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FBT elettronica SpA
Via Paolo Soprani 1 - Zona Ind.le Squartabue - 62019 RECANATI - ITALY
Operating Manual
Tel. 071 750591 - Fax. 071 7505920 - email: info@fbt.it - www.fbt.it
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ARCHON
THE ARCHON SERIES
WARNINGS
DESCRIPTION
ACCESSORIES
INSTALLATION - warnings
INSTALLATION MODES
CONNECTIONS
ROTATABLE HORN
GLOSSARY
1
2
3/4/5/6/7/8/9/10
11/12/13/14
15
16/17/18/19
20/21/22/23/24/25
26
27
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THE ARCHON SERIES
The new ARCHON series includes a vast range of 2-way passive speakers for permanent installations: three models with
possibility of full-range or bi-amp configuration; three compact models with full-range configuration, two 2x8” and 2x15”
subwoofers.
Beyond the classic black and white, availability of a vast range of colours and finishes: gloss, matt, rough texture, etc.
The elegant speaker design, the high sound quality and extremely clear voice play perfectly suit any type of environment:
restaurants, shopping malls, pubs, theatres, conference rooms, museums, etc. with the possibility, upon demand, to be
adjusted for open-air installations as well.
1
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2
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DESCRIPTION
7.08 inch
11.81 inch
ARCHON
7.08 inch
> 2-way passive sound reinforcement system
> 0.47" baltic birch plywood cabinet
> Custom designed LF woofer, made in Italy
> Custom designed HF dome tweeter, made in Italy
> 4 x Euroblock speaker terminals
> Multiple M5 threaded rigging points
> Acoustically transparent steel grille and antidust protection cloth
> New FBT rotatable logo badge following vertical or horizontal
installation
> Optional mounting hardware
> 50W optional line transformer
105
CONFIGURATION
RECOMMENDED AMPLIFIER
SYSTEM LONG TERM POWER
SYSTEM SHORT TERM POWER (IEC 268-5)
TRANSFORMER (optional)
NOMINAL IMPEDANCE
FREQUENCY RESPONSE
LOW FREQUENCY WOOFER
AES POWER
HIGH FREQUENCY DRIVER
AES POWER
SENSITIVITY
MAXIMUM SPL (cont / peak) (bi-amp)
DISPERSION
CROSSOVER FREQUENCY
RECOMMENDED HP FILTER
RECOMMENDED EXTERNAL FILTER
INPUT CONNECTORS
NET DIMENSIONS
NET WEIGHT
TRANSPORT DIMENSIONS
TRANSPORT WEIGHT
2 way
200W RMS
100W
400W
100V / 50W
8 Ohm
70Hz - 22kHz (@-6dB)
5" - coil 1.25"
70W
1" - coil 1"
20W
89dB (@1W, 1m)
112dB / 115dB
110° (H x V)
3kHz
60Hz - 24dB oct
----------
4 x euroblock
7.08 inch x 11.81 inch x 7.08 inch (W x H x D)
8,8 lb
10.23 inch x 14.96 inch x 10.23 inch (W x H x D)
13,2 lb
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ARCHON
8.50 inch
106
14.17 inch
DESCRIPTION
8.50 inch
> 2-way passive sound reinforcement system
> 0.47 baltic birch plywood cabinet
> Custom designed LF woofer, made in Italy
> Custom designed HF dome tweeter, made in Italy
4 x Euroblock speaker terminals
>
> Multiple M5 threaded rigging points
> Acoustically transparent steel grille and antidust protection cloth
> New FBT rotatable logo badge following vertical or horizontal
installation
> Optional mounting hardware
> 100W optional line transformer
CONFIGURATION
RECOMMENDED AMPLIFIER
SYSTEM LONG TERM POWER
SYSTEM SHORT TERM POWER (IEC 268-5)
TRANSFORMER (optional)
NOMINAL IMPEDANCE
FREQUENCY RESPONSE
