SR5400 / SR6400 / PS5400
Part no. 27AW855010
First Issue 2003.06
ecm
Please use this service manual with referring to the user guide ( D.F.U. ) without fail.
Service
Manual
SR5400
/
SR6400
TABLE OF CONTENTS
SECTION
PAGE
1. TECHNICAL SPECIFICATIONS ............................................................................ 1
2. TECHNICAL DESCRIPTION ................................................................................. 3
3. WIRING DIAGRAM................................................................................................ 5
4. BLOCK DIAGRAM ................................................................................................. 7
5. SCHEMATIC DIAGRAM ........................................................................................ 9
6. PARTS LOCATION .............................................................................................. 31
7. IC DATA................................................................................................................ 43
8. EXPLODED VIEW AND PARTS LIST ................................................................. 55
9. POWER AMPLIFIER ADJUSTMENT .................................................................. 59
10. SERVICE PROCEDURE ..................................................................................... 60
11. SYSTEM ERROR ................................................................................................ 60
12. ELECTRICAL PARTS LIST ................................................................................. 62
AV SURROUND RECEIVER SR6400
UP
SELECTOR
VOLUME
DOWN
MEMORY
TUNING
MODE
F/P
CLEAR
S-DIRECT
DISPLAY
MUTE
A/D
6.1CH INPUT
SPEAKERS A/B
POWER ON/OFF
PHONES
ENTER
STANDBY
AUX INPUT
S-VIDEO
VIDEO
L
AUDIO
R
DSS/VCR2
AUX
VCR1
DVD
TV
CD
CD-R
TAPE
TUNER
ATT
SELECT
DISP
AUTO
TUNED
ST
V OFF
NIGHT
PEAK
ANALOG
DIGITAL
ATT
SLEEP
SURR
AUTO
DIRECT
DISC 6.1
MT X 6.1
SPKR AB
EQ
DIGITAL
SURROUND
PCM
L
C
R
SL
S
SR
LFE
PS5400
AV Surround Receiver
SR5400 /K1G/N1B/U1B
/K1S/N1S/L1G
SR6400 /K1G/K1S/U1B
PS5400 /F1N
AV Surround Amplifier
REMARK :
1. Refer to service manual (part no. 27AW855020) for the parts list of model SR5400/L1G.
2. Refer to service manual (part no. 28AW855010) for the parts list of model SR6400/K1G/K1S/U1B.
MARANTZ DESIGN AND SERVICE
Using superior design and selected high grade components,
MARANTZ company has created the ultimate in stereo sound.
Only original
MARANTZ parts can insure that your MARANTZ product will continue to perform to the specifications for which
it is famous.
Parts for your
MARANTZ equipment are generally available to our National Marantz Subsidiary or Agent.
ORDERING PARTS :
Parts can be ordered either by mail or by Fax.. In both cases, the correct part number has to be specified.
The following information must be supplied to eliminate delays in processing your order :
1. Complete address
2. Complete part numbers and quantities required
3. Description of parts
4. Model number for which part is required
5. Way of shipment
6. Signature : any order form or Fax. must be signed, otherwise such part order will be considered as null and void.
SHOCK, FIRE HAZARD SERVICE TEST :
CAUTION : After servicing this appliance and prior to returning to customer, measure the resistance between either primary AC
cord connector pins ( with unit NOT connected to AC mains and its Power switch ON ), and the face or Front Panel of product and
controls and chassis bottom.
Any resistance measurement less than 1 Megohms should cause unit to be repaired or corrected before AC power is applied, and
verified before it is return to the user/customer.
Ref. UL Standard No. 1492.
In case of difficulties, do not hesitate to contact the Technical
Department at above mentioned address.
030307MIT
SUPERSCOPE TECHNOLOGIES, INC.
USA
MARANTZ AMERICA, INC
1100 MAPLEWOOD DRIVE
ITASCA, IL. 60143
USA
PHONE : 630 - 741 - 0300
FAX
: 630 - 741 - 0301
JAPAN Technical
MARANTZ JAPAN, INC.
35- 1, 7- CHOME, SAGAMIONO
SAGAMIHARA - SHI, KANAGAWA
JAPAN 228-8505
PHONE : +81 42 748 1013
FAX
: +81 42 741 9190
EUROPE / TRADING
MARANTZ EUROPE B.V.
