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THX
ADVANCED
MANUAL
CROSSOVER
Rev. b
Esec_ADV THX Crossover Inglese_Layout 1 03/05/12 16:21 Pagina 1
General
ADVANCED MANUAL / THX
Index 02
THESIS - The project 03
Assembling and Cable connection 04
Size 05
THX 2
THX 2 Mono-Wiring connections 07
THX 2 Bi-Wiring connections 08
THX 2 Installation recommended with default set filter 09
THX 2 Installation with door mounted tweeter 10
THX 2 Tweeter Level Ajustment 11
THX 2 LFS (Low Frequency Shaping): Adjusting Low Frequency Response to eliminate resonances 12
THX 2 How to disassemble the circuit board “Step 1” “Step 2” 13
THX 2 How to disassemble the circuit board “Step 3” “Step 4” 14
THX 2 Modifications on the single components 15
THX mh
THX mh Mono-Wiring connections 17
THX mh Bi-Wiring connections 18
THX mh Installation recommended with default set filter 19
THX mh Installation with door mounted midrange 20
THX mh Tweeter Level Adjustment 21
THX mh Midrange Hi-pass: Activation of the High-pass filter for the midrange” 22
THX mh How to disassemble the circuit board “Step 1” “Step 2” 23
THX mh How to disassemble the circuit board “Step 3” “Step 4” 24
THX mh Modifications on the single components 25
THX 3
THX 3 Mono-Wiring connections 27
THX 3 Bi-Wiring connections 28
THX 3 Tri-Wiring connections 29
THX 3 Installation recommended with default set filter 30
THX 3 Installation with door mounted midrange 31
THX 3 Installation with door mounted double woofer 32
THX 3 Installation with door mounted double woofer and midrange 33
THX 3 Tweeter Level Adjustment 34
THX 3 Midrange Level Adjustment 35
THX 3 LFS (Low Frequency Shaping): Adjusting Low Frequency Response to eliminate resonances 36
THX 3 How to disassemble the circuit board “Step 1” “Step 2” 37
THX 3 How to disassemble the circuit board “Step 3” “Step 4” 38
THX 3 Modifications on the single components 39
Technical Specifications 40
02
Esec_ADV THX Crossover Inglese_Layout 1 03/05/12 16:21 Pagina 2
THX 3THX 2 THX mh
ADVANCED MANUAL / THX
THESIS
The Project
In order to create a system capable of reproducing amazing, first-class Sound, each acoustical
component must abide to the most elevated standards of quality and design.
The Thesis amplifiers offer their best performance when used with speakers designed with the same
philosophy. Throughout the years Thesis has represented a name referenced to the perfection of
electro
nic design and performance. Today, technological development has enabled us to push the
envelope in terms of the prestigious Thesis tradition. Creating a supreme product in amplification, the
Audison development team has achieved their ambition of reproducing an unparalleled Sound.
Appropriate tuning
Assembling a speaker system imposes choices in which parameters such as personal taste, the
physical installation limits and the acoustic environment of the vehicle itself have to be considered.
Thesis speakers ensure the highest performance with both multi-amplified active systems and with
systems using “passive” crossovers.
Pairing TH speakers with the TH amplifiers intensifies the synergy of products belonging to the same
magnificent project. Therefore, choosing an active multi-amplified system or the use of passive
c
rossovers is merely a question of personal taste.
The available crossover networks are:
THX 2, for a full range two-way system with TH 1.5 violino and TH 6.5 sax;
THX 3, for a full range three-way system with TH 1.5 violino, TH 3.0 voce and TH 6.5 sax;
THX mh, for a mid to high frequency system with TH 3.0 voce and TH 1.5 violino as part of
a "mixed" multi-way system.
Open design
Each filter is, in actual fact, an “open” design which can be customised in order to obtain the best
acoustic response in any environment.
Extreme customization
A mother board, designed for maximum versatile adaptation, provides the ability for anyone to
customize their own THX crossover.
Designed as a continued project in-progress, it is possible to change and set:
- the power connection mode for BiWiring or when used as a passive multi-amplified
s
ystem;
- the output level of every single speaker;
- the cut-off frequency of every single output;
- the filter cut-off slope;
- the Q (quality factor) at the crossover frequency;
- the use of notch filters to adjust the system to the vehicles acoustics.
Audison Thesis Advisor
The THX crossover default configuration has been designed to achieve the highest sound quality
levels. This Advanced Manual offers complete information to fully enjoy their potential.
Each user has at his/her disposal the best support to make the most of the Thesis line expandability
and customization possibilities. Through the “Support” area of the Audison website the user can
interact with the Audison Thesis Advisor to be guided by a professional inside the Audison R&D
Division who will provide him/her with the opportunity to further enhance their crossover.
A mother board, designed for maximum versatile adaptation, provides the ability for the users to
customize their own THX crossover.
