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gptkbp:instance_of
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gptkb:sound_system
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gptkbp:advertising
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marketed as high fidelity speaker.
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gptkbp:application
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home audio
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gptkbp:arcade_cabinet
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MDF
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gptkbp:availability
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discontinued
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gptkbp:cancellation_reason
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good sound isolation
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gptkbp:collectibility
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considered collectible
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gptkbp:color_options
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natural wood finish
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gptkbp:community
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active online forums
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gptkbp:compatibility
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compatible with various amplifiers
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gptkbp:connectivity
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wire connections
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gptkbp:cooking_method
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gptkb:textiles
removable grille
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gptkbp:crossover
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first-order crossover
3 k Hz
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gptkbp:design
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gptkb:Henry_Kloss
classic acoustic suspension design
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gptkbp:design_philosophy
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focus on natural sound reproduction
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gptkbp:dimensions
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14 x 9 x 10 inches
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gptkbp:driver
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8-inch woofer
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gptkbp:finish
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wood veneer
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gptkbp:frequency
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50 Hz to 20 k Hz
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gptkbp:historical_significance
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pioneered acoustic suspension technology
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https://www.w3.org/2000/01/rdf-schema#label
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AR-4x loudspeaker
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gptkbp:impedance
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8 ohms
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gptkbp:influence
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influenced later speaker designs
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gptkbp:interior_features
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sealed
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gptkbp:legacy
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popular in the 1970s
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gptkbp:listening_experience
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immersive listening experience
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gptkbp:manufacturer
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gptkb:Acoustic_Research
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gptkbp:market
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consumer electronics
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gptkbp:market_position
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available from third-party suppliers
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gptkbp:notable_feature
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high-quality sound reproduction
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gptkbp:position
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ideal for bookshelf placement
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gptkbp:power_consumption
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25 watts RMS
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gptkbp:price_range
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mid-range
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gptkbp:production_years
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1969 to 1975
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gptkbp:related_products
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gptkb:AR-3a_loudspeaker
AR-2ax loudspeaker
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gptkbp:replaced_by
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AR-4xa loudspeaker
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gptkbp:responds_to
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smooth treble response
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gptkbp:reviews
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well-reviewed by audio enthusiasts
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gptkbp:sensitivity
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87 d B
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gptkbp:social_media
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1-inch dome tweeter
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gptkbp:sound
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warm and rich
wide soundstage
tight bass response
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gptkbp:target_audience
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audiophiles
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gptkbp:tweeter_design
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soft dome tweeter
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gptkbp:type
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bookshelf speaker
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gptkbp:user_manual
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available online
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gptkbp:user_reviews
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generally positive
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gptkbp:weight
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12 pounds
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gptkbp:woofers
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treated paper cone
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gptkbp:year_established
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gptkb:1969
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gptkbp:bfsParent
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gptkb:Acoustic_Research
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gptkbp:bfsLayer
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7
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