Infinity PRIMUS 250 Bedienungsanleitung
Owner’s Guide
Primus 250
Primus 360
Primus C25
PRIMUS SPEAKER SYSTEMS
Primus 250/360/C25 OM 4/4/03 3:24 PM Page 3
INFINITY PRIMUS™SERIES
The Primus series of loudspeakers continues Infinity’s longstanding
commitment to accurate sound reproduction.Our proprietary Metal
Matrix Diaphragm (MMD™) drivers,precision dividing networks,and
rigid,well-braced enclosures combine to deliver uncompromised
performance in any stereo or multichannel home theater system.
In addition,Primus series speakers are magnetically shielded for
safe placement adjacent to a television.
UNPACKING THE SPEAKERS
If you suspect damage from transit,report it immediately to your dealer.
Keep the shipping carton and packing materials for future use.
PLACEMENT
Stereo
Before deciding where to place your Primus speakers,survey your room
and think about placement,keeping the following points in mind,using
Figure 1 as a guide:
•For best results,place the speakers 6'–8' apart.
•Position each speaker so that the tweeter is approximately at ear level.
•Generally,bass output will increase as the speaker is moved closer to a
wall or corner.
•Refer to the“HomeTheater”section if you also plan to use the speakers
for home theater reproduction.
Figure 1.Experiment with speaker placement to obtain the
best bass level and stereo imaging in your room.
HomeTheater
For front-channel use,place one speaker on the left and another on the
right,along either side of the television monitor.Since the speakers are
magnetically shielded,you can place them without worrying about the field
distorting theTV picture.
Forrear-channel use,place Primus bookshelf speakers on bookshelves or
stands – or Primus floorstanding speakers on the floor – alongside the
listening position.Final placement depends on room acoustics,availability
of space,and your listening preference (Figure 2).
The center channel speaker should be placed on top of or directly below
the television and aimed toward the listening area.
NOTE:An Infinity powered subwoofer will add impact and realism to both
music and film soundtracks.Contact your Infinity dealer for recommenda-
tions on subwoofer models for your application.
Figure 2.This overhead view shows a typical home theater plan.
Figure 3.This figure shows an alternate layout,which may be more
suitable for some rooms.
Couch
Left
Front
Channel
Left
Surround
Channel
Right
Surround
Channel
Right
Front
Channel
Center
Channel
Infinity Subwoofer
(optional)
Couch
Left
Front
Channel
Left
Surround
Channel
Right
Surround
Channel
Right
Front
Channel
Center
Channel
Infinity Subwoofer
(optional)
Listening Position
Left
Channel Right
Channel
2PRIMUS SPEAKER SYSTEMS
Primus 250/360/C25 OM 4/4/03 3:24 PM Page 4
3
PRIMUS SPEAKER SYSTEMS
+–
Receiver or
Amplifier
(rear view)
Speaker (rear view)
– +
(one channel shown)
REDBLACK
Figure 4.This example shows how to connect bare wires to the terminals.
WIRING THE SYSTEM
IMPORTANT:Make sure all equipment is turned off before making any
connections.
For speaker connections,use a minimum #16-gauge speaker wire with
polarity coding.The side of the wire with a ridge or other coding is
usually considered positive polarity (i.e.,+).
NOTE: If desired,consult your local Infinity dealer about speaker wire and
connection options.
The speakers have coded terminals that accept a variety of wire connec-
tors.The most common connection is shown in Figure 4.
To ensure proper polarity,connect each +terminal on the back of the
amplifier or receiver to the respective +(red) terminal on each speaker,
as shown in Figure 5.Connect the –(black) terminals in a similar way.
See the owner’s guides that were included with your amplifier,receiver
and television to confirm connection procedures.
IMPORTANT: Do not reverse polarities (i.e.,+ to–or –to +) when
making connections.Doing so will cause poor imaging and diminished
bass response.