03
Esec_ADV THX Crossover Inglese_Layout 1 03/05/12 16:21 Pagina 3
ADVANCED MANUAL / THX
THX 3THX 2 THX mh
2 mm
L: 11 ÷ 15 mm (7/16” ÷ 5/8”)
O MAX: 4,8 mm (6 AWG)
O 4.2 x 38 mm
(supplied)
Cable connection
Assembling
THX
04
Esec_ADV THX Crossover Inglese_Layout 1 03/05/12 16:21 Pagina 4
THX 3THX 2 THX mh
ADVANCED MANUAL / THX
E
A B
C
D
Size
190 166 348 324 66,5
A B C D E
7”
1/2
6”
1/2
13”
3/4
12”
3/4
2”
5/8
258 234 438 414 66,5
10”
3/16
9”
1/4
17”
1/4
16”
5/16
2”
5/8
THX 2
THX mh
THX 3
Misure espresse in millimetri e pollici / Measures in mm and inches
05
Esec_ADV THX Crossover Inglese_Layout 1 03/05/12 16:21 Pagina 5
THX 2
ADVANCED MANUAL / THX 2
THX 2
PATTERNS
TUNING KIT (supplied)
N° 2 1Ω, 10W Resistors
N° 2 2,2Ω, 10W Resistors
N° 2 3,3Ω, 10W Resistors
N° 2 4,7Ω, 10W Resistors
N° 2 5,6Ω, 10W Resistors
N° 2 1µF, 330V Polypropylene capacitors
N° 4 4,2x38 mm cross headed,
self-tapping fixing screws
Esec_ADV THX Crossover Inglese_Layout 1 03/05/12 16:21 Pagina 6
ADVANCED MANUAL / THX 2
THX 2
THX 2 Mono-Wiring connection
Left Channel Right Channel
TH 1.5
violino
TH 1.5
violino
TH 6.5
sax
TH 6.5
sax
Mono-Wiring
Amplifier to
the 2 way system
Left Right
07
Esec_ADV THX Crossover Inglese_Layout 1 03/05/12 16:21 Pagina 7
ADVANCED MANUAL / THX 2
THX 2
THX 2 Bi-Wiring connection
Left Channel Right Channel
Bi-Wiring
TH 1.5
violino
TH 1.5
violino
TH 6.5
sax
TH 6.5
sax
Amplifier to
Woofer
Left Right
Amplifier to
Tweeter
Left Right
08
Esec_ADV THX Crossover Inglese_Layout 1 03/05/12 16:21 Pagina 8
ADVANCED MANUAL / THX 2
THX 2
5,6Ω
8,2Ω
6,8Ω
3,9Ω
2,2Ω
15Ω
15Ω
4,7Ω
4,7Ω
0,68mH
0,68mH
4,7µF
3,3mH
220µF
J1
R1
R2
R3
R4
L1
L3
C1
L2
C2
J2
R6
R5
R7
J6
J7
R8
R9
J8
J9
J3
Tweeter suggested position
THX 2 Installation recommended
with default set filter
TH 1.5
violino
TH 6.5
sax
09
Esec_ADV THX Crossover Inglese_Layout 1 03/05/12 16:21 Pagina 9
ADVANCED MANUAL / THX 2
THX 2
THX 2 Installation with door mounted tweeter
Left Channel
WORK ON THESE COMPONENTS!
(see page 13÷15)
Right Channel
4,7Ω
4,7Ω
5,6Ω
1,0Ω
4,7Ω
15Ω
15Ω
0,68mH
4,7µF
3,3mH
220µF
J1
R1
R2
R3
R4
L1
C1
1,0µF C3
L2
C2
R6
R5
J6
3,3Ω R7J7
R9
2,2Ω
R8
J8
J9
0,68mH
L3
J2
J3
TH 1.5
violino
TH 6.5
sax
A
C
B
A
C
B
B
C
A
10
Esec_ADV THX Crossover Inglese_Layout 1 03/05/12 16:21 Pagina 10
THX 2 Tweeter Level Adjustment
+4dB
+2dB
0dB
-2dB
+4dB
+2dB
0dB
-2dB
+4dB
+2dB
0dB
-2dB
+4dB
+2dB
0dB
-2dB
500 1k 2k 10k5k 20k
0
dB
500 1k 2k 10k5k 20k
0
-2
0
0
dB
+2
500 1k 2k 10k5k 20k
500 1k 2k 10k5k 20k
dB
0
dB
+4
ADVANCED MANUAL / THX 2
THX 2
11
Esec_ADV THX Crossover Inglese_Layout 1 03/05/12 16:21 Pagina 11
5020 100 200 500 1k 2k 10k5k 20k
THX 2 LFS (Low Frequency Shaping)
