crt2612 gm-x952 bridgeable power amplifierdiagramasde.com/diagramas/audio/gm-x952 bridgeable power...

PIONEER CORPORATION 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan PIONEER ELECTRONICS SERVICE INC. P.O.Box 1760, Long Beach, CA 90801-1760 U.S.A.PIONEER EUROPE NV Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium PIONEER ELECTRONICS ASIACENTRE PTE.LTD. 253 Alexandra Road, #04-01, Singapore 159936

C PIONEER CORPORATION 2000 K-ZZS. NOV. 2000 Printed in Japan

ORDER NO.

CRT2612

BRIDGEABLE POWER AMPLIFIER

GM-X952 X1R/UC,EW,ES

ServiceManual

CONTENTS

1. SAFETY INFORMATION............................................2

2. EXPLODED VIEWS AND PARTS LIST ......................2

3. SCHEMATIC DIAGRAM.............................................6

4. PCB CONNECTION DIAGRAM................................12

5. ELECTRICAL PARTS LIST........................................14

6. ADJUSTMENT.........................................................16

7. GENERAL INFORMATION.......................................17

7.1 DISASSEMBLY ..................................................17

8. OPERATIONS AND SPECIFICATIONS....................18

GM-X952/X1R/EW

2

GM-X952

2. EXPLODED VIEWS AND PARTS LIST

2.1 PACKING

1. SAFETY INFORMATION

- GM-X952/X1R/UC

CAUTION

This service manual is intended for qualified service technicians; it is not meant for the casual do-it-yourselfer.Qualified technicians have the necessary test equipment and tools, and have been trained to properly and safely repaircomplex products such as those covered by this manual.Improperly performed repairs can adversely affect the safety and reliability of the product and may void the warranty.If you are not qualified to perform the repair of this product properly and safely; you should not risk trying to do soand refer the repair to a qualified service technician.

WARNING

This product contains lead in solder and certain electrical parts contain chemicals which are known to the state ofCalifornia to cause cancer, birth defects or other reproductive harm. Health & Safety Code Section 25249.6 - Proposition 65

3

GM-X952

NOTE:

- Parts marked by “*” are generally unavailable because they are not in our Master Spare Parts List.

- Screws adjacent to ∇ mark on the product are used for disassembly.

- Owner's ManualModel Part No. Language

GM-X952/X1R/UC HRD0169 English, FrenchGM-X952/X1R/EW HRD0156 English, Spanish, German,

French, Italian, DutchGM-X952/X1R/ES HRD0170 English, Spanish

HRD0171 Portuguese(B), Arabic

- PACKING SECTION PARTS LISTPart No.

Mark No. Description GM-X952/X1R/UC GM-X952/X1R/EW GM-X952/X1R/ES* 1-1 Warranty Card Not used HRY1157 Not used

1-2 Owner’s Manual HRD0169 HRD0156 HRD01701-3 Owner’s Manual Not used Not used HRD0171

* 1-4 Card ARY1048 Not used Not used2 Screw BYC40P180FZK BYC40P180FZK BYC40P180FZK

3 Polyethylene Bag HEG0011 HEG0011 HEG00114 Polyethylene Bag HEG0022 HEG0022 HEG00225 Carton HHG0277 HHG0277 HHG02776 Contain Box HHL0277 HHL0277 HHL02777 Protector HHP0107 HHP0107 HHP0107

9 Cover HNS0101 HNS0101 HNS0101

4

GM-X952

2.2 EXTERIOR

A

5

GM-X952

(1) EXTERIOR SECTION PARTS LIST

Mark No. Description Part No. Mark No. Description Part No.1 Screw PPZ30P100FZK2 Screw BBZ30P050FMC3 Screw BBZ30P060FMC4 Screw BBZ30P080FMC5 Screw BSZ30P050FZK

6 Screw(M3x12) CBA13237 Screw(M3x5) HBA00068 Screw(M3x8) HBA00119 Panel See Contrast table(2)

10 Panel See Contrast table(2)

11 Case HNB013512 Holder HNC008013 Heat Sink See Contrast table(2)14 Cover HNS010115 Spacer HNV0016

16 Amp Unit See Contrast table(2)17 Terminal(CN850) CKF105918 Fuse(25A) HEK002519 Pin Jack(CN851) HKB000220 Terminal(CN853) HKE0020

21 Terminal(CN854) HKE002122 Terminal(CN855) HKE002123 Buss Bar HNC004324 Holder HNC008225 Screw PPZ30P100SAD

26 Light Pipe Unit HXA0322

(2) CONTRAST TABLE

GM-X952/X1R/UC, EW and ES are constructed the same except for the following:Part No.

