Product features
Factory speakers can leave voices difficult to follow and bass short of weight. This Soundtech package brings together the listed components for Audi A6 C9 AudiSound Active Speaker & Subwoofer DSP Amplified Package AudiSound. Choose by the chassis and installed sound system, not the badge alone.
What this upgrade addresses
- A defined component list, so speakers, wiring and mounting parts can be planned together.
- Replacement speakers for the positions described in the package, without treating a similar looking driver as interchangeable.
- DSP adjustment for level, crossover and time alignment where supported by the listed processor. Professional setup is needed to suit the car.
Component specifications
HELIX Ci5 T25FM-CA
| Specification | Value |
|---|---|
| Impedance | Z | 4 Ω |
| DC resistance | Re | 3.2 Ω |
| Frequency response | 2,000 Hz to 25,000 Hz |
| Resonance frequency | Fs | 1800 Hz |
| Sensitivity | SPL | 94.0 dB @ 2.83V / 1m 91.0 dB @ 1W / 1m |
| Voice coil diameter | Ø | 25 mm |
| Cone material | Aluminum with ceramic coating |
| Outer diameter | 40 mm / 1.57" |
| Installation diameter | 38 mm / 1.50" |
| Installation depth | 11.7 mm / 0.46" |
| Slope | Minimum crossover frequency |
| 6 dB/Octave | > 4,000 Hz |
| 12 dB/Octave | > 3,000 Hz |
| 24 dB/Octave | > 2,500 Hz |
HELIX Ci3 W200FM-S3
| Specification | Value |
|---|---|
| Power handling RMS | 100 Watts |
| Maximum power handling | 150 Watts |
| Impedance | Z | 3 Ω |
| DC resistance | Re | 3.0 Ω |
| Frequency response | 50 Hz to 3,000 Hz |
| Resonance frequency | Fs | 67 Hz |
| Mechanical Q factor | Qms | 4.25 |
| Electrical Q factor | Qes | 0.93 |
| Total Q factor | Qts | 0.76 |
| Compliance | Cms | 300 µm/N |
| Equivalent air volume | Vas | 19.0 L |
| Force factor | B*I | 5.1 Tm |
| Sensitivity | SPL | 94 dB @ 2.83 V / 1m 90 dB @ 1W / 1m |
| Cone area | Sd | 214 cm² |
| Moving mass | Mms | 18.8 g |
| Cone material | Paper with Cenosphere coating |
| Mechanical resistance | Rms | 1.87 kg/s |
| Voice coil diameter | ø | 25 mm |
| Voice coil winding height | 11.6 mm |
| Max. linear excursion | Xmax | +/- 3.8 mm |
| Outer diameter | ø | 195 mm / 7.68" |
| Outer diameter with universal mounting ring | ø | 208.9 mm / 8.22" |
| Installation diameter | ø | 173.5 mm / 6.83" |
| Installation depth | 63.7 mm / 2.51" |
| Features | ProConnect terminal, FlexMount200, grille |
HELIX Ci3 K165.2FM-S3 MK2
| Specification | Value |
|---|---|
| Power handling RMS | 100 Watts |
| Maximum power handling | 150 Watts |
| Frequency response | 60 Hz to 25,000 Hz |
| Impedance | Z | 3 Ω |
| Sensitivity | SPL | 92 dB @ 2.83V / 1m 88 dB @ 1W / 1m |
| Outer diameter | ø | Tweeter: 32.0 mm / 1.26” Midbass: 165.0 mm / 6.50” |
| Installation diameter | ø | Tweeter: 32.0 mm / 1.26” Midbass: 142.0 mm / 5.59” |
