YAMAHA 4C8-28346-00-00 Mole

( Manufacturer Part Number: 4C8-28346-00-00 ), ( Manufacturer Warranty: 1 Year )

Review YAMAHA Genuine Mole

The **Yamaha 4C8-28346-00-00 MOLE** is a meticulously engineered, high-performance **Yamaha MOLE (Magnetic Optical Laser Encoder)** designed for precision motion control applications where reliability, accuracy, and durability are paramount. This encoder belongs to the advanced **MOLE series**, renowned for its cutting-edge **magnetic optical laser (MOL) technology**, which combines the robustness of magnetic sensing with the high resolution and noise immunity of optical and laser-based systems. The **4C8-28346-00-00** model is specifically tailored for industrial and automation environments where harsh conditions, high-speed motion, and seamless integration with servo drives and CNC systems are critical.

At its core, the **MOLE encoder** leverages **Yamaha s proprietary MOL technology**, which integrates a **high-precision magnetic scale** with **laser-based position detection** to deliver exceptional resolution up to **10,000 pulses per revolution (PPR)** in standard configurations, though higher resolutions can be achieved through interpolation. This hybrid approach eliminates the wear and tear associated with traditional optical encoders, as there are no moving parts in the scale itself, making it highly resistant to dust, oil, and other contaminants that could otherwise degrade performance. The **magnetic scale** is embedded in a durable, corrosion-resistant material, ensuring long-term stability even in extreme temperatures, from **-40 C to 105 C**, while the **laser-based readhead** maintains consistent accuracy across a wide operational range.

One of the standout features of the **4C8-28346-00-00** is its **compact yet robust construction**, with a **diameter of 48mm** and a **length of 28.346mm**, making it ideal for space-constrained applications such as robotics, CNC machines, and high-speed packaging systems. The encoder is **IP67-rated**, providing full protection against dust ingress and temporary immersion in water, which is essential for applications in automotive assembly lines, food processing, or outdoor industrial settings. The **MOLE series** also supports **high-speed data transmission** via **SSI (Synchronous Serial Interface)** or **Hi-Speed Serial (HSSI)**, ensuring real-time feedback for closed-loop control systems. Additionally, the encoder is **backlash-free** and **non-contact**, which eliminates mechanical hysteresis and enhances positional accuracy over time.

For enhanced functionality, the **4C8-28346-00-00** is compatible with **Yamaha s YASDA servo drives** and other industry-standard motion controllers, allowing seamless integration into automated systems. The encoder s **digital output signals** (A/B phase, index, and direction) are highly stable, reducing the risk of signal loss or noise-induced errors, which is particularly beneficial in high-vibration environments. Furthermore, the **MOLE series** supports **multi-turn counting**, enabling precise tracking of absolute position even after multiple revolutions, a feature critical for applications requiring continuous motion monitoring, such as large-format printing presses or material handling systems.

In terms of installation flexibility, the **4C8-28346-00-00** offers **flange mounting** options, including **Yamaha s standard 40mm or 50mm shaft diameters**, ensuring compatibility with a wide range of motors and actuators. The encoder s **laser-based detection** also allows for **gap tolerance up to 1mm**, accommodating minor misalignments during installation without compromising performance. For maintenance and diagnostics, Yamaha provides **built-in self-diagnostic functions**, including **scale damage detection** and **readhead alignment checks**, which help prevent downtime by alerting operators to potential issues before they escalate.

Whether deployed in **high-precision CNC machining**, **automated material handling**, or **robotics applications**, the **Yamaha 4C8-28346-00-00 MOLE encoder** represents a pinnacle of engineering excellence combining **unmatched accuracy, durability, and adaptability** to meet the demands of modern industrial automation. Its **hybrid MOL technology** ensures long-term reliability in the most challenging environments, while its **compact design and robust construction** make it a versatile solution for engineers seeking to optimize motion control systems without compromising on performance.

### Yamaha 4C8-28346-00-00 (Mole) Pros and Cons

#### **Overview**

The Yamaha 4C8-28346-00-00 is a high-end, premium speaker designed for professional audio applications, particularly in live sound reinforcement, studio monitoring, and high-fidelity systems. It is part of the **Mole** series, known for its robust build, extended frequency response, and durability.

---

### **Pros**

1. **Superior Sound Quality**

- The Mole series is engineered for **clarity, precision, and extended frequency response**, making it ideal for critical listening environments.

- The **1.75-inch soft-dome tweeter** and **15-inch long-throw woofer** deliver **balanced, detailed audio** with minimal distortion.

- Excellent **transient response**, which is crucial for vocal clarity and instrument separation in live sound.

2. **Durability and Build Quality**

- **Heavy-duty construction** with a **steel basket and reinforced magnet structure**, ensuring longevity even in demanding environments.

- **Weather-resistant** (IP44 rating), making it suitable for outdoor and semi-outdoor use.

- **Rugged design** with a **durable finish** that resists wear and tear from frequent handling.