LOW FREQUENCY WOOFER
AES POWER
HIGH FREQUENCY DRIVER
AES POWER
SENSITIVITY
MAXIMUM SPL (cont / peak) (bi-amp)
DISPERSION
CROSSOVER FREQUENCY
RECOMMENDED HP FILTER
RECOMMENDED EXTERNAL FILTER
INPUT CONNECTORS
NET DIMENSIONS
NET WEIGHT
TRANSPORT DIMENSIONS
TRANSPORT WEIGHT
2 way
300W RMS
150W
600W
100V / 100W
8 Ohm
60Hz - 22kHz (@-6dB)
6.5" - coil 1.5"
120W
1" - coil 1"
20W
91dB (@1W, 1m)
116dB / 119dB
100° (H x V)
2.5kHz
45Hz - 24dB oct
----------
4 x euroblock
8.50 inch x 14.17 inch x 8.50 inch (W x H x D)
12,1 lb
11.81 inch x 17.32 inch x 11.81 inch (W xH x D)
16,5 lb
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DESCRIPTION
9.76 inch 9.76 inch
16.18 inch
ARCHON
> 2-way passive sound reinforcement system
> 0.47 baltic birch plywood cabinet
> Custom designed LF woofer, made in Italy
> Custom designed HF dome tweeter, made in Italy
4 x Euroblock speaker terminals
>
> Multiple M5 threaded rigging points
> Acoustically transparent steel grille and antidust protection cloth
> New FBT rotatable logo badge following vertical or horizontal
installation
> Optional mounting hardware
> 100W optional line transformer
108
CONFIGURATION
RECOMMENDED AMPLIFIER
SYSTEM LONG TERM POWER
SYSTEM SHORT TERM POWER (IEC 268-5)
TRANSFORMER (optional)
NOMINAL IMPEDANCE
FREQUENCY RESPONSE
LOW FREQUENCY WOOFER
AES POWER
HIGH FREQUENCY DRIVER
AES POWER
SENSITIVITY
MAXIMUM SPL (cont / peak) (bi-amp)
DISPERSION
CROSSOVER FREQUENCY
RECOMMENDED HP FILTER
RECOMMENDED EXTERNAL FILTER
INPUT CONNECTORS
NET DIMENSIONS
NET WEIGHT
TRANSPORT DIMENSIONS
TRANSPORT WEIGHT
2 way
350W RMS
175W
700W
100V / 100W
8 Ohm
55Hz - 22kHz (@-6dB)
8" - coil 1.5"
150W
1.5" - coil 1.5"
35W
92.5dB (@1W, 1m)
118dB / 121dB
90° (H x V)
2kHz
40Hz - 24dB oct
----------
4 x euroblock
9.76 inch x 16.18 inch x 9.76 inch (W xH x D)
14,3 lb
12.99 inch x 19.33 inch x 12.99 inch (W x H x D)
18,7 lb
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ARCHON
12.59 inch
110
DESCRIPTION
12.79 inch
21.65 inch
> 2-way passive sound reinforcement system
> 0.6" baltic birch plywood cabinet
> B&C custom designed high excursion LF woofer
> B&C custom designed HF compression driver
> Full-range / Bi-amp crossover networks with protection
> 1 x 4 Euroblock terminal speaker connector
> 2 x Neutrik NL-4 speakon connectors
> 12 x M10 threaded rigging points
> 2 x metal flange threads for "U" bracket wall mount
> Acoustically transparent steel grille and antidust protection cloth
> Rear pocket handle
> 35mm top hat for speaker stand
> New FBT rotatable logo
> Optional mounting hardware
> 200W optional line transformer
CONFIGURATION
RECOMMENDED AMPLIFIER
SYSTEM LONG TERM POWER
SYSTEM SHORT TERM POWER (IEC 268-5)
TRANSFORMER (optional)
NOMINAL IMPEDANCE
FREQUENCY RESPONSE
LOW FREQUENCY WOOFER
AES POWER
HIGH FREQUENCY DRIVER
AES POWER
SENSITIVITY
MAXIMUM SPL (cont / peak) (bi-amp)
DISPERSION
CROSSOVER FREQUENCY
RECOMMENDED HP FILTER
RECOMMENDED EXTERNAL FILTER
INPUT CONNECTORS
NET DIMENSIONS
NET WEIGHT
TRANSPORT DIMENSIONS
TRANSPORT WEIGHT
2 way
700W RMS
350W
1400W
100V / 200W
8 Ohm
60Hz - 18kHz (@-6dB)
10" - coil 2.5"
300W
1" - coil 1.7"
50W
97dB (@1W, 1m)
125dB / 129dB
80° x 50° (H x V)
1.8kHz
45Hz - 24dB oct
digital with presets
4 x euroblock - 2 x speakon NL4
12.59 inch x 21.65 inch x 12.79 inch (W x H x D)