Mark No. Description GM-X952/X1R/UC GM-X952/X1R/EW GM-X952/X1R/ES9 Panel HNB0129 HNB0144 HNB0129

10 Panel HNB0130 HNB0140 HNB013013 Heat Sink HNR0181 HNR0187 HNR018116 Amp Unit HWH0139 HWH0138 HWH0140

INPUT

(-35V)

(+35V)

±15VREGULATOR

±35VREGULATOR

MUTE

PWMCONTROLLER

BFC

LPF SELECT

AMP UNIT

ISOLATORGAIN = 1

LP FILTER80Hz - 12dB/OCT

(EW,ES model)

A

DC/DC CONVERTER

6

GM-X952

A

1 2 3 4

B

C

D

1 2 3 4

A-a A-b

A-aA-a A-b A-b

A-b A-b A-a A-a

Large sizeSCH diagram

Guide page

Detailed page

3. SCHEMATIC DIAGRAM

3.1 AMP UNIT(GUIDE PAGE)

Note: When ordering service parts, be sure to refer to “EXPLODED VIEWS AND PARTS LIST” or “ELECTRICAL PARTS

LIST”.

A-a

A

POWER AMP

POWER CONTROL /

MUTE

OVER CURRENTDETECTOR

AMP GAIN = 9 - 34dB

7

GM-X9525 6 7 8

A

B

C

D

5 6 7 8

A-b

A

8

GM-X952

A

1 2 3 4

B

C

D

1 2 3 4

INP

UT

LPF

SE

LEC

T

AM

P U

NIT

ISO

LAT

OR

GA

IN =

1

LP F

ILT

ER

80H

z -

12d

B/O

CT

A

A-a

A-b

A-a

9

GM-X9525 6 7 8

A

B

C

D

5 6 7 8

(-35

V)

(+35

V)

±15V

RE

GU

LAT

OR

±35V

RE

GU

LAT

OR

MU

TE

PW

MC

ON

TR

OLL

ER

BFC

(EW

,ES

mo

del

)

DC

/DC

CO

NV

ER

TE

R

A-a

A-b

2 31

A-a

10

GM-X952

A

1 2 3 4

B

C

D

1 2 3 4

PO

WE

R A

MP

OV

ER

C

UR

RE

NT

DE

TE

CT

OR

AM

P G

AIN

= 9

- 3

4dB

A-a

A-b

A-b

11

GM-X9525 6 7 8

A

B

C

D

5 6 7 8

PO

WE

R

CO

NT

RO

L /

MU

TE

A-a

A-b

2 31

A-b

12

GM-X952

A

1 2 3 4

B

C

D

1 2 3 4

AMP UNIT

4. PCB CONNECTION DIAGRAM

4.1 AMP UNIT

NOTE FOR PCB DIAGRAMS

1. The parts mounted on this PCB

include all necessary parts for

several destination.

For further information for

respective destinations, be sure

to check with the schematic

diagram.

2. Viewpoint of PCB diagrams

CapacitorConnector

P.C.Board Chip Part

SIDE A

SIDE B

A

L R

INPUT

LPF SELECT

GAIN

A

13

GM-X9525 6 7 8

A

B

C

D

5 6 7 8

SPEAKEROUTPUT

SPEAKEROUTPUT

BFC

FUSE

POWER

A

14

GM-X952

Q 903 Transistor 2SB1277Q 904 Transistor 2SB1277Q 905 FET STP55NE06FPQ 906 FET STP55NE06FPQ 907 Transistor 2SD1864

Q 908 Transistor 2SB1243Q 909 Transistor 2SD1919Q 910 Transistor 2SD1919Q 911 FET STP55NE06FPQ 912 FET STP55NE06FP

Q 913 FET STP55NE06FPQ 914 FET STP55NE06FPD 553 Diode 1SS133D 554 Diode 1SS133D 555 Diode 1SS133

D 556 Diode 1SS133D 557 Diode 1SS133D 558 Diode 1SS133D 560 Diode 1SS133D 561 Diode 1SS133

D 562 Diode 1SS133D 563 Diode 1SS133D 601 LED BR4361FD 653 Diode 1SS133D 654 Diode HZS7L(B2)

