PRV Audio 8MR450A 8" inch 8 Ohm (Alto Series) Midrange Car Speaker 450 Watts RMS (Single)
Brand : PRV Audio
- SKU:
- PRVAudio-8MR450A
PRV Audio’s ALTO Series speakers are meticulously crafted and voiced to deliver a natural, smooth sound while maintaining dynamic performance. For superior fidelity, a special composite cone is used to smooth the frequency response and keep the moving mass low, enhancing efficiency.
The 8MR450A boasts all-new features that enable high output and low distortion, making it perfect for delivering crucial midrange response in any high-output sound system. A great addition to the ALTO Series!

- 2″ dual-layer CCAW voice coil wound on a glass fiber former, 8 ohms
- Low inductance for excellent transients and extended high-frequency response up to 9,500 Hz
- Large voice coil winding enhances power handling, providing a continuous program power rating of 450 watts RMS
- High sensitivity of 96 dB makes this a budget-friendly choice for high-output home, car, and professional audio systems
- Full copper sleeve on the pole piece reduces distortion and inductance

The new 8MR450A from the ALTO Series offers everything you need in a midrange pro audio loudspeaker without sacrificing performance. We’ve designed it with a compact and versatile footprint, requiring only 3.21” of mounting depth.
The 38 mm (1.5 in) copper-clad aluminum wire is wound in a double layer with a high-temperature resin adhesive on a robust ventilated glass fiber former. Additionally, a copper sleeve on the pole piece reduces inductance, enhancing the high-frequency response.

A triple roll cloth surround, combined with an optimized fiber-pressed paper cone, ensures a smooth and extended frequency response.
This professional midrange speaker is designed to cover frequencies from 100 Hz to 6,000 Hz in three-way systems. It also excels as a door speaker in car audio applications and as a woofer in two-way satellite speaker setups.
GENERAL SPECIFICATIONS
| Nominal Diameter | 8″ (203 mm) |
| Nominal impedance | 8 Ohms |
| Nominal Power Handling | 225 Watts |
| Continuous Program Power (RMS) | 450 Watts |
| Max Peak Power | 900 Watts |
| Sensitivity 2.83V at 1m | 96 dB |
| Recommended Hi Pass Crossover** **For Full Power Handling | 140 Hz** **12db Per Octave Crossover |
| Frequency Response | 80 – 9,500 Hz |
| Voice Coil Diameter | 1.5″ (38 mm) |
| Voice Coil Wire | CCAW |
| Voice Coil Winding Depth | 11.0 mm |
| Former Material | Kapton |
| Magnetic Gap Depth | 6.0 mm |
| Frame Material | Stamped Steel |

- *Nominal Power Handling:* Defined as the maximum RMS power the speaker can handle over a 2-hour test with pink noise featuring a 6dB crest factor and a bandpass filter with 12dB/oct tuned to its usable frequency range.
- **Continuous Program Power (RMS):** The maximum power the speaker can handle during a regular musical program using our recommended filters. This rating helps define the optimal amplifier power to provide a clean signal without clipping or saturation.
- ***Max Peak Power:** The highest power level the speaker can handle for brief moments, typically during music peaks. Sustaining this power for longer periods will damage the speaker.
THIELE-SMALL PARAMETERS
| Equivalent Volume | Vas | 34.86 l |
| Excursion (mathematical)*** | Xmax | 4.00 mm |
| Free Air Resonance | Fs | 65.26 Hz |
| Mechanical Factor | Qms | 15.19 |
| Electrical Factor | Qes | 0.57 |
| Total Factor | Qts | 0.55 |
| Cone Area | Sd | 241 cm² |
| Mechanical Mass | Mms | 13.78 g |
| Bl Factor | Bl | 7.58 Tm |
| Dc Resistance | Re | 5.8 Ohms |
| Inductance | Le | 0.257 mH at 1 kHz |
| Mechanical Mass Without Air | Mmd | 11.67 g |
| Mechanical Compliance | Cms | 0.432 mm/N |

***Xmax = (Voice coil winding depth - Magnetic Gap depth) / 2 + Magnetic Gap Depth / 4
EXTRA INFO
| Overall Diameter | 8.22″ (209 mm) |
| Front Mount Baffle Cutout | 7.26″ (184.5 mm) |
| Mounting Depth | 3.21″ (81.5 mm) |
| Overall Depth | 3.50″ (89 mm) |
| Net Weight | 4.63 Lbs (2.1 kg) |
| Shipping Weight | 5.07 Lbs (2.3 kg) |
| Carton Dimensions W x L x H | 8.66 x 8.66″ x 4.17″ (220 x 220 x 106 mm) |

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