Digital Designs DD 1515
b
DVC2-Variante mit 2x 2 Ohm Schwingspule
Heat Radiating Coil Former
Hand Assembled
SFB Cone
Multi-Spider Suspension
Free-Flow Cooling System
Carbon Fiber Dustcap Optional
EROM Surround
Rubber Magnet Boot
1500
Series
The 1500 Series woofers are based on the 35/95 series design
standards, bringing bass with power and authority to systems designed with
300-500 Watt RMS/per driver power levels.
The 1500 Series start with a
powerful motor design using a 50mm thick magnet section, thick steel plates with
12mm thick magnet gap. The motor design is topped off with machined cooling
vents from our Free Flow Cooling System pumping fresh air around the voice coil.
The voice coil uses the same grade wire as our 9500 Series, the same high
temperature capability and the same adhesives.
The surround uses our EROM
profile to give long, controlled excursion while keeping the cone diameter as
large as possible. This profile also saves mass over the sculpted rubber
surrounds and inner tube style surrounds, less mass makes ours louder and
faster. We developed new tri-laminated surround material which is highly elastic
and very tough, perfect for daily rugged use. The cone is our multi-fiber blend
designed for high strength and low weight, again, lighter is louder and
faster.
The suspension in a subwoofer takes a real pounding, so the 1500
Series uses proven materials from the 35/9500 Series. The most durable spider
materials are used in multi-spider arrangements in order to provide long but
controlled excursion. We laminate our lead wires between spider layers to
eliminate lead slap and broken lead wires. Our laminations cost more to produce,
take longer to make, and take longer to assemble. They are built with USA made
materials and tinsel lead, they are formed in the USA, cut, trimmed and
laminated into spider assemblies in-house. Making longer lasting speakers
doesn't happen by accident, it's a methodical and purposeful
endeavor.
All our subs are hand assembled, rigorously tested and
retested. We use multiple glue types and multiple glue joints for all attachment
points. We use the most electrically efficient connections, direct copper to
copper, the Direct Connect. Cosmetic options include real hand-laid Carbon Fiber
dustcaps, if so desired.
The 1500 Series subs are the real deal; high
quality subs at an affordable price that sound great while being as durable as
possible. We think you should be able to enjoy your system for years to come,
and then move your DDs to the next car you buy.
We recommend
to allow at least several weeks of playing time to break in DD Woofers, full
break in may take many months. DO NOT play subwoofers at max amplifier power in
the first couple of days, give the suspensions a chance to loosen up. As the
suspension breaks in, the subs will play lower and louder.
After you give the
woofers a chance to break in (you'll know when this happens because the woofers
will be playing lower and louder) you can start to look at port changes to alter
the sound to your personal taste and your vehicles acoustic loading
conditions.
SPECIFICATIONS
Series
1500
Voice Coil Diameter 2.0"
Magnet Weight
120 oz
Power Handling RMS/Peak
500/1800
Suspension 55 mm
Nominal Impedance
D4.0 Ohm
DC Resistance 3.4
Ohm
Model 1515
Rec Box (cubic ft)
4
Port Area (sq in) 64
Port Length (inches)
21
Woofer Diameter 15"
Free Air
Resonance 24 Hz
Sensitivity 89 dB
Shipping Weight 21 lbs
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