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C SERIES

C SERIES

A SONIC
SANCTUARY

A SONIC
SANCTUARY

Audiophile-grade

Audiophile-grade

without going beyond their price class

without going beyond their price class

The newly revised C Series Component Set is made to deliver an exquisite, in-the-studio listening experience.

The newly revised C Series Component Set is 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’s cabin into a sonic sanctuary.

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’s cabin into a sonic sanctuary.

The Digital Designs R&D team spent over two years developing and tooling these state-of-the-art drivers, surpassing the excellence of DD’s OEM upgrade speakers without going beyond their price class, resulting in an authentic audiophile-grade component set that is accessible to all discerning listeners.

The Digital Designs R&D team spent over two years developing and tooling these state-of-the-art drivers, surpassing the excellence of DD’s OEM upgrade speakers without going beyond their price class, resulting in an authentic audiophile-grade component set that is accessible to all discerning listeners.

This set is, at every level, high fidelity.

UPPER RANGE

In the upper range the tweeters produce a rich, airy feeling that reveals clear detail with every octave.

MIDRANGE

In the midrange the woofers render vocals with distinctly natural and life-like character, while delivering band instruments and samplings with smooth layering.

LOWER RANGE

In the lower range you will be stunned by the clean, tight beats and be lulled by the rhythmic transient response.

Critical attention has been paid to ensuring musicality without ear fatigue and resolution without edge.

THE 6.5″ MIDWOOFER

The 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.

The high energy grade magnet resides in a shorting ring motor design to eliminate electro-magnetic distortions resulting in clean, natural and detailed midrange response.

The 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.

The high energy grade magnet resides in a shorting ring motor design to eliminate electro-magnetic distortions resulting in clean, natural and detailed midrange response.

Stylized close-up of woofer basket with DD logo venting
Motor Design
Stylized close-up of woofer shorting ring
Copper Shorting Ring

THE COMPOSITE CONE

Featuring a curvilinear, shallow composite cone with an asymmetrical carbon and glass fibre weave, 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 NBR 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, optimizing sensitivity and power.

Featuring a curvilinear, shallow composite cone with an asymmetrical carbon and glass fibre weave, 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 NBR 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, optimizing sensitivity and power.

Stylized close up of carbon fiber weave
Back Of Cone
Stylized close up of carbon fiber weave
Front Of Cone
Stylized close-up of woofer cone surround, cone, and dustcap
Cone Surround
Stylized close-up of woofer voice coil
Woofer Coil

WOOFER

PREMIUM FEATURES

  • Compact, Universal Fitment 6.5” Shallow Frame
  • Asymmetrical Carbon Fibre and Glass Fiber Cone
  • Shorting Ring, High Energy Midwoofer Motor
  • Gold Plated Connectors
  • Vented Suspension Platform
Photo of C Series 6.5 Woofer component facing front to show composite cone, surround, and dustcap
Photo of C Series 6.5 Woofer component angled right to show composite cone, surround, dustcap and part of frame
Photo of C Series 6.5 Woofer component shot back to front to show integrated motor with DD logo in the basket
Photo of C Series 6.5 Woofer component shot back to front angled left to show integrated motor and venting with DD logo in the basket
  • Photo of C Series 6.5 Woofer component facing front to show composite cone, surround, and dustcap
  • Photo of C Series 6.5 Woofer component angled right to show composite cone, surround, dustcap and part of frame
  • Photo of C Series 6.5 Woofer component shot back to front to show integrated motor with DD logo in the basket
  • Photo of C Series 6.5 Woofer component shot back to front angled left to show integrated motor and venting with DD logo in the basket

THE 20MM TWEETER

The C Series broadband tweeter design includes a special cavity back 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.

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

The C Series broadband tweeter design includes a special cavity back 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.

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

Stylized close-up of tweeter back cavity
BACK CAVITY
Stylized close-up of tweeter shorting ring
NEO MOTOR SHORTING RING

BROADBAND BRILLIANCE

The ultra light and ultra rigid hemispherical diaphragm is composed of an advanced magnesium-aluminum alloy, with a thickness of only 0.035mm to yield lighting fast transients. It’s 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 580Hz resonant frequency while extending the upper frequency response beyond 40kHz !!

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.

The ultra light and ultra rigid hemispherical diaphragm is composed of an advanced magnesium-aluminum alloy, with a thickness of only 0.035mm to yield lighting fast transients. It’s 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 580Hz resonant frequency while extending the upper frequency response beyond 40kHz !!

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.

Stylized close-up of tweeter diaphragm and surround
DIAPHRAGM AND SURROUND
Stylized Closeup of Tweet Voice Coil
TWEETER VOICE COIL
Stylized close-up of tweeter grill with embossed DD logo in center
CUSTOM STEEL GRILL

TWEETER

PREMIUM FEATURES

  • 20mm Broadband Tweeter with 40kHz Frequency Extension
  • CnC Machined Aluminum Tuned Back Cavity
  • Magnesium-Aluminum Alloy Diaphragm
  • Double magnet Neo Motor With Shorting Ring
  • Remote Mounting Pod
  • CnC Cut Stainless Steel Grill
Photo of C Series 25mm tweeters - one in the included pod and one by itself, both angled to show grill and rear
Photo of C Series 25mm tweeter - facing front to show grill.
Photo of C Series 25mm tweeter - angled to show grill, revealing diaphragm and internal surround, and motor casing.
Photo of C Series 25mm tweeter - shot back to front showing the DD logo on the back of the neo motor shell.
  • Photo of C Series 25mm tweeters - one in the included pod and one by itself, both angled to show grill and rear
  • Photo of C Series 25mm tweeter - facing front to show grill.
  • Photo of C Series 25mm tweeter - angled to show grill, revealing diaphragm and internal surround, and motor casing.
  • Photo of C Series 25mm tweeter - shot back to front showing the DD logo on the back of the neo motor shell.

