Morel Primo SL PSL104 10 Inch 4 Ohm Subwoofer 300w RMS
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The Morel Primo SL PSL104 is a 10-inch shallow-mount subwoofer rated at 300W RMS (600W max transient), with a mounting depth of just 89.4mm (3.5in). It features a carbon fibre cone and single 4 ohm, 51mm (2in) voice coil, and is part of Morel's Primo SL range.
Need a smaller driver? See the Primo SL PSL84 8-inch. For a ready-built amplified option, the Primo Slimline PSL10AE pairs a Primo SL subwoofer with a 350W amplifier in a compact enclosure.
Key specifications
- Size: 10" shallow mount
- Power handling: 300W RMS, 600W max transient
- Sensitivity: 86.4dB (2.83V/1m)
- Frequency response: 10–500Hz
- Mounting depth: 89.4mm (3.5in)
- Mounting cut-out: 232mm
- Unit diameter: 262mm
- Cone: carbon fibre, shallow design
- Voice coil: single 4 ohm, 51mm (2in)
Morel Primo SL PSL104 10 inch 4 ohm shallow mount subwoofer 300W
The Morel Primo SL subwoofers are precision-engineered for high-fidelity bass where mounting depth and enclosure volume are severely limited. Rigid carbon-weave cones deliver an exceptional stiffness-to-mass ratio for fast transient response, low distortion, high output, and natural musical integration.
Available in 8" and 10" sizes, the Primo SL performs accurately in both compact sealed and vented enclosures — ideal for modern vehicles where space is critical. Heavy-gauge stamped steel Uniflow™ chassis, large 2-inch voice coils, and rear-vented motors ensure clean, controlled output and thermal stability. With ultra-slim mounting depths of 3.125" and 3.5", the Primo SL delivers powerful bass where traditional subwoofers won't fit.
Features
- Engineered for dynamic, efficient and musical bass
- Optimised for extremely compact sealed and vented enclosures
- Exceptional shallow mounting depth
- High power handling and high excursion
- FEA-perfected cone and suspension geometry for precision performance
- Low air resistance Uniflow™ chassis with thermal venting
- Heavy-gauge steel chassis minimises resonance
- Klippel optimised performance
Explore the full range in Morel Subwoofers.
Specification
| Overall Dimensions | 10” |
|---|---|
| Voice Coils | Single 4 ohm |
| Power Handling | Wrms 300 |
| Max. Trans. Pwr Handling Wrms | 600 |
| Sensitivity | (2.83 V/1M) dB 86.4 |
| Frequency response | Hz 10-500 |
| Resonance Freq. Fs Hz | 30 |
| Voice Coil | Diameter mm (inch) 51 (2.0) |
| Voice Coil | Height mm (inch) 29.2 (1.1) |
| Voice Coil | Type/Former Aluminum |
| Voice Coil | Wire Copper |
| DC Resistance (ohm) * VC in parallel | 3.6 |
| Voice Coil | Induct. @1 kHz (mH) 1.9 |
| Magnet | System Single magnet vented |
| HE-Magnetic Gap Height mm (inch) | 8 (0.3) |
| BL Product/BXL | 14.7 |
| Max. Linear Ex./Xmax mm (inch) | ±10mm (0.39) |
| Electrical Q Factor QES | 0.58 |
| QTS | 0.52 |
| QMS | 5.02 |
| Moving Mass MMS - gr/os | 180.1 (6.3) |
| Equiv. Can Air Load VAS - L (cu.ft) | 26.3 (0.93) |
| Cone | Type Shallow design cone |
| Cone | Material Carbon Fiber |
| Unit Diameter mm(inch) | 262 (10.3) |
| Mounting Depth | mm (inch) 89.4(3.5) |
| Mounting Cutout | 232 (9.13) |
More specs
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What's Included
- PRIMO SL PSL104
Morel
About the Morel PRIMO SL PSL104
From our tech experts at CEN
The Morel Primo SL PSL104 is a 10-inch shallow-mount subwoofer, part of Morel's Primo SL range, rated at 300W RMS and 600W max transient power. Its carbon fibre cone and single 4 ohm, 51mm (2in) voice coil are housed in a chassis just 89.4mm (3.5in) deep. The 232mm mounting cutout makes this a practical choice for space-restricted builds.
Who it suits
Drivers who want genuine bass but cannot fit a full-depth subwoofer in their boot. The slim profile works well in hatchbacks, saloons and vehicles with shallow spare-wheel recesses. Those with more space who want higher output may prefer the Morel Ultimo TI 104.
Our tech experts advise
Confirm at least 89.4mm of clear depth behind the baffle and a 232mm cutout before ordering. The PSL104 performs in compact sealed or vented enclosures; match enclosure volume to Morel's specifications for best results. At 4 ohms it pairs with most aftermarket amplifiers. Installation is priced per vehicle — see our car audio installation page for details.
Explore the full Morel range at CEN, with fast UK dispatch and expert advice from our Nottingham team. Shop all Morel
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More from Morel Subwoofers
More options from the same range, in stock and ready to go
Frequently Asked Questions
Q: How shallow is the Morel PSL104?
A: Mounting depth is 89.4mm (3.5in), with a 232mm cut-out and 262mm unit diameter.
Q: What enclosure suits the PSL104?
A: Primo SL subwoofers are optimised for compact sealed and vented enclosures, making them suited to vehicles where space is limited.
Q: How much power does the PSL104 handle?
A: 300W RMS and 600W max transient power, with 86.4dB sensitivity (2.83V/1m).
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