OK tack!
Tekniska data alltså.
Jag fyller på med vad som står i broschyren.
Det kan säkert finnas intresse för detta.
Det gäller då förståss OA-51 original.
OA-51 specifikations.
Frequency range:
-3db at 42 Hz and 18 kHz when positioned with back against a wall (32 Hz – 20 kHz according to DIN).
Frequence respons:
The direct frequency response is measured using a sine tone and in free sound field with the measuring microphone placed in the median plane of the drive units and at a height of 0.2m above the plane extending from the bottom of the loudspeaker and at a minimum distance of 1m from the loudspeaker, and is flat within +- 2 db from 300 Hz to 17 kHz. The response below 300 Hz is attenuated to counterbalance the increase in efficiency caused by a reflecting wall directly behind the loudspeaker.
Distortion:
At a nominal input of 5 W, corresponding to a sound level of 94 db at 1m from the loudspeaker in a free sound field, the total harmonic distortion between 300 and 7,000 Hz is less than 0.4%, with the exception of occasional peaks at 2 to 3 Hz approaching 0.8%.
Sensivity:
87 db (1W, 1m).
Impedance:
hm nominal (not less than
hm from 5 Hz upwards) with phase angle not exceeding +- 28degree.
Power handling capacity:
100W undistored music programme.
Dimensions:
Width: 430mm (720mm incl. absorbent panel and connecting plug).
Height: 296mm (302mm incl. front cover).
Depth: 248mm (276mm incl. front cover).
Weight:
11kg each.
Finishes:
Walnut, rosewood and black ash veneer as well as white laquer are standard finishes. Other finishes are available on request.
Units of delivery:
The OA-51 system is supplied in mirror image pairs of matched veneer.
Carlsson Ortho-Acoustic Systems
Factory & Scandinavian sales:
Box 35
S-568 00 Skillingaryd
Sweden
International sales:
The Town House
High Street
Chobham, Surrey GU24 8AF
England
Övriga rubriker i broschyren.
Huvudrubrik med inledande text.
The loudspeaker and the listening room.
Förklarande underrubriker.
The ambiguity of loudspeaker frequency response curves.
The loudspeaker and the listening room.
Frequency response curves that vary with direction make early room reflections cause tonal distortion.
OA-51.
Nearby room boundaries cause distortion of frequency and time response of loudspeakers.
OA-51.
Approaching a flat frequency response curve in loudspeakers.
Suitable amounts of reflected sound in the listening room benefit tonal and spatial perceptions.
The loudspeakers may use the listening room to help the hearing decipher the ambience of the recording.
Construction characteristics of the OA-51.
The drive units.
The cabinet.
The crossover network.
The input terminals.
Broschyr 2 tar upp.
The OA-51 loudspeaker from Carlsson.
Improving the bass and midrange definition.
Maintaining the integrity of musical sounds.
Opening a new stereophonic scene.
Form follows function.
The acoustics of the listening room.
The associated components.
Conventional approach to tonal balace in loudspeakers and recordings.
Scientific approach towards perfection in tonal balance.
The benefit of tone controls.
av Densen » 2008-09-11 20:11 
