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Nominal size
Frame material
Cone & dome material
Surround
Coil size & type
Magnet weight
Gap flux density
Top plate thickness
Optimum working range
Thiele Small parameters
Effective cone diameter
Re
Fs
Qms
Qes
Qts
Mms
Cms
Vas
BL
170mm 6.5"
Aluminium
Tri-lam glass/carbon
srbp Single roll
25mm Al; 2 Layer
557g
0.77T
6mm
40Hz- 1000Hz
140mm
14.5Ω
52.16Hz
3.12
0.73
0.59
15.71gm
0.59mm/N
19.62L
10.09
170mm 6.5"
Aluminium
Tri-lam glass/carbon
srbp Single roll
25mm Al; 2 Layer
347g
0.77T
6mm
40Hz- 1000Hz
140mm
3.4Ω
64.34Hz
5.25
0.85
0.73
16.68gm
0.37mm/N
12.14L
5.21
170mm 6.5"
Aluminium
Tri-lam glass/carbon
srbp Single roll
25mm Al: 4 Layer
557g
0.77T
6mm
40Hz- 1000Hz
140mm
3.4Ω
37Hz
4.74
0.51
0.46
23.87gm
0.76mm/N
25.26L
6.12
200mm 8"
Aluminium
Tri-lam glass/carbon
srbp Single roll
38mm Al; 4 Layer
920g
1.1T
6mm
25Hz- 800Hz
165mm
3.6Ω
26.20Hz
3.28
0.42
0.37
38.01gm
0.97mm/N
61.96L
7.33t/m
200mm 8"
Aluminium
Woven carbon fibre
srbp Single roll
38mm Al: 2 Layer
920 g
1.1T
6mm
25Hz- 800Hz
165mm
3.6Ω
31.96Hz
2.93
0.4
0.35
28.11gm
0.88mm/N
56.42L
7.15t/m
Opus² Tri-Centre Opus² 1Opus² M2Opus² M1 & AvOpus² Tri-Surround
Parameter
Nominal size
Frame material
Cone & dome material
Surround
Coil size & type
Magnet weight
Gap flux density
Top plate thickness
Optimum working range
Thiele Small parameters
Effective cone diameter
Re
Fs
Qms
Qes
Qts
Mms
Cms
Vas
BL
200mm 8"
Aluminium
Woven carbon fibre
srbp Single roll
38mm Al: 2 Layer
920 g
1.1T
6mm
25Hz- 800Hz
165mm
7.2Ω
34.90Hz
2.87
0.65
0.53
24.31gm
0.80mm/N
54.62L
7.71t/m
200mm 8"
Aluminium
Woven carbon fibre
srbp Single roll
38mm Al: 2 Layer
920g
1.1T
6mm
25Hz- 800Hz
165mm
7.2Ω
32.88Hz
2.61
0.78
0.6
25gm
0.94mm/N
59.84L
6.91t/m
250mm 10"
Aluminium
Woven carbon fibre
srbp Single roll
38mm Al: 2 Layer
920g
1.1T
6mm
25Hz- 500Hz
200mm
7.2Ω
51.70Hz
4.31
1.19
0.93
31.76gm
0.30mm/N
41.13L
7.91t/m
250mm 10"
Aluminium
Woven carbon fibre
srbp Single roll
38mm Al: 2 Layer
920g
1.1T
6mm
25Hz- 500Hz
200mm
7.2Ω
40.26Hz
4.47
1.13
0.9
33.05
0.47mm/N
65.17L
7.29t/m
Opus² 2 Bass Mid Opus² 3 Bass
Opus² 3 Bass Mid
Opus² 2 Bass
Parameter
Bass Drive Unit Specifications
Opus²
28
Positioning Stereo Loudspeakers
Opus² M1 and M2
The M1 and M2 are designed for stand mounting. The
Opus Stand has been specifically designed to optimise their
performance. As an alternative the M1 and M2 may be
wall mounted on rigid brackets or placed on rigid shelves.
Ideally the top of the speaker should be at ear level to a
seated listener. If the rear panels of the speakers are placed
close to the walls the amount of bass will be increased but
the clarity may well suffer - you should experiment until you
get the best result.
The distance between the speakers should be the
same as between you and the speakers.
The table below shows the ideal
distance your model should be
from the wall
300mm
: 200mm
300mm
: 100mm
: 100mm
up to 100 mm
#
#
#
#
#
#
Opus² M1:
Opus² M2
OPus² 1 :
OPus² 2
OPus² 3
Opus² Subwoofers:
If the loudspeakers are placed too close to the walls the bass will increase but may be boomy and indistinct. If the loudspeakers are
placed further away from the walls, the inward angle ("toe in") may be increased by up to 40%, although this may restrict the width
of the optimum listening position. As personal taste plays a large role, experiment with different configurations and play a wide
range of programme before finalising the position of your speakers.
See Table
700mm
2-4 metres
1
5
°
-
4
0
°
5
º
-
3
0
º
Angle speakers inwards for a more precise
stereo image
Opus²
9
11


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