Philips FB 840 User manual

Philips FB 840 User manual
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PHILIPS
FB 830 - FB 840 - FB 850 - FB 860 Loudspeakers Ç
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INSTRUCTIONS FOR USE
INTRODUCTION
We would like to thank you for purchasing these loudspeakers
from the Philips range. These speakers have been developed
to produce superb sound for many years.
Please read this manual carefully before connecting your
speakers. You will find a number of tips for getting the best out
of these high-quality speakers.
CONNECTIONS FB830 AND FB840
Note!
Check that your amplifier is switched off.
Loudspeaker cable
+ Preferably use a special loudspeaker cable with a diameter
of at least 1.5 mm? (see also: 'ACCESSORIES").
* One of the two wires should be marked so that you can
distinguish between them.
* Strip off the insulation from the end of each of the two wires
(approx. 7 mm, see fig. 4)
Amplifier
* Atthe rear of the amplifier you will find a red or (+) terminal
and a black or (-) terminal for each loudspeaker (Left/Right).
* Connect the marked wire to the red or (+) terminal, and the
non-marked wire to the black or (-) terminal of the amplifier.
Loudspeakers
* Atthe rear of the loudspeakers you will find the screw
connectors, marked (+) and (-).
* Connect the marked wire to the (+) terminal, and the non-
marked wire to the (-) terminal of the loudspeaker (see fig. 1).
CONNECTIONS FB850 AND FB860
The loudspeakers can be connected in three different ways:
A. Conventional wiring;
B. Bi-wiring;
C. Bi-amplification.
A. Conventional wiring:
* Follow the connection instructions of the FB830 and FB840.
* You will find that you have four connectors at the back of
your loudspeakers and that the plus connectors and the
minus connectors are connected with a jumper.
B. Bi-wiring connection:
* This connection consists of two pairs of wires connected per
speaker, one carrying the bass signal, the other pair the
mid/high frequencies. This results in a lower dynamic
distortion and a more detailed sound picture.
* Connect the loudspeakers as in Figure 2 and make sure that
all the plusses and minusses are connected correctly.
* Make sure that you remove the metal jumpers from the
speaker terminals.
C. Bi-amplification connection:
* To improve the effect of bi-wiring, you may use two
amplifiers; one to drive only the bass speakers for left and
right and one amplifier to drive the mid/high speakers.
* Connect the loudspeakers according to figure 3.
* Make sure that the phasing is correct and here also do not
forget to remove the jumpers from the speaker terminals.
POWER HANDLING
All amplifiers used over a long period of time at high power
can produce distortions which may seriously damage your
speakers.
Your ears will tell you when this is the case. The speakers will
promptly indicate overloading by giving severe distortion.
In such case make sure that the tone contro! and the volume
are reduced to a level where the sound is acceptable again.
Remember:
Loudspeakers are most often damaged by being overdriven by
under-powered amplifiers.
English
POSITIONING
» The loudspeakers should be arranged so that, viewed from
the listener's position, the loudspeaker connected to the
‘Left’ terminals is on the left and the loudspeaker connected
to the ‘Right’ terminals is on the right in front of the listener
in the room. This can be checked with the balance control on
the amplifier.
+ The loudspeakers should be arranged as symmetrically as
possible in the room and at the same height.
The best height for listening when you are seated is when
the high tone speaker (tweeter) is at the height of your ears
while seated. For this purpose we developped stands for the
FB830, FB840 and FB850 (see: 'ACCESSORIES").
* The best stereo effect is obtained when the distance
, between the two loudspeakers is equal to the distance
between each of the loudspeakers and the listener, so that
the listener and the loudspeakers form an equilateral triangle
(see fig. 5).
+ Avoid positioning the loudspeakers in a corner as this causes
bass reproduction to be amplified too much.
Do not place any obstacles in front of the loudspeakers as
this affects the high tone reproduction, thus reducing the
stereo effect considerably. The listener should still be able to
‘see’ the loudspeakers.
Each room has different acoustic characteristics and the
positioning possibilities are often limited. You can find the
best position for your loudspeakers by experimenting.
ACCESSORIES
FV 130:
FV 150:
Loudspeaker stand for FB830 (packed in pairs).
Loudspeaker stand for FB840 and 850
(packed in pairs).
SBC 1310: High quality speaker cable, 6 m.
