Apocalypse AP-M81AC Pro

Technical Highlights

  • RMS power: 300 W, Maximum power: 600 W, Impedance: 4 Ω.
  • Sensitivity: 98.1 dB, BL value: 9.70, Resonance frequency: 155 Hz.
  • Frequency response: 150–10,000 Hz, Total Q factor: 0.41, Vas: 5.30 L.
  • More technical details
Regular price €207.20
Regular price -20% €259.00 selling price €207.20
2% discount with credit card

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ProductApocalypse AP-M81AC Pro

including VAT
Estimated delivery: Sep 21–Sep 28.
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1 year extra warranty

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datasheet
Regular price €207.20
Regular price €259.00 selling price €207.20

The Apocalypse AP-M81AC Pro from Deaf Bonce is an 8-inch mid-bass speaker, delivered as a pair. It has an RMS power of 300 W and a maximum power of 600 W. The voice coils are made of copper-coated aluminum (CCAW) and have a diameter of 1.75 inches. The diaphragm material is pressed paper, while the magnet is made of ferrite and the frame is made of aluminum. The impedance is 4 ohms with a sensitivity of 98.1 dB. The frequency response covers the range from 150 to 10,000 Hz.

Features
  • Product type: 8-inch (20 cm) mid-bass speaker
  • Delivery contents: Pair
  • RMS power: 300 W
  • Maximum power: 600 W
  • Voice coil material: Copper-coated aluminum (CCAW)
  • Diaphragm material: Pressed paper
  • Magnet material: Ferrite
  • Frame material: Aluminum
  • Mounting depth: 89.0 mm
  • Cutout diameter: 193.0 mm
Technical Specifications
  • Frequency response: 150 – 10,000 Hz
  • Voice coil dimensions: 44.45 mm
  • Impedance: 4 ohms
  • Sensitivity (SPL): 98.1 dB
  • Resonance frequency (Fs): 155 Hz
  • Total Q factor (Qts): 0.41
  • BL (Magnetic force): 9.70
  • Vas (equivalent air volume): 5.30 L

Frequently Asked Questions about Apocalypse AP-M81AC Pro


What is the power output of the Apocalypse AP-M81AC Pro?

The Apocalypse AP-M81AC Pro from Deaf Bonce offers an RMS power of 300 watts and can reach maximum outputs of up to 600 watts. This is ideal for applications where high volumes are required. With an impedance of 4 ohms, it adapts well to various amplifiers to deliver full power. Especially if you enjoy listening to music loudly, the high maximum power is an advantage, as it ensures strong bass reproduction and precise mids. The combination with a frequency range of 150 to 10,000 Hz ensures that both low and mid frequencies are reproduced clearly.

What are the dimensions of the Apocalypse AP-M81AC Pro mid-bass driver?

The Apocalypse AP-M81AC Pro is an 8-inch (20 cm) mid-bass driver with a mounting depth of 89.0 mm. The cutout diameter is 193.0 mm. These size specifications are crucial for proper installation in a vehicle or other acoustic applications. It is important to check the available space to ensure that the speaker can be installed properly without modifications. The aluminum frame material provides additional stability and durability, which is particularly beneficial in high-frequency applications.

What materials are the components of the Apocalypse AP-M81AC Pro made of?

The diaphragm of the Apocalypse AP-M81AC Pro is made of pressed paper, known for its excellent acoustic properties. The voice coil has a diameter of 1.75 inches and is made of copper-coated aluminum (CCAW), which ensures efficient heat dissipation and high current throughput. Ferrite is used as the magnet material, valued for its high magnetic flux density. The frame is made of aluminum, which not only contributes to durability but also ensures resonance-free sound reproduction. This choice of materials supports high power requirements while maintaining sound precision.

What frequency range does the Apocalypse AP-M81AC Pro cover?

The Apocalypse AP-M81AC Pro from Deaf Bonce covers a frequency range of 150 to 10,000 Hz. This wide frequency coverage allows for clean reproduction of both deep bass tones and mid to high frequencies. For music lovers who prefer a broad sound spectrum, the speaker delivers a balanced playback of the various parts of a musical piece. This is particularly advantageous when listening to complex music genres that require a complete and clear delineation of sound frequencies, from the deepest bass to clear mids.

What Thiele-Small parameters are specified for the Apocalypse AP-M81AC Pro?

The following Thiele-Small parameters are documented for the Apocalypse AP-M81AC Pro from Deaf Bonce: a resonance frequency (Fs) of 155 Hz, a total Q factor (Qts) of 0.41, and an equivalent air volume (Vas) of 5.30 liters. These parameters are crucial for the design of the enclosure in which the speaker is installed to achieve optimal acoustic performance. A BL value (magnet strength) of 9.70 underscores the powerful drive strength of the speaker, ensuring precise positioning even at high excursions of the diaphragm.

How do I optimally install the Apocalypse AP-M81AC Pro?

When installing the Apocalypse AP-M81AC Pro, pay attention to the installation depth of 89.0 mm and the cutout diameter of 193.0 mm. First, determine if the existing cutout provides the required dimensions. The aluminum frame design supports stable mounting and minimizes vibrations. Ensure that the speaker is mounted securely and free of vibrations to avoid sound distortions. Also consider the frame rigidity for resonance-free mounting. To avoid resonances, it is helpful to use sealing tape, which optimizes acoustic performance.

Why is the voice coil of the Apocalypse AP-M81AC Pro made of copper-coated aluminum?

The voice coil of the Apocalypse AP-M81AC Pro is made of copper-coated aluminum, or CCAW, which offers an excellent combination of weight and conductivity. Aluminum as a base reduces weight, while the copper coating increases electrical conductivity. This combination allows for efficient control of current and heat, while keeping the mass inertia of the voice coil low. This is particularly important for the reproductive accuracy and dynamic sound of the speaker at high volumes, where precise control and quick adaptation to music signals are required.

What sensitivity does the Apocalypse AP-M81AC Pro have?

The Apocalypse AP-M81AC Pro from Deaf Bonce has a sensitivity of 98.1 dB (SPL). This high sensitivity means that the speaker can produce a strong volume with relatively little amplifier power. For applications where efficiency is crucial, the speaker proves to be particularly energy-efficient. High sensitivity is especially advantageous in environments where amplifier power is limited, or when multiple speakers are used in a complex audio setup and coherent sound reproduction is desired.

Is the Apocalypse AP-M81AC Pro compatible with my vehicle model?

To find out if the Apocalypse AP-M81AC Pro is compatible with your vehicle, you need to compare the installation depth of 89.0 mm and the cutout diameter of 193.0 mm with the available installation locations in the vehicle. Make sure there is enough space to properly mount the speaker. Additionally, the area around the installation location should be stable enough to ensure resonance-free sound reproduction. It is advisable to check the vehicle documentation or consult a professional to avoid potential modifications before installation.

What magnetic force does the Apocalypse AP-M81AC Pro have?

The Apocalypse AP-M81AC Pro from Deaf Bonce has a magnetic force represented by a BL (magnetic force) of 9.70. This magnetic force is a measure of the strength of the magnetic field that drives the diaphragm in the speaker to move. A higher BL value generally means a stronger force acting on the voice coil, resulting in better control over the movement of the diaphragm. This is helpful at high volumes to ensure precise sound reproduction and effectively minimize unwanted distortion or losses in low frequencies.

Manufacturer information/responsible person

Elofssons Försäljnings AB
Björn Elofsson
Gruvgatan 31A
421 30 Västra Frölunda / Gothenburg
Sweden

Contact: support@dbakuten.se

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