AUDIOCONTROL EPICX12 D2 (01) PDF DOCUMENT

The AUDIOCONTROL EPICX12 D2 subwoofer features include:

• Composite foam surround for smooth, controlled bass

• High-precision motor assembly improves efficiency and output

• Rigid steel basket for strength and reduced resonance

• High-temperature, lightweight voice coil

• Dual dust cap design for enhanced rigidity and heat dissipation

• Non-pressed paper cone for added warmth and depth

• Large-gauge, quick-release black nickel terminals

• Show Car approved

Please follow these instructions when using your AUDIOCONTROL EPICX12 D2:

1. Read these instructions.

2. Keep these instructions.

3. Heed all warnings.

4. Follow all instructions.

5. Do not submerge this apparatus in water.

6. Clean only with a dry cloth.

7. SECURE MOUNTING: Mount your subwoofer enclosure properly to ensure safety. A loose enclosure can become a projectile during a hard stop or sharp turn. An unsecured enclosure can also interfere with fuel lines, brake lines, or electrical wiring. Before drilling, check what’s behind or underneath your mounting area.

8. Use speaker wire of sufficient size (10-14 gauge) to ensure adequate current to the speaker.

9. To prevent excessive cone excursion and potential damage, use an infrasonic (subsonic) filter set half an octave below the enclosure’s tuning frequency (Fb).

10. Refer all servicing to qualified service personnel.

11. Exposure to high sound pressure levels may lead to permanent hearing loss. Take precautions to protect your hearing.

The power handling for the AUDIOCONTROL EPICX12 D2 varies depending on the enclosure it is installed in.

Speaker Music Power:

• MIN: 400

• RMS: 500

• MAX: 750

Power Handling by Enclosure Type:

1. Sealed enclosure – 500 W RMS

2. Vented enclosure – 500 W RMS

3. Large vented enclosure – 400 W RMS (Reduced power is needed to control the woofer’s excursion and maintain high efficiency in an oversized vented enclosure).

Below are the TS parameters for the AUDIOCONTROL EPICX12 D2 subwoofer. These specifications are intended for designing and modeling custom enclosures.

Note: TS parameters are measured after an 8 to 12 hour break-in period and may change slightly with use. They can also vary marginally between production batches.

Wiring a dual voice coil subwoofer in series doubles the impedance the amplifier sees. For the AUDIOCONTROL EPICX12 D2 (2Ω per coil), this results in a final impedance of 4Ω.

1. Connect one voice coil’s negative terminal to the other voice coil’s positive terminal to form a bridge.

2. Connect the amplifier’s positive output to the first voice coil’s open positive terminal.

3. Connect the amplifier’s negative output to the second voice coil’s open negative terminal.

Wiring a dual voice coil subwoofer in parallel cuts the impedance the amplifier sees in half. For the AUDIOCONTROL EPICX12 D2 (2Ω per coil), this results in a final impedance of 1Ω.

1. Connect both positive voice coil terminals together.

2. Connect both negative voice coil terminals together.

3. Connect the amplifier’s positive output to the joined positive terminals.

4. Connect the amplifier’s negative output to the joined negative terminals.

This configuration results in a final impedance of 2Ω when using two AUDIOCONTROL EPICX12 D2 (2Ω per coil) subwoofers.

1. On each subwoofer, connect one voice coil’s negative terminal to the other voice coil’s positive terminal to form a bridge. This wires each individual sub in series for a 4Ω load per sub.

2. Connect the remaining open positive terminals from both subwoofers together.

3. Connect the remaining open negative terminals from both subwoofers together.

4. Connect the amplifier’s positive output to the joined positive terminals.

5. Connect the amplifier’s negative output to the joined negative terminals.

To wire two subwoofers in parallel:

1. On each subwoofer, connect both positive voice coil terminals together, and both negative voice coil terminals together. This wires each individual sub in parallel.

2. Connect the joined positive terminals from each subwoofer together.

3. Connect the joined negative terminals from each subwoofer together.

4. Connect the amplifier’s positive output to the joined positive terminals on the subwoofers.

5. Connect the amplifier’s negative output to the joined negative terminals on the subwoofers.

Important Note: This wiring configuration is not recommended for the AUDIOCONTROL EPICX12 D2 (2Ω) subwoofer. This configuration would result in a 0.5Ω load, which can damage most amplifiers.

The choice between a sealed or ported enclosure depends on available space and personal music preference.

Sealed Enclosures:

• Smaller enclosure size

• Excellent transient response

• Less output per watt, but punchier, tighter sound

• Lower dynamic output

Ported/Vented Enclosure:

• Larger enclosure size

• Extended lower frequency response

• More bass output per watt

• Better dynamic output

For the best all-around bass experience, a slot vented enclosure is recommended if you have the space.

Once you decide on a sealed or ported enclosure, you can fine-tune its size to match your vehicle space and listening preferences. Here is how enclosure size affects the overall sound:

• MIN: This is the smallest recommended enclosure size. It provides the most compact size while sacrificing some low-frequency bass response.

• IDEAL: This value is recommended for most listeners. It provides an excellent blend of low-frequency bass with accurate and strong overall output.

• MAX: This is the largest recommended enclosure size. Although it is quite large, it provides exceptional bass with extended low-frequency output.

The following specifications are for a vented enclosure designed to deliver balanced, powerful bass performance from your AUDIOCONTROL EPICX12 D2 subwoofer.

Below are the specifications for sealed enclosures in three sizes (MIN, IDEAL, MAX) for the AUDIOCONTROL EPICX12 D2.

MIN Enclosure (Smallest)

IDEAL Enclosure (Recommended)

MAX Enclosure (Largest)