• BOSS Audio P45.4C Phantom 250-watt 4 way auto 4

BOSS Audio P45.4C Phantom 250-WATT 4 way auto 4" Coaxial Speaker (pair)

Product Description


✓4 inch, 250 watt 4-way speakers
✓Impedance: 4 Ohms
✓Frequency: 85Hz – 20KHz
✓Sensitivity: 93 dB @ 1 W/1 m
✓Midrange: 1-1/4 inch cone
✓Mounting depth: 2” (51mm)

What Comes In The Box?

✓One pair of speaker wires
✓Mounting screws
✓Two custom tooled grilles
✓Mounting template

Frame – Diecast Aluminum

There are a couple of advantages of die-casting over stamping speaker frames. One of the more noticeable differences is the fact that a die-cast frame has better resonant frequencies. This means that the frame is able to absorb and transfer much of the energy produced by the speaker, rather than vibrating like a bell would when it is stricken. A die-cast frame is more durable and harder to damage or break, and it has high dimensional stability for complex shapes, good corrosion resistance, good mechanical properties, high thermal and electrical conductivity, and retains strength at high temperatures.

Surround – Rubber

Rubber is a synthetic (man made) material and is valued for its chemical inertness, impermeability to air, and the ability to endure or resist exposure to the many types of weather fronts. Rubber has applications from sports equipment to automotive parts, the medical industry, and more. We use it for the surrounds that connect the cone to the basket. Just as chewing gum uses food-grade butyl rubber as the central gum base, which contributes not only the gum's elasticity but an obstinate, sticky quality, the butyl rubber surround in our speakers can take the equivalent amount of abuse without quitting.

Cone – Electroplate Injection

Electroplating is primarily used to change the surface properties of metallic or metal objects, for example, abrasion and wear resistance, corrosion protection, lubricity, and aesthetic qualities. Similar benefits can be obtained by applying a thin layer of electroplated film to our cones for great sounding speakers that will last you a long time.

Midrange – Mylar

Mylar is a special type of stretched polyester film/plastic sheet manufactured in a range of different styles, finishes, and thicknesses. Generally, the Mylar midrange is a step up from some other materials, primarily because of improved sound dispersion. Since high-frequency sound waves are very directional, a wider dispersion of the sound waves will give you a larger "sweet spot" to work with when setting up your system.

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Voice Coil – Aluminum

Our speakers are capable of higher or elevated temperature strength and fatigue properties that will increase performance and efficiency of heavy duty play time through lower weight and higher operating temperatures.

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Tweeter – Piezo

Piezoelectric tweeters have several advantages over conventional tweeters. They are resistant to overloads that would normally destroy most high frequency drivers, and they can be used without a crossover due to their electrical properties. The active element is basically a piece of polarized material (i.e. some parts of the molecule are positively charged, while other parts of the molecule are negatively charged).

BOSS Audio P45.4C Phantom 250-WATT 4 way auto 4" Coaxial Speaker (pair)

  • Four-inch, four-way speaker with 250 watts maximum power handling
  • Electroplate injection cone with 1-1/2-inch aluminum voice coil
  • Two 1/2-inch piezo tweeters and 1-1/4-inch mylar cone midrange
  • Frequency response: 85Hz - 20kHz
  • Mounting depth: 2 Inches

BOSS Audio P45.4C Phantom 250-WATT 4 way auto 4" Coaxial Speaker (pair)

Item Weight2.9 pounds
Product Dimensions5.5 x 2.7 x 5.5 inches
Item model numberP45.4C
Chassis SizePlease fill in Unit Size
WarrantyONE YEAR
Height (inches)3.30 inches
Width (inches)7.30 inches
Weight5 Pounds

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BOSS Audio P45.4C Phantom 250-watt 4 way auto 4" Coaxial Speaker (pair)

  • from BOSS
  • Product Code: FTSE6418
  • Condition: BRAND NEW
  •  In Stock.
  • $35.18   + 7.99 Shipping