Adjusting Low Frequency Response to eliminate resonances
- 4dB
LFS
- 2dB
0dB
- 4dB
LFS
- 2dB
0db
- 4dB
LFS
- 2db
0dB
dB
0
180
0
5020 100 200
180
500 1k 2k 10k5k 20k
0
dB
-4
5020 100 200 500 1k 2k 10k5k 20k
180
0
dB
-2
ADVANCED MANUAL / THX 2
THX 2
12
Esec_ADV THX Crossover Inglese_Layout 1 03/05/12 16:21 Pagina 12
ADVANCED MANUAL / THX 2
THX 2
THX 2 How to disassemble the circuit board
Step 1: remove plexiglass cover (see page 4)
Step 2: remove the main screws (marked in blue)
Left Channel Right Channel
13
Esec_ADV THX Crossover Inglese_Layout 1 03/05/12 16:21 Pagina 13
ADVANCED MANUAL / THX 2
THX 2
THX 2 How to disassemble the circuit board
Step 3: remove the screws that secure the resistor blocks (marked in blue)
Step 4: remove the screws that secure the resistors with the clamps
Clamp
14
Esec_ADV THX Crossover Inglese_Layout 1 03/05/12 16:21 Pagina 14
ADVANCED MANUAL / THX 2
THX 2
THX 2 Modifications on the single components
Insert the supplied 1,0 µF
capacitor
Replace the 6,8resistor originally
mounted with a 5,6one supplied
with the product
Replace the supplied resistors
originally mounted following the
diagram on page 10
A
C
B
15
Esec_ADV THX Crossover Inglese_Layout 1 03/05/12 16:21 Pagina 15
THX mh
ADVANCED MANUAL / THX mh
THX mh
PATTERNS
TUNING KIT (supplied)
N° 2 1.5 mH, Ø 42 mm inductances
N° 2 1µF, 330V Polypropylene capacitors
N° 4 4,2x38 mm cross headed,
self-tapping fixing screws
Esec_ADV THX Crossover Inglese_Layout 1 03/05/12 16:21 Pagina 16
ADVANCED MANUAL / THX mh
THX mh
THX mh Mono-Wiring connection
Left Channel Right Channel
TH 1.5
violino
TH 1.5
violino
TH 3.0
voce
TH 3.0
voce
Mono-Wiring
Amplifier to
the Mid-high system
Left Right
17
Esec_ADV THX Crossover Inglese_Layout 1 03/05/12 16:21 Pagina 17
ADVANCED MANUAL / THX mh
THX mh
THX mh Bi-Wiring connection
Left Channel Right Channel
TH due
Bi-Wiring
TH 1.5
violino
TH 1.5
violino
TH 3.0
voce
TH 3.0
voce
Amplifier to
Midrange
Left Right
Amplifier to
Tweeter
Left Right
18
Esec_ADV THX Crossover Inglese_Layout 1 03/05/12 16:21 Pagina 18
ADVANCED MANUAL / THX mh
THX mh
4,7Ω
2,2Ω
1.00mH
2,2µF
22µF
J2
C1
C4
L1
10µF
C3
0,68mH
L3
R1
R2
J5
J6
J7
Tweeter
suggested
position
Midrange
suggested
position
THX mh Installation recommended
with default set filter
TH 1.5
violino
TH 3.0
voce
19
Esec_ADV THX Crossover Inglese_Layout 1 03/05/12 16:21 Pagina 19
ADVANCED MANUAL / THX mh
THX mh
Tweeter suggested position
4,7Ω
2,2Ω
1.00mH
2,2µF
22µF
10µF
J2
C1
C4
L1
C2
10µF
C3
1,5mH
L2
R1
R2
J5
J1
J6
J7
0,68mH
L3
THX mh Installation with door mounted midrange
10
µF
C2
1,5
mH
L2
Left Channel
WORK ON THESE COMPONENTS!