33 lb
16.53 inch x 25.59 inch x 16.53 inch (W x H x D)
37,4 lb
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DESCRIPTION
14.37 inch 14.96 inch
25.98 inch
ARCHON
> 2-way passive sound reinforcement system
> 0.6" baltic birch plywood cabinet
> B&C custom designed high excursion LF woofer
> B&C custom designed HF compression driver
> Full-range / Bi-amp crossover networks with protection
> 1 x 4 Euroblock terminal speaker connector
> 2 x Neutrik NL-4 speakon connectors
> 12 x M10 threaded rigging points
> 2 x metal flange threads for "U" bracket wall mount
> Acoustically transparent steel grille and antidust protection cloth
> Rear pocket handle
> 35mm top hat for speaker stand
> New FBT rotatable logo
> Optional mounting hardware
> 300W optional line transformer
112
CONFIGURATION
RECOMMENDED AMPLIFIER
SYSTEM LONG TERM POWER
SYSTEM SHORT TERM POWER (IEC 268-5)
TRANSFORMER (optional)
NOMINAL IMPEDANCE
FREQUENCY RESPONSE
LOW FREQUENCY WOOFER
AES POWER
HIGH FREQUENCY DRIVER
AES POWER
SENSITIVITY
MAXIMUM SPL (cont / peak) (bi-amp)
DISPERSION
CROSSOVER FREQUENCY
RECOMMENDED HP FILTER
RECOMMENDED EXTERNAL FILTER
INPUT CONNECTORS
NET DIMENSIONS
NET WEIGHT
TRANSPORT DIMENSIONS
TRANSPORT WEIGHT
2 way
1000W RMS
500W
2000W
100V / 300W
8 Ohm
50Hz - 18kHz (@-6dB)
12" - coil 3"
400W
1.4" - coil 2.5"
80W
99dB (@1W, 1m)
129dB / 133dB
70° x 50° (H x V)
1.6kHz
40Hz - 24dB oct
digital with presets
4 x euroblock - 2 x speakon NL4
14.37 inch x 25.98 inch x 14.96 inch (W x H x D)
48,5 lb
20.86 inch x 33.85 inch x 20.86 inch (W x H x D)
53 lb
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ARCHON
17.12 inch 16.57 inch
115
DESCRIPTION
29.13 inch
> 2-way passive sound reinforcement system
> 0.6" baltic birch plywood cabinet
> B&C custom designed high excursion LF woofer
> B&C custom designed HF compression driver
> Full-range / Bi-amp crossover networks with protection
> 1 x 4 Euroblock terminal speaker connector
> 2 x Neutrik NL-4 speakon connectors
> 12 x M10 threaded rigging points
> 2 x metal flange threads for "U" bracket wall mount
> Acoustically transparent steel grille and antidust protection cloth
> Rear pocket handle
> 35mm top hat for speaker stand
> New FBT rotatable logo
> Optional mounting hardware
> 300W optional line transformer
CONFIGURATION
RECOMMENDED AMPLIFIER
SYSTEM LONG TERM POWER
SYSTEM SHORT TERM POWER (IEC 268-5)
TRANSFORMER (optional)
NOMINAL IMPEDANCE
FREQUENCY RESPONSE
LOW FREQUENCY WOOFER
AES POWER
HIGH FREQUENCY DRIVER
AES POWER
SENSITIVITY
MAXIMUM SPL (cont / peak) (bi-amp)
DISPERSION
CROSSOVER FREQUENCY
RECOMMENDED HP FILTER
RECOMMENDED EXTERNAL FILTER
INPUT CONNECTORS
NET DIMENSIONS
NET WEIGHT
TRANSPORT DIMENSIONS
TRANSPORT WEIGHT
2 way
1000W RMS
500W
2000W
100V / 300W
8 Ohm
48Hz - 18kHz (@-6dB)
15" - coil 3"
400W
2" - coil 2.5"
80W
100dB (@1W, 1m)
130dB / 134dB
60° x 40° (H x V)
1.3kHz
35Hz - 24dB oct
digital with presets
4 x euroblock - 2 x speakon NL4
17.12 inch x 29.13 inch x 16.57 inch (W x H x D)
63,9 lb
20.86 inch x 33.85 inch x 20.86 inch (W x H x D)
68,3 lb
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DESCRIPTION
11.22 inch
ARCHON
18.89 inch
THE ARCHON 208S IS NOT EQUIPPED WITH INTERNAL PASSIVE
CROSSOVER; A CONNECTION TO THE POWER UNIT WITHOUT
PROCESSOR WILL DAMAGE THE SPEAKERS.