P. O. BOX 8744, BUILDING SILVERPOINT
BEEMDSTRAAT 11, 5653 MA EINDHOVEN
THE NETHERLANDS
PHONE : +31 - 40 - 2507844
FAX
: +31 - 40 - 2507860
AUSTRALIA
QualiFi Pty Ltd,
24 LIONEL ROAD,
MT. WAVERLEY VIC 3149
AUSTRALIA
PHONE : +61 - (0)3 - 9543 - 1522
FAX
: +61 - (0)3 - 9543 - 3677
NEW ZEALAND
WILDASH AUDIO SYSTEMS NZ
14 MALVERN ROAD MT ALBERT
AUCKLAND NEW ZEALAND
PHONE : +64 - 9 - 8451958
FAX
: +64 - 9 - 8463554
THAILAND
MRZ STANDARD CO., LTD
746 - 754 MAHACHAI ROAD.,
WANGBURAPAPIROM, PHRANAKORN,
BANGKOK, 10200 THAILAND
PHONE : +66 - 2 - 222 9181
FAX
: +66 - 2 - 224 6795
TAIWAN
PAI- YUING CO., LTD.
6 TH FL NO, 148 SUNG KIANG ROAD,
TAIPEI, 10429, TAIWAN R.O.C.
PHONE : +886 - 2 - 25221304
FAX
: +886 - 2 - 25630415
MALAYSIA
WO KEE HONG ELECTRONICS SDN. BHD.
2ND FLOOR BANGUNAN INFINITE CENTRE
LOT 1, JALAN 13/6, 46200 PETALING JAYA
SELANGOR DARUL EHSAN, MALAYSIA
PHONE : +60 - 3 - 7954 8088
FAX
: +60 - 3 - 7954 7088
AMERICAS
MARANTZ PROFESSIONAL PRODUCTS
2640 WHITE OAK CIRCLE, SUITE A
AURORA, ILLINOIS 60504 USA
PHONE : 630 - 820 - 4800
FAX
: 630 - 820 - 8103
KOREA
MK ENTERPRISES LTD.
ROOM 604/605, ELECTRO-OFFICETEL, 16-58,
3GA, HANGANG-RO, YONGSAN-KU, SEOUL
KOREA
PHONE : +822 - 3232 - 155
FAX
: +822 - 3232 - 154
SINGAPORE
WO KEE HONG DISTRIBUTION PTE LTD
130 JOO SENG ROAD
#03-02 OLIVINE BUILDING
SINGAPORE 368357
PHONE : +65 6858 5535 / +65 6381 8621
FAX
: +65 6858 6078
HONG KONG
Jolly ProAudio Broadcast Engineering Ltd.
UNIT 2, 10F, WAH HUNG CENTRE,
41 HUNG TO ROAD, KWUN TONG, KLN.,
HONG KONG
PHONE : 852 - 21913660
FAX
: 852 - 21913990
CANADA
LENBROOK INDUSTRIES LIMITED
633 GRANITE COURT,
PICKERING, ONTARIO L1W 3K1
CANADA
PHONE : 905 - 831 - 6333
FAX
: 905 - 831 - 6936
TECHNICAL AUDIO GROUP PTY, LTD
43-53 Bridge Rd.,
STANMORE NSW 2048
AUSTRALIA
PHONE : +61 - (0)2 - 9519 - 0900
FAX
: +61 - (0)2 - 9519 - 0600
AUSTRALIA
1
1. TECHNICAL SPECIFICATIONS
FM TUNER SECTION
Frequency Range.............................................87.5 - 108.0 MHz
Usable Sensitivity ......................................IHF 1.6 µV/15.35 dBf
Signal to Noise Ratio............................... Mono/Stereo 73/64 dB
Distortion.................................................Mono/Stereo 0.6/0.7 %
Stereo Separation ....................................................1 kHz 33 dB
Alternate Channel Selectivity ............................± 300 kHz 60 dB
Image Rejection ....................................................98 MHz 70 dB
Tuner Output Level ....................... 1 kHz, ± 75 kHz Dev 850 mV
AM TUNER SECTION
Frequency Range................................... 531 - 1602 kHz [/K/N/L]
.......................................... 520 - 1710 kHz [U]
Signal to Noise Ratio.......................................................... 41 dB
Usable Sensitivity..................................................... Loop 560µV
Distortion............................................... 1 kHz, 30 % Mod. 1.0 %
Selectivity ............................................................± 10 kHz 25 dB
AUDIO SECTION [SR5400/PS5400]
Power Output (20 Hz - 20 kHz/THD=0.08%)
Front L&R ........................................................8 ohms 90 W / Ch
Center .............................................................8 ohms 90 W / Ch
