20 8 PANEL
├0009 HA04980 wire-RS

├0010 HA04982 wire-RS
├0011 ND00264 EV foam-RS 1.5t*272.6*10 _V1.1 1 LABEL PANEL

├0012 ND00265 EV foam-RS 1.5t*125.6*10 1 LABEL PANEL
├0013 ND00266 EV foam-RS 1.5t*272.6*10_V1.1 1 LABEL PANEL
├0014 ND00267 EV foam-RS 1.5t*125.6*10_V1.1 1 LABEL PANEL
├0015 SA00128 L.E.D φ3 circle blue 1

dust-proof shade-RSφ40*2.05 YL:CP40B±

antimagnetic
cover-RS

fixed board-RS­ACT

φ122*φ32.6*32.8
P:45 CH:3.5AL001-1

5.2#+2.8# 150°

3.5*3.5_V1.0
KSV 2L φ25.5*24*6.4
Ω*0.14
φ77*φ25.6*5.3

1.0/50gr LK:D-770D
φ100*φ26.4*21.5
YL:NU4"B/B+FPP

FPP
φ87.8*38.5*1.5 P31 1

ATA4*3YKA42W(12)*
40mm

YS-25central DCR4.2Ω
20-40W

2.5*φ94.4*φ122
MICRO4_V1.1
MICRO4A
157*201*285_V1.0

130/360mm UL1007
18AWG white
130*2/360mm UL1007
18AWG

1

1

1

1

1

1

2

1

2 LOW

1

1 CONNECT TO SPEAKER

1 CONNECT TO SPEAKER

Rank Part No. Description Specifivation QTY Remark

- 24 -

├0016 HA01950 header wiring-RS
├0017 NI00246 sleeve φ3*20mm 2
├0018 ND00117
├0019 NI00218 cable tie ALT-102SB 3

├0020 NE11750 label-RS ALTO PC_V1.2 3
├0021 NE17407 lable-RS MICRO 4A_V1.0 3

├0022 NF00061

├0023 NB05269 carton-RS
├0024 NB02508 cushion M3;M3A;M4;M4A 2

├0025 NA00864 PE bag-RS 0.04t*580*400 mm 1
├0026 HJ00006 dessicant 30g 1
├0027 ND00289 EV foam 3t*φ34*φ27 black 1 HIGH

├0028 ND00380 EV foam

├0029 HA00861
├0030 HK08293 faceplate MICRO 4A_230V 1
│　├0001 MA06684 panel-RS
│　├0002 HI00019 power switch 4P MSR-8 1 PANEL
│　├0003 TD00642 transformer-RS
│　├0004 HC00331 AC socket RF-2004 1 PANEL

absorb sound
sponge-RS

assurance card­RS-C

power cord
Europe 3P

2P 275mm UL1007
28AWG

170*800*25t 1

ALTO_V1.1 1
MICRO 4A

ALTO_V1.1

1.0 t*φ95.4*φ121mm
black_V1.0

LT-312+LT-501 1

MICRO 4A
ALTO_V1.2

PT-MICRO
4A_115/230V

1 SOLDER LED

1

4 LOW

1

1

│　├0005 MI04106 fixed bracket-RS

│　├0006 NI00442 rubber coil φ20*φ85*2tB 2 TRANSFORMER PAD
│　├0007 MH00774
│　├0008 MG00226 hexagon screw M6*55*1.0PH 1 LOCK TRANSFORMER

│　├0009 ME00014 color nut 6*1.0 1 LOCK TRANSFORMER
│　├0010 MF00040 washer φ6*φ10*1.5t 1 LOCK TRANSFORMER
│　├0011 MF00053 D-washer Φ6.3*Φ16*1t_V1.0 1 LOCK TRANSFORMER
│　├0012 MG00061 screw-RS M3*10 1 LOCK RCA
│　├0013 MG00041 screw M3*6 3 PC- BOARD
│　├0014 MF00077 washer 0.5t*φ3*φ6.5 3 PC- BOARD
│　├0015 ME00016 color nut 4m/m 1 GROUND CABLE
│　├0016 MG00389 screw M4*16*0.7PH 1 GROUND CABLE
│　├0017 MF00038 washer-RS φ4*φ7*1t 1 GROUND CABLE
│　├0018 MF00048 washer-RS φ4*φ8*0.5t 1 GROUND CABLE

