Demand Series Bookshelf Loudspeakers: The Definitive Technology Demand
Series D9 high-performance bookshelf loudspeakers deliver full-range,
room-filling sound and precise imaging in a modern, elegant styling. Featuring
technology advancements to both Definitive's aluminum dome tweeter and
midrange/woofer sections, these speaker deliver an unrivaled sweet spot,
smoother high-frequency reproduction, and three-dimensional imaging for a
technically-advanced, premium bookshelf listening experience.
1" Aluminum Dome Tweeter: The 1" annealed aluminum tweeter is
precision engineered to articulate nuance and detail in the high-frequency bands
for a crystal-clear listening experience. Offsetting the tweeter by 5° delivers
a more precise center stereo image by eliminating undesirable symmetric
diffraction off the corners of the front baffle.
- 20/20 Wave Alignment Lens: Coupled with Definitive's new 20/20
Wave Alignment Lens, the 1" annealed aluminum dome tweeter delivers smoother
high frequency response and improved dispersion for a rich and balanced
- Linear Response Waveguide: A patented Linear Response Waveguide
extends both on and off axis frequency response, while improving dispersion
for more natural mid-range timbre and more precise imaging.
Note: Because the tweeters are offset, the
bookshelf speakers are labeled for left (L) and right (R) on back of the
5.25" BDSS (Balanced Double Surround System) Midrange/Woofer: A patented
5.25" Balanced Double Surround System (BDSS) polypropylene midrange/woofer provides greater
excursion and output that results in superior midrange detail and punchier bass
compared to drivers of similar size. The speaker's balanced double surrounds
support the cone at two points to provide better mechanical stability for
longer, more linear excursion, and improved damping to suppress cone resonance.
Passive Bass Radiator: A top-mounted oval 5" x 9" passive bass radiator in each
bookshelf speaker produces superior low-end extension. Plus, the addition of a larger
spider reduces rocking and increases linearity for deep, tight, clean bass
Hand Crafted Cabinet: The speaker cabinets are constructed from MDF
with an extruded natural bead-blasted aluminum front baffle. The cabinets are
hand-crafted, meticulously sanded, painted with five layers of premium black
gloss paint, and then buffed for a near-mirror finish (Level 6) for an
uncompromising look in your home.
Acoustically Transparent Magnetic Grille: Each bookshelf loudspeaker
also comes with an acoustically transparent black magnetic grille. The included
acoustically transparent magnetic black speaker grilles provide natural,
uncolored sound when placed on the speaker, and remove easily when you want to
enjoy looking at them fully uncovered.
Gold-Plated, Dual Binding Posts: Each bookshelf speaker
has two sets of gold-plated, 5-way binding posts connected by jumper-straps. The
gold-plated binding posts will accept bare wire (up to 10AWG), pin connectors,
spade-lugs, & banana plugs (single or dual). Using the dual posts, you can
bi-wire or bi-amp the speakers. Bi-wiring or bi-amping the speaker provides
improved bass & treble performance.
- Bi-Wiring: Bi-wiring can provide noticeable
improvements in the overall transparency of your loudspeakers. Run separate
speaker wires to the low & high frequency drivers from a single amplifier
(the upper set of binding posts are for the high frequency drivers; the
lower set of binding posts are for the low frequency drivers).
- Bi-Amping: Bi-amping allows you to use separate
amplifiers for the high & low frequency sections of your loudspeaker for
greater dynamic range & lower distortion. We recommend that your separate
amplifiers have identical gain to preserve the speaker's voicing balance.
- If you decide to bi-wire or bi-amp, you must remove the
jumper-straps between the terminal posts on both speakers (failure to do
this could result in damage to your amplifier and loudspeakers).
- In order to use banana plugs, you must completely unscrew
the binding-post terminals and remove the rubber caps. Once you have removed
the rubber caps, you can fully screw down the binding-post terminals and
connect your banana plugs (sold separately).
Mounting Options: The Demand Series D9 bookshelf speakers
can simply be placed on a speaker stand, desk, table or shelf. Definitive offers
a speaker stand (735DST1, sold separately) specifically designed for the Demand
Series bookshelf speakers. Integrated rubber pads on the bottom of the speakers
provide stability and protection. You can use the Pinpoint side-clamping
brackets (sold separately - see Accessories tab) to wall mount the speakers.
Note: This speaker does not offer a threaded insert or
keyhole slot for wall-mounting.
Placement: The D9 bookshelf loudspeakers and your main
listening position should be setup in an equilateral triangle that measures
7-10' from each speaker and the listening position. The speakers should be
placed approximately 2-6' from side walls and 2-4' from back walls. The speakers
should be mounted as close to ear level as possible with the listening position. Toeing the speakers in slightly, toward your listening area will
provide stronger stereo imaging.