DD2500a

Welcome to the world of DIGITAL DESIGNS, where you'll never have to settle for mass-produced, cookie cutter, marketing machine excuses for woofers. Our subwoofers are unique in today's audio environment, subwoofers not punched out by automated machines but designed and hand assembled to be the best performing speakers you can buy. All the components of our subs are the results of over 20 years of continuous development and 20 years of customer feedback.

We don't subscribe to the Good, Better, Best product model where a person has to buy the top of the line product to access better quality. Every speaker is built to high-end, state of the art standards, designed for specific long term power handling needs. Our lower power handling subs are built with far better materials than the so-called high end subs of the marketing powers.

Our products might cost a little more than mass automation products, but we are building you the best that money can buy and our customers are worth it. We spend more money building them, we spend more time making them and we spend more time helping our customers. Let us custom craft your next speakers, you deserve it.

The 2500 'a' Series subwoofers were designed to extract the highest performance from today's power crazy car audio systems. High powered sound systems require high power subs that are built to handle the load. The 2500s match up well with the 500-800 Watt RMS amps driving a single woofer, or the 1000-1600 Watt RMS amps driving a pair.

Optimum performance requires a unique blend of design parameters/materials for these subs to hit hard, sound great and last a long time. The motor uses dual 25mm thick magnets sandwiched between 12mm thick, machined steel plates. Internal cooling vents from our Free Flow Cooling System keep fresh air circulating around the voice coil.

DD developed a radical new coil design, The RadCoil, for our Z Series subs; a coil with a built-in heat sink and a series of cooling radiators to move heat away from the coil wire and be dissipated through the Free Flow Cooling System. The voice coil uses the same high temperature wire and adhesives as our 9500 Series. The 2.5" voice coil diameter has sufficient surface area to handle the long term heat buildup while low enough in mass to keep high efficiency.

The surround uses our EROM profile, copied en masse to become an industry wide standard. The EROM design gives 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 is louder and faster.

The cone is our multi-fiber synthetic blend, the same type of fiber used in the highest power handling concert drivers, not punched out from bleach bottle plastic. These special cones are designed for the highest strength with the lowest weight, again, lighter is louder and faster.

The suspension in a subwoofer takes real abuse, so the 1500 Series uses proven materials from the 35/9500 Series. DD introduced the world to laminated lead wires over 15 years ago. We found that long excursion drivers performed better with the tinsel lead wires sandwiched between spider layers to eliminate lead slap and broken lead wires. The DD spiders are formed with USA made cloth and tinsel-lead in our proprietary tooling. We then trim and laminated the spiders into model specific assemblies in-house. Making longer lasting speakers doesn't happen by accident, it's a methodical and purposeful endeavor.

We developed the most electrically efficient connections, the Direct Connect, one of the latest DD innovations to be copied the world over. Our 10 gauge power cable provides perfect copper to copper twisted connections. Direct Connect allows virtually any gauge and number of speaker wires to be connected without signal loss.

The 2500 Series subs are the perfect choice for systems stepping up in long term power requirements while outperforming other brands top-of-the-line subs at a fraction of the cost.

SPECIFICATIONS
Series 2500a
Voice Coil Diameter 2.5"
Magnet Weight 160 oz
Power Handling RMS/Peak 750/3000
Suspension 80 mm
Nominal Impedance  D4.0 Ohm / D2.0 Ohm
DC Resistance D3.6 Ohm
Model 2510a 2512a 2515a
Rec Box (cubic ft) 1.5 2.5 4
Port Area (sq in) 24 40 64
Port Length (inches) 23 22 21
Woofer Diameter 10" 12" 15"

Free Air Resonance

27 Hz 26 Hz 25 Hz
Qts   0.36  
Qes   0.397  
Qms   4.16  
Vas   77L  
Sensitivity 87 dB 88 dB 90 dB
Shipping Weight 23 lbs 24 lbs 26 lbs

Welcome to the world of DIGITAL DESIGNS, where you'll never have to settle for mass-produced, cookie cutter, marketing machine excuses for woofers. Our subwoofers are unique in today's audio environment, subwoofers not punched out by automated machines but designed and hand assembled to be the best performing speakers you can buy. All the components of our subs are the results of over 20 years of continuous development and 20 years of customer feedback.