│　├0019 HA04143 wire

│　├0020 HA04141 wire

│　├0021 HA03417 wire-RS

iron piecet-RS­ACT

MICRO4A

1.2t*41*88*101.4_V1.0

φ8*φ80*1.2_V1.3 1 TRANSFORMER

100mm UL1015
18AWG brown
100mm UL1015
18AWG blue
100mm UL1617
18AWG

1 TRANSFORMER

CONNECT AC TO SW

1

TERMINAL
CONNECT AC TO SW

1

TERMINAL
CONNECT TO SW

1

TERMINAL

Rank Part No. Description Specifivation QTY Remark

- 25 -

│　├0022 HA01272
│　├0023 MF00061 MIC jack φ9.6*φ13*0.5t 1 MIC CONNECTOR

│　├0024 ME00060 MIC jack JY-6351G-02-250 1 MIC CONNECTOR
│　├0025 NI00218 cable tie ALT-102SB 3
│　├0026 NI00267 sleeve φ6*18mm 5
│　├0027 NI02048 sleeve-RS-ACT φ8*12mm 1

signle terminal
wiring

90mm UL1015 18AWG 1

CONNECT TO AC
TERMINAL

│　├0028 HD00028 glass tube fuse

│　├0029 NI04682 wind tube-RS 40*φ21*74mm black 1 CONNECT TO PANEL
│　├0030 NI00400 knob φ12*15mm 1 CONNECT TO VR

│　├0031 HA01921 jump 7mm 1
│　├0032 HK08291 PC board

│　│　├0001 RA01317

│　│　├0002 CF00035

│　│　├0003 CN00049

│　│　├0004 CN00230

│　│　├0005 CB00234
│　│　├0006 SA00107 zener diode 1W 15V 1N4744 6
│　│　├0007 CB00184

│　│　├0008 CB00049

│　│　├0009 RA00893

metal-oxide-film
resistor 2W

metal-film
capacitor MPX
crossover
inductance
crossover
inductance-RS
electrolytic
capacitor

electrolytic
capacitor-RS
electrolytic
capacitor
chassis bracket
10W

2A 250V φ5.2*20mm
CSA/S/UL/VDE

P-MICRO 4A­AMP_DIP

2.7Ω 2

0.1uF/275V 10% 1

0.35mH(0.8mmφ0.34-

0.36mH)

0.6mH0.18Ω 1

10uF/50V φ6*7mm 2

10uF/100V NP φ
10*15mm

100uF/35V φ8*11mm 4

6Ω SQPtype 1

2 CONNECT TO AC

1

1

1

│　│　├0010 RA00061

│　│　├0011 CB00287

│　│　├0012 CF00183

│　│　├0013 CB00018

│　│　├0014 CB00148

│　│　├0015 CB00232

│　│　├0016 CF00107

metal-oxide-film
resistor 3W

electrolytic
capacitor
metal-film
capacitor MSC
electrolytic
capacitor
electrolytic
capacitor
electrolytic
capacitor
metal-film
capacitor MEF

820Ω RSS P type 2

1000uF/50V φ

12.5*26mm 5mm

0.1uF/100V 5%
CASE01

4.7uF/25V φ4*7mm 6

220uF/35V φ8*11mm 2
3300uF/50V φ

18*35mm PCB

2.2uF/100V 10% 1

2

2

2

Rank Part No. Description Specifivation QTY Remark

- 26 -

│　│　├0017 RC00371 potentiometer
│　│　├0018 HC00076 connector(male) 2P 2.5mm 180° 1
│　│　├0019 SA00007 bridge rectifier 8A KBU-806 comb type 1

│　│　├0020 HC00324 connect terminal 6.5m/m (PC250) 3

│　│　├0021 HC00217 terminal for PCB PC187(0.8) 3
│　│　├0022 SA00098 rectifier diode 1A/400V IN4004 2
│　│　├0023 HC00506 RCA jack
│　│　├0024 HC00371 MIC jack SCJ-0658-1-Y 1
│　│　├0025 MI04108 heat-sink-RS
│　│　├0026 MF00037 washer φ3.2*φ5.5*1t 2

│　│　├0027 MG00041 screw M3*6 2
│　│　├0028 HK08292 PC board

│　│　│　├0001 CI00144

│　│　│　├0002 CI00100

│　│　│　├0003 CI00016

│　│　│　├0004 CI00021

│　│　│　├0005 CI00001

│　│　│　├0006 CI00005

│　│　│　├0007 CI00009

│　│　│　├0008 RD00032

│　│　│　├0009 RD00034

│　│　│　├0010 RD00018

│　│　│　├0011 RD00023

│　│　│　├0012 RD00037

│　│　│　├0013 RD00046

│　│　│　├0014 SG00218

│　│　│　├0015 RD00047

SMD ceramic
capacitor 0805
SMD ceramic
capacitor 0805
SMD ceramic
capacitor 0805
SMD ceramic
capacitor 0805
SMD ceramic
capacitor 0805
SMD ceramic
capacitor 0805
SMD ceramic
capacitor 0805
SMD fixed
resistor 1/8W
SMD fixed
resistor 1/8W
SMD fixed
resistor 1/8W
SMD fixed
resistor 1/8W
SMD fixed
resistor 1/8W
SMD fixed
resistor 1/8W
SMD integrated
circuit-RS
SMD fixed
resistor 1/8W