| Installation depth | Tweeter: 9.8 mm / 0.39” Midbass: 60.7 mm / 2.39” |
| Dimensions crossover | 103.3 x 50.4 x 25.0 mm / 4.07 x 1.98 x 0.98” |
| Impedance | Z | 3 Ω |
| DC resistance | Re | 3.0 Ω |
| Resonance frequency | Fs | 70 Hz |
| Mechanical Q factor | Qms | 4.17 |
| Electrical Q factor | Qes | 1.05 |
| Total Q factor | Qts | 0.84 |
| Compliance | Cms | 454 μm/N |
| Equivalent air volume | Vas | 11.2 L |
| Force factor | B*l | 4.0 Tm |
| Cone area | Sd | 133 cm 2 |
| Moving mass | Mms | 11.3 g |
| Mechanical resistance | Rms | 1.18 kg/s |
| Voice coil diameter | ø | 25 mm |
| Voice coil winding height | 10.5 mm |
| Max. linear excursion | Xmax | +/- 3.2 mm |
| Impedance | Z | 4 Ω |
| Resonance frequency | Fs | 1800 Hz |
| Voice coil diameter | ø | 20 mm |
| Tweeter | Ultra compact, aluminum dome, neodymium magnet and FlexMount20 |
| Midbass | Paper with Cenosphere coating, ProConnect terminal and FlexMount165 |
| Crossover | Tweeter: 12 dB highpass, protection and level adjustment Midbass: 6 dB lowpass |
Tweeter: 32.0 mm / 1.26” Midbass: 165.0 mm / 6.50”
Tweeter: 32.0 mm / 1.26” Midbass: 142.0 mm / 5.59”
Tweeter: 9.8 mm / 0.39” Midbass: 60.7 mm / 2.39”
103.3 x 50.4 x 25.0 mm / 4.07 x 1.98 x 0.98”
Voice coil winding height
Ultra compact, aluminum dome, neodymium magnet and FlexMount20
Paper with Cenosphere coating, ProConnect terminal and FlexMount165
Tweeter: 12 dB highpass, protection and level adjustment Midbass: 6 dB lowpass
HELIX IK E10.1-DVC2 MK2
| Specification | Value |
|---|---|
| IK E10.1-DVC2 MK2 to 2 x 2 Ohms | |
| Power handling RMS | P | 300 Watts |
| Recommended amplifier power | RMS | 150 to 300 Watts |
| Impedance | z | 2 x 2 Ω / 1 x 4 Ω / 1 x 1 Ω |
| Max. linear excursion | Xlin | +/- 8 mm |
| Max. mechanical excursion | Xmax | +/- 18.5 mm |
| Port tuning frequency | Fb | 43 Hz |
| Sensitivity | SPL | 91 dB @ 2.83V / 1m 88 dB @ 1W / 1m |
| Dimensions (H x W x D) | 187 x 471 x 375 mm 7.4 x 18.5 x 14.8" |
| Integrated subwoofer chassis | HELIX IK W10-DVC2 |
| Recommended DSP settings | "Self define" highpass 37 Hz / Q = 1.5; EQ filter: 115 Hz / Q = 0.7 / −2 dB |
91 dB @ 2.83V / 1m 88 dB @ 1W / 1m
187 x 471 x 375 mm 7.4 x 18.5 x 14.8"
MATCH UP 10DSP MK2
| Specification | Value |
|---|---|
| Power RMS ≤ 1% THD+N | |
| @ 4 Ohms | Channels A to H: 65 Watts (min. 3 Ohms*) Channels I to J: 75 Watts (min. 3 Ohms*) |
| @ 2 Ohms | Channels I to J: 125 Watts |
| @ 1 Ohm | |
| bridged @ 4 Ohms | |
| bridged @ 2 Ohms | |
| Max. output power per channel** | Channels A to H: up to 80 Watts RMS @ 4 Ohms Channels I to J: up to 90 Watts RMS @ 4 Ohms Channels I to J: up to 160 Watts RMS @ 2 Ohms |
| Amplifier technology | Class GD |
| Inputs | 8 x Highlevel speaker input 1 x Optical SPDIF (12 to 96 kHz) 1 x Extension Card 2.0 |