D 658 Diode 1SS133D 659 Diode 1SS133D 661 Diode 1SS133D 662 Diode ERA15-02VHD 663 Diode ERA15-02VH

D 901 Diode RM4ZD 907 Diode FML22SD 908 Diode HZS16L(1)D 909 Diode HZS16L(1)D 910 Diode FML22R

L 851 Ferri-Inductor CTF1007L 852 Ferri-Inductor CTF1007T 901 Transformer HTT0006TH 901 Thermistor CCX1013TH 902 Thermistor CCX1013

TH 903 Thermistor CCX1035S 101 Switch(LPF SELECT) CSH1021S 901 Switch(BFC)(EW,ES model) HSH-156VR 453 Volume 10kΩ(A) CCS1241

Fuse 25A HEK0025

RESISTORS

R 123 RD1/4PU222JR 124 RD1/4PU222JR 203 RD1/4PU472JR 204 RD1/4PU472JR 465 RD1/4PU910J

5. ELECTRICAL PARTS LIST

NOTE:

- Parts whose parts numbers are omitted are subject to being not supplied.

- The part numbers shown below indicate chip components.

Chip Resistor

RS1/_S___J,RS1/__S___J

Chip Capacitor (except for CQS.....)

CKS....., CCS....., CSZS.....

Unit Number : HWH0139(GM-X952/X1R/UC): HWH0138(GM-X952/X1R/EW): HWH0140(GM-X952/X1R/ES)

Unit Name : Amp Unit

MISCELLANEOUS

IC 101 IC NJM4558LIC 651 IC PA2027AIC 851 IC NJM2068DIC 852 IC NJM2068DIC 901 IC UPC494C

Q 203 Transistor DTA124ESQ 204 Transistor 2SC2458Q 205 Transistor 2SC2458Q 551 Transistor 2SA992Q 552 Transistor 2SA992

Q 553 Transistor 2SA992Q 554 Transistor 2SA992Q 555 Transistor 2SC5168Q 556 Transistor 2SC5168Q 559 Transistor 2SC1845

Q 560 Transistor 2SC1845Q 561 Transistor 2SA992Q 562 Transistor 2SA992Q 563 Transistor 2SC1845Q 564 Transistor 2SC1845

Q 565 Transistor 2SC1845Q 566 Transistor 2SC1845Q 571 Transistor 2SD1768SQ 572 Transistor 2SD1768SQ 580 Transistor 2SA1358

Q 581 Transistor 2SC3421Q 582 Transistor 2SA1907Q 583 Transistor 2SC5099Q 584 Transistor 2SA1907Q 585 Transistor 2SC5099

Q 586 Transistor 2SC3421Q 587 Transistor 2SA1358Q 588 Transistor 2SC5099Q 589 Transistor 2SA1907Q 590 Transistor 2SC5099

Q 591 Transistor 2SA1907Q 653 Transistor 2SA1048Q 654 Transistor 2SC2458Q 655 Transistor 2SC2458Q 657 Transistor 2SA1048

Q 658 Transistor 2SC2458Q 659 Transistor 2SA1048Q 660 Transistor 2SB1243Q 661 Transistor 2SC2458Q 902 Transistor 2SA1048

=====Circuit Symbol and No.===Part Name Part No.--- ------ ------------------------------------------ -------------------------