208S
21.65 inch
CONFIGURATION
RECOMMENDED AMPLIFIER
SYSTEM LONG TERM POWER
SYSTEM SHORT TERM POWER (IEC 268-5)
TRANSFORMER (optional)
NOMINAL IMPEDANCE
FREQUENCY RESPONSE
LOW FREQUENCY WOOFER
AES POWER
HIGH FREQUENCY DRIVER
AES POWER
SENSITIVITY
MAXIMUM SPL (cont / peak) (bi-amp)
DISPERSION
CROSSOVER FREQUENCY
RECOMMENDED HP FILTER
RECOMMENDED EXTERNAL FILTER
INPUT CONNECTORS
NET DIMENSIONS
NET WEIGHT
TRANSPORT DIMENSIONS
TRANSPORT WEIGHT
> Passive subwoofer with bass-reflex enclosure
> 2 x 8" custom made high excursion woofer
> 5/8 birch plywood enclosure
> Two pocket handles
> 2 x Speakon NL-4 connectors
1 way
600W RMS
300W
1200W
---------8 Ohm
50Hz - 500Hz (@-6dB)
2 x 8" - coil 2"
150W
----------
---------95dB (@1W, 1m)
129dB / 132dB half-space
omnidirectional
external active
40Hz - 24dB oct
digital with presets
2 x speakon NL4
21.65 inch x 11.22 inch x 18.89 inch (W x H x D)
39,6 lb
27.16 inch x 14.56 inch x 24.60 inch (W x H x D)
44 lb
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ARCHON
35.43 inch
215S
DESCRIPTION
19.09 inch
25.19 inch
THE ARCHON 215S IS NOT EQUIPPED WITH INTERNAL PASSIVE
CROSSOVER; A CONNECTION TO THE POWER UNIT WITHOUT
PROCESSOR WILL DAMAGE THE SPEAKERS.
CONFIGURATION
RECOMMENDED AMPLIFIER
SYSTEM LONG TERM POWER
SYSTEM SHORT TERM POWER (IEC 268-5)
TRANSFORMER (optional)
NOMINAL IMPEDANCE
FREQUENCY RESPONSE
LOW FREQUENCY WOOFER
AES POWER
HIGH FREQUENCY DRIVER
AES POWER
SENSITIVITY
MAXIMUM SPL (cont / peak) (bi-amp)
DISPERSION
CROSSOVER FREQUENCY
RECOMMENDED HP FILTER
RECOMMENDED EXTERNAL FILTER
INPUT CONNECTORS
NET DIMENSIONS
NET WEIGHT
TRANSPORT DIMENSIONS
TRANSPORT WEIGHT
Passive subwoofer with bass-reflex enclosure
>
2 x 15" custom made high excursion woofer
>
birch plywood enclosure
> 3/4
> Four FBT design aluminum handles
>
2 x Speakon NL-4 connectors
1 way
2000W RMS
1000W
4000W
---------4 Ohm
35Hz - 500Hz (@-6dB)
2 x 15" - coil 3"
500W
----------
---------101dB (@1W, 1m)
139dB / 142dB half-space
omnidirectional
external active
28Hz - 24dB oct
digital with presets
2 x speakon NL4
35.43 inch x 19.09 inch x 25.19 inch (W x H x D)
110,2 lb
39.4 inch x 20.8 inch x 31.5 inch (W x H x D)
132,3 lb
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ACCESSORIES
ARCHON
ARCHON speakers can be installed as follow:
> Suspension by wall bracket ( 110 / 112 / 115 / 208S )
> Installation on tripod stand
( 110 / 112 / 115 )
> Installation with adjustable wall support ( 105 / 106 / 108 )
> Simple stack installation ( 208S / 215S )
The ARCHON speakers use only with FBT mount for wall installation.