| Input sensitivity | Channels A to F: 4 to 16 Volts Channels G to H: 4 to 32 Volts |
| Input impedance RCA / Cinch | |
| Input impedance highlevel | 9 to 33 Ohms with ADEP.3 |
| Outputs | 10 x Speaker output 1 x RCA / Cinch 1 x Remote Out |
| Output voltage RCA / Cinch | 3 Volts RMS |
| Frequency response | 15 Hz to 22,000 Hz |
| DSP resolution | 64 Bit |
| DSP power | 295 MHz (1.2 billion MAC operations/second) |
| Sampling rate | 48 kHz |
| DSP type | Audio signal processor |
| Signal converters | A/D: BurrBrown D/A: BurrBrown |
| Signal to noise ratio digital input | 105 dB (A weighted) |
| Signal to noise ratio analog input | 103 dB (A weighted) |
| Distortion (THD @ 1 kHz, 1 W into 4 Ohms) | < 0.015 % |
| Distortion (THD+N @ 1 kHz, 1 W into 4 Ohms) | < 0.02 % |
| Distortion (THD @ 100 Hz, 1 W into 4 Ohms) | |
| Distortion (THD+N @ 100 Hz, 1 W into 4 Ohms) | |
| Operating voltage | 10.5 to 18 Volts (max. 5 sec. down to 6 Volts) |
| Power rating | DC 12 V ⎓ 60 A max. |
| Idle current | 500 mA |
| Max. remote output current | 500 mA |
| Operating temperature range | −40° C to +70° C |
| Fuse | 2 x 25 A LP-Mini fuse (APS) |
| Additional features | Class GD technology with dynamically controlled power supply, 32 Bit CoProcessor, ADEP.3 circuit, Start Stop capability, Smart Control Port, USB-C, Auto Remote switch |
| Dimensions (H x W x D) | 46 x 145 x 163 mm / 1.81 x 5.71 x 6.42" |
* DC resistance min. 3.0 Ohms ** In typical multi channel applications
PP-VAG 2.6
| Specification | Value |
|---|---|
| Cable harness length | 2.00 meters |
| Connections | 1 x 8 pole MOLEX female connector for connecting a MATCH Plug & Play subwoofer 1 x 20 pole MOLEX male connector for connection to the system connector input of the amplifier 1 x 4 pole MOLEX male connector for connection to the highlevel input E + F of the amplifier* 1 x 8 pole MOLEX male connector for connection to the speaker output E , H of the amplifier 1 x Quadlock male connector for connection to the OEM head unit 1 x Quadlock female connector for connection to the original cable harness |
Cable harness length
2.00 meters
Connections
1 x 8 pole MOLEX female connector for connecting a MATCH Plug & Play subwoofer 1 x 20 pole MOLEX male connector for connection to the system connector input of the amplifier 1 x 4 pole MOLEX male connector for connection to the highlevel input E + F of the amplifier* 1 x 8 pole MOLEX male connector for connection to the speaker output E , H of the amplifier 1 x Quadlock male connector for connection to the OEM head unit 1 x Quadlock female connector for connection to the original cable harness
* Depending on the installed OEM sound system the output channels E + F of the OEM head unit either provides the highlevel signals of the front woofers (front left and front right) or of the center speaker and subwoofer.