(see Page 23÷25)
Right Channel
TH 1.5
violino
TH 3.0
voce
A
BB
A
B
A
20
Esec_ADV THX Crossover Inglese_Layout 1 03/05/12 16:21 Pagina 20
THX mh Tweeter Level Adjustment
0dB
+2dB
-2dB
0dB
+2dB
-2dB
500 1k 2k 10k5k 20k
500 1k 2k 10k5k 20k
0
0dB
+2dB
-2dB
500 1k 2k 10k5k 20k
0
dB
0
ADVANCED MANUAL / THX mh
THX mh
dB
+2
0
dB
-2
21
Esec_ADV THX Crossover Inglese_Layout 1 03/05/12 16:21 Pagina 21
THX mh Midrange Hi-pass
Activation of the High-pass filter for the midrange
5020 100 200 500 1k 2k 10k5k 20k
0
5020 100 200 500 1k 2k 10k5k 20k
0
ADVANCED MANUAL / THX mh
THX mh
Hi-pass frequency: ON
dB
Hi-pass frequency: OFF
dB
0
22
Esec_ADV THX Crossover Inglese_Layout 1 03/05/12 16:21 Pagina 22
ADVANCED MANUAL / THX mh
THX mh
Left Channel Right Channel
THX mh How to disassemble the circuit board
Step 1: remove plexiglass cover (see page 4)
Step 2: remove the main screws (marked in blue)
23
Esec_ADV THX Crossover Inglese_Layout 1 03/05/12 16:21 Pagina 23
ADVANCED MANUAL / THX mh
THX mh
Left Channel Right Channel
Clamp
THX mh How to disassemble the circuit board
Step 3: remove the screws that secure the resistor blocks (marked in blue)
Step 4: remove the screws that secure the resistors with the clamps
24
Esec_ADV THX Crossover Inglese_Layout 1 03/05/12 16:21 Pagina 24
ADVANCED MANUAL / THX mh
THX mh
THX mh Modifications on the single components
Insert the supplied 10 µF capacitor
Insert the supplied 1,5 mH coil
A
B
25
Esec_ADV THX Crossover Inglese_Layout 1 03/05/12 16:21 Pagina 25
THX 3
ADVANCED MANUAL / THX 3
THX 3
PATTERNS
TUNING KIT (supplied)
N° 2 1.5 mH, Ø 42 mm inductances
N° 2 6,8Ω, 10W Resistors
N° 2 2,2Ω, 25W Resistors
N° 2 2,7Ω, 25W Resistors
N° 2 3,3Ω, 25W Resistors
N° 2 10µF, 250V Polypropylene capacitors
N° 4 4,2x38 mm cross headed,
self-tapping fixing screws
Esec_ADV THX Crossover Inglese_Layout 1 03/05/12 16:21 Pagina 26
ADVANCED MANUAL / THX 3
THX 3
THX 3 Mono-Wiring connection
Left Channel Right Channel
J26
-4db
-2db
0db
J25
+2db
-2db
+4db
0db
J17
J16
J15
J18
+2db
-2db
+4db
0db
J13
J12
J11
J14
J24
LFS
J22
C10
C8
L9
L7
R21
R20
L5
L4
R1 R9
R10
R11
R12
R13
R14 R22
R23
R24
R25
R26
C11
C12
C7
L6
R15
R16
R17
R18
R2
R3
R4
C6
C1
C2
L2
R5
C3
C5
C4
L1
L3
R19
R8
R7
R6
L10
L8
C9
-2db
+2db
0db
J21
J20
MD
Level
J10
-2db
+2db
0db
J9
J8
MD
Level
J5
-4db
-2db
0db
J4
J3
LFS
TW Level
TW Level
J1
J2
OFF ON
OFF ON
J1
J2
OFF ON
OFF ON
J1
J2
OFF ON
OFF ON
J1
J2
OFF ON
OFF ON
Mono-Wiring
TH 1.5
violino
TH 1.5
violino
TH 3.0
voce
TH 3.0
voce
TH 6.5
sax
TH 6.5
sax
Amplifier to
the 3 way system
Left Right
+ OUTPUT - WF + INPUT -+ OUTPUT - TW + INPUT - TW + OUTPUT -+ INPUT - MD + OUTPUT -+ INPUT - + OUTPUT - MD + INPUT - WF + OUTPUT -+ INPUT -
27
Esec_ADV THX Crossover Inglese_Layout 1 03/05/12 16:21 Pagina 27
ADVANCED MANUAL / THX 3
THX 3
THX 3 Bi-Wiring connection
Left Channel Right Channel
J26
-4db
-2db
0db
J25
+2db
-2db
+4db
0db
J17
J16
J15
J18
+2db
-2db
+4db
0db
J13
J12
J11
J14
J24
LFS