USE WITH OTHER MOUNTS IS CAPABLE OF RESULTING IN INSTABILITY CAUSING POSSIBLE INJURY.
14.1 inch
110
8.77 inch
2.75 inch
12.8 inch
AC-U110H
4.46 inch 4.46 inch
21.92 inch
2.75 inch
8.99 inch
8.99 inch
AC-U110V
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ARCHON
112
ACCESSORIES
9.76 inch
16.53 inch
2.75 inch
5.37 inch
14.68 inch
AC-U112H
5.37 inch
2.75 inch
26.29 inch
11.18 inch 11.18 inch
AC-U112V
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ACCESSORIES
19.68 inch
ARCHON
115
10.94 inch
2.75 inch
17.4 inch
AC-U115H
6.73 inch 6.73 inch
29.4 inch
2.75 inch
12.73 inch 12.73 inch
AC-U115V
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ARCHON
AC-W568
105 / 106 / 108
ACCESSORIES
2.75 inch
2.36 inch
ARCHON
AC-W208
208S
ACCESSORIES
BRACKET ON SPEAKER
WALL BRACKET
7 inch 7 inch
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15
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Bracket fixing holes
M10
VERTICAL INSTALLATION
M6
161718
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ARCHON
SUSPENDED SUBWOOFER INSTALLATION
208S
INSTALLATION MODES
BRACKET ON SPEAKER
WALL BRACKET
14.17 inch
> Carefully choose the area where speakers will be installed, making sure that the structure can support cabinet's weight.
> Remove the 4 speaker's feet and fix the two brackets using the 4 M8 screws provided.
> Secure the 2 brackets to the wall using all the fixing holes available.
> Lock the two speaker's brackets to the two wall brackets and tighten the M3 safety screw.
BRACKET ON SPEAKER
M8 SCREW
WALL BRACKET
M3 SAFETY SCREW
M3 SAFETY SCREW
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INSTALLATION MODES
INSTALLATION ON TRIPOD STAND
ARCHON
> Make sure that the stand can bear speaker's
weight
> Place the stand on a flat and antislip surface
> Widen stand base as much as possible to
increase its stability
STACK INSTALLATION
Subwoofer on the ground and the relevant
satellite on it.
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CONNECTIONS
The ARCHON series 105 / 106 / 108 models can be setup in constant impedance or constant voltage mode thanks to an
optional line transformer.
CONSTANT VOLTAGE LINE
Connect a conductor from the speaker terminal marked with “COM” to the 100V line in the amplifier terminal marked with “-“,
“0”, “COM”.
Connect the other conductor, choosing between “HI” and “LO” depending on the desired power, to the 100V line in the
amplifier terminal marked with “100V”, “+”.
ARCHON
105 / 106 / 108
ARCHON
LO
HI
COM NC NC
CONSTANT IMPEDANCE CONNECTION
NOT ALLOWED on 100V lines.
Connect a conductor from the speaker terminal marked with “COM” to the amplifier terminal marked with “-”.
Connect a conductor from the speaker terminal marked with “8 Ohm” to the amplifier terminal marked with “+”.
105
8Ω
ARCHON
COM NC NC
105
8Ω
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ARCHON
105 / 106 / 108
CONSTANT VOLTAGE LINE
CONNECTIONS
POWER AMP.
200W
ARCHON
105
LOCOM
HI
ARCHON
COM
105
LO
HI
ARCHON
COM
105
LO
HI
ARCHON
COM
105
LO
HI
ARCHON
LO
COM NC NC
HI
105
8Ω
50W 50W 50W 50W
CONSTANT IMPEDANCE CONNECTION
IN CH1 IN CH2
POWER AMP.
350W
OUT
CH1
ARCHON
COM
OUT
CH2
108
8 Ohm 8 Ohm
ARCHON
COM
108
OUT 2
OUT 1
DSP
ARCHON
ARCHON
COM NC NC
IN L
IN R
208S
108
8Ω
8 Ohm 8 Ohm
Overall
impedance 4 Ohm
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CONNECTIONS
ARCHON
The ARCHON series 110 / 112 / 115 models can be setup in FULL-RANGE or BI-
AMP mode.
For work mode selection refer to page 51.