A10KΩ RV112B-40­25A-A10K

SCP6933NS320000 2P
red white

MICRO4A
5t*22*93*88_V1.2

P-MICRO 4A­AMP_SMD

0.15uF/50V X7R ±10% 4

0.1uF/50V X7R ±10% 8

100PF/50V NPO 2

0.001uF/50V NPO ±5% 2

10PF/50V NPO 2

15PF/50V NPO 2

33PF/50V NPO 4

10KΩ ±5% 0805 4

15KΩ ±5% 0805 8

1.0KΩ ±5% 0805 6

2.2KΩ ±5% 0805 2

20KΩ ±5% 0805 2

56KΩ ±5% 0805 2

NJM2068MD/(JRC) 2

62KΩ ±5% 0805 1

1

1

1

1

Rank Part No. Description Specifivation QTY Remark

- 27 -

│　│　│　├0016 AE00449

solder material
without lead

9308/Sn Ag Cu 0.132

│　│　│　└0017 HB02386 PCB-RS

│　│　├0029 SD00358

│　│　├0030 AC00179

│　│　├0031 MI04107 fixed board-RS

│　│　└0032 NC02184 mica-RS
│　├0033 MG00042 screw M3*10 8 LOCK FICED BRACKET

│　├0034 HI00120 slide switch L21-22A 1
│　├0035 NI03205 protective cover 0.5*44*15_V1.0 1
│　└0036 MG00643 screw M3*10_V1.0 2

├0031 NF02784 user manual-RS

└0032 NI04827

inetgrated circuit-RSLM4732TA(TO220)/(N

tin without lead­RS

drop glue
nameplate-RS-CT

MICRO 4A­AMP(1*3)_VER070319

S)
M705E Sn 3Ag-0.5Cu 2.214

MICRO4A

0.8t*4.7*52.6*13_V1.0
MICRO 4A

52.6*19*0.1t

MICOR series
ALTO_V1.1

MICRO 4A
ALTO_V1.0

1

1

1

1

1

1

Rank Part No. Description Specification QTY Remark

- 28 -

PG02330 STUDIO MONITOR MICRO 3_ALTO 1

├0001 HK08286 speaker 3 inch 20W 8Ω (MICRO 3A) 2
│　├0001 MH01731 magnet-RS φ60*φ32*8 Y30_V1.0 1

│　├0002 MH01733 copper drill φ2*2.5 2
│　├0003 HC00612 terminal-RS 110#+110# 3.5*3.5mm_V1.0 1

│　├0004 HA02885 strand-RS ATA4*3YKA42W(12)*40mm 2

│　├0005 MI02917 bracket-RS φ77.8*φ25*21.5 P:34_V1.0 1

│　├0006 ND00727 spider-RS-ACT

│　├0007 HG00230 voice coil-RS-ACT

│　├0008 MH02161
│　├0009 NH00434 cone-RS-ACT φ73.5*φ21.2*16.5_V1.0 1
│　├0010 NH00523 dust-proof shade-RS φ36*2.6 YL:CP36B+FPP 1
│　├0011 NH00435 caushion-RS-ACT φ76*φ71.5*3_V1.0 1
│　├0012 MH02163
│　├0013 MH02162 washer-RS-ACT φ65*φ22*4 P:34_V1.0 1

│　├0014 MH02164 magnet-RS-ACT φ50*φ22*8 Y25 _V1.0 1
│　└0015 NE17398 lable-RS HK08286_V1.0 1

├0002 HG00100 tweeter
├0003 MG00055 screw M4*8 3

├0004 MG00383 screw M3*20 8
├0005 NI03189 fixed board-RS-ACT

├0006 NI05326 box-RS
├0007 NI02621 fixed bracket M3;M4;M5_V1.2 1 HIGH

├0008 MG00387 screw M3*20 4 PANEL
├0009 ND00260 EV foam 1.5t*201.8*10 1 LABEL PANEL
├0010 ND00261 EV foam 1.5t*102.6*10 1 LABEL PANEL
├0011 ND00262 EV foam 1.5t*201.8*10 1 LABEL PANEL
├0012 ND00263 EV foam 1.5t*102.6*10 1 LABEL PANEL