A

15

GM-X952









R 598 RD1/4PU564JR 599 RD1/4PU473JR 600 RD1/4PU473JR 601 RS1/2PMF100JR 602 RS1/2PMF100J

R 603 0.22Ω CCN1013R 604 0.22Ω CCN1013R 605 0.22Ω CCN1013R 606 0.22Ω CCN1013R 607 0.22Ω CCN1013

R 608 0.22Ω CCN1013R 609 0.22Ω CCN1013R 610 0.22Ω CCN1013R 611 RD1/4PU563JR 612 RD1/4PU563J

R 613 RD1/4PU563JR 614 RD1/4PU563JR 615 0.22Ω CCN1013R 616 0.22Ω CCN1013R 617 0.22Ω CCN1013

R 618 0.22Ω CCN1013R 619 0.22Ω CCN1013R 620 0.22Ω CCN1013R 621 0.22Ω CCN1013R 622 0.22Ω CCN1013







R 852 RD1/4PU471JR 853 RD1/4PU223JR 854 RD1/4PU223JR 855 RN1/4PC1002DR 856 RN1/4PC1002D

R 857 RN1/4PC1002DR 858 RN1/4PC1002DR 861 RN1/4PC1002DR 862 RN1/4PC1002DR 882 RN1/4PC1002D

R 884 RN1/4PC1002DR 887 RD1/4PU103JR 888 RD1/4PU103JR 889 RD1/4PU103JR 890 RD1/4PU103J

R 902 RS1/2PMF220JR 907 RD1/4PU473JR 910 RD1/4PU153JR 911 RD1/4PU102JR 912 RD1/4PU272J


R 918 RS1/2PMF220JR 919 RS1/2PMF220JR 920 RD1/4PU472JR 921 RD1/4PU472JR 922 RD1/4PU472J

R 923 RD1/4PU472JR 924 RS1/2PMF121JR 925 RS1/2PMF121JR 926 (EW,ES model) RD1/4PU105JR 928 RS1/2PMF121J



16

GM-X952

R 929 RS1/2PMF121JR 932 RD1/4PU104JR 933 RS1/2PMF121JR 934 RS1/2PMF121JR 935 RD1/4PU202J

R 936 RD1/4PU223JR 937 RD1/4PU103JR 938 RD1/4PU272JR 939 RD1/4PU272JR 947 RS1/2PMF560J

R 948 RS1/2PMF560JR 949 RD1/4PU123JR 950 RD1/4PU101JR 951 RD1/4PU563JR 952 RS1/2PMF220J

CAPACITORS

C 551 CEAS100M16C 552 CEAS100M16C 553 CCCCH121J100C 554 CCCCH121J100C 555 CQMA471J50

C 556 CQMA471J50C 559 CEAS221M10C 560 CEAS221M10C 561 CCPUCH150J50C 562 CCPUCH150J50

C 563 CCCCH330J100C 564 CCCCH330J100C 565 CFTLA223J50C 566 CFTLA223J50C 567 CFTLA333J50

C 568 CFTLA333J50C 569 CQMA102J50C 570 CQMA102J50C 571 CCCCH100J100C 572 CCCCH100J100

C 573 CCCCH100J100C 574 CCCCH100J100C 651 220µF/10V CCH1036C 652 CFTLA103J50C 653 CEAS100M16

C 654 CEAS100M16C 655 CFTLA103J50C 656 CEAS470M16C 658 CEAS220M16C 659 CEAS471M16

C 661 CFTLA103J50C 662 CFTLA103J50C 671 CEAS101M16C 851 CKPUYB471K50C 852 CKPUYB471K50

C 853 CEAS100M16C 854 CEAS100M16C 859 CCPUSL470J50C 860 CCPUSL470J50C 868 CFTLA223J50

C 869 CCPUSL470J50C 870 CFTLA223J50C 871 CCPUSL470J50C 872 CFTLA274J50C 873 CFTLA274J50

C 876 CFTLA154J50C 877 CFTLA154J50C 902 CEAS221M10C 903 CEAS2R2M50C 904 CEAS101M16

C 905 CQMA472J50C 906 CQMA472J50C 907 3300µF/16V HCH0005C 908 2200µF/50V HCH0007C 909 2200µF/50V HCH0007

C 910 2200µF/50V HCH0007C 911 2200µF/50V HCH0007C 912 CEAS470M16C 913 CEAS470M16C 914 CQMA102J50

C 915 CQMA102J50C 916 CFTNA224J50C 920 CFTLA564J50C 932 CEAS470M16C 949 3300µF/16V HCH0005

C 950 CEAS470M16C 951 CEAS470M16C 952 CQMA102J50C 953 CQMA102J50C 954 CQMA102J50

C 955 CFTLA103J50C 956 CFTLA103J50



6. ADJUSTMENT

There is no information to be shown in this chapter.

GM-X952

17

7. GENERAL INFORMATION

7.1 DISASSEMBLY

Case

Fig.1

- Removing the Case and the Panel (Fig.1)

Remove the six screws.

Remove the two screws.

Remove the three screws and then remove

the Case.

Remove the six screws and then remove the

Panel.

Fig.2

Panel

- Removing the Amp Unit (Fig.2)

Remove the twenty screws.

Remove the screw.

Remove the twelve screws and then remove

the Amp Unit.

