Audison Thesis THX Series Setup guide

www.audison.eu
THX
ADVANCED
MANUAL
CROSSOVER
Rev. b
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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
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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
electronic 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
crossovers 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
system;
- 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
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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
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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
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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 4,2x38mmcross headed,
self-tapping fixing screws
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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
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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
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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
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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
BC
A
10
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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
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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
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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
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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
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ADVANCED MANUAL / THX 2
THX 2
THX 2 Modifications on the single components
Insert the supplied 1,0 µF
capacitor
Replace the 6,8Ω resistor originally
mounted with a 5,6Ω one supplied
with the product
Replace the supplied resistors
originally mounted following the
diagram on page 10
A
C
B
15
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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 4,2x38mmcross headed,
self-tapping fixing screws
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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
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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
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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
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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
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