3. Bestseller Amplifier
  5. EA-M4

EA-M4

1 review

165 Watt

EA-M4

1 review

Technical Highlights

  • Class-D amplifier, 4 x 105 W RMS at 4 Ohm, 2 x 340 W bridged.
  • Frequency response from 10 Hz to 36 KHz, damping factor >250.
  • Variable high-pass 20-5000 Hz, variable low-pass 50-5000 Hz.
  • More technical details
€209.25
-25% €279.00 €209.25
2% discount with credit card

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ProductEA-M4

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datasheet
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€209.25
€279.00 €209.25

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The EA-M4 4-channel amplifier from Emphaser combines outstanding quality with timeless design and unique performance. Equipped with a Class-D amplifier circuit and a massive aluminum heat sink, it delivers 4 x 105 watts RMS at 4 ohms and 2 x 340 watts RMS in 2-channel bridged mode. The carefully finished edges, an engraved logo, and the sandblasted surface emphasize its impressive appearance. Additionally, the amplifier offers extensive crossover options, encapsulated 35 mm power terminals, and screw-down RCA sockets. The EA-M4 is a perfect power source for any car audio system.

The Performance

Outstanding quality, timeless design, unique performance – the 4-channel amplifier EA-M4 from the Monolith series by Emphaser not only offers concentrated power, but also exceptional dynamics and remarkable signal fidelity. Minimal distortion as well as a warm, clear sound are characteristics that distinguish this top digital power amplifier. The Class-D amplifier circuit, combined with the massive aluminum heat sink, ensures enormous performance: The 2-ohm stable EA-M4, with an impressive 4 x 105 watts RMS at 4 ohms, is a perfect power source for any car audio system – but it truly excels in 2-channel bridged mode with 2 x 340 watts RMS and extremely low distortion values.

The Design

The amplifier design emphasizes the special character of this exceptional amp: The carefully crafted edges, the engraved logo, and the model designation on the top plate, combined with the sandblasted surface, create an impressive look. The connections are solid – encapsulated 35 mm power terminals and screwed RCA jacks.

The Features

The amplifier offers an extensive crossover that can be routed as either a high-pass or low-pass filter. The crossover range is adjustable over a very wide range from 20 Hz (high-pass) and 50 Hz (low-pass) up to 5000 Hz, making it suitable for active system concepts. The filters can be selected individually and also combined: Highpass, Lowpass, and Bandpass (HPF+LPF).

Main Features EA-M4

  • High-Performance Class-D Amplifier
  • High-quality machined aluminum heat sink with sandblasted surface
  • engraved logo and model number
  • 2 Ohm stable / 4 Ohm stable bridged
  • Integrated variable high-pass filter: 20 – 5000 Hz with 12 dB/oct.
  • Integrated variable low-pass filter: 50 – 5000 Hz with 12 dB/oct.
  • Variable input sensitivity: 0.2 – 8 V
  • 35 mm² power connection terminals

Technical Specifications

  • 105 W x 4 @ 4 Ohm (< 1.0% THD / 13.8V)
  • 165 W x 4 @ 2 Ohm (< 1.0% THD / 13.8V)
  • 340 W x 2 @ 4 Ohm (< 1.0% THD / 13.8V)
  • Frequency range: 10 Hz – 36 KHz
  • Damping factor at 4 Ohm: > 250
  • Signal-to-noise ratio: > 85dB
  • Dimensions WxHxD: 240 x 65 x 185 mm

Scope of Delivery

  • 1 piece amplifier

datasheet

Open data sheet

Frequently Asked Questions about EA-M4

What power does the Emphaser EA-M4 4-Channel Amplifier provide?

The Emphaser EA-M4 Amplifier delivers 4 x 105 Watts RMS at 4 Ohm and switches to 2 x 340 Watts RMS in 2-channel bridged mode. This impressive power is made possible by a Class-D amplifier circuit that has low distortion values. With stable operation at 2 Ohm, the EA-M4 is ideal for demanding car audio setups. The performance of the EA-M4 lies not only in its power but also in the clear signal fidelity, supported by the massive aluminum heat sink, optimizing the technical conditions for a lossless sound experience. The sound remains warm and clear even at high volume.

What crossover options does the Emphaser EA-M4 Amplifier have?

The Emphaser EA-M4 is equipped with an extensive crossover that offers both high-pass and low-pass filters with a cutoff range of 20 Hz (high-pass) and 50 Hz (low-pass) up to 5000 Hz. These filters are variable and can be used individually or combined as a bandpass, allowing for versatile adjustments for an active speaker system. Both filter types operate with a slope of 12 dB/octave. This modular approach provides the user with maximum flexibility in tuning their sound system, whether for strong bass or balanced audio playback, optimal for various applications in the car audio sector.