J22
C10
C8
L9
L7
R21
R20
L5
L4
R1 R9
R10
R11
R12
R13
R14 R22
R23
R24
R25
R26
C11
C12
C7
L6
R15
R16
R17
R18
R2
R3
R4
C6
C1
C2
L2
R5
C3
C5
C4
L1
L3
R19
R8
R7
R6
L10
L8
C9
-2db
+2db
0db
J21
J20
MD
Level
J10
-2db
+2db
0db
J9
J8
MD
Level
J5
-4db
-2db
0db
J4
J3
LFS
TW Level
TW Level
J1
J2
OFF ON
OFF ON
J1
J2
OFF ON
OFF ON
J1
J2
OFF ON
OFF ON
J1
J2
OFF ON
OFF ON
Amplifier to
Tweeter + Midrange
Left Right
Left Right
Amplifier to
Woofer
Bi-Wiring
Mono-Wiring
TH 1.5
violino
TH 1.5
violino
TH 3.0
voce
TH 3.0
voce
TH 6.5
sax
TH 6.5
sax
+ OUTPUT - WF + INPUT -+ OUTPUT - TW + INPUT - TW + OUTPUT -+ INPUT - MD + OUTPUT -+ INPUT - + OUTPUT - MD + INPUT - WF + OUTPUT -+ INPUT -
AB
AB
AB
28
Esec_ADV THX Crossover Inglese_Layout 1 03/05/12 16:21 Pagina 28
ADVANCED MANUAL / THX 3
THX 3
THX 3 Tri-Wiring connection
Left Channel Right Channel
J26
-4db
-2db
0db
J25
+2db
-2db
+4db
0db
J17
J16
J15
J18
+2db
-2db
+4db
0db
J13
J12
J11
J14
J24
LFS
J22
C10
C8
L9
L7
R21
R20
L5
L4
R1 R9
R10
R11
R12
R13
R14 R22
R23
R24
R25
R26
C11
C12
C7
L6
R15
R16
R17
R18
R2
R3
R4
C6
C1
C2
L2
R5
C3
C5
C4
L1
L3
R19
R8
R7
R6
L10
L8
C9
-2db
+2db
0db
J21
J20
MD
Level
J10
-2db
+2db
0db
J9
J8
MD
Level
J5
-4db
-2db
0db
J4
J3
LFS
TW Level
TW Level
J1
J2
OFF ON
OFF ON
J1
J2
OFF ON
OFF ON
J1
J2
OFF ON
OFF ON
J1
J2
OFF ON
OFF ON
Bi-Wiring
+ OUTPUT - WF + INPUT -+ OUTPUT - TW + INPUT - TW + OUTPUT -+ INPUT - MD + OUTPUT -+ INPUT - + OUTPUT - MD + INPUT - WF + OUTPUT -+ INPUT -
TH 1.5
violino
TH 1.5
violino
TH 3.0
voce
TH 3.0
voce
TH 6.5
sax
TH 6.5
sax
Amplifier to
Tweeter
Left Right
Amplifier to
Midrange
Left Right
Amplifier to
Woofer
Left Right
29
Esec_ADV THX Crossover Inglese_Layout 1 03/05/12 16:21 Pagina 29
ADVANCED MANUAL / THX 3
THX 3
Tweeter
suggested
position
Midrange
suggested
position
+ OUTPUT - WF + INPUT -+ OUTPUT - TW + INPUT - TW + OUTPUT -+ INPUT - WF + OUTPUT -+ INPUT - MD + OUTPUT -+ INPUT - + OUTPUT - MD + INPUT -
J26
-4db
-2db
0db
J25
+2db
-2db
+4db
0db
J17
J16
J15
J18
+2db
-2db
+4db
0db
J13
J12
J11
J14
J24
LFS
J22
C10
C8
L9
L7
R21
R20
L5
L4
R1 R9
R10
R11
R12
R13
R14 R22
R23
R24
R25
R26
C11
C12
C7
L6
R15
R16
R17
R18
R2
R3
R4
C6
C1
C2
L2
R5
C3
C5
C4
L1
L3
R19
R8
R7
R6
L10
L8
C9
-2db
+2db
0db
J21
J20
MD
Level
J10
-2db
+2db
0db
J9
J8
MD
Level
J5
-4db
-2db
0db
J4
J3
LFS
TW Level
TW Level
J1
J2
OFF ON
OFF ON
J6
J7
OFF ON
OFF ON
J19
J23
OFF ON
OFF ON
J27
J28
OFF ON
OFF ON
4,7Ω
3,9Ω
4,7Ω
4,7Ω
3,3Ω
4,7Ω
15Ω
15Ω
4.7mH
22µF
3,3mH
220µF
J3
R1
R2
R3
R4
L2
C4
1.00mH
L1
10µF
C3
L3
47µF
C1
C2
R6
R5
R7
J8
J9
R8
J10
5,6Ω
8,2Ω
10Ω
1,5Ω
2,2µF
C6
R9
R13
R10
J11
J12
R12
J14
0,68mH
L4
3,3Ω
R11J13
THX 3 Installation recommended
with default set filter
J4
J5
TH 1.5
violino
TH 3.0
voce
TH 6.5
sax
30
Esec_ADV THX Crossover Inglese_Layout 1 03/05/12 16:21 Pagina 30
ADVANCED MANUAL / THX 3
THX 3
4,7Ω
2,7Ω
3,3Ω
6,8Ω
2,2Ω
4,7Ω
15Ω
15Ω
4.7mH
22µF
3,3mH
220µF
J3
R1
R2
R3
R4
L2
C4
1.0 mH
L1
10µF
C5
L3
47µF
C1
C2
J4
R6
R5
R7
J8
J9
R8J10
J5
.1,5mH