Surround L&R .................................................8 ohms 90 W / Ch
Surround Back ................................................8 ohms 90 W / Ch
Front L&R ......................................................6 ohms 110 W / Ch
Center ...........................................................6 ohms 110 W / Ch
Surround L&R ...............................................6 ohms 110 W / Ch
Surround Back ..............................................6 ohms 110 W / Ch
Input Sensitivity/Impedance .......................... 200 mV/ 47 kohms
Signal to Noise Ratio(Analog Input / Source Direct) ............. 100 dB
Frequency Response (Analog Input / Source Direct)
.........................................................8 Hz - 100 kHz (± 3 dB)
(Digital Input / 96 kHz PCM) .......... 8 Hz - 45 kHz (± 3 dB)
AUDIO SECTION [SR6400]
Power Output (20 Hz - 20 kHz/THD=0.08%)
Front L&R ......................................................8 ohms 100 W / Ch
Center ...........................................................8 ohms 100 W / Ch
Surround L&R ...............................................8 ohms 100 W / Ch
Surround Back ..............................................8 ohms 100 W / Ch
Front L&R ......................................................6 ohms 125 W / Ch
Center ...........................................................6 ohms 125 W / Ch
Surround L&R ...............................................6 ohms 125 W / Ch
Surround Back ..............................................6 ohms 125 W / Ch
Input Sensitivity/Impedance ........................... 168mV/ 47 kohms
Signal to Noise Ratio(Analog Input / Source Direct) ............. 105 dB
Frequency Response (Analog Input / Source Direct)
.........................................................8 Hz - 100 kHz (± 3 dB)
(Digital Input / 96 kHz PCM) .......... 8 Hz - 45 kHz (± 3 dB)
VIDEO
Television Format ....................................................... NTSC/PAL
Input Level/Impedance ....................................... 1 Vp-p/75 ohms
Output Level/Impedance .................................... 1 Vp-p/75 ohms
Video Frequency Response ....................5 Hz to 8 MHz (- 1 dB)
S/N ..................................................................................... 60 dB
GENERAL
Power Requirement.................................AC 100 V 50/60 Hz [/F]
...............................................................AC 220 V 50 Hz [/K]
............................................................... AC 110 V 60 Hz [/L]
.............................................................. AC 230 V 50 Hz [/N]
.............................................................. AC 120 V 60 Hz [/U]
Power Consumption ............................ 400 W [SR5400/PS5400]
.................................................................... 420 W [SR6400]
Weight ............................................................................ 12.5 Kg
ACCESSORIES
Remote Control Unit RC5400SR .................1 [SR5400/PS5400]
AAA-size batteries....................................... 2 [SR6400/PS5400]
Remote Control Unit RC7300SRa ............................ 1 [SR6400]
AA-size batteries ...................................................... 2 [SR6400]
FM Antenna............................................................................... 1