Figure 5.Wiring diagram shows polarity connections for one channel of a
stereo or home theater system.
FINAL ADJUSTMENTS
Check the speakers for playback,first by setting the system volume con-
trol to a minimum level,and then by applying power to your audio system.
Play a favorite music or video segment and increase the system volume
control to a comfortable level.
NOTE:You should hear balanced audio reproduction across the entire
frequency spectrum.If not,check all wiring connections or consult
the authorized Infinity dealer from whom you purchased the system
for more help.
The amount of bass you hear and the stereo-image quality will be affected
by a number of different factors,including the room’s size and shape,
the construction materials used to build the room,the listener’s position
relative to the speakers,and the position of the speakers in the room.
Listen to a variety of music selections and note the bass level.If there is
too much bass,move the speakers away from nearby walls.Conversely,if
you place the speakers closer to the walls,there will be more bass output.
Nearby reflecting surfaces can adversely affect stereo-imaging quality.If
this happens,try angling the speakers slightly inward toward the listening
position until the optimum effect is achieved.
CARE OF YOUR SPEAKER SYSTEM
Each Primus series cabinet has a wood-grain-vinyl finish that does not
require any routine maintenance.When needed,use a soft cloth to remove
any fingerprints or dust.
Clean the grille by gentle vacuuming.
NOTE: Do not use any cleaning products or polishes on the cabinet
or grille.
Primus 250/360/C25 OM 4/4/03 3:24 PM Page 5
© 2003 Harman International Industries,Incorporated
Infinity Systems,250 Crossways Park Drive,Woodbury,NY 11797 USA 800.553.3332 (USA only) www.infinitysystems.com
Infinity is a registered trademark,and Infinity Primus and MMD are trademarks,of Harman International Industries,Incorporated.
Part No.406-000-01536 4/03
SPECIFICATIONS Primus 250 Primus 360 Primus C25
Frequency Range: 49Hz – 20,000Hz (±3dB) 38Hz – 20,000Hz (±3dB) 80Hz – 20,000Hz (±3dB)
Recommended
Amplifier Power Range: 10 – 150 watts 10 – 200 watts 10 – 150 watts
Sensitivity: 92dB 93dB 90dB
(2.83V @ 1 meter)
Nominal Impedance: 8Ω8Ω8Ω
Crossover Frequency: 2500Hz;24dB/octave 350Hz,3300Hz;24dB/octave 3000Hz;24dB/octave
Low-Frequency Driver: Dual 5-1/4" (130mm) MMD,™Dual 6-1/2" (165mm) MMD,™Dual 5-1/4" (133mm) MMD,™
magnetically shielded magnetically shielded magnetically shielded
Mid-Frequency Driver: N/A 4" (100mm) MMD,™N/A
magnetically shielded
High-Frequency Driver: 3/4" (19mm) MMD, 3/4" (19mm) MMD, 3/4" (19mm) MMD,
magnetically shielded magnetically shielded magnetically shielded
Dimensions (H xW x D): 35-1/2”x 7-3/8”x 11-3/4” 39" x 8-1/4"x 13" 7-5/8" x 17-1/2"x 9-5/8"
(with grille) (900mm x 187mm x 300mm) (990mm x 208mm x 330mm) (187mm x 444mm x 245mm)
Weight: 35.3 lb (16kg) 48.5 lb (22kg) 17.6 lb (8kg)
Infinity continually strives to update and improve existing products,as well as create new ones.The specifications and construction details in this and related Infinity publications are therefore
subject to change without notice.
Declaration of Conformity
We, Harman Consumer International
2, route de Tours
72500 Chateau-du-Loir
France
declare in own responsibility that the products described
in this owner’s manual are in compliance with technical
standards:
EN 50081-1:1992
EN 50082-1:1997
Robin Marshall
Harman Consumer International
Chateau-du-Loir, FRANCE 4/03
Primus 250/360/C25 OM 4/4/03 3:24 PM Page 2
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