L5
Tweeter
suggested
position
5,6Ω
8,2Ω
10Ω
1,5Ω
2,2µF
C6
R9
R13
R10
J11
J12
R12
J14
0,68mH
L3
3,3Ω
R11J13
+ OUTPUT - WF + INPUT -+ OUTPUT - TW + INPUT - TW + OUTPUT -+ INPUT - WF + OUTPUT -+ INPUT - MD + OUTPUT -+ INPUT - + OUTPUT - MD + INPUT -
J26
-4db
-2db
0db
J25
+2db
-2db
+4db
0db
J17
J16
J15
J18
+2db
-2db
+4db
0db
J13
J12
J11
J14
J24
LFS
J22
C10
C8
L9
L7
R21
R20
L5
L4
R1 R9
R10
R11
R12
R13
R14 R22
R23
R24
R25
R26
C11
C12
C7
L6
R15
R16
R17
R18
R2
R3
R4
C6
C1
C2
L2
R5
C3
C5
C4
L1
L3
R19
R8
R7
R6
L10
L8
C9
-2db
+2db
0db
J21
J20
MD
Level
J10
-2db
+2db
0db
J9
J8
MD
Level
J5
-4db
-2db
0db
J4
J3
LFS
TW Level
TW Level
J1
J2
OFF ON
OFF ON
J1
J2
OFF ON
OFF ON
J1
J2
OFF ON
OFF ON
J1
J2
OFF ON
OFF ON
THX 3 Installation with door mounted midrange
6,8
R5
.1,5mH
L5
2,7
Ω
3,3
2,2
Ω
R6
R7
J8
J9
R8
J10
WORK ON THESE COMPONENTS! (see page 37÷39)
Left Channel Right Channel
TH 1.5
violino
TH 3.0
voce
TH 6.5
sax
B
BB
D
DD
A
AA
C
CC
10µF
C3
31
Esec_ADV THX Crossover Inglese_Layout 1 03/05/12 16:21 Pagina 31
Tweeter
suggested
position
Midrange
suggested
position
+ OUTPUT - WF + INPUT -+ OUTPUT - TW + INPUT - TW + OUTPUT -+ INPUT - WF + OUTPUT -+ INPUT - MD + OUTPUT -+ INPUT - + OUTPUT - MD + INPUT -
J26
-4db
-2db
0db
J25
+2db
-2db
+4db
0db
J17
J16
J15
J18
+2db
-2db
+4db
0db
J13
J12
J11
J14
J24
LFS
J22
C10
C8
L9
L7
R21
R20
L5
L4
R1 R9
R10
R11
R12
R13
R14 R22
R23
R24
R25
R26
C11
C12
C7
L6
R15
R16
R17
R18
R2
R3
R4
C6
C1
C2
L2
R5
C3
C5
C4
L1
L3
R19
R8
R7
R6
L10
L8
C9
-2db
+2db
0db
J21
J20
MD
Level
J10
-2db
+2db
0db
J9
J8
MD
Level
J5
-4db
-2db
0db
J4
J3
LFS
TW Level
TW Level
J1
J2
OFF ON
OFF ON
J6
J7
OFF ON
OFF ON
J19
J23
OFF ON
OFF ON
J27
J28
OFF ON
OFF ON
4,7Ω
3.9Ω
4.7Ω
4.7Ω
3.3Ω
4,7Ω
15Ω
15Ω
3.3mH
22µF
3.3mH
220µF
J3
R1
R2
R3
R4
L2
C4
1.00 mH
L1
10µF
C3
L3
47µF
C1
C2
R6
R5
R7
J8
J9
R8J10
5.6Ω
8.2Ω
10Ω
1.5Ω
2.2µF
C6
R9
R13
R10
J11
J12
R12J14
0,68mH
L4
3.3Ω
R11J13
THX 3 Installation with door mounted
double woofer
3.3mH
L3
Left Channel Right Channel
J4
J5
WORK ON THIS COMPONENT! (see page 37÷39)
TH 1.5
violino
TH 3.0
voce
2 x
TH 6.5
sax
E
EE
ADVANCED MANUAL / THX 3
THX 3
32
Esec_ADV THX Crossover Inglese_Layout 1 03/05/12 16:21 Pagina 32
ADVANCED MANUAL / THX 3
THX 3
2,7Ω
3,3Ω
6,8Ω
2,2Ω
3.3mH
22µF
3,3mH
220µF
J3
R1
R2
R3
R4
L2
C4
1.00mH L1
10µF
10µF
C5
C3
L3
47µFC1
C2
R6
R5
R7
J8
J9
R8J10
.1,5mH L5
+ OUTPUT - WF + INPUT -+ OUTPUT - TW + INPUT - TW + OUTPUT -+ INPUT - WF + OUTPUT -+ INPUT - MD + OUTPUT -+ INPUT - + OUTPUT - MD + INPUT -
J26
-4db
-2db
0db
J25
+2db
-2db
+4db
0db
J17
J16
J15
J18
+2db
-2db
+4db
0db
J13
J12
J11
J14
J24
LFS
J22
C10
C8
L9
L7
R21
R20
L5
L4
R1 R9
R10
R11
R12
R13
R14 R22
R23
R24
R25
R26
C11
C12
C7
L6
R15
R16
R17
R18
R2
R3
R4
C6
C1
C2
L2
R5
C3
C5
C4
L1
L3
R19
R8
R7
R6
L10
L8
C9
-2db
+2db
0db
J21
J20
MD
Level
J10
-2db
+2db
0db
J9
J8
MD
Level
J5
-4db
-2db
0db
J4
J3
LFS
TW Level
TW Level
J1
J2
OFF ON
OFF ON
J6
J7
OFF ON
OFF ON
J19
J23
OFF ON
OFF ON
J27
J28
OFF ON
OFF ON