AM Loop Antenna ..................................................................... 1
2
Surround Mode
Input Signal
Decoding
Output Channel
Front information display
L/R
C
SL
SB SubW Signal format indicators
Channel status
SR
AUTO
Dolby Surr. EX
Dolby Digital EX
OO
O
O
O
2 DIGITAL
L, C, R, SL, SR, S, LFE
Dolby D (5.1ch)
Dolby Digital 5.1
OO
O
-
O
2 DIGITAL
L, C, R, SL,S R, LFE
Dolby D(2ch)
Dolby Digital 2.0
O
--
--
2 DIGITAL
L, R
Dolby D (2ch Surr)
Pro Logic II movie
OO
O
--
2 DIGITAL , 2 SURROUND
L, R, S
DTS-ES
DTS-ES
OO
O
O
O
dts , ES
L, C, R, SL, SR, S, LFE
DTS 96/24
DTS 96/24
OO
O
-
O
dts 96/24
L, C, R, SL, SR, LFE
DTS (5.1ch)
DTS 5.1
OO
O
-
O
dts
L, C, R, SL, SR, LFE
PCM(Audio)
PCM (Stereo)
O
--
--
PCM
L, R
PCM 96kHz
PCM (96kHz Stereo)
O
--
--
PCM
L, R
Analog
Stereo
O
-
-
-
-
ANALOG
-
S-DIRECT
Dolby D Surr. EX
Dolby Digital EX
OO
O
O
O
2 DIGITAL
L, C, R, SL, SR, S, LFE
Dolby D (5.1ch)
Dolby Digital 5.1
OO
O
-
O
2 DIGITAL
L, C, R, SL, SR, LFE
Dolby D (2ch)
Dolby Digital 2.0
O
--
--
2 DIGITAL
L, R
Dolby D (2ch Surr)
Pro Logic II movie
OO
O
--
2 DIGITAL , 2 SURROUND
L, , R, S
DTS-ES
DTS-ES
OO
O
O
O
dts , ES
L, C, R, SL, SR, S, LFE
DTS 96/24
DTS 96/24
OO
O
-
O
dts 96/24
L, C, R, SL, SR, LFE
DTS (5.1ch)
DTS 5.1
OO
O
-
O
dts
L, C, R, SL, SR, LFE
PCM (Audio)
PCM (Stereo)
O
--
--
PCM
L, R
PCM 96kHz
PCM (96kHz Stereo)
O
--
--
PCM
L, R
Analog
Stereo
O
-
-
-
-
ANALOG
-
EX/ES
Dolby D Surr. EX
Dolby Digital EX
OO
O
O
O
2 DIGITAL
L, C, R, SL, SR, S, LFE
Dolby D (5.1ch)
Dolby Digital EX
OO
O
O
O
2 DIGITAL
L, C, R, SL, SR, LFE
DTS-ES
DTS-ES
OO
O
O
O
dts , ES
L, C, R, SL, SR, S, LFE
DTS(5.1ch)
DTS-ES
OO
O
O
O
dts
L, C, R, SL, SR, LFE
DOLBY
Dolby D Surr. EX
Dolby Digital 5.1
OO
O
-
O
2 DIGITAL
L, C, R, SL, SR, S, LFE
(PL II movie)
Dolby D (5.1ch)
Dolby Digital 5.1
OO
O
-
O
2 DIGITAL
L, C, R, SL, SR, LFE
(PL II music)
Dolby D (2ch)
Pro Logic II
OO
O
--
2 DIGITAL
L, R
(Pro Logic)
Dolby D (2ch Surr)
Pro Logic II
OO
O
--
2 DIGITAL , 2 SURROUND
L, R, S
PCM (Audio)
Pro Logic II
OO
O
-
-
PCM
L, R
Analog
Pro Logic II
OO
O
-
-
ANALOG
-
DTS
DTS-ES
DTS 5.1
OO
O
-
O
dts , ES
L, C, R, SL, SR, S, LFE
(Neo:6 Cinema)
DTS 96/24
DTS 96/24
OO
O
-
O
dts 96/24
L, C, R, SL, SR, LFE
(Neo:6 Music)
DTS (5.1ch)
DTS 5.1
OO
O
-
O
dts
L, C, R, SL, SR, LFE
PCM (Audio)
Neo:6
OO
O
O
-
PCM
L, R
Analog
Neo:6
OO
O
O
-
ANALOG
-
Dolby D (2ch)
Neo:6
OO
O
O
-
2 DIGITAL
L, R
Dolby D (2ch Surr)
Neo:6
OO
O
O
-
2 DIGITAL , 2 SURROUND
L, R, S
CS II Cinema
PCM (Audio)
CS II
OO
O
O
O
PCM
L, R
CS II Music
Analog
CS II
OO
O
O
O
ANALOG
-
CS II Mono
Dolby D (2ch)
CS II
OO
O
O
O
2 DIGITAL
L, R
Dolby D (2ch Surr)
CS II
OO
O
O
O
2 DIGITAL , 2 SURROUND
L, R, S
STEREO
Dolby Surr. EX
Stereo
O
--
-
O
2 DIGITAL
L, C, R, SL, SR, S, LFE
Dolby D (5.1ch)
Stereo
O
--
-
O
2 DIGITAL
L, C, R, SL, SR, LFE
Dolby D (2ch)
Stereo
O
--
--
2 DIGITAL
L, R
Dolby D (2ch Surr)
Stereo
O
--
--
2DIGITAL , 2 SURROUND
L, R, S
DTS-ES
Stereo
O
--
-
O
dts , ES
L, C, R, SL, SR, S, LFE
DTS 96/24
Stereo
O
--
-
O
dts 96/24
L, C, R, SL, SR, LFE
DTS (5.1ch)
Stereo
O
--
-
O
dts
L, C, R, SL, SR, LFE
PCM (Audio)
Stereo
O
--
--
PCM
L, R
PCM 96kHz
Stereo
O
--
--
PCM
L, R
Analog
Stereo
O
-
-
-
-
ANALOG
-
Virtual
Dolby Surr. EX
Virtual
O
--
--
2 DIGITAL
L, C, R, SL, SR, S, LFE
Dolby D (5.1ch)