We don't subscribe to the Good, Better, Best product model where a person has to buy the top of the line product to access better quality. Every speaker is built to high-end, state of the art standards, designed for specific long term power handling needs. Our lower power handling subs are built with far better materials than the so-called high end subs of the marketing powers.

Our products might cost a little more than mass automation products, but we are building you the best that money can buy and our customers are worth it. We spend more money building them, we spend more time making them and we spend more time helping our customers. Let us custom craft your next speakers, you deserve it.

The 2500 'a' Series subwoofers were designed to extract the highest performance from today's power crazy car audio systems. High powered sound systems require high power subs that are built to handle the load. The 2500s match up well with the 500-800 Watt RMS amps driving a single woofer, or the 1000-1600 Watt RMS amps driving a pair.

Optimum performance requires a unique blend of design parameters/materials for these subs to hit hard, sound great and last a long time. The motor uses dual 25mm thick magnets sandwiched between 12mm thick, machined steel plates. Internal cooling vents from our Free Flow Cooling System keep fresh air circulating around the voice coil.

DD developed a radical new coil design, The RadCoil, for our Z Series subs; a coil with a built-in heat sink and a series of cooling radiators to move heat away from the coil wire and be dissipated through the Free Flow Cooling System. The voice coil uses the same high temperature wire and adhesives as our 9500 Series. The 2.5" voice coil diameter has sufficient surface area to handle the long term heat buildup while low enough in mass to keep high efficiency.

The surround uses our EROM profile, copied en masse to become an industry wide standard. The EROM design gives 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 is louder and faster.

The cone is our multi-fiber synthetic blend, the same type of fiber used in the highest power handling concert drivers, not punched out from bleach bottle plastic. These special cones are designed for the highest strength with the lowest weight, again, lighter is louder and faster.

The suspension in a subwoofer takes real abuse, so the 1500 Series uses proven materials from the 35/9500 Series. DD introduced the world to laminated lead wires over 15 years ago. We found that long excursion drivers performed better with the tinsel lead wires sandwiched between spider layers to eliminate lead slap and broken lead wires. The DD spiders are formed with USA made cloth and tinsel-lead in our proprietary tooling. We then trim and laminated the spiders into model specific assemblies in-house. Making longer lasting speakers doesn't happen by accident, it's a methodical and purposeful endeavor.

We developed the most electrically efficient connections, the Direct Connect, one of the latest DD innovations to be copied the world over. Our 10 gauge power cable provides perfect copper to copper twisted connections. Direct Connect allows virtually any gauge and number of speaker wires to be connected without signal loss.

The 2500 Series subs are the perfect choice for systems stepping up in long term power requirements while outperforming other brands top-of-the-line subs at a fraction of the cost.

SPECIFICATIONS
Series 2500a
Voice Coil Diameter 2.5"
Magnet Weight 160 oz
Power Handling RMS/Peak 750/3000
Suspension 80 mm
Nominal Impedance  D4.0 Ohm / D2.0 Ohm
DC Resistance D3.6 Ohm
Model 2510a 2512a 2515a
Rec Box (cubic ft) 1.5 2.5 4
Port Area (sq in) 24 40 64
Port Length (inches) 23 22 21
Woofer Diameter 10" 12" 15"

Free Air Resonance

27 Hz 26 Hz 25 Hz
Qts   0.36  
Qes   0.397  
Qms   4.16  
Vas   77L  
Sensitivity 87 dB 88 dB 90 dB
Shipping Weight 23 lbs 24 lbs 26 lbs

 

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