Tweeter
suggested
position
5,6Ω
8,2Ω
10Ω
1,5Ω
2,2µF
C6
R9
R13
R10
J11
J12
R12J14
0,68mH L4
3,3Ω R11J13
THX 3 Installation with door mounted
double woofer and midrange
Left Channel Right Channel
4,7Ω
4,7Ω
15Ω
15Ω
J4
J5
WORK ON THESE COMPONENTS! (see page 37÷39)
TH 1.5
violino
TH 3.0
voce
2 x
TH 6.5
sax
B
D
E
A
C
BB
DD
A
A
EE
CC
33
Esec_ADV THX Crossover Inglese_Layout 1 03/05/12 16:21 Pagina 33
+2db
-2db
+4db
0db
J13
J12
J11
J14
L4
R1 R9
R10
R11
R12
R13
R2
R3
R4
C6
R5
R8
R7
R6
J10
-2db
+2db
0db
J9
J8
MD
Level
TW Level
MD
L l
THX 3 Tweeter Level Adjustment
J13
J12
J11
J14
TW Level
-2dB
0dB
+2dB
+4dB
J10
+2db
MD
Level
J13
J12
J11
J14
TW Level
-2dB
0dB
+2dB
+4dB
J10
+2db
MD
Level
500 1k 2k 10k5k 20k
00
500 1k 2k 10k5k 20k
0
0
J13
J12
J11
J14
TW Level
-2dB
0dB
+2dB
+4dB
J10
+2db
MD
Level
J13
J12
J11
J14
TW Level
-2dB
0dB
+2dB
+4dB
J10
+2db
MD
Level
500 1k 2k 10k5k 20k
500 1k 2k 10k5k 20k
ADVANCED MANUAL / THX 3
THX 3
-2
dB
0
dB
+4
dB
+2
dB
34
Esec_ADV THX Crossover Inglese_Layout 1 03/05/12 16:21 Pagina 34
+2db
-2db
+4db
0db
J13
J12
J11
J14
R21
R20
L5
L4
R1 R9
R10
R11
R12
R13
R14
R15
R16
R17
R18
R2
R3
R4
C6
R5
C3
C5
C4
R19
R8
R7
R6
J10
-2db
+2db
0db
J9
J8
MD
Level
J5
-4db
-2db
0db
J4
J3
LFS
TW Level
J11
THX 3 Midrange Level Adjustment
-2db
J12
J11
vel
J10
J9
J8
MD
Level
-2dB
+2dB
0dB
-2db
J12
J11
vel
J10
J9
J8
MD
Level
-2dB
+2dB
0dB
-2db
J12
J11
vel
J10
J9
J8
MD
Level
-2dB
+2dB
0dB
5020 100 200 500 1k 2k 10k5k
0
ADVANCED MANUAL / THX 3
THX 3
dB
5020 100 200 500 1k 2k 10k5k
0
dB
+2
5020 100 200 500 1k 2k 10k5k
0
dB
-2
35
Esec_ADV THX Crossover Inglese_Layout 1 03/05/12 16:21 Pagina 35
WF + OUTPUT -+ INPUT - MD + OUTPUT -+ INPUT -
+2db
-2db
+4db
0db
J13
J12
J11
J14
L5
L4
R1
R2
R3
R4
C6
C1
C2
L2
R5
C3
C5
L1
L3
J10
-2db
+2db
0db
J9
J8
MD
Level
J5
-4db
-2db
0db
J4
J3
LFS
TW Level
J1
J2
OFF ON
OFF ON
J1
J2
OFF ON
OFF ON
THX 3 LFS (Low Frequency Shaping)
Adjusting Low Frequency Response to eliminate resonances
J4
J3
- 4dB
LFS
- 2dB
0dB
J4
J3
- 4dB
LFS
- 2dB
0dB
J5
J4
J3
- 4dB
LFS
- 2dB
0dB
J5
5020 100 200 500 1k 2k 10k5k 20k
0
160
dB
-2
5020 100 200 500 1k 2k 10k5k 20k
0
160
dB
0
ADVANCED MANUAL / THX 3
THX 3
5020 100 200 500 1k 2k 10k5k 20k
0
160
dB
-4
36
Esec_ADV THX Crossover Inglese_Layout 1 03/05/12 16:21 Pagina 36
ADVANCED MANUAL / THX 3
THX 3
+ OUTPUT - WF + INPUT -+ OUTPUT - TW + INPUT - TW + OUTPUT -+ INPUT - WF + OUTPUT -+ INPUT - MD + OUTPUT -+ INPUT - + OUTPUT - MD + INPUT -
J26
-4db
-2db
0db
J25
+2db
-2db
+4db
0db
J17
J16
J15
J18
+2db
-2db
+4db
0db
J13
J12
J11
J14
J24
LFS
J22
C10
C8
L9
L7
R21
R20
L5
L4
R1 R9
R10
R11
R12
R13
R14 R22
R23
R24
R25
R26
C11
C12
C7
L6
R15
R16
R17
R18
R2
R3
R4
C6
C1
C2
L2
R5
C3
C5
C4
L1
L3
R19
R8
R7
R6
L10
L8
C9
-2db
+2db
0db
J21
J20
MD
Level
J10
-2db
+2db
0db
J9
J8
MD
Level
J5
-4db
-2db
0db
J4
J3
LFS
TW Level
TW Level
J1
J2
OFF ON
OFF ON
J1
J2
OFF ON
OFF ON
J1
J2
OFF ON
OFF ON
J1
J2
OFF ON
OFF ON
THX 3 How to disassemble the circuit board