Amp Unit

18

GM-X952

8. OPERATIONS AND SPECIFICATIONS

8.1 OPERATIONS

- GM-X952/X1R/EW

19

GM-X952

Pow

er In

dica

tor

The

pow

er in

dica

tor

light

s w

hen

the

pow

er is

sw

itche

d on

.

BFC

(Bea

t Fre

quen

cy C

ontro

l) Sw

itch

If y

ou h

ear

a be

at w

hile

list

enin

g to

an

MW

/LW

bro

adca

st w

ith y

our

car

ster

eo,

chan

ge th

e B

FC s

witc

h us

ing

a sm

all

stan

dard

tip

scre

wdr

iver

.(G

M-X

952/

X1R

/EW

,ES)

LPF

(Low

-Pas

s Fi

lter)

Sel

ect S

witc

hSe

t the

LPF

sel

ect s

witc

h as

fol

low

s ac

cord

ing

to th

e ty

pe o

f sp

eake

r th

at is

con

nect

ed to

the

spea

ker

outp

ut c

onne

ctor

and

the

car

ster

eo s

yste

m:

LP

F S

elec

tA

udio

fre

quen

cy r

ange

Spea

ker

Rem

arks

Swit

chto

be

outp

utT

ype

LPF

(lef

t)V

ery

Low

Fre

quen

cy r

ange

Subw

oofe

rC

onne

ct a

sub

woo

fer.

OFF

(rig

ht)

Full

rang

eFu

ll ra

nge

Setti

ng th

e U

nit

Gai

n Co

ntro

lIf

the

soun

d le

vel i

s to

o lo

w, e

ven

whe

nth

e vo

lum

e of

the

car

ster

eo u

sed

alon

gw

ith th

is p

ower

am

plif

ier

is tu

rned

up,

turn

gai

n co

ntro

l on

the

fron

t of

the

pow

er a

mpl

ifie

r cl

ockw

ise.

If

the

soun

ddi

stor

ts w

hen

the

volu

me

is tu

rned

up,

turn

the

gain

con

trol

cou

nter

-clo

ckw

ise.

•W

hen

usin

g w

ith a

n R

CA

equ

ippe

d ca

rst

ereo

(st

anda

rd o

utpu

t of

500

mV

), s

et to

the

NO

RM

AL

pos

ition

. Whe

n us

ing

with

an R

CA

equ

ippe

d Pi

onee

r ca

r st

ereo

with

max

. out

put o

f 4

V o

r m

ore,

adj

ust l

evel

tom

atch

the

car

ster

eo o

utpu

t lev

el.

20

GM-X952

Connection DiagramFuse (30 A)

GrommetSpecial red battery wire [RD-223] (sold separately)After making all other connections at the amplifier,connect the battery wire terminal of the amplifier tothe positive (+) terminal of the battery.

Ground wire (black) [RD-223] (sold separately)Connect to metal body or chassis.

Fuse (25 A) × 2

Car stereo withRCA output jacks

External Output

Connecting wires with RCA pinplugs (sold separately).

RCA input jack

System remote control wire (sold separately)Connect the male terminal of this wire to the system remote controlterminal of the car stereo (SYSTEM REMOTE CONTROL). Thefemale terminal can be connected to the auto-antenna relay controlterminal. If the car stereo does not have a system remote controlterminal, connect the male terminal to the power terminal through theignition switch.

Speaker terminal

Fuse (30 A)

Front side

Back side

21

GM-X952

8.2 SPECIFICATIONS

- GM-X952/X1R/UCPower source .............................................................................................. 14.4 V DC (10.8 — 15.1 V allowable)Grounding system .......................................................................................................................... Negative typeCurrent consumption .................................................................................... 25.0 A (at continuous power, 4 Ω)Idle current ...................................................................................................................... 4 — 15 mA Average current drawn* ........................................................................................ 8.4 A (4 Ω for two channels)

............................................................................................................................ 14.5 A (4 Ω for one channel)Fuse ............................................................................................................................................................ 25 A x 2Dimensions .......................................................................................................... 279 (W) x 58 (H) x 324 (D) mm

.................................................................................................................. [11 (W) x 2-1/4 (H) x 12-3/4 (D) in]Weight ...................................................................................... 4.8 kg (10.6 lbs) (Leads for wiring not included)Maximum power output .................................................................................................... 200 W x 2 / 600 W x 1Continuous power output .......................................... 100 W x 2 (at 14.4 V, 4 Ω, 20 — 20,000 Hz, 0.08% THD)