The FULL-RANGE mode allows connection through Speakon connectors (1+ / 1-)
or terminal board with constant impedance (8Ohm) and 100V voltage.
BI-AMP mode only allows to use Speakon connectors (1+ / 1- LF) (2+ / 2- HF)
CONSTANT VOLTAGE LINE
Connect a conductor from the speaker terminal marked with “COM” to the 100V
line in the amplifier terminal marked with “-“, “0”, “COM”.
Connect the other conductor, choosing between “HI” and “LO” depending on the
desired power, to the 100V line in the amplifier terminal marked with “100V”, “+”.
110
110 / 112 / 115
112
115
CONSTANT IMPEDANCE CONNECTION
NOT ALLOWED on 100V lines.
Connect a conductor from the speaker terminal marked with “COM” to the amplifier
terminal marked with “-”.
Connect a conductor from the speaker terminal marked with “8 Ohm” to the
amplifier terminal marked with “+”.
Speakon connectors are connected in parallel mode. One connector can be used
to connect the box to the output of a power amplifier, the other to connect to a
second box.
Loudspeaker cables shall have the adequate diameter, depending on the overall
lenght of the connection. The resistance introduced by an inadequate wiring
towards the loudspeakers would reduce both the power output and the damping
factor of the loudspeaker.
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ARCHON
ARCHON 110 / 112 / 115 loudspeakers are equipped with a crossover operating mode selector ( X-OVER MODE SELECTOR ). The
crossover models are either FULL-RANGE or BI-AMP.
In FULL-RANGE mode the loudspeaker is driven by a single amplifier and the internal crossover splits the audio frequency spectrum into
two bands, feeding lower frequencies to the woofer and higher frequencies to the HF unit.
Using BI-AMP mode makes it possible to obtain the maximum performance from the drivers by using two amplifiers, one for the woofer and
one for the HF unit. In this case the internal crossover is inhibited so that all filtration and, if necessary, equalisation of the drivers must be
performed externally.
WARNING: the drivers are not protected in this mode so, to avoid the risk of damaging the drivers, it is essential to comply with the
prescription concerning maximum power, cut-off frequencies and the slopes of the external electronic filter.
To obtain the maximum performance in BI-AMP mode we recommend using a speaker system digital processor with appropriate settings for
the crossover, limiter, equalizer and delay to achieve temporal alignment between woofer and HF unit.
* 2 hours, pink noise with crest factor 2,
applied RMS voltage corresponding to
the power on the minimum of the
module of the impedance of the speaker
in full range mode, or of the driver in biamp mode.
The table shows the power outputs, measured in accordance with the AES standard, that are acceptable by the loudspeaker in FULLRANGE mode or by the individual drivers in BI-AMP mode.
All the drivers are tested with a crest factor of 2; to obtain this value, equalling a 6dB dynamics between average and peak value, an amplifier
with twice the RMS power indicated in the table shall be used. The amplifier recommended by FBT permits obtaining at least a 6dB dynamics
in high SPL applications to keep a high sound quality.
WARNING: the recommended amplifier makes it possible to exploit the full dynamic potential of the loudspeakers to obtain the maximum
sound quality and SPL, but it does not guarantee the protection of the speakers in any condition of use; in the case of a highly
compressed music program or if the amplifier is driven to clipping levels the drivers may be damaged due to overheating or excessive cone
excursion.
For music programs with reduced dynamics and pronounced distortion it is advisable to use an amplifier with an RMS output that is equal to
or lower than the value given in the table to avoid exceeding the heat dissipation capacity of the drivers. In any event, driving the amplifier in
clipping mode results in a substantial rise in the power supplied to the HF unit, which may therefore be damaged despite tripping of the
protection in the internal crossover in FULL-RANGE mode.
110 / 112 / 115
CONNECTIONS
OPERATING MODE SELECTOR
A
FULL-RANGE
(PASSIVE)
B
C
1) Remove the eight fixing screws (A) from the connection panel.
2) Move the connector (B) to the position of the desired mode
3) Push the connector deep down to guarantee safe securing
4) Mount the connection panel back again
5) Check speaker proper configuration through the opening (C)
BI-AMP
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CONNECTIONS
ARCHON
208S / 215S
THE ARCHON 208S / 215S ARE NOT
EQUIPPED WITH INTERNAL PASSIVE
CROSSOVER; A CONNECTION TO THE
POWER UNIT WITHOUT PROCESSOR WILL
DAMAGE THE SPEAKERS.