Step 1: remove plexiglass cover (see page 4)
Step 2: remove the main screws (marked in blue)
37
Esec_ADV THX Crossover Inglese_Layout 1 03/05/12 16:21 Pagina 37
ADVANCED MANUAL / THX 3
THX 3
THX 3 How to disassemble the circuit board
Step 3: remove the screws that secure the resistor blocks (marked in blue)
Step 4: remove the screws that secure the resistors with the clamps
+ OUTPUT - WF + INPUT -+ OUTPUT - TW + INPUT - TW + OUTPUT -+ INPUT - WF + OUTPUT -+ INPUT - MD + OUTPUT -+ INPUT - + OUTPUT - MD + INPUT -
J26
-4db
-2db
0db
J25
+2db
-2db
+4db
0db
J17
J16
J15
J18
+2db
-2db
+4db
0db
J13
J12
J11
J14
J24
LFS
J22
C10
C8
L9
L7
R21
R20
L5
L4
R1 R9
R10
R11
R12
R13
R14 R22
R23
R24
R25
R26
C11
C12
C7
L6
R15
R16
R17
R18
R2
R3
R4
C6
C1
C2
L2
R5
C3
C5
C4
L1
L3
R19
R8
R7
R6
L10
L8
C9
-2db
+2db
0db
J21
J20
MD
Level
J10
-2db
+2db
0db
J9
J8
MD
Level
J5
-4db
-2db
0db
J4
J3
LFS
TW Level
TW Level
J1
J2
OFF ON
OFF ON
J1
J2
OFF ON
OFF ON
J1
J2
OFF ON
OFF ON
J1
J2
OFF ON
OFF ON
Clamp
38
Esec_ADV THX Crossover Inglese_Layout 1 03/05/12 16:21 Pagina 38
ADVANCED MANUAL / THX 3
THX 3
THX 3 Modifcations on the single components
CD
B
E
Insert the supplied 1,5 mH coilInsert the supplied 10 µF
capacitor
Replace the 4,7resistor
originally mounted with the 6,8
one, supplied with the product.
1. Remove the screws securing the
coil from the bottom of the PCB;
2. Unsolder the coil leads;
3. Unwind the coil with the help of
an LCR meter until the value of
3,3 mH can be measured;
4. Refixe the coil.
Replace the supplied
resistors originally mounted
following the diagram
on page 31 or 33
A
39
Esec_ADV THX Crossover Inglese_Layout 1 03/05/12 16:21 Pagina 39
THX 3THX 2 THX mh
mm / inch
W peak
W continuous
LO/HI-pass
dB/Oct.
Tweeter
Midrange
Woofer
THX 2
Stereo 2 way
Passive Crossover Network
348x190x66,5
13”
3/4
x7”
1/2
x2”
5/8
400
200
2.5 kHz
6/12
TH 1.5 violino +
TH 6.5 sax
-2; 0; +2; +4 dB
LFS 0; -2; -4 dB
Low Frequency Shaping
Speaker Position Contour
Multi-Amp Configuration
Audison Thesis Advisor
THX 3
Stereo 3 way
Passive Crossover Network
438x258x66,5
17”
1/4
x10”
1/4
x2”
5/8
400
200
450 Hz / 3.5 kHz
12/6-12/12
TH 1.5 violino +
TH 3.0 voce +
TH 6.5 sax
-2; 0; +2; +4 dB
-2; 0; +2 dB
LFS 0; -2; -4 dB
Low Frequency Shaping
Speaker Position Contour
Multi-Amp Configuration
Audison Thesis Advisor
THX mh
Stereo 2 way Mid-High
Passive Crossover Network
348x190x66,5
13”
3/4
x7”
1/2
x2”
5/8
400
200
280 Hz / 3.5 kHz
6 (ON-OFF) / 12 (default)
12 (ON-OFF) / 12 (optional)
TH 1.5 violino +
TH 3.0 voce
-2; 0; +2 dB
MD Hi-pass ON/OFF
(280 Hz @ 6/12 dB/Oct.)
Low Frequency Shaping
Speaker Position Contour
Multi-Amp Configuration
Audison Thesis Advisor
Type
Size
Power
Handling
Crossover frequency
Slope
Thesis speaker set
Component Adjustment
Sound Control
ADVANCED MANUAL / THX
Technical Specifications
40
Esec_ADV THX Crossover Inglese_Layout 1 03/05/12 16:21 Pagina 40
37

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