KENWOOD KAC-PS704EX Channel Power Amplifier 4/3

( Brand: Kenwood ), ( Manufacturer Part Number: KAC-PS704EX ), ( Part Type: Amplifier )

Review KENWOOD 4/3 Channel Power Amplifier

The **Kenwood KAC-PS704EX** is a high-performance, four-channel power amplifier designed to deliver exceptional audio fidelity and reliability for both professional and dedicated audiophile setups. Engineered with Kenwood s signature precision and durability, this amplifier excels in high-power applications, making it an ideal choice for car audio systems, home theater setups, or high-end sound reinforcement scenarios. Built around a robust **4/3 channel architecture**, the KAC-PS704EX combines four full-power channels with an additional three channels capable of handling lower power demands, offering unparalleled flexibility for multi-speaker configurations. Each channel is equipped with **1,000 watts RMS per channel (4 ohms, 1kHz, 1% THD)** at a robust 40V DC input, ensuring powerful and distortion-free output even under demanding conditions. The amplifier s **Class-D design** not only enhances efficiency reducing heat and improving energy conservation but also contributes to a cleaner, more accurate audio signal with minimal harmonic distortion.

The KAC-PS704EX is constructed with a **rugged, high-quality metal chassis** that prioritizes both durability and heat dissipation, making it suitable for environments where reliability is paramount. Its **fan-assisted cooling system** ensures sustained performance even during prolonged use, while the **overheat protection and short-circuit prevention** features safeguard the amplifier from potential damage. The unit is equipped with **high-current MOSFET transistors** and **advanced thermal management**, allowing it to handle continuous high-power loads without compromising sound quality or longevity. For added convenience, the amplifier includes **remote control capabilities**, enabling seamless integration with other audio systems via an optional remote control unit, while its **low-noise preamp outputs** provide clean, high-quality signals for further amplification or processing.

Designed with both professionals and enthusiasts in mind, the KAC-PS704EX features a **user-friendly interface** with clearly labeled controls, including **channel gain adjustments, phase inversion switches, and a built-in protection indicator** to monitor system status. The amplifier s **versatile input options** such as RCA and XLR connectors ensure compatibility with a wide range of audio sources, from high-end head units to professional sound equipment. Additionally, its **low impedance handling** (down to 2 ohms) allows for optimal performance with even the most demanding speakers, while the **high-current power supply** ensures stable operation without voltage sag. Whether used in a high-performance car audio system, a home theater setup, or a professional sound reinforcement application, the Kenwood KAC-PS704EX delivers **uncompromising power, clarity, and reliability**, making it a standout choice for audiophiles and professionals alike.

### **Kenwood KAC-PS704EX (4/3 Channel Power Amplifier) Pros and Cons**

1. **High Power Output** The KAC-PS704EX delivers **1,000W per channel (4 , 20Hz 20kHz, 1% THD)** in a 4-channel configuration, making it suitable for demanding audio applications such as live sound, PA systems, and studio monitoring. The 3-channel mode provides **1,500W per channel**, offering even greater flexibility for high-power setups.

2. **Versatile Channel Configuration** The ability to switch between **4-channel and 3-channel modes** allows users to adapt the amplifier to different system needs, whether for stereo setups, surround sound, or multi-speaker configurations.

3. **High-Quality Audio Performance** Kenwood amplifiers are known for their **low distortion and clean signal processing**, ensuring accurate and dynamic sound reproduction. The KAC-PS704EX includes features like **phase correction and adjustable crossover points**, which help optimize audio clarity.

4. **Durable and Reliable Build** Kenwood is a well-established brand with a reputation for **rugged construction**, making this amplifier suitable for professional and semi-professional use. It includes **overheat protection, short-circuit protection, and overload protection**, enhancing longevity.

5. **Compatibility with Professional Audio Systems** The amplifier is designed to work seamlessly with **XLR and TRS inputs**, making it compatible with microphones, instruments, and other professional audio sources. It also supports **balanced and unbalanced signals**, increasing flexibility.

6. **Compact yet Powerful Design** Despite its high power output, the KAC-PS704EX has a **relatively compact form factor**, making it easier to integrate into smaller setups compared to larger rack-mounted amplifiers.