SBC 1311: High quality Bi-wiring, Bi-amping speaker cable, 6 m.
SBC 1315: Super high-grade speaker cable, 6 m.
SBC 1320: 4x banana with beryllium gold-plated contacts
(for use with SBC 1310/11).
SBC 1321: 4x banana with beryllium gold-plated contacts
(for use with SBC 1315).
NOTES
11
TECHNICAL SPECIFICATIONS
FB830 FB840 FB850 FB860
GENERAL
CONTINUOUS POWER: 100 Watt............e.—.e.......... 120 Watt.................. e... 120 Watt................— nene. 150 Watt... cnn
MUSIC POWER. .............. 150 Watt.................menccones 180 Watt..................... e... 180 Watt... 200 Watt...
AMPLIFIER
REQUIREMENTS............. 10 - 80 Watt cont. power.. 20 - 100 Watt cont. power 20 - 100 Watt cont. power 30 - 120 Watt cont. power
SYSTEM IMPEDANCE: ... 6 Ohm.................e...emm...—... 20) 111 6 Ohm.........—e.e=enereeenenneoa. 6 Ohm... e=eserieenn ea
SENSITIVITY:................. 87 dB ..............ee.enerineononneos 88 dB ess 88 dB coerce 88 dB oer ene
CROSSOVER
FREQUENCIES. ............... 650 Hz-7,000 Hz ............. 600 Hz - 7,000 Hz ............. 600 Hz- 6,000 Hz ............. 500 Hz - 5,000 Hz .............
FREQUENCY
RESPONSE: ...........emenones 43 Hz - 20,000 Hz.............. 38 Hz - 20,000 Hz............. 38 Hz - 24,000 Hz............. 32 Hz - 24,000 Hz .............
LOUDSPEAKER UNITS
WOOFER:..........e.onannanconcos 8 inch - coated .................. 2 Xx 7 inch - coated ............ 2 x 7 inch - coated ............ 2 x 8 inch - coated..........
MIDRANGE:............ memo. 4 inch - Glass fibre............ 4 inch - Glass fibre............ 4 inch - Glass fibre............ 51/4 inch - Glass fibre ........
TWEETER: .........e..oncosvecono 18 mm Supronyl dome..... 18 mM Supronyl dome ..... Iso-phase type ................. Iso-phase type ........ ....
ENCLOSURE
SYSTEM: ... ... 3-Way .........esconearncaoocecamrere SWAY ........cerecarererenonrenanenes 3-WAY ..…….……rronserenencencencanvass N .....енннненннненннко
DIMENSIONS
(B X WX D): .…………esssorsres 630 x 260 x 280 mm......... 860 x 260 x 330 mm......... 860 x 260 x 330 mm......... 1,000 x 280 x400 mm.......
VOLUME
INT./EXTERNAL. ............. 30/46 litre...............—..eemm... 48/70 litre............————emwcencmo 48/70 litre...............ew..m..ece. 83/120 litre...
MATERIAL CABINET: …… 19mm HZ. 19MM HZ. 19MM HZ... 19 mm HZ... ee
MATERIAL BAFFLE:........ MDF 30 mm ...........e....... MDF 30 mm ............—e.em.. MDF 30 mm ................—.... MDF 30 mm... 2...
LM LS] u Black/walnut foil ............... Black/walnut foll ............... Black/walnut foil ............... Black/walnut foil ...............
FRONT:............emnosenascoonenno Detachable cloth............... Detachable cloth............... Detachable cloth............... Detachable cloth...............
WEIGHT: . A e Y 2-2 Co PT + 19.5 KG. .............. nee... + 19.5 Kg. ...e..e...emmeneencenacoo + 28.5 Ка. ....e..cemnncnarnnenneoe.
CONNECTION: ................ Screw connectors............. Screw connectors............. Screw connectors, Screw connectors,
BI-WiFiNg.............. me... eneen. Bi-wiring/Gold Plated .......
ACCESORIES
STANDARD: ............c...o.. Directions for use ............. Directions for use ............. Directions for use. ............. Directions for use .............
OPTIONAL: ................e..... Stand FV 130 .................... Stand FV 150 ................... Stand FV 150 .............e-eee.e vorrerereranansa ren ea encens ea sen ras
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неее ен =
FB830/FB840/FB850/FB860
Printed in Belgium
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