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Measurement and Analysis-1
Opus²
These actual test plots exemplify the stringent standards of acoustical measurement and performance in Opus² loudspeakers.
Opus² -M1: Vertical Directivity
Opus² -M1: Horizontal Directivity
Very smooth response near boundary (200mm)
Impressive decay time and absence of resonances
Linear studio standard frequency response
Very linear dispersion to 12 kHz over a 90 degree axis
Ultra-linear tweeter response
Very low measured distortion at 100dB at 1 metre
Remarkably similar dispersion oh both axes due to our unique drive unit configuration with central tweeter placement
Opus² -M2: Near-Wall Response
Opus² -1: Axial Response 0;30,45º
Opus² -1: Spectral Decay
Opus² -2: Frequency ResponseOpus² -3: 2nd and 3rd HD
Opus² -3: Frequency Response
34
Unpacking the Opus² 1,2 &3
If your floor is at all vulnerable, protect the floor surface with a cloth or towel.
Carefully remove each loudspeaker from its packing carton. Be especially careful when
removing the polythene bag. The speakers come with the plinth complete and already
fitted. The carton top says, “Open other end”. So you:
– Open the bottom
– Remove polystyrene
– Open bag containing speaker
– Tape the carton flaps back
– Turn over carton with loudspeaker still inside
– Lift carton off, leaving loudspeaker standing on the floor
– Be careful not to damage soft floor surfaces with spikes
Lift out the polystyrene packing pieces and unpack the loudspeakers being careful not to
lift the loudspeakers out with the polythene bags. Remove the polythene bags.
The AV speakers are packed as a system with two AVS satellites and one AVC centre
loudspeaker.
– Lift the grille carton out
– Unwrap the grilles and place them on the loudspeakers.
Before proceeding, protect the floor surface with a cloth or towel. The stands are packed
facing each other. Lift each stand out from the packing and then invert it so that the
spikes are on the floor.
Open the carton and remove all the top packing pieces. Lift the subwoofer out taking
care not to damage the cabinet. When lifting the unit from the carton support it from the
bottom. DO NOT attempt to lift the subwoofer out of the carton using the polythene bag.
The unit is heavy; if you cannot manage it easily, get someone to assist you.
Unpacking the Opus² M1, M2, AV, Tri-Centre & Tri-Surround
Unpacking the Opus² Stands
Unpacking the Opus² SW250,300 and 380 Subwoofers
Opus speakers are heavy. Take care when
removing them from their packaging. Enlist the
help of a friend if necessary
Always take care when
lifting heavy objects. Lift
the speakers out by their
sides.
If possible, keep the packaging in
case you need to move or return
your speakers. If you dispose of the
packing, do so with regard to all
recycling regulations in your area.
Safely Unpacking Your Loudspeakers
Opus²
3
5


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