About the Morel Primo 804
Years of experience
Years of experience
Morel developed exciting new technologies when they built their award-winning Ultimo Titanium subwoofer. Now they've applied that knowledge and experience to building their Primo Series sub, a cost-effective bass driver that still offers Morel's signature qualities of high fidelity and high quality.
High efficiency
The Primo 804 12" subwoofer uses a treated laminated paper cone with a high-roll rubber surround to deliver superior bass. The cone is driven by a 2" voice coil of copper wire wound on an aluminum former. This sub handles up to 250 watts RMS (500 watts peak) and is equally at home in a sealed or ported enclosure. Designed for high efficiency, you can power the Primo 804 with a modest amplifier and still enjoy high-level output.
Subwoofer Wiring Diagrams
To see sample wiring diagrams for all common subwoofer/amplifier combinations, check out this informative article.
Product highlights:
- 8" 4-ohm component subwoofer
- external voice coil
- paper laminate cone with rubber surround
- power handling: 250 watts RMS
- peak power handling: 500 watts
- frequency response: 25-900 Hz
- sensitivity: 89 dB
- top mount depth: 4-3/8"
- sealed box volume: 0.42-0.8 cubic feet
- ported box volume: 0.55-1.1 cubic feet
- grille not included
- warranty: 1 year
- MFR # 327556-110
What's in the box:
Morel Primo 804 owner's manual
- One 8" Single 4-ohm voice coil subwoofer
- Owner's manual
Customer reviews for Morel Primo 804
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Average review:
5.0 out of 5 starsCustomer photos
This review was collected as part of a promotion
Pros:
Cons:
More details on the Morel Primo 804
Features & specs
| Features and Specs | ||
|---|---|---|
| Size | 8 -inch | |
| Impedance (Ohms) | 4 | |
| Cone Material | Laminated Paper | |
| Surround Material | Butyl Rubber | |
| Port diameter (inches) | 2 | |
| Port length (inches) | 7.5 | |
| Free-Air | No | |
| Dual Voice Coil | No | |
| Sensitivity |
89 dB at 2.83 volts | |
| Frequency Response | 25 - 900 Hz | |
| Max RMS Power Handling | 250 | |
| Peak Power Handling (Watts) | 500 | |
| Top Mount Depth (inches) | 4 3/8 | |
| Bottom Mount Depth (inches) | 4 5/8 | |
| Cutout Diameter or Length (inches) | 7 11/16 | |
| Vas (liters) | 13.5 | |
| Fs (Hz) | 43 | |
| Qts | 0.6 | |
| Xmax (millimeters) | 8 | |
| Parts Warranty | 1 Year | |
| Labor Warranty | 1 Year | |
| Box Requirements | ||
| Ideal Sealed Box Volume (cubic feet) | 0.61 | |
| Minimum Sealed Box Volume (cubic feet) | 0.42 | |
| Maximum Sealed Box Volume (cubic feet) | 0.8 | |
| Ideal Ported Box Volume (cubic feet) | 0.71 | |
| Minimum Ported Box Volume (cubic feet) | 0.55 | |
| Maximum Ported Box Volume (cubic feet) | 1.1 | |
Product Research
Features
Spring Posts: The wiring terminals are spring posts which accommodate pin connectors, single banana plugs (posts too wide for dual banana plugs), or bare speaker wire up to 10 gauge.
Sealed Box: Morel recommends sealed enclosure sizes from 0.42 ft³ to 0.8 ft³. Sealed enclosures provide the most control over a woofer, will handle a lot of power, and provide accurate sonic reproduction, making them suitable for all types of music.
Ported Box: Morel recommends ported enclosure sizes from 0.55 ft³ to 1.1 ft³, with an optimum volume of 0.71 ft³, using one 2" diameter x 7-1/2" long port. Ported (or vented) enclosures typically provide better overall efficiency than sealed, so they are suitable for use with smaller amplifiers, giving you more bass output from less power. However, this efficiency comes at the expense of very low frequency output.
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