DS18 IXS12 12" Shallow-Mount Subwoofer — 800W RMS / 1600W MAX
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DS18 IXS12 12" Shallow-Mount Subwoofer — 800W RMS / 1600W MAX
Product Overview
Description
Key Features
- 12" shallow-mount subwoofer — only 4.33" mounting depth
- 800W RMS / 1600W MAX
- Available in Dual 2-Ohm, Dual 4-Ohm or Single 4-Ohm voice coil
- 2.5" aluminum voice coil former, copper winding
- Paper cone with fiberglass dust cap and stitched rubber surround
- Corrugated black aluminum basket
- 62 oz ferrite magnet
- Sold individually (each)
Product Overview
Twelve inches of cone in a chassis that only needs 4.33" of mounting depth — the IXS12 goes behind a seat or under a rear bench where a standard 12" would never clear, and still takes 800W RMS. Same construction as the rest of the IXS line: a 2.5" voice coil on an aluminum former with copper winding, a 62 oz ferrite motor, and a paper cone with a fiberglass dust cap on a stitched rubber surround. Choose the voice coil configuration to match your amplifier — Dual 2-Ohm, Dual 4-Ohm, or Single 4-Ohm. Needs 1 ft³ sealed. Sold individually (each).
SPECS
| SKU | IXS12.2D (Dual 2-Ohm) / IXS12.4D (Dual 4-Ohm) / IXS12.4S (Single 4-Ohm) |
| Nominal Diameter | 12" / 304.8mm |
| Nominal Impedance | 2+2 ohms (IXS12.2D) / 4+4 ohms (IXS12.4D) / 4 ohms (IXS12.4S) |
| RMS Power Handling | 800W |
| Maximum Power Handling | 1600W |
| Sensitivity (1w/1m) | 85 dB |
| Frequency Response | 20 - 600 Hz |
| Recommended Lo Pass Crossover | 80 Hz |
| Voice Coil Diameter | 2.5" / 63.5mm |
| Voice Coil Former Material | Aluminum |
| Winding Material | Copper |
| Cone Material | Paper |
| Dust Cap Material | Fiberglass |
| Surround Material | Stitched rubber |
| Basket Material | Aluminum |
| Basket Color/Finish | Corrugated Black |
| Magnet Material | Ferrite |
| Magnet Weight | 62 Oz |
| Displacement Volume | 0.93L / 0.033ft³ |
| Equivalent Volume Vas | 38L / 1.34ft³ (IXS12.2D) / 37.3L / 1.31ft³ (IXS12.4D) / 42.4L / 1.49ft³ (IXS12.4S) |
| Free Air Resonance Fs | 33 Hz |
| Mechanical Factor Qms | 4.83 (IXS12.2D) / 4.034 (IXS12.4D) / 4.844 (IXS12.4S) |
| Electrical Factor Qes | 0.82 (IXS12.2D) / 0.861 (IXS12.4D) / 0.996 (IXS12.4S) |
| Total Factor Qts | 0.7 (IXS12.2D) / 0.71 (IXS12.4D) / 0.826 (IXS12.4S) |
| Moving Mass Mms | 261.6 g (IXS12.2D) / 184 g (IXS12.4D) / 184.35 g (IXS12.4S) |
| Compliance Cms | 106.15 mm/N (IXS12.2D) / 104 mm/N (IXS12.4D) / 0.123 mm/N (IXS12.4S) |
| Bl Factor BI | 14 (IXS12.2D) / 18.75 (IXS12.4D) / 12.36 (IXS12.4S) |
| Voice Coil Inductance Le | 14.72 mH (IXS12.2D) / 7.07 mH (IXS12.4D) / 3.989 mH (IXS12.4S) |
| Diaphragm Area Sd | 494.81 cm² |
| DC Resistance Re | 1.6+1.6 ohms (IXS12.2D) / 3.6+3.6 ohms (IXS12.4D) / 3.9 ohms (IXS12.4S) |
| Efficiency Bandwidth Product EBP | 36.5 (IXS12.2D) / 40.6 (IXS12.4D) / 33.1 (IXS12.4S) |
| Sealed Internal Volume (minimum) | 28L / 1ft³ |
| Sealed Box Output Response F3 | 40Hz |
| Overall Diameter | 12.6" / 320 mm |
| Overall Depth | 5" / 129 mm |
| Front Mount Baffle Cutout | 10.79" / 274 mm |
| Mounting Depth | 4.33" / 110 mm |
| Motor Diameter | 6.3" / 160 mm |
| Gross Single Unit Weight | 16.5 lb |
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FAQs
Please read our FAQs page to find out more.
RMS vs. MAX power — which number do I actually care about?
RMS is what your gear handles continuously; MAX is the short burst it can survive without complaint. Match your amplifier's RMS output to your speakers' RMS rating — sizing off the MAX number is how magic smoke gets released.
What does the IP65 rating on DS18 marine gear actually mean?
It's dust-tight and rated against low-pressure water jets from any direction — built for spray, rain, and the occasional wave over the bow, not for full submersion. If something's going somewhere it could sit underwater, that's a different conversation entirely.
How do I match an amplifier to my speakers without guessing?
Add up the RMS rating of everything the amp will power, and pick an amp whose RMS output (at your speakers' impedance — usually 4-ohm) lands close to that total. Undersized is thin sound; wildly oversized is a fast way to blow a voice coil.
Can I mix marine-grade gear into a standard car audio setup, or the reverse?
You can run marine-grade gear in a car — it's just over-built for that environment, no downside besides cost. Running non-weatherproof car audio gear in an open UTV or boat is the direction that causes problems.
What gauge wiring kit do I need?
It scales with your amp's power draw and the length of the run — DS18's OFC kits come in 4-gauge and 8-gauge for a reason. Undersized wiring on a high-draw system is a voltage-drop and heat problem waiting to happen; when in doubt, size up.