Woofer: The Boston Acoustics HSi 4830 uses an 8" DCD
(Deep Channel Design) copolymer woofer with a die-cast aluminum basket. The DCD
woofer uses a deeply grooved pole plate that enables the voice coil to travel
farther for greater output without bottoming.
Directional Midrange and Tweeter: The 3-1/2" copolymer
midrange and 1" Kortec dome tweeter are mounted on an angled baffle, designed
to face the listening area. The entire speaker will rotate almost 360° within the
frame so the mid/tweeter baffle can be turned in any direction, even after the
speaker is mounted.
Kortec: The tweeter is a 1" Kortec dome. Kortec is a
silky fabric saturated on the underside with a proprietary stiffening agent.
Because the inside surface of the dome is ultra stiff, the tweeter tracks the
signal with ease and produces an excellent transient attack. Simultaneously,
the soft, self-dampening top layer eliminates unwanted resonance, so the sound
is smooth and articulate.
Moisture Resistant: The HSi 4830 is well suited for humid
environments like the kitchen or bathroom. Make sure they are positioned so
that moisture cannot collect inside them. They are not designed for locations
where they will be submerged.
Inputs: Spring loaded posts will accept banana plugs (single
or dual) or bare wire up to 12 gauge.
Installation: After a 10-7/8" diameter cutout is made
the speaker is installed into the opening and held in place with four integral
plastic mounting ears. The required depth to install the speaker is 6" from
the mounting surface (this includes the thickness of the drywall). Behind the
opening there must be a 1" clearance around the speaker to accommodate the
ears. The mounting wall material must be at least 3/8" thick for the mounting
ears to work.
Magnetic Grille: The grille is magnetically mounted for easy
Paintable: Both the frame and grille can be painted to match
the ceiling. A plastic paint mask is included to protect the speaker from being
painted as well.
Optional Bracket: The NCBR8 new-construction bracket (item
number 065NCBR8, sold
separately) can be used to simplify installation in new construction.
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