DD Audio - True To The Source
Known colloquially as Digital Designs, DD Audio is a company that prefers not to over-complicate things. Put succinctly it's most happy pursuing it's goal of creating the finest audio products possible, dedicating itself to enhancing the performance of its already highly esteemed products no matter the lengths required. Established way back in 1986, DD Audio has designed and manufactured products for every facet of the audio industry. Whether it be mobile, marine, home, professional, industrial or OEM applications; you bring your problem and DD Audio will supply the solution.

A company that prides itself on being a genuine American design and manufacturing company, DD Audio continues to hand build the best subwoofers in the world at its Oklahoma City headquarters in the USA. No expense is spared when it creates its stellar products, with it employing only the highest quality components available to ensure maximum product performance and longevity.

C Series – Faithful Reproduction
When dealing with musical reproduction in your car of course accuracy and linearity are important, however the absolute imperative element is faithful realism. The C series have been developed specifically to underscore the importance of realism when reproducing realistic music. By creating specific products to match different styles of music; the C series drivers easily produce the raw energy and emotion of any performance, as they accurately recreate the sensation of being right there in the front row!

Design Ideologies
The newly revised C series components are made to deliver an exquisite, in-the-studio listening experience. These components would be at home in any high-end audio setup, but with their carefully engineered, space-saving, universal fitment they are an ideal choice for transforming your vehicle cabin into a sonic sanctuary.

High Fidelity At Every Level
Aiming for quality at every level, DD Audio’s engineering team spent over two years developing and tooling these state-of-the-art drivers. Surpassing the excellence of offerings previous, without going beyond the previous price points. The result is an authentic audiophile-grade component set that is accessible to all discerning listeners.

Bringing The Boom – The Woofers
The 6.5″ woofer design starts out by reducing the mounting depth of the chassis and motor, tucking the high energy CNC motor inside the frame and tooling a vented suspension system around the motor. A high-grade magnet resides in a shorting ring motor design to eliminate electromagnetic distortions resulting in clean, natural and detailed midrange response.

Advanced Materials
The woofer features a curved linear, shallow composite cone with an asymmetrical carbon and glass fibre weave. This is rigid enough to not flex under stress and internally dampened to not ring in the upper frequency range. This ultra light cone is matched to a nitrile butyl rubber surround that’s flexible, durable and light enough to achieve high sensitivity whilst controlling ringing effects. The voice coil is bifilar wound, further reducing mass and optimising sensitivity and power.

Filling In The Top – The Tweeters
The C series broadband tweeter design includes a special back cavity that’s capable of handling additional octaves. This raises up the important frequencies in the vehicle to improve realistic imaging and overcome deficiencies exaggerated by distances between OEM locations.

Strong Motors
The main and auxiliary double magnet neodymium motor system plus copper shorting ring form a stable magnetic field, reduce inductance modulation and lowers distortions. The CNC machined aluminum alloy back cavity is machined to improve sound back wave diffusion, absorption and low frequency tuning.

Light Weight, Not So Light On Performance
The ultra light and ultra rigid hemispherical diaphragm is composed of an advanced magnesium-aluminum alloy, with a thickness of only 0.035 mm to yield lighting fast transients. It’s thence coupled to a tangential impregnated surround, suppressing segmented frequency nodes while allowing long excursion control. The low mass of the copper clad aluminum voice coil helps increase sensitivity and transients. The combination of highly advanced materials, focused magnetic geometry and tuned back cavity allows the broadband tweeter to have a 580 Hz resonant frequency while extending the upper frequency response beyond 40000 Hz!

The tweeter diaphragm is protected by a DD stainless steel CNC cut grill and comes supplied with a ABS pod to allow a high degree of installation freedom.

Splitting The Streams – The Crossovers
The C series woofer and tweeter can be supplied with passive crossovers or as active sets. The passive crossover point is 1600 Hz thus allowing its ultra-broadband characteristics to be brought into play.

The transparent acrylic cover displays the precision components and ensures flat frequency response and consistent phase response. The high pass is 12 dB / octave with a large volume film capacitor and air core inductor. The 6.5 midwoofer is 6 dB / octave with impedance compensation.

Design Features
The rich heritage of this astute and masterful designer, together with its ever-increasing technical acumen; is conducive to these components featuring a vast array of impressive design ideologies and latest technological advancements. We canvass some of these technologies further below.
– Compact universal fitment shallow frame.
– Asymmetrical carbon fibre and glass fiber cone.
– Shorting ring equipped high-energy motors.
– Gold plated connectors.
– Vented suspension platform.
– 20 mm broadband tweeter with 40000 Hz frequency extension.
– CNC machined aluminum tuned back cavity.
– Magnesium-aluminum alloy diaphragm.
– Double magnet neodymium motor with shorting ring.
– ABS remote mounting pod.
– CNC machined stainless steel grill.
– Crossovers feature transparent acrylic housing.
– Crossover point set at 1600 Hz.
– 12 dB / octave high pass, 6 dB / octave low pass.
– Air core inductors.
– Precise phase coupling.
– Available as active or passive set.

Electrical Specifications
– Nominal configuration: two-way 6.5″ & 0.9″ passive component set
– Continuous power handling: 65 Watts
– Maximum power handling: 150 Watts
– Voice coil diameter: 25.4 mm
– Frequency response: 60 Hz – 40000 Hz
– Sensitivity: 89.6 dB
– DC resistance (Re): 2.05 Ohms
– Resonant frequency (Fs): 49.374 Hz
– Xmax: +/- 6 mm
– Compliance (Vas): 18.203 l
– Total Q (Qts): 0.329
– Mechanical Q (Qms): 3.912
– Electrical Q (Qes): 0.359

Physical Specifications
– Mounting diameter: 143 mm
– Mounting depth: 53 mm
– Weight: 3.1 kg

Documentation
– Specifications sheet

Important Disclaimers
Given the dynamic nature of electronics industries these days; below are listed some very important specifics you need to be aware of.

Brand Authorization And Stock Sourcing
We are a fully authorised Australian dealer of this brand and all stock is sourced through legitimate channels. It therefore enjoys full Australian warranty, backing and support.

Pricing Structure
Whilst we endeavor to offer the best price possible, we ask that if you do find a better price elsewhere from an authorised dealer; please contact us. Also be aware that we regularly conduct group buys and sales, therefore pricing can sometimes be subject to change without notice.

Stock Structure
Being a dynamic store is conducive to our inventory constantly changing. We list only a small portion of our stable online, usually products most popular. Aside from these we also stock numerous other variants and configurations of these products, hence if you don’t see what you’re after please contact us.

Shipping
All our products are shipped with registered and insured postage. Upon ordering you’ll be issued with a receipt, a consignment note via which you can track your order, and we’ll also SMS you photos of the package for identification purposes.

Technical support
This last one we cannot emphasise enough! Please contact us if you require any further information or assistance with the setup and use of this product, especially pertaining to aspects more technical. As we want you to get the very best from this product.