T-shape middle pillar­RS-ACT

antimagnetic cover-RS­ACT

φ53.4*φ20.8*3.5

0.8/50g_V1.0
KSV 2L φ20.4*16.5*5.2Ω

4.7mm _V1.0
φ55*φ19.95*12*4 P:31_V1.0 1

φ66*26*1.2 P:21 _V1.0 1

YS-25central DCR4.2Ω 20­40W

2.5*φ72*φ94.5
MICRO3_V1.1
MICRO3

131.5*152.5*211.5_V1.0

1

1

1

2 LOW

1

├0013 ND00116 absorb sound sponge-RS 100*510*25t 1
├0014 NI00218 cable tie ALT-102SB 3

├0015 NE11750 label-RS ALTO PC_V1.2 3
├0016 NE17404 lable-RS MICRO 3_V1.0 3

├0017 NF00061 assurance card-RS-C ALTO_V1.1 1
├0018 NB05270 carton-RS-CT MICRO 3A ALTO_V1.1 1

Rank Part No. Description Specification QTY Remark

- 29 -

├0019 NB02508 cushion M3;M3A;M4;M4A 2
├0020 HJ00006 dessicant 30g 1

├0021 HA05003 wire-RS 130mm UL1007 18AWG white 1

├0022 HA05004 wire-RS 320mm UL1007 18AWG 1

├0023 HA05005 wire-RS 320mm UL1007 18AWG 1
├0024 HA04642 wire-RS black-RS φ6.3-φ6.3*1.5M MONO 1

├0025 ND00289 EV foam 3t*φ34*φ27 black 1 HIGH
├0026 HK08190 faceplate MICRO 3_ALTO 1
│　├0002 MF00061 MIC jack φ9.6*φ13*0.5t 1
│　├0003 ME00060 MIC jack JY-6351G-02-250 1
│　├0004 NI04682 wind tube-RS 40*φ21*74mm black 1
│　├0005 MG00041 screw M3*6 4
│　├0006 MF00077 washer 0.5t*φ3*φ6.5 4
│　└0007 HK08188 PC board P-MICRO 3-XOVER 1

│　　　├0001 HB02380 PCB-RS

│　　　├0002 CN00230 crossover inductance-RS 0.6mH0.18Ω 1

MICRO 3­XOVER_VER070529

CONNECT TO 2
WOFFER
CONNECT TO
TWETTER
CONNECT TO
WOFFER

1

│　　　├0003 HC00371 MIC jack SCJ-0658-1-Y 1
│　　　├0004 CF00105

│　　　├0005 RA01789 chassis bracket-RS 10W 12Ω SQP type 1

│　　　├0006 CN00049 crossover inductance
│　　　├0007 NI00218 cable tie ALT-102SB 3
│　　　├0008 AC00179 tin without lead-RS M705E Sn 3Ag-0.5Cu 0.45
│　　　└0009 HC00217 terminal for PCB PC187(0.8) 4
├0027 NF02784 user manual-RS MICOR series ALTO_V1.1 1

├0028 NI04828
├0029 NA00863 PE bag-RS 0.04t*440*350 mm 1
└0030 ND00379 EV foam

metal-film capacitor
MEF

drop glue nameplate-RS­CT

1.5uF/100V 10% 1

0.35mH(0.8mmφ0.34-

0.36mH)

MICRO 3A ALTO_V1.0 1

1.0 t*φ93.5*φ73mm
black_V1.0

1

4 LOW

Rank Part No. Description Specification QTY Remark

- 30 -

PG02331 STUDIO MONITOR MICRO 4_ALTO 1
├0001 HK08287 speaker 4 inch 30W 8Ω (MICRO 4A) 2
│　├0001 MH02289 T type middle pillar-RS φ75*24.95*20*5 P:40.5 1
│　├0002 MH02290 iron coil-RS φ87*φ27.2*5 P:45 1
│　├0003 MH00042 magnet-RS φ80*φ41.5*15 Y-35_V1.0 1
│　├0004 MH00035 magnet-RS φ60*φ32*10 Y-35_V1.0 1

│　├0005 MI04153 bracket-RS
│　├0006 HC00671 terminal-RS 5.2#+2.8# 150° 3.5*3.5_V1.0 1
│　├0007 HG00289 voice coil-RS KSV 2L φ25.5*24*6.4Ω*0.14 1