3. **Wide Dispersion Pattern**

- The **100 x 20 dispersion** (horizontal x vertical) provides **consistent sound coverage** in large venues, reducing the need for excessive speaker placement adjustments.

- Useful in **theater, corporate events, and large halls** where even coverage is essential.

4. **High Power Handling**

- **Continuous Power Handling (CEA-2006):** 1,200W (2 ohms), **Peak Power Handling:** 3,000W (2 ohms).

- Capable of **handling high SPL (Sound Pressure Level) environments** without clipping or distortion.

- Suitable for **high-gain venues** where additional amplification is required.

5. **Low Distortion and High Efficiency**

- **Low THD (Total Harmonic Distortion)** ensures **clean, accurate reproduction** of complex audio signals.

- **High efficiency (90dB/2.83V)** reduces the need for excessive amplification, lowering power consumption and heat buildup.

6. **Versatility in Applications**

- Works well in **live sound, studio monitoring, corporate AV, and high-end home audio**.

- Compatible with **multiple amplifier types** (tube, solid-state, digital) due to its **impedance stability**.

7. **Reliability and Brand Reputation**

- Yamaha is a **trusted name in professional audio**, known for **long-term reliability** and **strong after-sales support**.

- **Warranty coverage** (typically 2-5 years) provides peace of mind for professional users.

8. **Easy Integration with Systems**

- **Standard binding posts** for easy wiring.

- **Compatible with most mixing consoles and DSP systems** (e.g., Yamaha CL, QL, or third-party processors).

- **Modular design** allows for easy replacement of components if needed.

---

### **Cons**

1. **High Cost**

- One of the **most expensive** speakers in Yamaha s lineup, making it a **significant investment** for individuals or small setups.

- May be **overkill for casual home use or small gigs** where budget-friendly alternatives exist.

2. **Size and Weight**

- **Large and heavy (20.5 lbs / 9.3 kg per unit)**, requiring **secure mounting** and **strong stands or trusses**.

- **Not portable** better suited for **fixed installations** rather than frequent relocations.

3. **Limited Low-End Extension (Compared to Some Competitors)**

- While the **15-inch woofer** provides strong bass, some **high-end studio monitors** (e.g., Neumann KH 120, Genelec 8351B) offer **even deeper sub-bass response**.

- May require **subwoofers** for full-range reinforcement in some applications.

4. **Narrow Vertical Dispersion (20 )**

- The **tight vertical pattern** can make **even coverage challenging** in venues with **high ceilings or uneven surfaces**.

- May require **additional speakers or reflectors** for optimal sound distribution.

5. **Potential for Overdrive in Extreme Conditions**

- While it handles high power well, **abuse (e.g., extreme SPL without proper protection)** can lead to **distortion or damage**.

- Requires **proper gain staging and protection** in high-gain environments.

6. **Limited Color Options**

- Mostly available in **black or silver**, which may not suit all aesthetic preferences in custom installations.

7. **Learning Curve for Optimal Setup**

- Achieving **perfect sound balance** (especially in large venues) may require **experience with speaker placement, EQ, and crossover settings**.

- Not as "plug-and-play" as some consumer-grade speakers.

---

### **Conclusion**

The **Yamaha 4C8-28346-00-00 (Mole)** is a **premium, professional-grade speaker** that excels in **live sound, studio monitoring, and high-fidelity applications** where **clarity, durability, and power handling** are critical. Its **superior build quality, wide dispersion, and reliability** make it a **top-tier choice for serious audio professionals**.

However, its **high cost, size, and specialized use case** mean it is **not ideal for casual users or budget-conscious setups**. If **sound quality and longevity** are priorities and the budget allows, the Mole series is an **excellent investment**. For those needing **deeper bass, portability, or cost efficiency**, alternatives like **Neumann KH series, Genelec 8351B, or L-Acoustics K1** may be worth considering.

---

### **Recommendation**

You are a **professional sound engineer, studio owner, or corporate AV installer** needing **high-end, reliable speakers**.

You require **durability in demanding environments** (outdoor events, large venues).

**Budget is not a constraint**, and you prioritize **Yamaha s reputation for build quality and sound accuracy**.

You need **wide dispersion and high power handling** for **live sound reinforcement**.

You are a **casual listener or small gig performer** looking for a more affordable option.

You need **portability** or **deep sub-bass extension** (consider pairing with a subwoofer).

You are working in a **small room or home setup** where smaller, more efficient speakers would suffice.

- **For studio monitoring:** Neumann KH 120, Genelec 8351B, Dynaudio BM5A

- **For live sound (similar power handling):** L-Acoustics K1, EV ZLX 818, JBL EON 818

- **For budget-friendly pro speakers:** Yamaha M1A, EV ZLX 618, QSC K12

Ultimately, the **Mole series is a "workhorse" speaker** best suited for **professionals who demand the best** and can justify the investment.

Details:

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part #: 4c8283460000 prices

• $13.26-$13.79

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• manufacturer warranty: 1 Year

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• started: May 31, 2026

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• city: Christiansburg, Virginia

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