What technical features does the EA-M4 Amplifier come with?

The EA-M4 Amplifier from Emphaser is equipped with a top-class Class-D amplifier, a robust aluminum heat sink with a sandblasted surface and engraved logo. Power connections are made via 35 mm² encapsulated terminals, while the RCA jacks are screwed in to ensure optimal connections. The input sensitivity is adjustable from 0.2 to 8 V, ensuring universal connection options. The damping factor of over 250 at 4 Ohm and a signal-to-noise ratio of more than 85 dB speak to the quality of this device, which optimally combines flexibility and user-friendliness in both installation and application.

How does the design of the Emphaser EA-M4 affect the sound?

The construction of the EA-M4 has a decisive influence on its sound characteristics. The massive aluminum heat sink allows for efficient heat dissipation, optimizing performance and sound quality. The Class-D amplifier circuit offers minimal distortion and ensures excellent signal fidelity. This combination guarantees a warm, clear sound that remains intact even at higher volumes. The high-quality craftsmanship of the amplifier plays a crucial role in minimizing unwanted vibrations, further emphasizing its audiophile sound fidelity and making the EA-M4 an attractive option for discerning listeners.

What are the dimensions of the Emphaser EA-M4 and how is its compatibility with car installations?

The Emphaser EA-M4 amplifier is compactly sized at 240 mm in width, 65 mm in height, and 185 mm in depth. These dimensions facilitate installation in most vehicle types, especially in areas where larger devices might cause space issues. It is designed to fit in common positions such as under the seat or in the trunk, allowing for flexible placement. The 2-Ohm stability ensures that it performs robustly even in demanding setups. During installation, the easily accessible encapsulated terminals and screwed RCA jacks should be used to ensure lasting connections.

What distinguishes the EA-M4 in Bridged Mode from other amplifiers?

In Bridged Mode, the Emphaser EA-M4 stands out with 2 x 340 Watts RMS at 4 Ohm from many other amplifiers. This results from the Class-D technology, which favors high power efficiency and low heat generation. This operating mode is particularly suitable for powerful subwoofer configurations where higher output power is required. The precise tuning of the crossovers, variable from 50 to 5000 Hz, allows for exact control of the sound image in this mode. These features make it ideal for users who value detail fidelity at high volume without compromising performance.

How does the Class-D amplifier class improve the effectiveness of the EA-M4?

The Class-D Amplifier class of the EA-M4 significantly increases efficiency by optimizing energy consumption and ensuring low heat generation. This technology efficiently converts electrical energy into power, allowing for high dynamics and low distortion. Especially in speaker systems that require precise timing and less distortion, this technology is beneficial. Together with the massive aluminum heat sink, it ensures that there is no loss of quality at moderate or extreme volumes. This overall results in a more detailed and powerful sound, providing the user with an outstanding listening experience.

What are the specifications of the damping factor of the EA-M4?

The damping factor of the Emphaser EA-M4 is over 250 at 4 Ohm, indicating that the amplifier provides excellent control over speaker excursion. A higher damping factor means that the amplifier can efficiently dampen the vibrations of the speaker membranes, reducing resonance. This leads to more precise bass reproduction and clearer mids and highs. Combined with a signal-to-noise ratio of over 85 dB, the EA-M4 ensures that it operates artifact-free and with clear sound even at high volumes, making it ideal for high-fidelity systems.

How does the frequency range of the EA-M4 affect sound quality?

The Emphaser EA-M4 covers a frequency range from 10 Hz to 36 kHz, meaning it can reproduce both deep bass and very high tones without loss. This is particularly important in musical scenes that want to deliver both low-frequency intensity and overtone-rich sounds. The wide bandwidth ensures that all nuances of audio recordings are clearly audible, from thumping bass lines to crystal-clear hi-hats. This ability to effortlessly reproduce a wide frequency range without distortion gives the EA-M4 a sonic depth and versatility that is often sought after in high-end car audio systems.

What advantages does the sandblasted surface of the EA-M4 offer?

The sandblasted surface of the Emphaser EA-M4 not only gives the amplifier a high-quality, scratch-resistant appearance but also contributes to heat absorption. This surface treatment optimizes the cooling process through the aluminum heat sink, increasing the efficiency and lifespan of the amplifier. The edge processing and the engraved logo not only enhance the design but also counteract harmful thermal effects that may occur during intense audio sessions. This allows the user to operate the device worry-free even during longer playtimes without overheating. The appearance seamlessly integrates into modern car interiors.

Manufacturer information/responsible person

ACR Brändli + Vögeli AG
Roland Brändli
Bohrturmweg 1
5330 Bad Zurzach
Switzerland

EU responsible person:
ACR S + V GmbH
Industriestr. 35
79787 Lauchringen
Germany

Contacts: compliance@acr.eu

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