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The cabinet itself is manufactured in 25 mm veneered MDF board which in addition is braced internally and carefully dampened with

acoustic absorption foam. The surface of the foam has been furnished with a “honeycomb” pattern to give it the largest possible surface

area and hence maximise dampening of the sound emitted from the rear of the unit.

Installation

Placing

Placing speakers in a listening room is always a very critical operation, and therefore we have provided a few guidelines below, but we

also recommend that you experiment with the placing until 

you

 think the sound reproduction is perfect.

In general, placing a loudspeaker near a rear and/or side wall will boost the low frequency level but at the same time create reflections

in the midrange and treble area, which results in a deterioration of the stereo perspective.

Therefore, it is not possible to recommend one perfect placing in relation to the rear wall, as the optimum distance will depend very

much on the acoustics of the listening room. As a guideline for placing D 830, the optimum placing will be about 30-60 cm / 12 - 25 in.

from the rear wall, and for D 870 it will be about 50-100 cm / 20 - 40 in.

For both models, the distance to the side walls should be at least 1 m / 40 in.

In order to achieve optimum sound reproduction, the distance between the loudspeakers should be the same as the distance from either

loudspeaker to your preferred listening position (an equilateral triangle).

The loudspeakers might be angled slightly toward the listening position, to adjust the treble level to suit the room acoustics and your

taste. This will also ensure that the optimum listening position becomes less critical.

There should be no furniture or other “obstacles” between the speakers and the listening position.

NOTE: If you are also using the D 8 loudspeakers in a surround sound configuration, the loudspeakers may be placed as near as approx.

15 cm / 6 in. from the television set without any discoloration of the picture.

Recommended placing of D 870

Recommended placing of D 830

Also, D 830 should be placed at the proper listening height. For

this specific purpose we have manufactured Stand 60. Using this

stand will ensure that the loudspeakers are placed at the optimum

listening height.

Содержание D 870

Страница 1: ...Item no 69476 31 01...

Страница 2: ...4 1...

Страница 3: ...5 2 a...

Страница 4: ...6 3 b...

Страница 5: ...r 1 25 mm Power handling 120W 170W Frequency range 38 22 000 Hz Impedance 4 Ohm Dimensions 380x245x310mm 15 0x9 6x12 2in Weight 12 0 kg 26 5 lb 4 Specifications subject to technical changes Long Short...

Страница 6: ...D 830 D 870 Advanced Owner s Manual...

Страница 7: ...r thisisjustaresultofthefactthat eachpieceofgenuineveneerwillhaveitsownindividualfeatures andsinceitisanaturalmaterial youwillfindthatthecolourplayand the glow change as the loudspeakers are exposed t...

Страница 8: ...erebya high load capacity and partly to dampen undesired resonances The front baffle of the tweeter has been die cast in solid zinc which ensuresmaximummechanicalcontactwiththecabinetandaminimumamount...

Страница 9: ...factor Fortheimportantmidrangearea coils with air cores are used to eliminate hysteresis errors The crossover network is mounted directly on the solid 24K gold plated loudspeaker terminals to ensureth...

Страница 10: ...room As a guideline for placing D 830 the optimum placing will be about 30 60cm 12 25in from the rear wall and for D 870 it will be about 50 100 cm 20 40 in For both models the distance to the side w...

Страница 11: ...he wires from the and cables do not touch each other as a short circuit could damage the amplifier s outputstage Spikes Werecommendthatyouusetheenclosedspikes optionsuppliedwithD870 Stand60 Theseensur...

Страница 12: ...o the woofer When different amplifiers are used or 2 The two amplifiers are used for the left and right channels respectively i e the tweeter midrange units are connected to one channel on the amplifi...

Страница 13: ...rberation time It is obvious that a loudspeaker will sound different in these two rooms Therefore in the development of loudspeakers other than special measurement rooms Jamo also uses a room that com...

Страница 14: ...uch aboutreflectionsfromtheceilingwithoutaffectingthe aesthetics oftheroom whereasitiseasiertoreducereflectionsfromthefloor 1 Physically small loudspeakers should be placed on stands partly to obtain...

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