HELIX URC.1 SCP
| Specification | Value |
|---|---|
| Control elements | 1 x Rotary knob |
| Cable length | 5 Meters |
| Connector | SCP |
| Dimensions with housing | 30,1 x 23 x 42,7 mm / 1.18 x 0.90 x 1.68" |
HELIX CWK TES1.T-225TC
| Specification | Value |
|---|---|
| Cable harness length | 0.225 Meters / 0.7 feet |
| Connections | 1 x Tesla specific plug 1 x COMPOSE tweeter plug |
4CARMEDIA ZRS-AG 24
4CARMEDIA ZRS-AG 24 OEM Speaker Connector Adapter Pair | Audi
CFMK25 AUD.1
CFMK25 AUD.3
CFMK200 AUD.2
HELIX FlexMount CFMK200 to 8" 3D Printed Speaker Adapter | Pair: CFMK200 AUD.2 Audi, Seat
CFMK165 AUD.2
HELIX FlexMount CFMK165 to 6.5" 3D Printed Speaker Adapter | Pair: CFMK165 AUD.2 Audi, Seat
Fitment and exclusions
| Specification | Value |
|---|---|
| Distributor application | Audi A6 C9 AudiSound |
| Required factory sound system | AudiSound |
What is in the box
| Package quantity | Item and selected model |
|---|---|
| 1 | HELIX Ci5 T25FM-CA 1" Tweeter Pair, FlexMount | 4Ω |
| 1 | HELIX Ci3 W200FM-S3 to 8" Midbass Woofer Pair, FlexMount | 3Ω |
| 1 | HELIX Ci3 K165.2FM-S3 MK2 to 6.5" 2-Way Component Speaker Set, FlexMount | 3Ω |
| 1 | HELIX IK E10.1-DVC2 MK2 to 10" 300W RMS Vented Subwoofer Box | 2x2Ω |
| 1 | MATCH UP 10DSP MK2 to 10 Channel PnP Amplifier | 11ch DSP |
| 1 | MATCH PP-VAG VW-Audi Group PnP Harness For MATCH Amplifiers | Molex: PP-VAG 2.6 to 2m |
| 1 | HELIX URC.1 SCP Remote Control For Match & Helix DSP/Amps with SCP |
| 1 | HELIX CWK TES1.T-225TC Tesla & Audi OEM Speaker (type 1) to Tweeter | Wire Kit, 25.5cm |
| 2 | 4CARMEDIA ZRS-AG 24 OEM Speaker Connector Adapter Pair | Audi |
| 1 | HELIX FlexMount CFMK25 to 1.1" 3D Printed Speaker Adapter | Pair: CFMK25 AUD.1 Audi |
| 1 | HELIX FlexMount CFMK25 to 1.1" 3D Printed Speaker Adapter | Pair: CFMK25 AUD.3 Audi |
| 1 | HELIX FlexMount CFMK200 to 8" 3D Printed Speaker Adapter | Pair: CFMK200 AUD.2 Audi, Seat |
| 1 | HELIX FlexMount CFMK165 to 6.5" 3D Printed Speaker Adapter | Pair: CFMK165 AUD.2 Audi, Seat |
Installation and setup
Professional installation is recommended. Check the vehicle build, factory amplifier, connectors and mounting positions before work starts. Minor modifications may be needed depending on the exact year and trim. Installation and tuning are not included in the package price. Where a DSP amplifier is listed, set the crossovers, levels and routing for the actual speakers and test music, calls, navigation prompts and warning sounds.
Warranty
Australian Consumer Law rights apply. Confirm the warranty for the selected components when arranging the installation.
Frequently asked questions
Which components are included?
HELIX Ci5 T25FM-CA (quantity 1), HELIX Ci3 W200FM-S3 (quantity 1), HELIX Ci3 K165.2FM-S3 MK2 (quantity 1). The package table lists the remaining selected items and quantities.
Which vehicle and factory system is this for?
Use the exact distributor application and selected component models shown above. The vehicle build, body and installed factory audio equipment must be checked together.
How does the amplifier connect?
Use the exact interface and harness models in the component table. The installer must confirm the signal path and retained vehicle functions.
Does this package need DSP tuning?
Yes. The supplied MATCH UP 10DSP MK2 needs channel routing, crossovers and levels set for the selected speakers and the vehicle. Arrange professional setup.
Are installation and tuning included?
No. The price covers the listed products. Installation and any DSP tuning are arranged separately. Minor modifications may be needed depending on the exact year and trim.
What should be checked before replacing the speakers?
Check the stated impedance, installation depth, cutout and connectors for HELIX Ci5 T25FM-CA. Use the selected adapters where listed. A nominal speaker diameter or a similar grille is not enough to establish fitment.
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