Quality and reliability are top priorities at D+S.
The Foundation Series Wedge Shape:
All but our center and rear speakers of our Foundation
have the D+S trademark wedge shape as seen to the
right. The baffle (front) panel is angled in toward the listener
providing many advantages. The stereo image is widened and improved
by direct on-axis radiation. This is why we angle our speakers
toward us in the first place. Radiation from the sides of our head
toward our ears, rather than toward our face also improves imaging
and spaciousness. A set of headphones would be the extreme example
of this. Radiating sound away from room boundaries and at an angle
to opposing boundaries reduces the blurring effects of excessive
reflections and standing waves in the room. And nonparallel panels
in the cabinet reduce internal standing waves and colorations of
sound from the cabinet. Also, the baffle corners of all our
products are smoothly rounded to reduce high frequency
diffraction effects. As you can see, our cabinets were designed
with the physics of sound in mind, not just flashy appearances.
Computer Optimized Design:
All our products are optimally designed using sophisticated
computer software and hardware. A new design begins in our
Simulation and Modeling Department, "The S&M Lab"
Here, we can virtually see and test a speaker and its theoretical
crossover for numerous physical and electrical qualities before a
tool is ever raised. Then prototypes are built and tested in our
anechoic chamber, "The Dead Room"
. Refinements are
made to both cabinet and crossover until the speaker meets our
strict standards. Then the prototype moves on to
for further listening tests.
When a design is complete, products are built and fully assembled
a crossover network. We believe the crossover is the
heart (and brain) of the speaker. So we custom build each crossover
to match each speaker using our own proprietary
We start with computer measurements of both frequency response and impedance
sweeps of each of the speaker's driver sections (lowpass, bandpass and
highpass). We then import this real
data into computer optimizing
software to design the perfect crossover. This software blends all the
driver components together into a seemless musical experience. Complex
responses and driver loads are flatted to near perfection.
Mass produced speakers (nearly all other companies) simply cannot
afford the time and expense we put into our products - and yet our
prices are still very competitive!
All of our products are built to last a lifetime. D+S cabinets use thick
medium density fiberboard (MDF) and all internal seams are reinforced with
glue-block bracing. Our larger systems use horizontal shelves spanning
the entire cross-section of the enclosure positioned between each woofer.
All this bracing ensures rock solid, room shaking bass without unwanted
cabinet vibrations coloring the sound. There are no assembly line
procedures used at D+S. All our systems are built by hand by audiophiles
who love what they do.
All of our products can be finished from a large selection of 24
different colors. All finishes are hand stained and lacquered
real wood veneers. We never use cheap vinyl covering. This is yet
another reason why we stand above the rest of the crowd in the
loudspeaker business. Our products are made to be high-end pieces
of furniture as well as high-end audio.
Click here to see our finish selections.
All of our products use only the finest drivers found in the
world. The 12" woofers employ an extra heavy magnet and vented
motor assembly, an extended pole for maximum magnetic energy, a
thick polypropylene cone and a durable butyl rubber surround.
Bass from these woofers is smooth, tight and very deep.
The 5-1/2" midranges use a superior "composite sandwich" cone for
extra stiffness and superb linearity. Add to this an extra heavy
magnet and a "distortion killer" short circuiting ring attached to
the pole piece. The punch
of a snare drum and the
of brass are like you've never heard before!
The 1.1" treated soft dome tweeters use a compact, vented Neodymium
magnet system coupled to a large rear air chamber for a low
resonant frequency. Do not let their size fool you. They exceeded
all our expectations. Using small-frame tweeters allows us to
"pack" our drivers tighter together on the baffle. This is great
for point-source imaging rather than smearing the signal across a
larger surface area. Together, the seamless integration of
these units is ultimately musical.
Our Crossovers with EDC™:
All of our products employ computer optimized crossover filters
that are designed with our proprietary
These crossovers are custom tuned to each speaker. In addition, the
impedance of each driver network (woofers, midranges and tweeters),
is flattened and controlled with one or more stabilizing circuits.
These circuits provide consistent loads and minimal phase for the
crossover and greatly eases the complexity of the load on your
amplifier. These extra networks are expensive and are simply NOT
found in conventional loudspeakers. Even the inductors in these
networks are configured to maximize heat dissipation and eliminate
electromagnetic crosstalk. Only the most advanced hexagonally wound
inductors, fast metallized polyproylene capacitors and cement
wirewound resistors are used in our crossover networks. The result
is pure, clean audio.
Gold Plated Connections:
All of our speakers are terminated with gold plated binding posts.
Connections can be made using dual or single banana plugs, spade
connectors, straight pins or bare wire up the 8 gauge thick. We
also supply high quality 12 gauge, oxygen-free copper speaker wire
of any length equipped with dual banana plug connectors.
Made in the U.S.A.
All Contents Copyright © 1989-2018,
D+S Tech Labs, Inc.
Our systems are designed, built and tested by hand in the U.S.A.
We take tremendous pride in the quality and durability of our systems.
All Rights Reserved