.................................................................................. 300 W x 1 (at 14.4 V, 4 Ω, 20 — 20,000 Hz, 0.8% THD)

.................................................................................. 150 W x 2 (at 14.4 V, 2 Ω, 20 — 20,000 Hz, 0.8% THD)Load impedance ............................................................................................................ 4 Ω (2 — 8 Ω allowable)

........................................................................................................ (Bridge connection: 4 — 8 Ω allowable)Frequency response ............................................................................................ 10 — 50,000 Hz (+0 dB, –1 dB)Signal-to-noise ratio ...................................................................................................... 100 dB (IHF–A network)Distortion .............................................................................................................................. 0.008% (10 W, 1 kHz)Separation ........................................................................................................................................ 65 dB (1 kHz)Low pass filter ................................................................................................................ Cut off frequency: 80 Hz

.................................................................................................................................. Cut off slope: –12 dB/octMaximum input level/impedance ...................................................................... RCA: 6.5 V/22 kΩ (0.4 — 6.5 V)Note:• Specifications and the design are subject to possible modification without notice due to

improvements.*Average current drawn• The average current drawn is nearly the maximum current drawn by this unit when an audio signal is

input. Use this value when working out total current drawn by multiple power amplifiers.

- GM-X952/X1R/EWPower source .............................................................................................. 14.4 V DC (10.8 — 15.1 V allowable)Grounding system .......................................................................................................................... Negative typeCurrent consumption .................................................................................... 25.0 A (at continuous power, 4 Ω)Idle current ...................................................................................................................... 4 — 15 mA Average current drawn* ........................................................................................ 8.4 A (4 Ω for two channels)

............................................................................................................................ 14.5 A (4 Ω for one channel)Fuse ............................................................................................................................................................ 25 A x 2Dimensions .......................................................................................................... 279 (W) x 58 (H) x 324 (D) mmWeight ...................................................................................................... 4.8 kg (Leads for wiring not included)Maximum power output .................................................................................................... 200 W x 2 / 600 W x 1Continuous power output .......................................................... 150 W x 2 / 450 W x 1 (DIN45324, +B=14.4 V)Load impedance ............................................................................................................ 4 Ω (2 — 8 Ω allowable)

........................................................................................................ (Bridge connection: 4 — 8 Ω allowable)Frequency response ............................................................................................ 10 — 50,000 Hz (+0 dB, –1 dB)Signal-to-noise ratio ........................................................................................................ 100 dB (IEC-A network)Distortion ............................................................................................................................ 0.008 % (10 W, 1 kHz)Separation ........................................................................................................................................ 65 dB (1 kHz)Low pass filter ................................................................................................................ Cut off frequency: 80 Hz




GM-X952

- GM-X952/X1R/ESPower source .............................................................................................. 14.4 V DC (10.8 — 15.1 V allowable)Grounding system .......................................................................................................................... Negative typeCurrent consumption .................................................................................... 25.0 A (at continuous power, 4 Ω)Idle current ...................................................................................................................... 4 — 15 mA Average current drawn* ........................................................................................ 8.4 A (4 Ω for two channels)

............................................................................................................................ 14.5 A (4 Ω for one channel)Fuse ............................................................................................................................................................ 25 A x 2Dimensions .......................................................................................................... 279 (W) x 58 (H) x 324 (D) mmWeight ...................................................................................................... 4.8 kg (Leads for wiring not included)Maximum power output .................................................................................................... 200 W x 2 / 600 W x 1Continuous power output .......................................... 100 W x 2 (at 14.4 V, 4 Ω, 20 — 20,000 Hz, 0.08% THD)

.................................................................................. 300 W x 1 (at 14.4 V, 4 Ω, 20 — 20,000 Hz, 0.8% THD)

.................................................................................. 150 W x 2 (at 14.4 V, 2 Ω, 20 — 20,000 Hz, 0.8% THD)Load impedance ............................................................................................................ 4 Ω (2 — 8 Ω allowable)

........................................................................................................ (Bridge connection: 4 — 8 Ω allowable)Frequency response ............................................................................................ 10 — 50,000 Hz (+0 dB, –1 dB)Signal-to-noise ratio ........................................................................................................ 100 dB (IEC-A network)Distortion .............................................................................................................................. 0.008% (10 W, 1 kHz)Separation ........................................................................................................................................ 65 dB (1 kHz)Low pass filter ................................................................................................................ Cut off frequency: 80 Hz




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