CROSSOVER

The C Series woofer and tweeter can be supplied with passive crossovers or as active sets. The passive crossover point is 1600Hz 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 12dB/oct with a large volume film capacitor and air core inductor. The 6.5 midwoofer is 6dB/oct with impedance compensation.

The C Series woofer and tweeter can be supplied with passive crossovers or as active sets. The passive crossover point is 1600Hz 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 12dB/oct with a large volume film capacitor and air core inductor. The 6.5 midwoofer is 6dB/oct with impedance compensation.

The combination of highly advanced materials, focused magnetic geometry and tuned back cavity allows the broadband tweeter to have a 580Hz resonant frequency while extending the upper frequency response beyond 40kHz !!

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.

Stylized close-up of crossover
AIR CORE INDUCTORS

CROSSOVER

PREMIUM FEATURES

  • Transparent Acrylic Crossover Housing
  • Crossover Point 1600Hz
  • 12dB/oct High Pass, 6dB/oct Low Pass
  • Air Core Inductors
  • Precise Phase Coupling

The set is available with or without crossover.

Photo of full C Series component set facing front, including the woofer, tweeter and optional crossover
Photo of full C Series component set angled to show back to front of the woofer, tweeter and optional crossover.
Photo of full C Series component set in the ornate box angled slightly, including the woofer, tweeter, tweeter pods and optional crossover
Photo of full C Series component set's ornate box, closed, angled slightly showing the DD logo
  • Photo of full C Series component set facing front, including the woofer, tweeter and optional crossover
  • Photo of full C Series component set angled to show back to front of the woofer, tweeter and optional crossover.
  • Photo of full C Series component set in the ornate box angled slightly, including the woofer, tweeter, tweeter pods and optional crossover
  • Photo of full C Series component set's ornate box, closed, angled slightly showing the DD logo
Graph Showing SPL vs Freq - dBSPL / Freq / Ohm - too many data points to express
Graph Showing SPL vs Freq - dBSPL / Freq - too many data points to express
Power Handling:
Rated Pink Noise Tested
65w

Peak Capacity Power Tested
150w

X-Over: 2nd Order HP Butterworth (IEC-268-5)
100Hz
X-Over Information:
Crossover Frequency
1600Hz

High Pass Filter Slope
-12dB/Oct

Low Pass Filter Slope
-6dB/Oct
Electrical Data:
WideBand-Tweeter
Mid-Woofer
Nominal Impedance
Zn
3.0Ω
2.0Ω

DC Resistance
Re
2.82Ω
2.05Ω

Maximum Impedance
Zo
38.367Ω
24.420Ω

Minimum Impedance
Zmin
3.186Ω
2.594Ω

Voice Coil Inductance (1kHz)
Le
0.031mH
0.177mH
T-S Parameters:
WideBand-Tweeter
Mid-Woofer
Resonance Frequency
Fs
582.521Hz
49.374Hz

Mechanical Q Factor
Qms
12.164
3.912

Electrical Q Factor
Qes
0.965
0.359

Total Q Factor
Qts
0.894
0.329

Force Factor
Bl
1.806 T-M
4.879 T-M

Mechanical Resistance
Rms
0.009 Ns/M
1.064 Ns/M

Moving Mass without Air Load
Mmd
0.297g
12.582g

Moving Mass Within Air Load
Mms
0.305g
13.422g

Suspension Compliance
Cms
0.245 mm/N
0.774 mm/N

Effective Piston Area
SD
5.7cm2
128.680cm2

Equivalent Volume
Vas
11.392 mLtr
18.203 Ltr

Reference Efficiency
No
0.228%
0.591%

Frequency Response (-6dB)
Free Air
60~40,000Hz

Sensitivity @ 1W / 1M (±3dB)
E
89.6dB
Mechanical Data:
WideBand-Tweeter
Mid-Woofer
Voice Coil Diameter
Id
0.72 Inch / 18.4 mm
1.0 Inch / 25.5 mm

Voice Coil Former
VCfm
Polyimide
Aluminum

Voice Coil Wire Composition
 
CCAW
Copper

Voice Coil Winding Length
h
3.2mm
8.8mm

Voice Coil Layers
n
2mm
4mm

Magnetic Material
 
NdFeB
Ferrite+NdFeB

Magnet Diameter
Sm
18+14mm
90+25mm

Magnet Weight
MW
0.48 Oz
15 Oz

Magnetic Gap Height
HE
2mm
4mm

Linear Excursion
P-P
1.2mm
8mm

Max Mech. Excursion
P-P
±4mm
±12mm

Unit Weight
UW
100 Grams
980 Grams
Mounting Information:
WideBand-Tweeter
Mid-Woofer
Overall Diameter
OD
2.08 Inch / 53 mm
6.57 Inch / 167 mm

Cutout Diameter
CD
1.76 Inch / 44.6 mm
5.63 Inch / 143 mm

Total Depth
TD
1.08 Inch / 27.5 mm
2.08 Inch / 53 mm

Mounting Depth
MD
0.67 Inch / 17 mm
1.69 Inch / 43 mm