ULTRA SPEAKER FEATURES & SPECIFICATIONS
ULTRA SURROUND
Frequency Response and Electro-Acoustic Data:
• Rated bandwidth: 58 Hz-32 kHz (± 3 dB).
• Nominal impedance: 8 ohms.
• Sensitivity: 87 dB (2.83V @ 1 meter full-space, 300-3kHz).
• Recommended amplifier power: 20-250 watts
Loudspeaker Physical Description:
• Dual Baffle Surround Loudspeaker
• Dimensions (HxWxD): 14" x 12.3" x 5.4", 35.6 x 31.2 x 13.7 cm.
• Weight: 18 lbs., 8.1 kgs.
• Dual independent gold-plated 5-way binding posts.
• Cloth grille with pin/cup retention system.
• Aluminum wall mounting bracket with safety catch feature to help prevent inadvertent
removal.
Driver Array and Technical Highlights:
• 1" tweeter features FEA-optimized diffuser and aluminum dome.
• 5.25" woofer features composite glass-fiber cone, aluminum shorting ring, cast aluminum
basket and vented voice coil former.
Unique Surround Sound Operating Modes:
• Bipole mode (both sets of drivers in phase).
• Dipole mode (both set of drivers out of phase).
• Duet mode (each set of drivers receives a discrete signal, creating two separate speakers
within one cabinet).
• Duet mode allows true 7-channel surround sound with just one pair of surround speakers.
SoundMatch Crossover Network:
• 2-way crossover with premium-grade capacitors, air-core inductors and heavy-trace
printed circuit boards.
• Dual isolated crossover networks allows for bipole, dipole or unique Duet mode.
• Crossover frequency and slopes optimized for outstanding total radiated sound power.
• Tweeter-to-woofer crossover: 2 kHz.
Cabinet Construction Technical Highlights:
• Non-parallel cabinet panels reduces axial standing waves within the cabinet, reducing
frequency response coloration.
• Acoustically transparent and FEA optimized grilles, wedge-shaped front baffle and
flush-mounted drivers all contribute to reduced edge diffraction and improved on-axis high
frequency response.
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