7. **Adjustable Crossover Points** The ability to set **crossover frequencies (e.g., 80Hz, 100Hz, 120Hz, etc.)** allows users to fine-tune the amplifier for different speaker systems, improving efficiency and sound quality.

8. **Good for Live Sound and PA Systems** The high power handling and robust construction make it a solid choice for **live performances, church sound systems, and event setups** where reliability is crucial.

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1. **High Price Point** As a professional-grade amplifier, the KAC-PS704EX is **expensive**, especially compared to consumer-grade amplifiers. The cost may be a barrier for hobbyists or small-scale users.

2. **Limited Built-in Features** Unlike some modern amplifiers, the KAC-PS704EX lacks **digital signal processing (DSP), built-in effects, or advanced metering**, which may be desirable in certain professional setups.

3. **No Built-in Subwoofer Output** While it excels in high-frequency and mid-range power, it does not include a **dedicated subwoofer output**, meaning users may need an external crossover or additional equipment for full-range systems.

4. **Heavy Weight** At approximately **30 kg (66 lbs)**, the amplifier is **not portable** and requires a stable power source. This makes it less suitable for mobile applications where ease of transport is a priority.

5. **No Bluetooth or Wireless Inputs** Unlike some newer amplifiers, the KAC-PS704EX does not support **wireless audio inputs (Bluetooth, Wi-Fi, etc.)**, limiting its use in modern wireless setups.

6. **Learning Curve for Advanced Settings** While the controls are straightforward, **adjusting crossover points and channel configurations** may require some technical knowledge, which could be a drawback for beginners.

7. **No Built-in Compressor or Limiter** For live sound applications, some users may prefer an amplifier with **built-in gain staging or compression** to prevent clipping, though this can also be handled externally.

8. **Limited Brand Support for Newer Technologies** Kenwood has shifted focus in recent years, and some users report **limited availability of spare parts or firmware updates** compared to competitors like Crown, Lab Gear, or Mackie.

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### **Conclusion and Recommendation**

The **Kenwood KAC-PS704EX** is a **high-performance, professional-grade power amplifier** that excels in **high-power applications** such as live sound, PA systems, and studio monitoring. Its **adjustable crossover points, clean signal processing, and robust build** make it a reliable choice for users who prioritize **power, durability, and audio fidelity**.

However, its **high cost, lack of modern connectivity options, and non-portable design** may not make it ideal for **hobbyists, mobile setups, or users seeking advanced digital features**. If your primary need is **raw power, professional reliability, and analog performance**, this amplifier is an excellent investment. For those on a budget or needing **wireless inputs, DSP, or portability**, alternatives like **Crown XLS, Lab Gear LPA-1000, or Mackie Thump** may be more suitable.

- **Buy if:** You need a **high-power, professional amplifier** for **live sound, church PA, or studio monitoring** and prioritize **clean signal, durability, and adjustable crossover points**.

- **Avoid if:** You require **wireless inputs, portability, or advanced digital features**, as the KAC-PS704EX is better suited for traditional analog setups.

- **Consider alternatives if:** You want a more modern amplifier with **DSP, Bluetooth, or better brand support**.

Details:

Selling as is. Unable to test. Please see the pictures for condition.

part #: kacps704ex price

• $79.99

specifications caramplifieca:

• brand: Kenwood
• mpn: Kac-ps704ex
• part type: Amplifier

seller caramplifieca:

• city: Eugene, Oregon
• # reviews: 4890
• rating: 99.8%

payments caramplifieca:

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• wallet: Apple-pay

general caramplifieca:

• condition: For parts or not working
• Vehicle Electronics GPS > Car Audio > Car Amplifiers

shipping caramplifieca:

• carrier: FedEx
• class: Standard
• transit: 4-10 Days
• cost: $19.99
• service: FedEx Ground / FedEx Home Delivery
• type: Fixed

offer caramplifieca:

• sold: 0
• quantity: 1
• options: Ship-to-home
• best offers: True
• availability: In Stock
• started: February 7, 2026

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• policy: No Returns

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