HIFONICS ZEUS SERIES CAR AUDIO SUBWOOFERS
POWER FROM THE GODS
Introduction
Congratulations on your purchase of the new Hifonics ZEUS Series subwoofer system. The ZW12D4 subwoofer brings big bass at an affordable price!
Key Features:
- 12" Round Subwoofer
- Rigid Polypropylene Cone & Dust Cap
- Blue Foam Surround
- Blue Nomex Spider
- Stamp Steel Frame
- 1.5" High Temp Voice Coil
- DVC 4-Ohm (Dual Voice Coil)
- Spade Style Speaker Terminals
- 27 oz Vented Motor
- Protective Rubber Magnet Wrap
- Operates In Sealed & Ported Enclosures
As with all high quality car audio products, Hifonics recommends professional installation by an authorized Hifonics dealer. Your dealer's knowledge and experience can ensure a problem-free and cosmetically integrated installation. If you choose to install the subwoofers yourself, please read the entire manual very carefully.
SUBWOOFER INSTALLATION DIRECTIONS
Enclosure Materials
Typically, 5/8" or 3/4" MDF (Medium Density Fiber Board) is best for most applications. 3/4" MDF is recommended.
Enclosure Build Materials
Connecting joints need to be glued and screwed to ensure no air escapes and joints do not separate under high pressure. Mitered and rabbit joints also help to ensure the enclosure joints are secure.
Bracing
Internal bracing is also recommended to prevent flexing and to strengthen the enclosure.
Note: The volume taken up by the bracing should be added to the total enclosure interior volume.
There are two common bracing methods:
- Corner Bracing: These help prevent the connection joints from separating under heavy vibration and air pressure. Use 1" x 1" MDF at all interior joints.
- Diagonal Bracing: These internal braces connect the top side to the bottom side as well as the front side to the back side. This prevents the wood from bowing or pushing outwards. Use 1" x 2" with 1" surface contact that is glued and screwed.
HIFONICS ZEUS SERIES SUBWOOFERS - Technical Specifications
| Parameter | Value | Unit |
|---|---|---|
| Wiring | Series | Coils |
| NomZ | 8.172 | Ohm |
| Sd | 0.0499 | sqM |
| Revc | 6.81 | Ohm |
| BL | 9.88 | TxM |
| Vas | 108.3 | Liter |
| Cms | 306.4 | uM/N |
| Mms | 112.5 | Grams |
| Fs | 27.14 | Hz |
| Qms | 5.9 | |
| Qes | 1.34 | |
| Qts | 1.09 | |
| no | 0.156 | % |
| SPL019 | 83.95 | dB |
| Xmax | 6.7 | mm |
| Rms | 300 | Watts |
| Maxx | 600 | Watts |
| CLOSED BOX DESIGNS (SEALED) | ||
| Standard Box Volume | 1 | Cubic Feet |
| Qtc | 2.207 | |
| F3 | 41 | Hz |
| VENTED BOX DESIGNS (ROUND PORT) | ||
| Standard Box Volume | 1.5 | Cubic Feet |
| Fb | 40 | Hz |
| Port Size (inside diameter) | 3 | Inches |
| Port Length | 6.25 | Inches |
| F3 | 39 | Hz |
FEATURES ARE SUBJECT TO CHANGE WITHOUT NOTICE
NOTE: All above box volumes are internal values and already include subwoofer and port displacement. The F3 value represents the -3dB cut off of the enclosure in Hz. Polyfill may be added to sealed enclosures to reach the desired Q-Value.
DVC 4-Ohm Coil Wiring Configurations
The ZW12D4 features Dual Voice Coils (DVC) with 4-Ohm impedance each. These can be wired in various configurations to achieve different total impedances for compatibility with amplifiers.
Parallel Coils (Single Subwoofer)
Wiring the two 4-Ohm voice coils in parallel results in a 2-Ohm load. The positive terminals of both coils are connected together to the amplifier's positive output, and the negative terminals of both coils are connected together to the amplifier's negative output.
Series Coils (Single Subwoofer)
Wiring the two 4-Ohm voice coils in series results in an 8-Ohm load. The positive terminal of the first coil connects to the amplifier's positive output. The negative terminal of the first coil connects to the positive terminal of the second coil. The negative terminal of the second coil connects to the amplifier's negative output.
Parallel Coils / Parallel Subs
When using multiple subwoofers, the voice coils within each subwoofer can be wired in parallel, and then these resulting loads can be wired in parallel to the amplifier.
- Two Subwoofers (each with parallel coils): Each subwoofer presents a 2-Ohm load. Wiring these two 2-Ohm loads in parallel results in a 1-Ohm total load.
- Two Subwoofers (each with series coils): Each subwoofer presents an 8-Ohm load. Wiring these two 8-Ohm loads in parallel results in a 4-Ohm total load.
- Three Subwoofers (each with series coils): Each subwoofer presents an 8-Ohm load. Wiring these three 8-Ohm loads in parallel results in approximately a 2.66-Ohm total load.
- Four Subwoofers (each with series coils): Each subwoofer presents an 8-Ohm load. Wiring these four 8-Ohm loads in parallel results in a 2-Ohm total load.
Subwoofer Dimensions
The Hifonics ZEUS ZW12D4 subwoofer has the following dimensions:
- Overall Diameter: 310mm / 12.2 inches
- Mounting Depth: 125mm / 4.92 inches
- Overall Depth: 278.5mm / 10.96 inches
Glossary of Terms
- Q
- The energy losses of relative damping (ratio of stored to dissipated energy or ratio of reactive to resistive energy).
- Fs
- Free air resonance of driver in Hz.
- Qms
- Mechanical Q.
- Vas
- Volume of air equivalent to driver from the rest position.
- Cms
- Mechanical compliance of a loud speaker piston.
- Mms
- Moving mass of total loud speaker piston assembly.
- Xmax
- The maximum linear excursion of a loud speaker.
- Sd
- Surface area of the cone.
- Dia
- The piston diameter of a loud speaker.
- Qes
- Electrical Q of a system.
- Re
- DC resistance.
- Le
- VC inductance.
- Pe
- Maximum input power.
- Qts
- Total Q of the system.
- Sens
- Sensitivity. An efficiency measurement in dB's.
- Vc
- Volume of a closed or sealed enclosure.
- Vb
- Volume of a vented enclosure.
- Fc
- The resonant frequency of a closed or sealed system.
- Fb
- The resonant frequency of a vented system.
- F3
- The half-power (-3dB) frequency of a loud speaker enclosure.
- Qtc
- The Q of a loud speaker at Fc in a closed box, considering both its electrical and mechanical resistance.
- QL
- The Q of a vented box, resulting from all box losses.
- DV
- Diameter of vent.
- LV
- Length of vent.
- H
- Height.
- W
- Width.
- D
- Depth.
