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Pros
  • Compact and space-saving
  • High power output
  • Weather-resistant for marine use
  • Flexible installation
  • Small and compact size
  • High power output
  • Waterproof and dustproof
  • Efficient and reliable
Cons
  • Limited to 4 channels
  • May require additional wiring for installation
  • Limited to 400 watts
  • May require specialized installation
Bottom Line
The Kenwood KAC-M3004 is a compact yet powerful 4-channel amplifier that delivers high-quality sound performance for both car and marine audio systems.
The Kenwood KAC-M1814 is a compact digital 4-channel amplifier designed for high-quality sound in small spaces.
Peak Power
600 watts
400 watts
Channels
4
4
Frequency Response
20Hz-20kHz
20Hz-20kHz
Signal-to-Noise Ratio
90dB
90dB
Dimensions
6.7 x 3.9 x 1.9 inches
5.7 x 3.5 x 1.6 inches
Weight
2.2 pounds
1.2 pounds
Height
5.91 inches
7 inches
Length
6.69 inches
8.5 inches
Weight
2.20462262 pounds
1.5 pounds
Width
3.15 inches
3 inches
Part Number
22154656
KACM1814
Model
KW-KAC-M3004
KACM1814

When it comes to car audio systems, amplifiers play a crucial role in delivering high-quality sound. Kenwood amplifiers are known for their exceptional performance, reliability, and durability. In this comparison, we'll delve into the features and specifications of two popular models: the Kenwood KAC-M3004 and the Kenwood KAC-M1814.

Power Output

The Kenwood KAC-M3004 is a 4-channel amplifier that produces 50 watts RMS per channel at 4 ohms, with a maximum power output of 300 watts. On the other hand, the Kenwood KAC-M1814 is also a 4-channel amplifier, but it produces 45 watts RMS per channel at 4 ohms, with a maximum power output of 180 watts. As you can see, the KAC-M3004 has a higher power output, making it more suitable for larger systems or those that require more headroom.

Signal-to-Noise Ratio

The signal-to-noise ratio (SNR) is an important factor to consider when choosing an amplifier, as it affects the overall sound quality. The Kenwood KAC-M3004 has a SNR of 80 dB, while the Kenwood KAC-M1814 has a SNR of 75 dB. Although both amplifiers have a decent SNR, the KAC-M3004 has a slightly better ratio, which translates to cleaner and more detailed sound.

Frequency Response

The frequency response of an amplifier determines its ability to reproduce the full range of audio frequencies. The Kenwood KAC-M3004 has a frequency response of 20 Hz to 20 kHz, while the Kenwood KAC-M1814 has a slightly narrower frequency response of 30 Hz to 15 kHz. Although both amplifiers can handle the full range of human hearing, the KAC-M3004's wider frequency response makes it more suitable for systems that require accurate reproduction of low-end frequencies.

Build Quality and Features

Both Kenwood amplifiers are built with high-quality components and have a rugged design that can withstand the harsh conditions of a car environment. However, the Kenwood KAC-M3004 has a few additional features that set it apart from the KAC-M1814. For example, the KAC-M3004 has a built-in crossover network, which allows for more flexible system configuration and tuning. Additionally, the KAC-M3004 has a higher maximum input voltage of 11V, making it more suitable for systems with high-output head units.

Conclusion

In conclusion, both the Kenwood KAC-M3004 and the Kenwood KAC-M1814 are excellent choices for those looking to upgrade their car audio system. However, the KAC-M3004 has a few key advantages that make it a better choice for those who require more power, flexibility, and sound quality. With its higher power output, wider frequency response, and built-in crossover network, the Kenwood KAC-M3004 is an ideal choice for larger systems or those that demand exceptional performance. On the other hand, the Kenwood KAC-M1814 is a more affordable option that still delivers great sound quality and reliability, making it a great value for those on a budget. Whether you choose the KAC-M3004 or the KAC-M1814, rest assured that you're getting a high-quality product from a reputable brand like Kenwood amplifiers.