Virtual
O
--
--
2 DIGITAL
L, C, R, SL, SR, LFE
Dolby D (2ch)
Virtual
O
--
--
2 DIGITAL
L, R
Dolby D (2ch Surr)
Virtual
O
--
--
2 DIGITAL , 2 SURROUND
L, R, S
DTS-ES
Virtual
O
-
-
-
-
dts , ES
L, C, R, SL, SR, S, LFE
DTS (5.1ch)
Virtual
O
-
-
-
-
dts
L, C, R, SL, SR, LFE
PCM (Audio)
Virtual
O
--
--
PCM
L, R
Analog
Virtual
O
-
-
-
-
ANALOG
-
Multi Ch.
Dolby Surr. EX
Dolby Digital EX
OO
O
O
O
2 DIGITAL
L, C, R, SL, SR, S, LFE
Stereo
Dolby D (5.1ch)
Dolby Digital 5.1
OO
O
-
O
2 DIGITAL
L, C, R, SL, SR, LFE
Dolby D (2ch)
Multi Channel Stereo
OO
O
O
-
2 DIGITAL
L, R
Dolby D (2ch Surr)
Multi Channel Stereo
OO
O
O
-
2 DIGITAL , 2 SURROUND
L, R, S
DTS-ES
DTS-ES
OO
O
O
O
dts , ES
L, C, R, SL, SR, S, LFE
DTS (5.1ch)
DTS 5.1
OO
O
-
O
dts
L, C, R, SL, SR, LFE
PCM (Audio)
Multi Channel Stereo
OO
O
O
-
PCM
L, R
Analog
Multi Channel Stereo
OO
O
O
-
ANALOG
-
Note:
· Dolby Digital (2 ch: Lt/Rt): signal with Dolby
Surround flag Speakers are full set.
· No sound outputs from the surround speaker,
center speaker and subwoofer if the DVD disc has
no surround data.
Abbrevations
L/R : Front speakers
C : Center speaker
SL/SR : Surround speakers
SB : Surround Back speaker
SubW : Sub woofer speaker
The relation between the selected surround mode and the input signal
The surround mode is selected with the surround mode buttons on SR5400/SR6400/PS5400 or the remote control unit.
However, the sound you hear is subject to the relationship between the selected surround mode and input signal. That
relationship is as follows;
3
The advantages of discrete multichannel systems over matrix are
well known.
But even in homes equipped for discrete multichannel, there
remains a need for high-quality matrix decoding. This is because of
the large library of matrix surround motion pictures available on disc
and on VHS tape; and analog television broadcasts.
The typical matrix decoder of today derives a center channel and
a mono surround channel from two-channel matrix stereo material.
It is better than a simple matrix in that it includes steering logic to
improve separation, but because of its mono, band-limited surround
it can be disappointing to users accustomed to discrete multichan-
nel.
Neo 6 offers several important improvements as follow,
. Neo 6 provides up to six full-band channels of matrix decoding
from stereo matrix material. Users with 6.1 and 5.1 systems will
derive six and five separate channels, respectively, corresponding to
the standard home-theater speaker layouts.
. Neo 6 technology allows various sound elements within a channel
or channels to be steered separately, and in a way which follows
naturally from the original presentation.
. Neo 6 offers a music mode to expand stereo nonmatrix recordings
into the five- or six-channel layout, in a way which does not diminish
the subtlety and integrity of the original stereo recording.
DTS-ES Extended Surround is a new multi-channel digital signal
format developed by Digital Theater Systems Inc. While offering high
compatibility with the conventional DTS Digital Surround format,
DTSES Extended Surround greatly improves the 360-degree sur-
round impression and space expression thanks to further expanded
surround signals. This format has been used professionally in movie
theaters since 1999.