φ122*φ32.6*32.8 P:45
CH:3.5AL001-1

1

│　├0008 ND00901 spider-RS

│　├0009 NH00522 cone-RS
│　├0010 NH00524 dust-proof shade-RS φ40*2.05 YL:CP40B±FPP 1

│　├0011 MH02291 antimagnetic cover-RS φ87.8*38.5*1.5 P31 1
│　├0012 MH01733 copper drill φ2*2.5 2
│　├0013 HA02885 strand-RS ATA4*3YKA42W(12)*40mm 2
│　├0014 NE17399 lable-RS HK08287_V1.0 1
│　└0015 MG00295 screw M4*6 4

├0002 HG00100 tweeter
├0003 MG00055 screw M4*8 3 HIGH

├0004 MG00382 screw M4*20 8 HIGH AND LOW
├0005 NI03190 fixed board-RS-ACT
├0006 NI04814 trumpet box-RS MICRO4 157*201*285_V1.0 1

├0007 NI02621 fixed bracket M3;M4;M5_V1.2 1 HIGH
├0008 MG00393 screw M4*20 8 PANEL
├0009 ND00264 EV foam-RS 1.5t*272.6*10 _V1.1 1 LABEL PANEL
├0010 ND00265 EV foam-RS 1.5t*125.6*10 1 LABEL PANEL
├0011 ND00266 EV foam-RS 1.5t*272.6*10_V1.1 1 LABEL PANEL
├0012 ND00267 EV foam-RS 1.5t*125.6*10_V1.1 1 LABEL PANEL
├0013 ND00117 absorb sound sponge-RS 170*800*25t 1
├0014 NI00218 cable tie ALT-102SB 3
├0015 NE11750 label-RS ALTO PC_V1.2 3
├0016 NE17406 lable-RS MICRO 4_V1.0 3
├0017 NF00061 assurance card-RS-C ALTO_V1.1 1
├0018 NB05269 carton-RS MICRO 4A ALTO_V1.1 1
├0019 NB02508 cushion M3;M3A;M4;M4A 2
├0020 NA00864 PE bag-RS 0.04t*580*400 mm 1
├0021 HJ00006 dessicant 30g 1

├0022 HA04980 wire-RS

φ77*φ25.6*5.3 1.0/50gr
LK:D-770D
φ100*φ26.4*21.5
YL:NU4"B/B+FPP

YS-25central DCR4.2Ω 20­40W

2.5*φ94.4*φ122
MICRO4_V1.1

130/360mm UL1007 18AWG
white

1

1

1

2 HIGH AND LOW

1

├0023 HA04982 wire-RS 130*2/360mm UL1007 18AWG 1
├0024 ND00289 EV foam 3t*φ34*φ27 black 1 HIGH

├0025 HA04642 wire-RS black-RS φ6.3-φ6.3*1.5M MONO 1

Rank Part No. Description Specification QTY Remark

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├0026 ND00380 EV foam
├0027 HK08191 faceplate MICRO 4_ALTO 1

│　├0001 MA06619 panel-RS MICRO 4 ALTO_V1.1 1
│　├0002 MF00061 MIC jack φ9.6*φ13*0.5t 1
│　├0003 ME00060 MIC jack JY-6351G-02-250 1
│　├0004 NI04682 wind tube-RS 40*φ21*74mm black 1
│　├0005 MG00041 screw M3*6 4
│　├0006 MF00077 washer 0.5t*φ3*φ6.5 4
│　└0007 HK08189 PC board P-MICRO 4-XOVER 1

│　　　├0001 HB02380 PCB-RS
│　　　├0002 CN00230 crossover inductance-RS 0.6mH0.18Ω 1
│　　　├0003 CF00107 metal-film capacitor MEF 2.2uF/100V 10% 1
│　　　├0004 RA00893 chassis bracket 10W 6Ω SQPtype 1
│　　　├0005 CN00049 crossover inductance 0.35mH(0.8mmφ0.34-0.36mH) 1
│　　　├0006 HC00371 MIC jack SCJ-0658-1-Y 1

│　　　├0007 CB00184 electrolytic capacitor-RS 10uF/100V NP φ10*15mm 1
│　　　└0008 HC00217 terminal for PCB PC187(0.8) 3
├0028 NF02784 user manual-RS MICOR series ALTO_V1.1 1

└0029 NI04827

drop glue nameplate-RS­CT

1.0 t*φ95.4*φ121mm
black_V1.0

MICRO 3­XOVER_VER070529

MICRO 4A ALTO_V1.0 1

4 LABEL 2 WOFFER

1