Digital Designs DD 1515 DVC 4

Digital Designs DD 1515 b
DVC4-Variante mit 2x 4 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