In addition to the 5.1 surround channels (FL, FR, C, SL, SR and
LFE), DTS-ES Extended Surround also offers the SB (Surround
Back) channel for surround playback with a total of 6.1 channels.
DTS-ES Extended Surround includes two signal formats with differ-
ent surround signal recording methods, as DTS-ES Discrete 6.1 and
DTSES Matrix 6.1.
"DTS", "DTS-ES Extended Surround" and "Neo:6" are trademarks of
Digital Theater Systems, Inc.
The stereo CD is a 16-bit medium with sampling at 44.1 kHz. Pro-
fessional audio has been 20- or 24-bit for some time, and there is
increasing interest in higher sampling rates both for recording and
for delivery into the home. Greater bit depths provide extended
dynamic range. Higher sampling rates allow wider frequency
response and the use of anti-alias and reconstruction filters with
more favorable aural characteristics.
DTS 96/24 allows for 5.1channel sound tracks to be encoded at a
rate of 96kHz/24bits on DVD-Video titles.
When DVD-video appeared, it became possible to deliver 24-bit, 96
kHz audio into the home, but only in two channels, and with serious
limitations on picture. This capability has had little use.
DVD-audio allows 96/24 in six channels, but a new player is needed,
and only analog outputs are provided, necessitating the use of the
D/A converters and analog electronics provided in the player.
DTS 96/24 offers the following:
1.Sound quality transparent to the original 96/24 master.
2.Full backward compatibility with all existing decoders. (Existing
decoders will output a 48 kHz signal)
3.No new player required: DTS 96/24 can be carried on DVD-video,
or in the video zone of DVD-audio, accessible to all DVD players.
4.96/24 5.1-channel sound with full-quality full-motion video, for
music programs and motion picture soundtracks on DVD-video.
2. TECHNICAL DESCRIPTION
Dolby Digital identifies the use of Dolby Digital audio coding for
such consumer formats as DVD and DTV. As with film sound, Dolby
Digital can provide up to five full-range channels for left, center, and
right screen channels, independent left and right surround channels,
and a sixth ( ".1") channel for low-frequency effects.
Dolby Surround Pro Logic II is an improved matrix decoding tech-
nology that provides better spatiality and directionality on Dolby Sur-
round program material; provides a convincing three-dimensional
soundfield on conventional stereo music recordings; and is ideally
suited to bring the surround experience to automotive sound. While
conventional surround programming is fully compatible with Dolby
Surround Pro Logic II decoders, soundtracks will be able to be
encoded specifically to take full advantage of Pro Logic II playback,
including separate left and right surround channels. (Such material
is also compatible with conventional Pro Logic decoders.)
Dolby Digital EX creates six full-bandwidth output channels from
5.1- channel sources. This is done using a matrix decoder that
derives three surround channels from the two in the original record-
ing. For best results, Dolby Digital EX should be used with movies
soundtracks recorded with Dolby Digital Surround EX.
Manufactured under license from Dolby Laboratories. "Dolby", "Pro
Logic", and the double-D symbol are trademarks of Dolby Laborato-
ries.
Circle Surround II (CS-II) is a powerful and versatile multi channel
technology. CS-II is designed to enable up to 6.1 multi channel sur-
round sound playback from mono, stereo, CS encoded sources and
other matrix encoded sources. In all cases the decoder extends
it into 6 channels of surround audio and a LFE/subwoofer signal.
The CS-II decoder creates a listening environment that places the
listener "inside" music performances and dramatically improves both
hi-fi audio conventional surround-encoded video material. CS-II
provides composite stereo rear channels to greatly improve separa-
tion and image positioning adding a heightened sense of realism
to both audio and A/V productions.
CS-II is packed with other useful feature like dialog clarity (SRS
Dialog) for movies and cinema-like bass enrichment (TruBass).
CS-II can enable the dialog to become clearer and more discern-
able in movies and it enables the bass frequencies contained in
the original programming to more closely achieve low frequencies
overcoming the low frequency limitations of the speakers by full
octave.
Circle Surround II, Dialog Clarity, TruBass, SRS and symbol
are trademarks of SRS Labs, Inc.
SRS Circle Surround II, SRS Dialog and SRS TruBass technology
are incorporated under license from SRS Labs, Inc.