IN L
IN CH2
OUT CH2
OUT 2
ARCHON
208S
IN R
DSP
STEREO OUT CONNECTION
POSITIVE OUT
TO SPEAKER
NEGATIVE OUT
Speakon connectors are connected in parallel mode. One connector can be used to connect the box to the output of a power
amplifier, the other to connect to a second box.
Loudspeaker cables shall have the adequate diameter, depending on the overall lenght of the connection. The resistance
introduced by an inadequate wiring towards the loudspeakers would reduce both the power output and the damping factor of
the loudspeaker.
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ARCHON
The ARCHON series 110 / 112 / 115 models feature a constant directivity rotatable horn.
The constant directivity horn permits getting a response whose frequency is almost constant in every direction covered by horn operation
and a balanced sound timbre emission over the whole coverage angle.
Horn rotation changes the dispersion angle so as to use the speakers in horizontal position or when they are aligned in an array.
To change horn coverage angle:
> Remove the 4 screws fixing the front mesh and remove it.
> Unscrew horn fixing screws and rotate it to the desired position (never extract the horn unit from the speaker).
> Tighten the horn fixing screws again and place the mesh back.
HORN COVERAGE ANGLE
110 / 112 / 115
ROTATABLE HORN
ARCHON
110
80°
50°
ROTATED HORN COVERAGE ANGLE
ARCHON
110
50°
80°
ARCHON
50°
ARCHON
70°
70°
50°
112
112
ARCHON
40°
ARCHON
60°
115
60°
115
40°
ARCHON
50°
100°
110
DISPERSION ANGLE WITH
ALIGNED SPEAKERS AND ROTATED HORN
ARCHON
40°
80°
115
26
ARCHON
50°
100°
112
Page 29
GLOSSARY
AMPLIFIER CLASS
Power amplifiers are mainly classified according to the type of output stage. Such classification is based on how long output devices remain
active during each cycle. The most common classes of professional sound amplifiers are: AB, AB+B, D, G, H.
CLIPPING
Digital distortion occurring when the amplitude of an input signal to a sampling device exceeds the dynamic range that the same device can
manage.
DYNAMICS, dynamic range
The dynamic range of a sound is the ratio between the strong and powerful part of that sound and its soft and light part; it is measured in dB.
DISPERSION
It represents the actual speaker behaviour during operation, indicating how this "disperses" sound in space. Dispersion is indicated through
an angle referred to the speaker's emission centre.
PHASE
Considering given waves with different waveforms and frequencies, they are told to be "in phase" if they cross the time axis with the same
slope at the same time. Otherwise, they are told to be "out-of-phase". The phase is a very important element of sound waves since it is
essential to establish the result of the addition of several waves; for instance, two identical sounds with opposite phases cancel out.
DAMPING FACTOR
The damping factor is generally conceived of as an indicator of how much "sustained" the sound of a sub speaker dedicated amplifier will be.
The peaker main element is a voice coil, mounted in a magnetic field; while the coil moves within the magnetic field, voltage is induced
through it; if speaker resonant modes are not properly controlled by the amplifier, speaker output low sounds may be too "reverberating". As
far as its measurement is concerned, the damping factor is the ratio between speaker impedance and amplifier output impedance.
ARCHON
HP FILTER, high pass filter
A high pass filter comprises an electric circuit only allowing the passage of frequencies over a given value called "cut-off frequency". It can be
either active or passive depending on the presence in the circuit of active elements such as amplifiers or of just passive ones. It is used also
to adjust a clear sound for tweeter, middle frequencies, etc.
PINK NOISE
The noise is said to be pink, as opposed to the white noise. It is a non periodic noise, which includes frequencies from the whole acoustic
spectrum. However, unlike the white noise, it has higher amplitude at low frequencies and lower amplitude at high frequencies, so to adjust
to the human ear sensitivity, that is less sensitive to lower frequencies.
RMS
Root Means Square: it is a value expressing the significant mean of the amplitude values of a sound wave.
SPL
Perceived sound volume or pressure, measured in decibels. The SPL is a function of signal amplitude.
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CODE 36768#09-2012
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