About: PRV Audio 8MB500-4 8″ 500W RMS Midbass Loudspeaker - 4 Ohm (Each) 

The 8MB500-4 was designed to provide outstanding durability and strong mid bass punch. This 8″ midbass car speaker is purpose-built to cover the critical low frequency range in a custom car stereo setup. Optimized to work great as a door speaker in car audio applications. If you need a speaker at 8 Ohm for a large custom door panel, we have the 8MB500. 

The latest technology enables us to increase the magnet field dramatically without using huge magnets, making this midbass one of a kind, with a large motor diameter that is not bulky, yet is capable of handling high power! This is a great choice for a 3-way system, where you can combine a super tweeter with a subwoofer to get a full spectrum of audio. 

Built with premium components to ensure absolute high sound fidelity, one of which is its compact push terminals, which connect to its silver tinsel lead wires attached to its high temperature CCAW voice coil. 

Featuring a naturally damp paper cone and special coated dust cap, it makes this midbass speaker able to cover a wide range of frequencies from 75 Hz to 7,500 Hz. Developed to perform well in tight enclosures, its triple roll surround keeps its cone travel linear at high mibdass excursion. Using the right combination of cone and suspension, this speaker is able to reproduce human vocals with dynamic midbass punch.

Features:  

• A deep and punchy midbass response along with a strong vocal response
• Car audio midbass speaker that offers smooth lower response through a punchy mid bass range
• Natural paper cone and cloth triple roll surround for smooth response
• Handles 500 Watts, guaranteeing endurance at loudest volumes
• Impressive choice for high output custom car audio systems – 4 Ohm impedance

Specifications:

• Nominal Diameter: 8″ (203 mm)
• Nominal impedance: 4 Ohm
• Nominal Power Handling: 250 Watts
• Continuous Program Power (RMS): 500 Watts
• Max Peak Power: 1000 Watts
• Sensitivity 2.83V at 1m: 95 dB
• Recommended Hi Pass Crossover (For Full Power Handling): 95Hz **12db Per Octave Crossover
• Frequency Response at -10DB: 75 – 7,500 Hz
• Voice Coil Diameter: 2″ (50 mm)
• Voice Coil Wire: CCAW
• Voice Coil Winding Depth: 12.0 mm
• Former Material: Kapton
• Magnetic Gap Depth: 6.0 mm
• Frame Material: Stamped Steel
• Sold Individually 

Thiele-Small Parameters:

• Equivalent Volume (Vas): 17.25 l
• Excursion (mathematical) (Xmax): 4.50 mm
• Free Air Resonance (Fs): 72.02 Hz
• Mechanical Factor (Qms): 25.59
• Electrical Factor (Qes): 0.66
• Total Factor (Qts): 0.64
• Cone Area (Sd): 241 cm²
• Mechanical Mass (Mms): 22.87 g
• Bl Factor (Bl): 7.52 Tm
• Dc Resistance (Re): 3.6 Ohm
• Inductance (Le): 0.20 mH at 1 kHz
• Mechanical Mass Without Air (Mmd): 20.76 g
• Mechanical Compliance (Cms): 0.214 mm/N

Mounting and Shipping Information: 

• Overall Diameter: 8.25″ (209.5 mm)
• Front Mount Baffle Cutout: 7.12” (181 mm)
• Mounting Depth: 3.32” (84.4 mm)
• Overall Depth: 3.62″ (92 mm)
• Net Weight: 5.55 Lbs (2.52 kg)
• Shipping Weight: 6.15 Lbs (2.78 kg)
• Carton Dimensions (W x L x H): 9.84″ x 9.84″ x 4.33″ (250 x 250 x 110 mm)

Note:  

• Nominal power handling is defined as the maximum RMS power that the speaker can handle in a 2-hour test with a pink noise with 6dB of crest factor and a bandpass filter with 12db/oct tuned in its usable frequency range.
• Continuous Program Power (RMS) is the maximum power that the speaker can handle considering a regular musical program using our recommended filters, this power can be used to define the optimum amplifier power to avoid a clean signal without clipping or saturation.
• Max Peak Power is the maximum power operation for the speaker, this power is allowed just for a few fractions of a second, usually found just on the peaks of the music. Keeping this power for a little longer timer will damage the speaker.